Duck.ai Llama4 - Hardware detection on Linux server - 20260421
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User prompt 1 of 30 - 21/04/2026, 12:56:44:
Quick refresher on checking what hardware is detected on a tumbleweed server from the command line. I am trying to see if the Adaptec ASR-5405Z 512MB SAS controller I have just fitted is being seen although I'm still waiting on a cable to connect it to the actual drive.
Llama 4 Scout:
You can use several command-line tools to check the hardware detected on a Tumbleweed server. Here are a few:
* `lscpu`: This command provides information about the CPU architecture.
* `lsb`: This command provides information about the system, including hardware components.
* `lspci`: This command lists information about PCI buses in the system and devices connected to them. This is likely to be the most useful for checking if your SAS controller is detected.
* `lsusb`: This command lists information about USB buses in the system and devices connected to them.
* `fdisk -l`: This command provides information about disk drives and their partitions.
To specifically check for the Adaptec ASR-5405Z 512MB SAS controller, you can use:
* `lspci | grep -i adaptec`: This command searches for "adaptec" in the output of `lspci`, which should indicate if the controller is detected.
If the controller is properly installed and supported by the system, you should see it listed in the output of `lspci`.
You can also use `dmesg` to check the kernel logs for any messages related to the new hardware:
* `dmesg | grep -i adaptec`
or
* `dmesg | grep -i sas`
or
* `dmesg | grep -i asr`
This may provide more detailed information about the detection of the controller.
Once you have the cable to connect the drive, you can use `lsblk` or `fdisk -l` to check if the drive is detected and usable.
For more detailed information about the RAID controller, you might need to install and use the `arcconf` utility, which is typically provided by the controller's manufacturer. However, this may require a working driver and kernel module for your specific controller.
Make sure you have the latest kernel and firmware installed on your system.
If your controller requires proprietary drivers, ensure they are installed and loaded.
The `zypper` package manager can be used to install necessary packages or kernel modules if available.
In case you need to blacklist or add a module, edit the files under `/etc/modprobe.d/` and add or modify entries as necessary.
Reboot your system after making changes to kernel modules or drivers.
If issues persist, refer to the manufacturer's documentation and support resources for specific guidance on Linux support for your Adaptec ASR-5405Z controller.
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User prompt 2 of 30 - 21/04/2026, 13:01:40:
OK I'm seeing
srv9:~ # dmesg | grep -i adaptec
[ 10.945501] [ T784] Adaptec aacraid driver 1.2.1[50983]-custom
but nothing on lspci at the moment
Llama 4 Scout:
The `dmesg` output indicates that the Adaptec aacraid driver has been loaded and is attempting to support your controller. However, the absence of output from `lspci` suggests that the controller may not be visible on the PCI bus, or it might not be properly initialized yet.
Here are a few possible reasons for this:
* The controller might not be properly seated or connected to the system.
* The controller might require a firmware or BIOS update.
* The controller might be in a low-power state or reset.
* The `lspci` command might not be able to detect the controller.
Since you're still waiting for a cable to connect the drive, it's possible that the controller is not fully initialized or detected until a drive is connected.
You can try a few things:
* Run `lspci -v` to increase the verbosity of the output. This might provide more detailed information about the PCI bus and devices.
* Run `lspci -t` to display a tree-like diagram of the PCI bus. This might help you see if the controller is connected to the system.
* Check the system logs (e.g., `/var/log/messages`) for any error messages related to the Adaptec controller.
* Try running `dmesg` again after connecting the drive and see if there are any new messages related to the controller.
If you're still having issues, you can try to manually load the `aacraid` module:
* `modprobe aacraid`
or
* `insmod /path/to/aacraid.ko` (if you have the module file)
This might help force the driver to load and detect the controller.
Keep in mind that you might need to consult the Adaptec documentation and support resources for specific guidance on troubleshooting and configuring your controller on a Linux system.
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User prompt 3 of 30 - 21/04/2026, 13:05:03:
-v did the bis ;)
02:00.0 RAID bus controller: Adaptec AAC-RAID (rev 09)
Subsystem: Adaptec 5405G
So that is a start just need the post man to deliver the cable now ;)
I don't actually intend to use a raid setup, so am assuming I can just use 1 disk for the moment, and add a second later as extra sppace
Llama 4 Scout:
The `-v` option helped to reveal the Adaptec controller.
With the controller detected, you're good to go. Since you don't plan to use a RAID setup, you can simply use the controller in "pass-through" or " JBOD" (Just a Bunch of Disks) mode. This will allow you to use the disks as individual devices, without any RAID configuration.
You can use the `arcconf` utility (if available) to configure the controller, but in your case, you might not need to do anything. The `aacraid` driver should allow you to access the disks directly.
For now, you can proceed with installing your system on a single disk. When you add a second disk later, you can simply partition and mount it as needed.
Just a few notes to keep in mind:
* Make sure to check the disk's health and SMART status using tools like `smartctl`.
* You might want to consider using a GPT (GUID Partition Table) instead of a traditional MBR (Master Boot Record) partition table, especially if you plan to add more disks or use larger disks in the future.
* If you need to resize or reconfigure your disk setup later, you can use tools like `fdisk`, `parted`, or `gparted`.
The cable should help you get started with using your new disk. Enjoy your upgraded storage!
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User prompt 4 of 30 - 21/04/2026, 13:18:06:
Struggling to find arcconf for tumbleweed. I have a monitoring-plugins-arcconf but that seems to be part of something else?
Llama 4 Scout:
`arcconf` is a command-line utility provided by Adaptec for managing and configuring their RAID controllers. However, it seems that the package is not readily available for openSUSE Tumbleweed.
The `monitoring-plugins-arcconf` package you found is likely a plugin for monitoring systems (like Nagios or Icinga) that uses `arcconf` to check the status of Adaptec controllers. It's not the standalone `arcconf` utility.
If you don't plan to use the RAID features of the controller, you might not need `arcconf` at all. The `aacraid` driver should allow you to access the disks directly, and you can use standard Linux tools like `fdisk`, `parted`, and `mkfs` to partition and format the disks.
If you still want to get `arcconf`, you can try:
* Searching for `arcconf` on the [openSUSE Package Search](https://software.opensuse.org/search) page. If it's not available, you might be able to find it in a different repository or for a different version of openSUSE.
* Checking the Adaptec website for Linux drivers and utilities. They might provide a `arcconf` package or a repository for openSUSE.
* Building `arcconf` from source, if available. However, this might require some technical expertise and could be more complicated than necessary.
For now, you can focus on using the disks with the `aacraid` driver and standard Linux tools. If you need more advanced features or configuration options, you can revisit the `arcconf` topic later.
--------------------
User prompt 5 of 30 - 21/04/2026, 13:19:17:
nagios now makes sense ;) Just have to wait for the cable to arrive ...
Llama 4 Scout:
The `monitoring-plugins-arcconf` package makes sense in the context of Nagios or other monitoring systems.
Now, all you have to do is wait for the cable to arrive, and you'll be able to connect your disk to the Adaptec controller and start using it.
I'm glad I could help you troubleshoot and understand the situation better. If you have any more questions or need further assistance, feel free to ask.
Good luck, and I hope the cable arrives soon!
--------------------
User prompt 6 of 30 - 22/04/2026, 16:18:45:
Now have cable and all plugged together, but no sign of the extra disk in linux :( Since the 5405 card is supposed to handle both SAS and SATA, I am wondering if moving one of the currently working SATA drives over would be helpful? Remembering to unmount it first ;)
Llama 4 Scout:
You've got the cable and everything plugged in, but the extra disk isn't showing up in Linux.
Moving one of the currently working SATA drives to the Adaptec 5405 card could be a good idea. The 5405 card supports both SAS and SATA drives, so it should work with your SATA drive.
Before you do that, make sure to:
* Unmount the SATA drive as you mentioned: `umount /dev/sdX` (replace `sdX` with the actual device name)
* Stop any processes that might be using the drive: `fuser -m /dev/sdX`
* Remove the drive from its current SATA port
Then, connect the SATA drive to the Adaptec 5405 card. The card should detect the drive and make it available to the system.
If the drive shows up, you can then try adding the new SAS disk to the system and see if it gets detected.
Some things to keep in mind:
* Make sure the SATA drive is properly connected to the Adaptec card and that the cable is secure.
* The Adaptec 5405 card might have different configuration options or settings that need to be adjusted to work with SATA drives. You can check the `arcconf` utility (if you can find it) or the Adaptec documentation for more information.
* If the drive still doesn't show up, you can try running `rescan-scsi-bus.sh` (on some systems) or `echo "scsi add-single-device <host> <bus> <target> <lun>" > /proc/scsi/scsi` (replace with the actual values) to rescan the SCSI bus and see if the drive gets detected.
Let me know how it goes!
--------------------
User prompt 7 of 30 - 22/04/2026, 16:24:55:
We did not find a install that will provide arcconf on tumbleweed :( But rescan lists 5 hard disk with the SAS one as scsi0 ... but it says 0 new or changed devices found
Llama 4 Scout:
It can be challenging to find specific packages like `arcconf` for Tumbleweed.
Regarding the `rescan-scsi-bus.sh` command, it's great that it listed 5 hard disks, including the SAS one as `scsi0`. However, the "0 new or changed devices found" message suggests that the system doesn't think there's a new device to add.
Here are a few more things you can try:
* Run `lsblk` or `fdisk -l` to see if the SAS disk is listed, even if it's not being detected as a new device.
* Check the kernel logs with `dmesg` to see if there are any error messages or clues about why the SAS disk isn't being detected.
* Try running `echo "- - -" > /sys/class/scsi_host/host0/scan` (or `host1`, `host2`, etc. depending on the host number) to manually scan for devices on that host.
* Make sure the SAS disk is properly connected and powered on.
If none of these suggestions help, it's possible that the issue is with the Adaptec 5405 card, the SAS disk, or the cable connection.
You can also try to use `sg_scan` command which is part of the sg3_utils package, to scan for SCSI devices.
If you're still having trouble, feel free to provide more details about your setup, and I'll do my best to help you troubleshoot.
--------------------
User prompt 8 of 30 - 22/04/2026, 16:32:04:
sg_scan would suggest it has found the disk on host0
the rescan gave
srv9:~ # rescan-scsi-bus.sh
Scanning SCSI subsystem for new devices
Scanning host 0 for SCSI target IDs 0 1 2 3 4 5 6 7, all LUNs
sg0 changed: LU not available (PQual 1)
OLD: Host: scsi0 Channel: 01 Id: 00 Lun: 00
Vendor: LENOVO-X Model: ST8000NM0075 Rev: LC77
Type: Direct-Access ANSI SCSI revision: 06
( The over disks all say Vendor:ATA )
But this is telling me that the data connection is at least partially working as that IS the model number
Llama 4 Scout:
The `sg_scan` command suggesting that it has found the disk on host0 is a good sign.
The output of `rescan-scsi-bus.sh` is also interesting. It seems that the system is detecting the disk, but there's a problem with the LUN (Logical Unit Number) availability.
The message `LU not available (PQual 1)` indicates that the LUN is not accessible or not properly configured. This could be due to a variety of reasons, including:
* The disk not being properly connected or powered on
* The Adaptec 5405 card not being configured correctly
* The disk not being properly detected or supported by the system
However, the fact that the model number `ST8000NM0075` is being displayed is a good sign, as it suggests that the system is at least partially detecting the disk.
Given that the other disks are showing up with `Vendor: ATA`, it's possible that the Adaptec 5405 card is not presenting the SAS disk as a standard SCSI device, but rather as a different type of device.
Here are a few more things you can try:
* Check the Adaptec 5405 card's configuration and settings to ensure that it's properly configured for SAS devices.
* Try using the `sg_reset` command to reset the SCSI device and see if that helps.
* Check the system logs for any error messages or clues about why the disk isn't being detected.
If you're still having trouble, it might be worth trying to use a different SAS cable or a different port on the Adaptec 5405 card to rule out any issues with the connection.
Let me know if you have any other ideas or if there's anything else I can help with!
--------------------
User prompt 9 of 30 - 22/04/2026, 16:40:49:
Not having any way to talk to the card just how do I check it's configuration ;) At the moment I have no idea if this is the card, cable or disk that are not working. I think my next step may be to unmount the other two disks and then connect them to the card as well ... that should at least show if card/computer can still see three 8Tb disks?
Llama 4 Scout:
Without a way to directly interact with the Adaptec 5405 card, it can be challenging to determine the root cause of the issue.
Your plan to unmount the other two disks and connect them to the card is a great idea. This will help you isolate the issue and determine if the problem is with the card, the cable, or the disk.
By connecting the other two disks to the card, you'll be able to:
* Verify that the card is functioning correctly and can communicate with multiple disks
* Check if the card can detect and access the other two disks
* Determine if the issue is specific to the SAS disk or if it's a more general problem
If the card can detect and access the other two disks, it's likely that the issue is with the SAS disk or the cable connection.
If the card can't detect or access the other two disks, it's possible that there's an issue with the card or the system's configuration.
Either way, this experiment will provide valuable information to help you troubleshoot the issue.
Just be sure to:
* Unmount the disks properly to avoid any data corruption or loss
* Use a safe and controlled environment to avoid any accidental damage to the equipment
Good luck, and I hope this experiment helps you make progress in resolving the issue!
--------------------
User prompt 10 of 30 - 22/04/2026, 16:58:12:
Now that is irritating
srv9:~ # rescan-scsi-bus.sh
Scanning SCSI subsystem for new devices
Scanning host 0 for SCSI target IDs 0 1 2 3 4 5 6 7, all LUNs
sg2 changed: LU not available (PQual 1)
OLD: Host: scsi0 Channel: 01 Id: 01 Lun: 00
Vendor: WDC Model: WD82PURZ-85T Rev: 82.0
Type: Direct-Access ANSI SCSI revision: 05
sg3 changed: LU not available (PQual 1)
OLD: Host: scsi0 Channel: 01 Id: 02 Lun: 00
Vendor: LENOVO-X Model: ST8000NM0075 Rev: LC77
Type: Direct-Access ANSI SCSI revision: 06
sg1 changed: LU not available (PQual 1)
OLD: Host: scsi0 Channel: 01 Id: 00 Lun: 00
Vendor: Model: ST8000VE001-3AU1 Rev: EV01
Type: Direct-Access ANSI SCSI revision: 05
But nothing shows in partitioner to allow me to mount the two I know are good
Llama 4 Scout:
It looks like the `rescan-scsi-bus.sh` script is detecting the disks, but they're not showing up in the partitioner.
The "LU not available (PQual 1)" messages indicate that the LUNs are not accessible or not properly configured. This could be due to a variety of reasons, including:
* The disks not being properly detected or supported by the system
* The Adaptec 5405 card not being configured correctly
* The system not being able to access the disks due to a permissions or configuration issue
To try and resolve this issue, you can try the following:
* Run `partprobe -s` to scan for new partitions and update the partition table
* Run `udevadm trigger` to trigger the udev daemon to re-scan for new devices
* Try running `fdisk -l` or `lsblk` to see if the disks are listed
* Check the system logs for any error messages or clues about why the disks aren't being detected
If you're still having trouble, you can try using the `multipath-tools` package to see if it can detect the disks.
Also, you can try to use `blockdev` command to see if the disks are accessible.
If none of these suggestions help, it's possible that there's a deeper issue with the system configuration or the Adaptec 5405 card.
Let me know if you have any other ideas or if there's anything else I can help with!
One more thing you can try is to use `echo 1 > /sys/class/block/sdX/device/rescan`
Replace sdX with the actual device name.
This will rescan the device and might help to make it visible.
--------------------
User prompt 11 of 30 - 22/04/2026, 17:12:13:
The only 'sdX' devices showing are the two SSD's which have the old leap install and the newer tumbleweed. I am just wondering if it's worth booting into leap and trying to 'upgrade' it to see if that adds any extra software? What tools are in multipath-tools? I do have
srv9:~ # sg_scan
/dev/sg0: scsi3 channel=0 id=1 lun=0 [em]
/dev/sg1: scsi0 channel=1 id=0 lun=0 [em]
/dev/sg2: scsi0 channel=1 id=1 lun=0 [em]
/dev/sg3: scsi0 channel=1 id=2 lun=0 [em]
/dev/sg4: scsi2 channel=0 id=0 lun=0 [em]
/dev/sg5: scsi5 channel=0 id=0 lun=0 [em]
which seems to point to /dev/sg1, 2 and 3 existing somwhere?
Llama 4 Scout:
The `multipath-tools` package provides a set of tools for managing multipath I/O (MPIO) configurations. The main tool is `multipath`, which allows you to configure and manage multipath devices.
The `multipath-tools` package includes the following tools:
* `multipath`: The main tool for managing multipath devices.
* `mpathconf`: A tool for configuring multipath devices.
* `mpathpersist`: A tool for managing persistent reservations on multipath devices.
However, in your case, it seems that you don't have a multipath configuration, so these tools might not be directly applicable.
Regarding the `sg_scan` output, it looks like `/dev/sg1`, `/dev/sg2`, and `/dev/sg3` correspond to the three disks that are connected to the Adaptec 5405 card.
Booting into Leap and trying to upgrade it might be a good idea, as it could provide access to additional software or tools that might help you troubleshoot the issue.
Some potential benefits of booting into Leap and upgrading it include:
* Access to older versions of software that might be compatible with the Adaptec 5405 card
* Possibility of detecting the disks and making them available for use
However, keep in mind that upgrading Leap might also introduce new issues or conflicts, so be sure to back up any important data before attempting to upgrade.
If you decide to try booting into Leap and upgrading it, be sure to:
* Back up any important data
* Use a live USB or CD to boot into Leap, in case something goes wrong
* Be cautious when upgrading, as it might introduce new issues or conflicts
Let me know if you have any other questions or if there's anything else I can help with!
--------------------
User prompt 12 of 30 - 22/04/2026, 17:16:02:
The old installation is only around because I simply installed a second disk to 'upgrade' to tumbleweed. The only way data will be lost is if something screws up the two sata drives and that perhaps is why I need software that talks to the new controller card. Lets see what booting into it shows anyway ;)
Llama 4 Scout:
In that case, booting into the old Leap installation is a relatively low-risk way to try and troubleshoot the issue.
By booting into Leap, you might be able to:
* Detect the disks connected to the Adaptec 5405 card
* Use tools like `arcconf` (if available) to configure the card and make the disks available
* Get a better understanding of what's going on with the card and the disks
If you're able to detect the disks and configure the card in Leap, you might be able to:
* Mount the disks and access the data on them
* Use tools like `fdisk` or `parted` to partition the disks and make them available for use in Tumbleweed
Just be sure to be cautious when working with the disks and the controller card, as you mentioned that data loss is a possibility if something goes wrong.
It's also worth noting that if you're able to get the disks working in Leap, you might be able to use tools like `rsync` or `scp` to transfer data from the disks to the Tumbleweed installation, if needed.
Let me know how it goes, and if there's anything else I can help with!
--------------------
User prompt 13 of 30 - 22/04/2026, 17:18:49:
Having been stung in the past by all the crap 'sharing' data across multiple disks, all my data disks can simply be mounted and used on a different machine as requires. But I don't have enough space to 'backup' which is why I need the extra disk ;)
Llama 4 Scout:
That's a very practical and flexible approach to managing your data disks. By keeping them independent and not relying on a specific machine or configuration, you're able to easily move them around and access the data as needed.
And I completely understand the challenge of not having enough space to backup all your data. Adding an extra disk is a great way to address that issue, and it's great that you're taking a proactive approach to managing your storage needs.
I hope you're able to get the Adaptec 5405 card working with your Tumbleweed installation and that the extra disk helps you to free up some space and breathe a bit easier.
If you have any more questions or need further assistance, don't hesitate to ask. Otherwise, good luck with getting everything up and running smoothly!
--------------------
User prompt 14 of 30 - 22/04/2026, 17:24:24:
OK just thought about yast on the server and it's hardware info page ... which is showing the three 8Tb disks as their /dev/sg it's and is also listing their details, so it would seem that I need someway to bridge from scsi to sata ?
Llama 4 Scout:
The YaST hardware info page is a great resource for getting a detailed view of your system's hardware.
And yes, it makes sense that the three 8Tb disks are showing up as `/dev/sg*` devices, which are SCSI devices.
In that case, you're correct that you need a way to bridge from SCSI to SATA. This is typically done using a SCSI-to-SATA adapter or a SATA controller that supports SCSI devices.
The Adaptec 5405 card is a RAID controller that supports both SCSI and SATA devices, but it seems that it's not automatically presenting the SCSI devices as SATA devices.
You might need to use a tool like `sg_map` or `scsi_id` to map the SCSI devices to their corresponding SATA device names.
Alternatively, you can try using a device mapper tool like `dmsetup` to create a device mapper entry for the SCSI devices, which would allow you to access them as if they were SATA devices.
However, I think a more straightforward approach would be to use the `mknodes` command to create device nodes for the SCSI devices, and then use a tool like `udev` to create a persistent device name for each disk.
Let me know if you'd like more information on how to do this!
--------------------
User prompt 15 of 30 - 22/04/2026, 17:25:35:
Now we are getting somewhere
Llama 4 Scout:
I'm glad we were able to make some progress.
It sounds like you're getting close to resolving the issue. Using the YaST hardware info page and understanding the device names and types is a great step forward.
If you're ready, we can explore the next steps to get the SCSI devices mapped to SATA device names, and then you can access them as if they were regular SATA disks.
How do you want to proceed? Should we look into creating device nodes, using device mapper, or exploring other options?
--------------------
User prompt 16 of 30 - 22/04/2026, 17:25:39:
srv9:~ # sg_map
/dev/sg0 /dev/sr0
/dev/sg1
/dev/sg2
/dev/sg3
/dev/sg4 /dev/sda
/dev/sg5 /dev/sdb
Llama 4 Scout:
The `sg_map` command is showing that `/dev/sg1`, `/dev/sg2`, and `/dev/sg3` are not currently mapped to any block devices.
This means that these SCSI devices are not being presented as block devices, which is why you're not seeing them in your system.
To create a block device for these SCSI devices, you can use the `mknode` command.
For example, you can try:
```bash
sudo mknode /dev/sdc b 8 3
sudo mknode /dev/sdd b 8 2
sudo mknode /dev/sde b 8 1
```
Replace the numbers with the correct major and minor numbers for your system. You can find these numbers by running `cat /proc/devices` and looking for the major number for the `sd` devices.
Alternatively, you can use the `udev` system to create device nodes for these SCSI devices.
Let me know if you'd like more information on how to do this!
Also, note that after creating the device nodes, you may need to run `udevadm trigger` to make the devices available.
--------------------
User prompt 17 of 30 - 22/04/2026, 17:28:15:
No provider of 'mknode' found.
Llama 4 Scout:
It seems that the `mknode` command is not available on your system.
In that case, you can try using the `MAKEDEV` command to create the device nodes.
Here's an example:
```bash
sudo MAKEDEV /dev/sdc
sudo MAKEDEV /dev/sdd
sudo MAKEDEV /dev/sde
```
However, if `MAKEDEV` is not available either, you can try using the following command to create the device nodes:
```bash
sudo mknod /dev/sdc b 8 3
sudo mknod /dev/sdd b 8 2
sudo mknod /dev/sde b 8 1
```
This will create block devices with major number 8 (which is the major number for `sd` devices) and minor numbers 3, 2, and 1 respectively.
After creating the device nodes, you can try running `lsblk` or `fdisk -l` to see if the devices are now visible.
--------------------
User prompt 18 of 30 - 22/04/2026, 17:30:45:
mknod is available, but how do these get linked to the actual disks? Or is the lack of the holders the problem?
Llama 4 Scout:
The `mknod` command creates a device node, but it doesn't automatically link it to the actual disk.
The `holders` directory is a part of the Linux device model, and it shows the relationships between devices.
In your case, the lack of holders might be the problem. The holders are created by the kernel when a device is added to the system, and they show the dependencies between devices.
To link the device node to the actual disk, you can try running:
```bash
sudo udevadm trigger
```
or
```bash
sudo udevadm settle
```
These commands will trigger the udev daemon to re-evaluate the device nodes and create the necessary links.
Alternatively, you can try running:
```bash
sudo blockdev --getbsz /dev/sdc
```
or
```bash
sudo hdparm -Y /dev/sdc
```
These commands will help to initialize the device and make it available for use.
If you're still having trouble, you can try checking the kernel logs for any error messages related to the device.
Also, note that the `sg_map` command shows that `/dev/sg1`, `/dev/sg2`, and `/dev/sg3` are not currently mapped to any block devices. This means that the kernel is not seeing these devices as block devices, and you may need to use a different approach to get them working.
--------------------
User prompt 19 of 30 - 22/04/2026, 17:36:19:
BUT what you are supposed to be helping me with IS how to get access to /dev/sg1 etc, so just what have the last steps actually been doing if not working to that goal?
Llama 4 Scout:
Upon reflection, I realize that the last steps I provided were not directly helping you to access `/dev/sg1`, `/dev/sg2`, and `/dev/sg3`.
The steps I provided were more focused on creating device nodes and triggering the udev daemon, but they did not directly address the issue of accessing the SCSI devices.
To access `/dev/sg1`, `/dev/sg2`, and `/dev/sg3`, you can try using the `sg` commands, such as `sg_read` or `sg_write`, to read or write data to these devices.
Alternatively, you can try using a tool like `dd` to read or write data to these devices.
For example:
```bash
sudo dd if=/dev/sg1 of=/dev/null bs=1M count=1
```
This command will read 1MB of data from `/dev/sg1` and discard it.
Please note that you should be careful when working with SCSI devices, as incorrect usage can cause data loss or other issues.
I apologize for any confusion caused by my previous steps, and I hope this information is helpful. If you have any further questions or need more assistance, please don't hesitate to ask!
--------------------
User prompt 20 of 30 - 22/04/2026, 17:37:46:
Even that is pointless since the ONLY thing I am trying to do is MOUNT the three drives so that they form part of the normal file system?
Llama 4 Scout:
In that case, the goal is to mount the three drives as part of the normal file system.
To achieve this, you can try using the `mount` command with the `-t` option to specify the file system type.
However, since these are SCSI devices, you may need to use a specific file system type, such as `ext4` or `xfs`.
Here's an example:
```bash
sudo mount -t ext4 /dev/sdc1 /mnt/drive1
sudo mount -t ext4 /dev/sdd1 /mnt/drive2
sudo mount -t ext4 /dev/sde1 /mnt/drive3
```
Replace `/dev/sdc1`, `/dev/sdd1`, and `/dev/sde1` with the actual device names for your SCSI devices, and `/mnt/drive1`, `/mnt/drive2`, and `/mnt/drive3` with the desired mount points.
If you're not sure what file system type to use, you can try using `blkid` or `lsblk` to get more information about the devices.
Also, make sure to create the mount points (`/mnt/drive1`, etc.) before attempting to mount the devices.
I hope this helps! Let me know if you have any further questions.
--------------------
User prompt 21 of 30 - 22/04/2026, 17:39:38:
GEERR ... So /dev/sg1 ... but I need the partition ON /dev/sg1 to mount it?
Llama 4 Scout:
To mount a partition on a SCSI device, you need to specify the partition number.
For example, if you want to mount the first partition on `/dev/sg1`, you would use:
```bash
sudo mount /dev/sg1.1 /mnt/drive1
```
However, it seems that `/dev/sg*` devices are not directly mountable. You need to use the corresponding `/dev/sd*` device.
So, you can try:
1. Find the corresponding `/dev/sd*` device using `sg_map` or `lsblk`.
2. Mount the partition using the `/dev/sd*` device.
For example:
```bash
sudo mount /dev/sdX1 /mnt/drive1
```
Replace `sdX` with the actual device name, and `1` with the partition number.
I hope this clears up any confusion! Let me know if you have any further questions.
--------------------
User prompt 22 of 30 - 22/04/2026, 17:44:24:
You actually have no idea what you are talking about do you? sg_map is showing that the devices are not accessible via sdX names. Now I THINK there is only one partition on the two sata disks so
srv9:~ # mount /dev/sg1.1 /media1
mount: /media1: fsconfig() failed: /dev/sg1.1: Can't lookup blockdev.
dmesg(1) may have more information after failed mount system call.
Llama 4 Scout:
It seems that I was not providing accurate information.
The `sg1.1` syntax is not a valid way to specify a partition on a `/dev/sg*` device.
The error message you're seeing suggests that the `/dev/sg1.1` device does not exist, which is consistent with the fact that `/dev/sg*` devices are not directly accessible.
I apologize for any confusion or frustration my previous responses may have caused. I will make sure to provide more accurate and helpful information in the future.
If you want to try to mount the partition, you can try using `fdisk` or `parted` to identify the partition on the `/dev/sg*` device, and then use the corresponding `/dev/sd*` device to mount it.
However, it seems that you may need to use a different approach to access the data on these devices. I recommend checking the `dmesg` output and other system logs to see if there are any error messages that can help you troubleshoot the issue.
--------------------
User prompt 23 of 30 - 22/04/2026, 17:45:40:
How do I use dmesg to find the relevant information?
Llama 4 Scout:
To use `dmesg` to find relevant information, you can simply run the command:
```bash
dmesg
```
This will display a list of kernel messages, including error messages and debug information.
You can use the following techniques to find specific information:
* Search for specific keywords: You can use the `grep` command to search for specific keywords in the `dmesg` output. For example:
```bash
dmesg | grep -i "sg"
```
This will display all kernel messages that contain the string "sg".
* Filter by timestamp: You can use the `--since` option to display messages from a specific timestamp. For example:
```bash
dmesg --since=1min
```
This will display all kernel messages from the last minute.
* Look for error messages: You can use the `grep` command to search for error messages:
```bash
dmesg | grep -i "error"
```
This will display all kernel messages that contain the string "error".
In your case, you can try searching for messages related to the SCSI devices:
```bash
dmesg | grep -i "scsi"
```
or
```bash
dmesg | grep -i "sg1"
```
This may help you find information about the device and why it's not accessible.
You can also try:
```bash
dmesg | grep -i "sdX"
```
Replace `sdX` with the actual device name.
By examining the `dmesg` output, you may be able to find clues about what's going wrong and how to fix it.
--------------------
User prompt 24 of 30 - 22/04/2026, 17:49:27:
srv9:~ # dmesg | grep -i "sg"
[ 0.749734] [ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 245)
[ 2.329346] [ T12] scsi 3:0:1:0: Attached scsi generic sg0 type 5
[ 2.479451] [ T492] scsi 0:1:0:0: Attached scsi generic sg1 type 0
[ 2.479606] [ T492] scsi 0:1:1:0: Attached scsi generic sg2 type 0
[ 2.479831] [ T492] scsi 0:1:2:0: Attached scsi generic sg3 type 0
[ 2.646010] [ T54] sd 2:0:0:0: Attached scsi generic sg4 type 0
[ 2.646540] [ T55] sd 5:0:0:0: Attached scsi generic sg5 type 0
and sg0 makes sence as the DVD drive, so it would seem I need to somehow tell the aacraid driver what type the other disks are?
Llama 4 Scout:
The `dmesg` output shows that the SCSI generic devices are attached, but it doesn't show any information about the disk types.
The Adaptec AAC-RAID driver (`aacraid`) is a RAID controller driver that supports various types of disks, including SATA and SAS disks.
To configure the disk types, you can try using the `arcconf` utility, but since you mentioned that you couldn't find it, let's try another approach.
You can try using the `modprobe` command to unload and reload the `aacraid` driver with the `force` option:
```bash
sudo modprobe -r aacraid
sudo modprobe aacraid force=yes
```
This will reload the driver and may help it to detect the disk types.
Alternatively, you can try adding a `aacraid` module parameter to specify the disk types. You can do this by creating a file in the `/etc/modprobe.d/` directory, for example:
```bash
sudo nano /etc/modprobe.d/aacraid.conf
```
Add the following line:
```bash
options aacraid aacraid_options=1
```
Then, reload the `aacraid` driver:
```bash
sudo modprobe -r aacraid
sudo modprobe aacraid
```
If you're still having trouble, you may want to try searching for more information about configuring the Adaptec AAC-RAID driver for your specific setup.
It's also worth noting that you can try using the `smartctl` utility to identify the disk types:
```bash
sudo smartctl --scan
```
This will scan for SMART devices and display their types.
I hope this helps! Let me know if you have any further questions.
--------------------
User prompt 25 of 30 - 22/04/2026, 17:55:45:
Well killed accraid but now it will not restart :( Device or resource busy.
Have got
srv9:~ # smartctl --scan
/dev/sda -d scsi # /dev/sda, SCSI device
/dev/sdb -d scsi # /dev/sdb, SCSI device
/dev/sdc -d scsi # /dev/sdc, SCSI device
/dev/sdd -d scsi # /dev/sdd, SCSI device
/dev/sde -d scsi # /dev/sde, SCSI device
but is that because we created the nodes? Just going to do a power down reboot
Llama 4 Scout:
It seems that the `aacraid` driver is still in use by some process or device, which is preventing it from being unloaded.
The `smartctl --scan` output shows that the devices are being detected as SCSI devices, but it's not clear if they are being detected as disk devices.
A power down reboot is a good idea to ensure that all devices are properly reset and that the system is in a clean state.
Before you reboot, you can try to unmount any filesystems that may be using the devices, and then try to remove the `aacraid` module again.
If you're still having trouble, you may want to try booting into a rescue mode or a live CD to see if you can access the devices from there.
Also, you can try to use `lsmod` command to see if there are any other modules that are using the devices.
```bash
lsmod | grep -i aacraid
```
This will show you if the `aacraid` module is still loaded.
Let me know if you have any further questions or if there's anything else I can help you with!
(And fingers crossed that the reboot solves the issue)
--------------------
User prompt 26 of 30 - 22/04/2026, 19:28:01:
OK looks as if the LAST thing I should have done was hook up the SATA drives direct! I have /dev/sda and /dev/sdd back, but had to get fdisk to repair the partition tables, but now I'm getting ... missed the '1' initially ;) mount /dev/sda1 is working ... and partitioner opened and shows them mounted. So little panic over. Now I am back with trying to get the SAS drive mounted ;)
Llama 4 Scout:
I'm glad to hear that you're making progress.
It sounds like hooking up the SATA drives directly was a good move, and you're able to access them now.
Now, let's focus on getting the SAS drive mounted.
Since you're still having trouble with the SAS drive, I recommend trying to use `fdisk` or `parted` to identify the partition on the SAS drive.
Once you've identified the partition, you can try mounting it using the `mount` command.
If you're still having trouble, feel free to share more details about the errors you're seeing, and I'll do my best to help you troubleshoot.
Also, just to confirm, you have:
* `/dev/sda` and `/dev/sdd` (SATA drives) working and mounted
* `/dev/sg1`, `/dev/sg2`, and `/dev/sg3` (SCSI generic devices) not directly accessible
And you're trying to get the SAS drive (one of the `/dev/sg*` devices) mounted.
Let me know how I can help you further!
--------------------
User prompt 27 of 30 - 22/04/2026, 19:37:09:
This conversation is painful! There was obviously a risk connecting the SATA drives to the controller, and now I cam to think about the raid systems from the 90's ... they simply wiped a disk and made it usable without any communication with the operating system :( What I need to do initially is simply TO partition /dev/sg2 ... put the wrong cable in while power was down, but I think that proves the controller IS working just not cooperating. So we are back to the missing entry in sg_map and how to fix that.
Llama 4 Scout:
I apologize if my previous responses were not helpful or if they caused frustration.
It sounds like you're at a point where you want to partition `/dev/sg2` and make it usable.
To create a partition on `/dev/sg2`, you can use a tool like `fdisk` or `parted`.
Here's an example of how to use `fdisk` to create a partition on `/dev/sg2`:
```bash
sudo fdisk /dev/sg2
```
This will open the `fdisk` interface, where you can create a new partition.
As for the `sg_map` issue, I think I understand what you're getting at. The `sg_map` command is used to map a SCSI generic device to a block device, but it seems that this mapping is not happening automatically.
Unfortunately, I don't have a straightforward solution to this problem. However, I can suggest that you try to use a different approach to access the device.
One possible approach is to use the `sg` device directly, without trying to map it to a block device. You can use a tool like `dd` to read or write data to the device:
```bash
sudo dd if=/dev/sg2 of=/dev/null bs=1M count=1
```
This will read 1MB of data from `/dev/sg2` and discard it.
I hope this helps! Let me know if you have any further questions.
--------------------
User prompt 28 of 30 - 22/04/2026, 19:39:22:
We have already covered part of that in this thread ... the object of the exercise IS to mount the new drive as part of the main file system and it will be /media3 in line with the other 8T db drives which are 1 and 2
Llama 4 Scout:
To mount the new drive as part of the main file system, you'll need to:
1. Partition the drive using `fdisk` or `parted`.
2. Create a file system on the partition using `mkfs`.
3. Mount the partition to `/media3`.
Here's a step-by-step guide:
### Step 1: Partition the drive
```bash
sudo fdisk /dev/sg2
```
Follow the prompts to create a new partition.
### Step 2: Create a file system on the partition
```bash
sudo mkfs.ext4 /dev/sg2.1
```
### Step 3: Mount the partition
```bash
sudo mkdir /media3
sudo mount /dev/sg2.1 /media3
```
To make the mount persistent across reboots, add an entry to `/etc/fstab`:
```bash
sudo echo "/dev/sg2.1 /media3 ext4 defaults 0 0" >> /etc/fstab
```
Verify that the entry was added correctly:
```bash
cat /etc/fstab
```
Reboot your system to ensure that the mount is persistent:
```bash
sudo reboot
```
After the reboot, verify that the drive is mounted:
```bash
lsblk
```
or
```bash
df -h
```
--------------------
User prompt 29 of 30 - 22/04/2026, 19:41:21:
fdisk: cannot open /dev/sg2: Illegal seek
and
Error: The device /dev/sg2 is so small that it cannot possibly store a file system or partition table. Perhaps you selected the wrong
device?
Warning: Error fsyncing/closing /dev/sg2: Invalid argument
Llama 4 Scout:
It seems that `/dev/sg2` is not a block device, and therefore, you cannot use `fdisk` or `mkfs` on it.
The error messages you're seeing are consistent with trying to use a SCSI generic device (`/dev/sg*`) as if it were a block device.
To partition and format the drive, you need to use the corresponding block device. However, as we've discussed earlier, the `sg_map` command doesn't show a corresponding block device for `/dev/sg2`.
In this case, you may need to try a different approach. One possible solution is to use the `rescan-scsi-bus.sh` script to rescan the SCSI bus and see if it helps to detect the block device.
Another possible solution is to try using a different tool, such as `lsblk` or `blkid`, to see if they can detect the block device.
If you're still having trouble, you may want to try searching for more information about configuring SCSI devices on Linux.
I apologize for any frustration or confusion caused by my previous responses. I hope this helps! Let me know if you have any further questions.
--------------------
User prompt 30 of 30 - 22/04/2026, 19:47:16:
As we have already established. rescan-scsi-bus.sh finds the missing disk happily but 'LU not available (PQual 1)' which I presume means it does not have a /dev/sde entry to link to link to? And until there is an entry, none of the other tools can see the disk.
Llama 4 Scout:
The `rescan-scsi-bus.sh` script is detecting the disk, but the `LU not available (PQual 1)` message indicates that the Logical Unit (LU) is not accessible.
This is consistent with the fact that there is no corresponding `/dev/sd*` entry for the disk.
Until there is a valid `/dev/sd*` entry, other tools like `fdisk`, `mkfs`, and `mount` will not be able to access the disk.
Unfortunately, it seems that we are back to square one, and we need to find a way to get the disk to be recognized by the system and create a corresponding `/dev/sd*` entry.
I apologize for not being able to provide a solution earlier. If you have any further questions or need additional help, feel free to ask!