Package: grub-common
Version: 1.97~beta3-1
Severity: normal
Hello and thanks for maintaining GRUB in Debian.
On a recently installed Debian testing box, I had the first Linux kernel
upgrade the other day, due to the testing-security update
(linux-image-2.6.30-2-amd64/2.6.30-8squeeze1).
During the upgrade, upgrade-grub was apparently invoked, as it should.
After the reboot I found two additional spurious entries in the GRUB menu.
By inspecting /boot/grub/grub.cfg , I see that the two entries were
added by 30_os-prober:
### BEGIN /etc/grub.d/30_os-prober ###
menuentry Debian GNU/Linux, Linux 2.6.30-2-amd64 (on /dev/sdc1) {
linux /boot/vmlinuz-2.6.30-2-amd64 root=/dev/md0 ro quiet
initrd /boot/initrd.img-2.6.30-2-amd64
}
menuentry Debian GNU/Linux, Linux 2.6.30-2-amd64 (recovery mode) (on
/dev/sdc1) {
linux /boot/vmlinuz-2.6.30-2-amd64 root=/dev/md0 ro single
initrd /boot/initrd.img-2.6.30-2-amd64
}
### END /etc/grub.d/30_os-prober ###
The problem is that /dev/sdc1 is a partition on an external USB hard drive,
where I complete backup of the system is performed nightly with rsync.
It seems that os-prober inspected this external USB disk (that was not
mounted during the package upgrades) and found the backup of the Linux kernel
image:
# os-prober
/dev/sdc1:Debian GNU/Linux (squeeze/sid):Debian:linux
I seem to remember that grub even complained about not finding /dev/sdc
in the device.map...
Well, IMHO /etc/grub.d/30_os-prober is being overzealous here: it even
wants to create entries for a backup disk...
I don't know if it can become smart enough to distinguish between backup
partitions and other actual OSes.
Anyway, is it possible to disable one device or, at least, to disable
30_os-prober entirely?
I cannot find the Right Way™ to do so.
-- System Information:
Debian Release: squeeze/sid
APT prefers testing
APT policy: (800, 'testing'), (500, 'unstable')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.30-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages grub-common depends on:
ii base-files 5.0.0 Debian base system miscellaneous f
ii libc6 2.10.2-2 GNU C Library: Shared libraries
ii libfreetype6 2.3.11-1 FreeType 2 font engine, shared lib
ii libncurses55.7+20090803-2shared libraries for terminal hand
ii zlib1g 1:1.2.3.3.dfsg-15 compression library - runtime
Versions of packages grub-common recommends:
ii os-prober 1.35 utility to detect other OSes on a
Versions of packages grub-common suggests:
pn multiboot-doc none (no description available)
-- no debconf information
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