Archiving Snapshots and Root Pool Recovery. The following sections provide information about installing and updating a ZFS root pool and configuring a mirrored root pool. The AI installer provides the flexibility of installing a ZFS root pool on the default boot disk or on a target disk that you identify.
You can specify the logical device, such as c1t0d0s0or the physical device path. After the installation, review your ZFS storage pool and file system information, which can vary by installation type and customizations.
For example:. In the above output, the Active field indicates whether the BE is active now represented by N and active on reboot represented by Ror both represented by NR. You can identify your BEs by using the beadm list command. You can use the pkg update command to update your ZFS boot environment. If you do not configure a mirrored root pool during an automatic installation, you can easily configure a mirrored root pool after the installation.
In the above output, the resilvering process is not complete. Resilvering is complete when you see messages similar to the following:. The root pool disk is failing. In a non-redundant pool, if the disk is failing so that the system won't boot, you'll need to boot from an alternate media, such as a CD or the network, before you replace the root pool disk.
In a mirrored root pool configuration, you might be able to attempt a disk replacement without having to boot from alternate media. You can replace a failed disk by using the zpool replace command or if you have an additional disk, you can use the zpool attach command.
See the steps below for an example of attaching an additional disk and detaching a root pool disk. Systems with SATA disks require that you offline and unconfigure a disk before attempting the zpool replace operation to replace a failed disk. On some hardware, you do not have to online or reconfigure the replacement disk after it is inserted.
Identify the boot device pathnames of the current and new disk so that you can test booting from the replacement disk and also manually boot from the existing disk, if necessary, if the replacement disk fails.
In the example below, the current root pool disk c2t0d0s0 is:. If you want to re-create your existing BE in another root pool, follow the steps below. You can modify the steps based on whether you want two root pools with similar BEs that have independent swap and dump devices or whether you just want a BE in another root pool that shares the swap and dump devices. After you activate and boot from the new BE in the second root pool, it will have no information about the previous BE in the first root pool.
If you want to boot back to the original BE, you will need to boot the system manually from the original root pool's boot disk. Search Scope:. Document Information Preface 1. A new BE, solaris-1is created automatically and activated.Welcome to LinuxQuestions.
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They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own. Click Here to receive this Complete Guide absolutely free. At some point, an upgrade had caused ZFS to stop automatically importing the pool on it's own.
Not sure if the upgrade that caused this is the kernel, systemd, or ZFS itself. It's been like this for a while. I can manually import the pool with the same command shown in the output below. Been there. A starting script checks if zfs module installed, if not it skip ZFS activation. As a dirty workaround I've forced loading module at boot time.
See how here: ZFS recepies. Find More Posts by voleg. For anyone stumbling upon this thread like I did, here is the solution to this particular idiotic problem.
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Already on GitHub? Sign in to your account. Pool is not imported or mounted on boot. I have to manually import the pool at which time it is automatically mounted. The mountall log does not have the ZFS message that should appear at the --debug level. Double-check that the ubuntu-zfs package is installed and that both --verbose and --debug are set. Twenty-five disks require a large PSU, or something designed to use dual or triple sources.
If you bought these cards online for a good price to use in a home media toaster, then they're probably counterfeit or cross-flashed. This looks like the well-known mpt2sas problem described in the FAQ. Also note that manually partitioned pool members can aggravate this problem because slow partition scans sometimes glitch ZFS. Some people do this to remove the small slack area that a regular zpool create appends to the EFI table, and it causes a non-zero number of problems.
The mountall --verbose output in the gist linked above is from running the command as root. When running mountall --verbose as a normal user, the following is the result:. I'm not quite sure how to rule these out as a source of error, except that they were working fine previously with a full drive complement. The swap partition is located on the system SSD and is not a pool device. I have nevertheless disabled the swap by commenting it out in fstab but with no change in behaviour.
Setting it as high as 3 minutes did not get the pool to auto-import and mount. This can happen when ZoL modules are mismatched with the kernel, like after an apt-get dist-upgradeor if the default module parameters were overridden, such as after performance tuning. Run dkms status and check that everything is in the installed state and manually loadable.What's new New posts New resources Latest activity.
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ZFS pools not auto-importing at boot
Thread starter Beeth Start date Jan 7, Status Not open for further replies. Beeth Neophyte. Joined Jan 5, Messages 5. I keep the FreeNAS offline most of the time, but when I powered it on last week I found one of the disks having bad sectors from smartd. I upgraded FreeNAS from 9. I put ada3 offline zfs became degradedpowered FreeNAS off, swapped a good disk in, powered it on, I could see the zpool for about two minutes, then suddenly the system hung and I lost connection from GUI and SSH, no response from the console.
I reinstalled FreeNAS 9. I tried FreeNAS 9. I did a lot of google search, I found quite a few people complained about the "zpool import" took long time or caused system hang, but I saw no solution. I found I could zpool import the pool as readonly WHY??? The fault tolerance of the pool may be compromised if imported. Applications may be affected.Asked by NikosAlexandris. I let the system laptop emerge world updates overnight.
In the morning I found it hang. No reaction on any kind of keystrokes. It has happened again, yesterday, after replacing udev with eudev and upower with upower-pm-utils. And, my guessis that it has to do with it. Have you tried booting with System Rescue CD, 'chrooting' into your install and exporting the zpool from within the chroot? I exported the pool and tried to reboot the system. Now, fianlly, it complains that " Failed to import your zfs root dataset! It should be fairly easy to understand what is wrong currently in my Funtoo box and fix it, right?
Hmmm, another reboot and a step closer. Thanks, that's what I am working on the last hours Will report back here when I fix everything. I am trying to follow the wiki-instructions on ZFS install.
What is the difference between conf. But, bliss-boot is looking for a config. I used. I had to edit the boot command at launch by hand to enter the 3. I have the following config. Unfortunately, bliss-boot does not seem to pick it up. Maybe useful to know as well, the boot. Using the config.
My boot. If you spot anything wrong into it, could you please highlight it for me? Thank you. Use Daniels boot-update and be happy. I've tried several times to get a clean boot with bliss-boot - never had succes so my advice is to do it "simpler". You need to be a member in order to leave a comment. Sign up for a new account in our community.
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ZFS failed can't import pool
You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser. M4dMike Member. Oct 10, 8 0 6 28 Vienna, Austria. Hey guys! Did an update last night: Code:. Nemesiz Active Member. Jan 16, 45 28 Lithuania.
Cup 'O Joe Member. Oct 22, 11 0 6 Same here, I have two servers that have the same issue. On one of them when I went to manually import the rpool it notified me that I needed to upgrade the pool - being an idiot, I did zpool upgrade rpool. So after importing the pool manually and continuing the boot process, the boot hangs see screenshot.
After looking through some other threads, I tried booting off an old kernel - which worked actually except that the old kernel of course doesn't support the newer pool version I went to the other server that I had not done anything to yet but which has the same issue booted off the previous kernel until the system reached the BusyBox, manually imported the rpool, resumed the boot process, and then logged in.
I ran the following: apt-get update apt-get upgrade apt-get dist-upgrade None of which returned anything new, as a dist-upgrade is what caused the break to begin with. Following that, I also ran: initramfs-update -u Which operated without errors against the new kernel 4. I rebooted with the new kernel and the problem was still there. Help is greatly appreciated, and Mike at least now you know you aren't the only one having this issue.
It only takes a minute to sign up. Sorry for asking an Ubuntu concerning question, but I hope that someone here has some experience with that.Proxmox VE ZFS Docker Boot Issue How to Fix
I have to mount the zfs pool I created with freenas8 on Ubuntu. I tried it as described here. If you run the command sudo zfs get all it should list all the properties of you current zfs pools and file systems.
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Zfs will mount the pool automatically, unless you are using legacy mounts, mountpoint tells zfs where the pool should be mounted in your system by default. If not set you can do so with. After that is done and since root owns the mount point you can change the owner of the mount with. That will make the user user and the group user own the mount point and everything inside it, adjust the command to assign correct user:group privileges to the mount point.
Ubuntu Community Ask! Sign up to join this community. The best answers are voted up and rise to the top. How do I mount a ZFS pool? Ask Question. Asked 8 years, 5 months ago. Active 10 months ago. Viewed k times. The pool can still be used, but some features are unavailable. Once this is done, the pool will no longer be accessible on older software versions. Testerrrr Testerrrr 1 1 gold badge 4 4 silver badges 5 5 bronze badges. Active Oldest Votes.
Bruno Pereira Bruno Pereira Just to add, there is another property for datasets canmount which can either be on off noauto off and noauto prevent auto-mounting as well for individual datasets. For more info use man zfs.
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