[Bug 1017678] Re: Duplicate entries in grub2 menu for second ubuntu installed on another partition
Confirming the behaviour stated by axeoth on 2012-09-26. For some reasons, existing grub.cfg files on other partitions seem to completely fool the update-grub scripts on other partitions (more precise, the linux-boot-order script). The problem still exists with Xenial Mate uname -a: Linux x12 4.4.0-47-generic #68-Ubuntu SMP Wed Oct 26 19:39:52 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux Even confirmed, that os-prober gets fooled by a grub.cfg file on a non- system partition that contains a partial backup of a system partition (here: complete directory /boot)! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1017678 Title: Duplicate entries in grub2 menu for second ubuntu installed on another partition To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1017678/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1017678] Re: Duplicate entries in grub2 menu for second ubuntu installed on another partition
I strongly believe that the root cause is in the linux-boot-prober as it
returns a strange result when launched (from my Xubuntu Precise) against
a Xubuntu Quantal partition:
(verbatim copy)
$ sudo linux-boot-prober /dev/sda7 2 /dev/null
/dev/sda7:/dev/sda7:Ubuntu' --class ubuntu --class gnu-linux --class gnu
--class os $menuentry_id_option
'gnulinux-simple-7205122a-da09-4f1f-97ef-67d3f70df317:/boot/vmlinuz-3.5.0-15-generic:/boot/initrd.img-3.5.0-15-generic:root=UUID=7205122a-da09-4f1f-97ef-67d3f70df317
ro quiet splash $vt_handoff
/dev/sda7:/dev/sda7:Ubuntu, with Linux 3.5.0-15-generic' --class ubuntu --class
gnu-linux --class gnu --class os $menuentry_id_option
'gnulinux-3.5.0-15-generic-advanced-7205122a-da09-4f1f-97ef-67d3f70df317:/boot/vmlinuz-3.5.0-15-generic:/boot/initrd.img-3.5.0-15-generic:root=UUID=7205122a-da09-4f1f-97ef-67d3f70df317
ro quiet splash $vt_handoff
(/verbatim copy)
More, this strange result also likely causes the following code in
30_os-prober to misbehave (returning two entries with strange names)
LINUXPROBED=`linux-boot-prober ${DEVICE} 2 /dev/null | tr ' ' '^' |
paste -s -d ' '`
prepare_boot_cache=
for LINUX in ${LINUXPROBED} ; do
(etc)
done
I hope this helps
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Duplicate entries in grub2 menu for second ubuntu installed on another
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[Bug 1017678] Re: Duplicate entries in grub2 menu for second ubuntu installed on another partition
Sorry, I have to step back. In my particular case, the problem was that I also have launched sudo update-grub on my Quantal installation. And this created a /boot/grub/grub.cfg file on my Quantal partition. For some reasons, existing grub.cfg files on other partitions seem to completely fool the update-grub scripts on other partitions (more precise, the linux-boot-order script). In my case, the problem was solved by removing the grub.cfg file on the Quantal partition (I still launch update-grub on my Precise partition). I find abnormally that the mere existence of grub.cfg files on other partitions completely fool the update-grub scripts (actually, the linux- boot-prober scripts) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1017678 Title: Duplicate entries in grub2 menu for second ubuntu installed on another partition To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1017678/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1017678] Re: Duplicate entries in grub2 menu for second ubuntu installed on another partition
Ha =) sort | uniq made me smile this morning =) one would think you can boot without that =) I will check ubiquity code, but I don't think we run `update-grub` in a normal way, due to having a weird environment (root from the squashfs on the cd, instead of the target one). I think we only use 90fallback directly. ** Also affects: ubiquity (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1017678 Title: Duplicate entries in grub2 menu for second ubuntu installed on another partition To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1017678/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1017678] Re: Duplicate entries in grub2 menu for second ubuntu installed on another partition
** Tags added: quantal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1017678 Title: Duplicate entries in grub2 menu for second ubuntu installed on another partition To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1017678/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1017678] Re: Duplicate entries in grub2 menu for second ubuntu installed on another partition
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: ubiquity (Ubuntu) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1017678 Title: Duplicate entries in grub2 menu for second ubuntu installed on another partition To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1017678/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1017678] Re: Duplicate entries in grub2 menu for second ubuntu installed on another partition
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: os-prober (Ubuntu) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1017678 Title: Duplicate entries in grub2 menu for second ubuntu installed on another partition To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1017678/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1017678] Re: Duplicate entries in grub2 menu for second ubuntu installed on another partition
With the update to 3.5.0-2-generic in quantal, /boot/grub/grub.cfg was generated. When running update-grub from the precise partition, the grub2 menu is now correct without duplicates (plus additional recovery mode entries). So I guess this is only an issue after an initial install using: ubiquity -b; to skip installing the boot loader. Once grub.cfg is generated, os-prober doesn't have to guess with 90fallback and we don't get duplicates. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1017678 Title: Duplicate entries in grub2 menu for second ubuntu installed on another partition To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1017678/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1017678] Re: Duplicate entries in grub2 menu for second ubuntu installed on another partition
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1017678 Title: Duplicate entries in grub2 menu for second ubuntu installed on another partition To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1017678/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1017678] Re: Duplicate entries in grub2 menu for second ubuntu installed on another partition
** Bug watch added: Debian Bug tracker #649217 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=649217 ** Also affects: os-prober (Debian) via http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=649217 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1017678 Title: Duplicate entries in grub2 menu for second ubuntu installed on another partition To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1017678/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1017678] Re: Duplicate entries in grub2 menu for second ubuntu installed on another partition
** Changed in: os-prober (Debian) Status: Unknown = New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1017678 Title: Duplicate entries in grub2 menu for second ubuntu installed on another partition To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/os-prober/+bug/1017678/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
