Reported upstream to BTRFS developers:
https://bugzilla.kernel.org/show_bug.cgi?id=89121
** Bug watch added: Linux Kernel Bug Tracker #89121
http://bugzilla.kernel.org/show_bug.cgi?id=89121
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** Changed in: linux (Ubuntu)
Status: Confirmed => Triaged
** Changed in: grub2 (Ubuntu)
Status: New => Invalid
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
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I've built a system to reproduce the bug. You can download the image and
run it with KVM or other virtualization technology. Instructions are
straightforward – if you start the VM, you'll know what to do, and
you'll see what I was talking about.
http://undead.megabrutal.com/kvm-reproduce-1391429.i
I've tested with 3.18.0-031800rc5-generic amd64. I experience the same.
** Tags added: kernel-bug-exists-upstream
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https://bugs.launchpad.net/bugs/1391429
Title:
grub-probe takes snaps
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.18 kernel[0].
If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.
If the mainline kernel does not fix t
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1391429
Title:
grub-probe takes snapshot LV instead of origin
To manage notificati
If /proc/mounts lists the wrong device, then that certainly is a kernel
bug.
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
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The kernel is not being rebooted meanwhile, so /proc/cmdline, so it still
states the original device as root.
For example:
root=/dev/vg/rootlv rootflags=subvol=@ ro
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So /proc/mounts lists the snapshot as the root... what does
/proc/cmdline say?
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Title:
grub-probe takes snapshot LV instead of origin
To manage
I made some experiments and could only reproduce the problem with btrfs file
system.
And /proc/mounts says the root file system is the snapshot. This is rather
strange.
Probably it's a btrfs bug and nothing to do with grub-probe.
To reproduce:
1. Create an LV, format it to btrfs.
2. Mount the LV
Grub does ignore snapshots... what does cat /proc/mounts say?
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Title:
grub-probe takes snapshot LV instead of origin
To manage notifications abo
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