Also to note, not all the datasets I created in rpool/USERDATA were
destroyed:

oot@mesozoic:/# zfs list | grep USERDATA
rpool/USERDATA                                                                  
                                338G  1.41T       96K  /
rpool/USERDATA/atm26_tavly8                                                     
                               32.6G  1.41T     29.9G  /home/atm26
rpool/USERDATA/root_tavly8                                                      
                                920K  1.41T      592K  /root
rpool/USERDATA/ssd250                                                           
                                305G  1.41T       88K  /local/ssd250
rpool/USERDATA/ssd250/build                                                     
                               55.3G  1.41T      112K  /local/ssd250/build
rpool/USERDATA/ssd250/build/lineageos                                           
                               53.1G  1.41T     52.9G  
/local/ssd250/build/lineageos
rpool/USERDATA/ssd250/build/riscos                                              
                               2.17G  1.41T     2.17G  
/local/ssd250/build/riscos
rpool/USERDATA/ssd250/docker                                                    
                                746M  1.41T      746M  /local/ssd250/docker
rpool/USERDATA/ssd250/dvd                                                       
                                458M  1.41T      458M  /local/ssd250/dvd
rpool/USERDATA/ssd250/vm                                                        
                                249G  1.41T       88K  /local/ssd250/vm
rpool/USERDATA/ssd250/vm/ecadlabs                                               
                                152K  1.41T       88K  /local/ssd250/vm/ecadlabs
rpool/USERDATA/ssd250/vm/jenkins                                                
                                240G  1.41T      240G  /local/ssd250/vm/jenkins
rpool/USERDATA/ssd250/vm/uvtool                                                 
                               8.74G  1.41T     8.74G  
/local/ssd250new/vm/uvtool

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to zfs-linux in Ubuntu.
https://bugs.launchpad.net/bugs/1883887

Title:
  Focal installer destroyed my datasets

Status in zfs-linux package in Ubuntu:
  New

Bug description:
  I installed focal about a month about, using the desktop installer
  with the 'experimental' ZFS root option.  I've been running ZFS on
  FreeBSD for about 10 years and figured I could handle any sharp edges.
  It's installed to a single 2TB SSD - no RAID, no L2ARC/ZIL, no dedup,
  nothing complicated.  Machine is an Intel S2600CP2, 2x E5-2670 v1,
  128GiB RAM.

  The machine stayed up for a few weeks, until I had cause to physically
  move it and so shut it down.  It turned out GRUB had installed onto
  the wrong disk which I'd removed in the intervening time.  It wouldn't
  boot, so I booted the focal desktop installer from a USB stick to give
  me a shell to fix things.  I didn't run the actual installer, I just
  booted to the installer desktop and then did Ctrl-Alt-F1, apt install
  openssh-server, and then logged in via SSH.

  Then I followed some instructions about mounting the pool in a chroot (Step 
3):
  
https://askubuntu.com/questions/826209/re-initialise-grub-for-non-bootable-uefi-zfs-16-04-installation
  This took a couple of goes to get right as the first time I tried to mount on 
top of the installer (without zpool import -R) and many filesystems couldn't 
replace preexisting mounts, so I exported and re-imported.  Anyway, I succeeded 
in mounting, and then doing update-grub.  However, looking at the zpool history 
-il log while I was in the installer I see:
  (full zpool history -il log attached)

  2020-06-16.14:56:34 [txg:889337] open pool version 5000; software version 
unknown; uts ubuntu 5.4.0-26-generic #30-Ubuntu SMP Mon Apr 20 16:58:30 UTC 
2020 x86_64 [on ubuntu]
  2020-06-16.14:56:34 [txg:889339] import pool version 5000; software version 
unknown; uts ubuntu 5.4.0-26-generic #30-Ubuntu SMP Mon Apr 20 16:58:30 UTC 
2020 x86_64 [on ubuntu]
  2020-06-16.14:58:20 zpool export rpool bpool [user 0 (root) on ubuntu:linux]
  2020-06-16.14:59:16 [txg:889372] open pool version 5000; software version 
unknown; uts ubuntu 5.4.0-26-generic #30-Ubuntu SMP Mon Apr 20 16:58:30 UTC 
2020 x86_64 [on ubuntu]
  2020-06-16.14:59:16 [txg:889374] import pool version 5000; software version 
unknown; uts ubuntu 5.4.0-26-generic #30-Ubuntu SMP Mon Apr 20 16:58:30 UTC 
2020 x86_64 [on ubuntu]
  2020-06-16.15:01:32 [txg:889402] destroy 
rpool/ROOT/ubuntu_rjlt3b/var/log@autozsys_1gwqtf (19222)  [on ubuntu]
  2020-06-16.15:01:32 ioctl destroy_snaps
      input:
          snaps:
              rpool/ROOT/ubuntu_rjlt3b/var/log@autozsys_1gwqtf
   [user 0 (root) on ubuntu:linux]

  ...lots of snapshots are deleted...

  2020-06-16.15:05:55 [txg:889577] destroy 
rpool/USERDATA/root_tavly8@autozsys_1gwqtf (19722)  [on ubuntu]
  2020-06-16.15:06:00 ioctl destroy_snaps
      input:
          snaps:
              rpool/USERDATA/root_tavly8@autozsys_1gwqtf
  2020-06-16.15:06:45 [txg:889588] destroy rpool/USERDATA/local/vm/freebsd-12.1 
(3398)  [on ubuntu]
  2020-06-16.15:06:45 [txg:889590] destroy rpool/USERDATA/local/vm (735)  [on 
ubuntu]
  2020-06-16.15:06:46 [txg:889592] destroy rpool/USERDATA/local/ecad/altera 
(551)  [on ubuntu]
  2020-06-16.15:06:46 [txg:889594] destroy rpool/USERDATA/local/ecad/xilinx 
(3476)  [on ubuntu]
  2020-06-16.15:06:47 [txg:889596] destroy rpool/USERDATA/local/ecad (127)  [on 
ubuntu]
  2020-06-16.15:06:48 [txg:889598] destroy rpool/USERDATA/local/scratch/atm26 
(2058)  [on ubuntu]
  2020-06-16.15:06:48 [txg:889600] destroy rpool/USERDATA/local/scratch (2447)  
[on ubuntu]
  2020-06-16.15:06:49 [txg:889602] destroy rpool/USERDATA/local (1671)  [on 
ubuntu]
  2020-06-16.15:07:20 [txg:889668] destroy rpool/USERDATA/opt_tavly8/riscv 
(1878)  [on ubuntu]
  2020-06-16.15:07:21 [txg:889670] destroy rpool/USERDATA/opt_tavly8/brave.com 
(1864)  [on ubuntu]
  2020-06-16.15:07:23 [txg:889672] destroy rpool/USERDATA/opt_tavly8/riscv-llvm 
(4788)  [on ubuntu]
  2020-06-16.15:07:24 [txg:889674] destroy 
rpool/USERDATA/opt_tavly8/riscv-freebsd (5147)  [on ubuntu]
  2020-06-16.15:07:25 [txg:889676] destroy rpool/USERDATA/opt_tavly8 (3313)  
[on ubuntu]

  Here something that wasn't the command line - and so I assume is zsys
  - deleted all the datasets I made in rpool/USERDATA.  This was about
  1TiB of data.

  Needless to say, nothing should be destroying user datasets.


  root@mesozoic:/# lsb_release -rd
  Description:    Ubuntu 20.04 LTS
  Release:        20.04
  root@mesozoic:/# apt-cache policy zsys
  zsys:
    Installed: 0.4.5
    Candidate: 0.4.5
    Version table:
   *** 0.4.5 500
          500 http://ubuntu.mirrors.uk2.net/ubuntu focal/main amd64 Packages
          100 /var/lib/dpkg/status
  root@mesozoic:/# dpkg --list | grep zfs
  ii  libzfs2linux                                  0.8.3-1ubuntu12             
                amd64        OpenZFS filesystem library for Linux
  ii  zfs-initramfs                                 0.8.3-1ubuntu12             
                amd64        OpenZFS root filesystem capabilities for Linux - 
initramfs
  ii  zfs-zed                                       0.8.3-1ubuntu12             
                amd64        OpenZFS Event Daemon
  ii  zfsutils-linux                                0.8.3-1ubuntu12             
                amd64        command-line tools to manage OpenZFS filesystems

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1883887/+subscriptions

-- 
Mailing list: https://launchpad.net/~kernel-packages
Post to     : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help   : https://help.launchpad.net/ListHelp

Reply via email to