ZFS, accessing harddrives

[phill]

hi .
have 2 HD’s that i can’t access . I’ve looked but haven’t had any success with with what is out there , updated to the latest kernel but still unable to mount . manjaro cinnamon

[Mirdarthos]

Hi @phill,

In order for us, or anyone for that matter, to be able to provide assistance, more information is necessary. To that end, please see:

• [HowTo] Provide System Information,
• [HowTo] Post screenshots and links,
• [HowTo] Request support, and
• [HowTo] Post command output and file content as formatted text.

Hope you manage!

---

Tip:

To provide terminal output, copy the text you wish to share, and paste it here, surrounded by three (3) backticks, a.k.a grave accents. Like this:

```

pasted text

```

This will just cause it to be rendered like this:

Portaest sed
elementum
cursus nisl nisi
hendrerit ac quis
sit
adipiscing
tortor sit leo commodo.

Instead of like this:

Portaest sed elementum cursus nisl nisi hendrerit ac quis sit adipiscing tortor sit leo commodo.

Thereby improving legibility and making it much easier for those trying to be of assistance.

Please edit your post accordingly.

[megavolt]

Hello @phill

@phill

I’ve looked but haven’t had any success with with what is out there , updated to the latest kernel but still unable to mount

hm why I can’t believe you? Did you read this: ZFS - ArchWiki ?

[phill]

[Keruskerfuerst]

Can you post fdisk -l and blkid ?

[phill]

[phill@the-slaughter-house ~]$ sudo fdisk -l
[sudo] password for phill: 
Disk /dev/sda: 2.73 TiB, 3000592982016 bytes, 5860533168 sectors
Disk model: WDC WD30EZRZ-00G
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 87FE0F32-7EEF-11E7-B842-7085C2412F9C

Device       Start        End    Sectors  Size Type
/dev/sda1      128    4194431    4194304    2G FreeBSD swap
/dev/sda2  4194432 5860533127 5856338696  2.7T FreeBSD ZFS


Disk /dev/sdb: 2.73 TiB, 3000592982016 bytes, 5860533168 sectors
Disk model: WDC WD30EZRZ-00G
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 88DD19A9-7EEF-11E7-B842-7085C2412F9C

Device       Start        End    Sectors  Size Type
/dev/sdb1      128    4194431    4194304    2G FreeBSD swap
/dev/sdb2  4194432 5860533127 5856338696  2.7T FreeBSD ZFS


Disk /dev/nvme0n1: 232.89 GiB, 250059350016 bytes, 488397168 sectors
Disk model: WDC WDS250G2B0C-00PXH0                  
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x53d1d1b0

Device         Boot Start       End   Sectors   Size Id Type
/dev/nvme0n1p1 *     2048 488392064 488390017 232.9G 83 Linux

[Mirdarthos]

Tip, for providing terminal output:

When posting terminal output, copy the output and paste it here, wrapped in three (3) backticks, before AND after the pasted text. Like this:

pasted text

This will just cause it to be rendered like this:

Sed
sollicitudin dolor
eget nisl elit id
condimentum
arcu erat varius
cursus sem quis eros.

Instead of like this:

Sed sollicitudin dolor eget nisl elit id condimentum arcu erat varius cursus sem quis eros.

Alternatively, paste the text you wish to format as terminal output, select all pasted text, and click the </> button on the taskbar. This will indent the whole pasted section with one TAB, causing it to render the same way as descrribed above.

Thereby increasing legibility thus making it easier for those trying to provide assistance.

Please refrain from posting screenshots of text.

[phill]

[phill@the-slaughter-house ~]$ sudo blkid
[sudo] password for phill: 
/dev/nvme0n1p1: UUID="79af732f-c1c9-443d-8245-550cb8e6a568" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="53d1d1b0-01"
/dev/sdb2: LABEL="Tank" UUID="11272187149484297355" UUID_SUB="15124852929811023038" BLOCK_SIZE="4096" TYPE="zfs_member" PARTUUID="88ef9195-7eef-11e7-b842-7085c2412f9c"
/dev/sda2: LABEL="Tank" UUID="11272187149484297355" UUID_SUB="4059934201776870826" BLOCK_SIZE="4096" TYPE="zfs_member" PARTUUID="88108b6e-7eef-11e7-b842-7085c2412f9c"
/dev/sdb1: PARTUUID="88e73aad-7eef-11e7-b842-7085c2412f9c"
/dev/sda1: PARTUUID="88082efe-7eef-11e7-b842-7085c2412f9c"

[Mirdarthos]

ZFS, accessing harddrives

Tip, for providing terminal output: When posting terminal output, copy the output and paste it here, wrapped in three (3) backticks, before AND after the pasted text. Like this: pasted text This will just cause it to be rendered like this: Sed sollicitudin dolor eget nisl elit id condimentum arcu erat varius cursus sem quis eros. Instead of like this: Sed sollicitudin dolor eget nisl elit id condimentum arcu erat varius cursus sem quis eros. Alternatively, paste the text you wish to form…

[Keruskerfuerst]

Which drives are contained in your system ?

[phill]

all 3 . this system was running truenas now running manjaro cinnamon .

[megavolt]

@phill Just an advice: If you want support then at least say what you have tried and at which point you stucked. I just see that all you have tried is clicking on a button. ZFS cannot be mounted like that.

[Keruskerfuerst]

Are these 3 drives, which are listed by fdisk -l, the drives you want to mount ?

Then you can mount one drive with mount -t zfs /dev/sda1 /mnt.
All other drives similar.

[phill]

Ok . So I’m a novice when it come to commands or pretty much anything else in Linux , have looked through guides from around the net and here . Have installed ZFS packages from AUR , ZFS mount. Service ZFS target I can say ,100%, I have missed or have not done something to get these hardrives accessable … The 2 hardrives named “tank” are the ones I am trying to access. The other 1 is the one I’m running on

[Mirdarthos]

Please see and go through this:

[HowTo] Provide System Information

This tutorial is superseded by this one. Remember all Tutorials are wiki posts that can be edited by TL2 (Trust Level 2) members and above. Welcome to Manjaro! To allow all of us helpful people on this forum TO HELP YOU, we need some basic information about your system. This probably means you described the symptoms of your problem, but now we need some more information to know where the origin of your issue is exactly. Someone else probably linked you to…

Also the link @megavolt gave you:

ZFS, accessing harddrives

Hello @phill hm why I can’t believe you? Did you read this: ZFS - ArchWiki ?

[megavolt]

@phill So if I look at this guide:

[HowTo] Install full Manjaro on ZFS filesystem

Difficulty: ★★★★☆ Background Below you can find a comprehensive tutorial on how to install Manjaro on ZFS collected from various sources into one. Although Manjaro-architect supports installing system on ZFS, such tool cannot find the existing zfs pool for system installation. The below instruction involves manual installation, i.e. installing in the Arch way. 0. Preparation Download the latest Manjaro ISO (the edition of your choice) from the Manjaro website and burn it to a bootable Live M…

You have to import a pool and mount a dataset.

@dobedobedo

Finally, export the zfs pool and then import them again with sudo. Do not skip this or you’ll have problems importing them later.

sudo zpool export <zfs-pool-name>
sudo zpool import -d /dev/disk/by-id -R /mnt <zfs-pool-name> -N

With the argument -R /mnt, when you mount your zfs dataset for the system later, it will automatically use /mnt as the root mountpoint and mount to the relative path under /mnt (e.g. if you set the mountpoint of the dataset to /home, then it will be mounted at /mnt/home).

4. Mount and configure the root filesystem

Mount the zfs datasets with sudo zfs mount, for example:

sudo zfs mount <zfs-pool-name>/<zfs-dataset-for-root>

This should mount the root dataset (in the above example, <zfs-pool-name>/manjaro/root) to /mnt.

I cannot guide you here, since I never used zfs and will not. BTRFS fits everything I need.

[Zesko]

I see you try to access data from FreeBSD ZFS in this disk.

• You need to install zfs-dkms and zfs-utils.
• You need to run sudo modprobe zfs.
• Then run sudo zpool import
• Check sudo zpool status to show a list

[winnie]

@phill

Ok . So I’m a novice when it come to commands or pretty much anything else in Linux

ZFS is still a second-class citizen for Linux, so don’t expect to use it gracefully with a GUI. You’ll need to issue zpool and zfs commands in the terminal to access them.

TrueNAS builds a web GUI interface that simplifies the process: point and click.

However, it’s specifically made to be user-friendly, GUI-only. It’s their unique customization.

So just keep this in mind if you want to start using ZFS on Linux.

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@megavolt pointed you in right direction.

ZFS, accessing harddrives

@phill So if I look at this guide: You have to import a pool and mount a dataset. I cannot guide you here, since I never used zfs and will not. BTRFS fits everything I need.

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If you want to get more streamlined and sophisticated, then you can incorporate SystemD targets and services in the workflow with ZFS.