Bug#980782: os-prober: linux-boot-prober returning "root=/dev/dm-X" line instead of expected "root=UUID=[UUID128]
Package: os-prober
Version: 1.77
Severity: important
I noticed when running update-grub on Debian stable and testing, that
the resulting grub.cfg has lines as part of menuentres like:
"linux [..] root=/dev/dm-X"
for found linux installations on other block devices - in my case
residing on LVs - ,instead of "root=UUID=[XXX]", which I'd have expected
(and would favour).
This is due to `linux-boot-prober` calling `mapdevfs` defined in
"/usr/share/os-prober/common.sh".
`mapdevfs` does a simple `readlink` on the path given.
The other lines within the menuentry look fine, e.g.:
"set root='lvmid/XXXXXX/YYYYYY'"
or
"search [..] --set=root [UUID]"
GRUB_DISABLE_LINUX_UUID is undefined.
Is this intentional and if so, why?
-- System Information:
Debian Release: bullseye/sid
APT prefers testing
APT policy: (900, 'testing')
Architecture: amd64 (x86_64)
Kernel: Linux 5.10.0-1-amd64 (SMP w/8 CPU threads)
Kernel taint flags: TAINT_USER, TAINT_WARN
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages os-prober depends on:
ii grub-common 2.04-12
ii libc6 2.31-9
os-prober recommends no packages.
os-prober suggests no packages.
-- no debconf information
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