** Changed in: lvm2 (Ubuntu Focal)
Assignee: Mauricio Faria de Oliveira (mfo) => (unassigned)
** Tags removed: sts-sponsor-mfo
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https://bugs.launchpad.net/bugs/1834250
Title:
update-grub complains about non-existent drives (due to cardreader)
Status in lvm2 package in Ubuntu:
Fix Released
Status in lvm2 source package in Focal:
Fix Committed
Bug description:
[Impact]
* `update-grub` (actually `vgs`) complains about
'No medium found' on systems with card readers
that have no card in.
* This may confuse users who aren't sure whether
it means problems occurred with the bootloader,
and concern their ability to safely boot again.
* The workaround is to add a filter to LVM config,
but this might be hard to find and error prone.
(And not even seem relate to `update-grub` at
all, specially on non-LVM storage layouts.)
[See comment #16]
* The fix replaces calls to `dev_open_readonly()`
with `dev_open_readonly_quiet()` in scan path,
where such errors are not a problem.
[Test Plan]
* Run `vgs` on a system with a card reader
and check for 'No medium found' messages.
* Run `strace -f -e openat vgs` to confirm
system calls/error codes have no changes.
* [See comment #20]
[Where problems could occur]
* The patch changes syscall error reporting on the
'scan' path, so problems could occur when listing
LVM resources in block devices (e.g., list volume
groups with `vgs`).
* There's little to no changes upstream on this area,
and the change is present in Jammy; both help with
a lower chance of regression.
[Other Info]
* `block-proposed-focal`: The upload is being staged
as it's just a cosmetic change, but affects `lvm2`,
which is present in so many systems, triggering a
lot of upgrades/boot risk (in case something else
broke and this upgrade could reveal it indirectly).
* So, it will probably only be released once a more
serious issue has to be fixed in `lvm2`.
* Scope: Jammy has the fix, and Impish will EOL soon.
[Original Bug Description]
sudo update-grub
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
/dev/sdc: open failed: No medium found
/dev/sdd: open failed: No medium found
/dev/sde: open failed: No medium found
/dev/sdf: open failed: No medium found
/dev/sdc: open failed: No medium found
/dev/sdd: open failed: No medium found
/dev/sde: open failed: No medium found
/dev/sdf: open failed: No medium found
/dev/sdc: open failed: No medium found
/dev/sdd: open failed: No medium found
/dev/sde: open failed: No medium found
/dev/sdf: open failed: No medium found
/dev/sdc: open failed: No medium found
/dev/sdd: open failed: No medium found
/dev/sde: open failed: No medium found
/dev/sdf: open failed: No medium found
/dev/sdc: open failed: No medium found
/dev/sdd: open failed: No medium found
/dev/sde: open failed: No medium found
/dev/sdf: open failed: No medium found
/dev/sdc: open failed: No medium found
/dev/sdd: open failed: No medium found
/dev/sde: open failed: No medium found
/dev/sdf: open failed: No medium found
/dev/sdc: open failed: No medium found
/dev/sdd: open failed: No medium found
/dev/sde: open failed: No medium found
/dev/sdf: open failed: No medium found
/dev/sdc: open failed: No medium found
/dev/sdd: open failed: No medium found
/dev/sde: open failed: No medium found
/dev/sdf: open failed: No medium found
/dev/sdc: open failed: No medium found
/dev/sdd: open failed: No medium found
/dev/sde: open failed: No medium found
/dev/sdf: open failed: No medium found
/dev/sdc: open failed: No medium found
/dev/sdd: open failed: No medium found
/dev/sde: open failed: No medium found
/dev/sdf: open failed: No medium found
Found linux image: /boot/vmlinuz-5.0.0-17-generic
Found initrd image: /boot/initrd.img-5.0.0-17-generic
Found linux image: /boot/vmlinuz-5.0.0-16-generic
Found initrd image: /boot/initrd.img-5.0.0-16-generic
/dev/sdc: open failed: No medium found
/dev/sdd: open failed: No medium found
/dev/sde: open failed: No medium found
/dev/sdf: open failed: No medium found
/dev/sdc: open failed: No medium found
/dev/sdd: open failed: No medium found
/dev/sde: open failed: No medium found
/dev/sdf: open failed: No medium found
/dev/sdc: open failed: No medium found
/dev/sdd: open failed: No medium found
/dev/sde: open failed: No medium found
/dev/sdf: open failed: No medium found
Adding boot menu entry for EFI firmware configuration
done
--
lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 3.7T 0 disk
├─sda1 8:1 0 512M 0 part /boot/efi
├─sda2 8:2 0 732M 0 part /boot
└─sda3 8:3 0 3.7T 0 part
└─sda3_crypt 253:0 0 3.7T 0 crypt
├─kubuntu--vg-swap_1 253:1 0 976M 0 lvm [SWAP]
└─kubuntu--vg-root 253:2 0 3.7T 0 lvm /
sdb 8:16 0 3.7T 0 disk
└─sdb1 8:17 0 3.7T 0 part
sdg 8:96 0 7.3T 0 disk
└─sdg1 8:97 0 7.3T 0 part /media/scott/8TB Ext Drive
sr0 11:0 1 15.7G 0 rom
--
cat /etc/default/grub
GRUB_DEFAULT=0
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="intel_iommu=on"
GRUB_CMDLINE_LINUX=""
ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: grub2-common 2.02+dfsg1-12ubuntu3
ProcVersionSignature: Ubuntu 5.0.0-17.18-generic 5.0.8
Uname: Linux 5.0.0-17-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu3
Architecture: amd64
CurrentDesktop: KDE
Date: Tue Jun 25 15:05:29 2019
InstallationDate: Installed on 2019-06-14 (10 days ago)
InstallationMedia: Kubuntu 19.10 "Eoan Ermine" - Alpha amd64 (20190614)
SourcePackage: grub2
UpgradeStatus: No upgrade log present (probably fresh install)
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