Public bug reported:
I observed after a lot of updates my kernel did not get update after
reboot. I found my /boot zfs pool not mounted properly and re-imported
it, but when I generate new grub.cfg, the 10_linux_zfs section is empty,
even with /boot mounted properlly:
root@manauara:~# zpool list
NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH
ALTROOT
bpool 1,88G 196M 1,68G - - 0% 10% 1.00x ONLINE -
rpool 114G 43,8G 70,2G - - 46% 38% 1.00x ONLINE -
root@manauara:~# mount | grep boot
bpool/BOOT/ubuntu_bpn5ci on /boot type zfs (rw,nodev,relatime,xattr,posixacl)
/dev/sdb1 on /boot/efi type vfat
(rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/sdb1 on /boot/grub type vfat
(rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
root@manauara:~# cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# /boot/efi was on /dev/sdb1 during installation
UUID=3663-2075 /boot/efi vfat umask=0022,fmask=0022,dmask=0022 0
1
/boot/efi/grub /boot/grub none defaults,bind 0 0
UUID=9b5b207e-da46-4b16-b827-d8521151c8bf none swap discard 0 0
root@manauara:~# cat /etc/zfs/zfs-list.cache/bpool
bpool /boot off on on off on off on off
- none
bpool/BOOT none off on on off on off on
off - none
bpool/BOOT/ubuntu_bpn5ci /boot on on on off on
off on off - none
I have cleaned all snapshots because another issue with zsys and images,
so my snapshot tree is almost clean:
root@manauara:~# zfs list -t snapshot
NAME USED AVAIL
REFER MOUNTPOINT
bpool/BOOT/ubuntu_bpn5ci@autozsys_n55ov3 90,6M -
104M -
rpool/ROOT/ubuntu_bpn5ci@autozsys_n55ov3 43,5M -
6,22G -
rpool/ROOT/ubuntu_bpn5ci/srv@autozsys_n55ov3 0B -
96K -
rpool/ROOT/ubuntu_bpn5ci/usr@autozsys_n55ov3 0B -
96K -
rpool/ROOT/ubuntu_bpn5ci/usr/local@autozsys_n55ov3 0B -
2,94M -
rpool/ROOT/ubuntu_bpn5ci/var@autozsys_n55ov3 0B -
96K -
rpool/ROOT/ubuntu_bpn5ci/var/games@autozsys_n55ov3 0B -
96K -
rpool/ROOT/ubuntu_bpn5ci/var/lib@autozsys_n55ov3 464K -
7,93G -
rpool/ROOT/ubuntu_bpn5ci/var/lib/AccountsService@autozsys_n55ov3 0B -
336K -
rpool/ROOT/ubuntu_bpn5ci/var/lib/NetworkManager@autozsys_n55ov3 116K -
168K -
rpool/ROOT/ubuntu_bpn5ci/var/lib/apt@autozsys_n55ov3 136K -
95,7M -
rpool/ROOT/ubuntu_bpn5ci/var/lib/dpkg@autozsys_n55ov3 2,32M -
55,2M -
rpool/ROOT/ubuntu_bpn5ci/var/log@autozsys_n55ov3 7,54M -
1,13G -
rpool/ROOT/ubuntu_bpn5ci/var/mail@autozsys_n55ov3 0B -
96K -
rpool/ROOT/ubuntu_bpn5ci/var/snap@autozsys_n55ov3 0B -
2,17M -
rpool/ROOT/ubuntu_bpn5ci/var/spool@autozsys_n55ov3 56K -
208K -
rpool/ROOT/ubuntu_bpn5ci/var/www@autozsys_n55ov3 0B -
96K -
rpool/USERDATA/leonardo_xoeglb@autozsys_n55ov3 16,8M -
27,0G -
rpool/USERDATA/leonardo_xoeglb@autozsys_qc46s7 7,86M -
27,0G -
rpool/USERDATA/root_xoeglb@autozsys_n55ov3 132K -
1,17G -
The output of upgrade-grub (With sh -x in 10_linux_zen) is attached and other
system information is at ubuntu-bug report attached.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: grub2-common 2.04-1ubuntu26
ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44
Uname: Linux 5.4.0-40-generic x86_64
NonfreeKernelModules: nvidia_modeset zfs zunicode zavl icp zcommon znvpair
nvidia
ApportVersion: 2.20.11-0ubuntu27.3
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sat Jul 11 20:24:10 2020
InstallationDate: Installed on 2020-04-27 (75 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
SourcePackage: grub2
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: grub2 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal
** Attachment added: "Output of update-grub while 10_linux_zfs contains sh -x
in first line"
https://bugs.launchpad.net/bugs/1887257/+attachment/5391804/+files/update-grub.err
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https://bugs.launchpad.net/bugs/1887257
Title:
update-grub does not create any entry on grub.cfg for ZFS on root
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