[Bug 1451265] Re: dirty reboot always results in unbootable system if root is btrfs
The bug came back today with 16.04 (fully updated just yesterday). Kernel always failed with the "unable to mount root" BT on multiple could boot attempts. Again, I needed to boot with a livecd in order to be able to boot my machine again. I only runned btrfs check with no "--repair" and not error was shown. I mounted it, unmounted and rebooted. After that, system booted normally. It seems that btrfs "recovery itself" on boot, with the simple "btrfs check" or with the mount. It seems that btrfs is able to recover but maybe the kernel could not find the FS. My system defines root in kernel cmdline as root=UUID=9051c9b6-070c-443a-8f8f-f7c23c1b01c6. Maybe a dirty btrfs can mess with kernel procedure to list FS by UUID? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1451265 Title: dirty reboot always results in unbootable system if root is btrfs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/btrfs-tools/+bug/1451265/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1451265] Re: dirty reboot always results in unbootable system if root is btrfs
Just wait for Ubuntu 15.10 - there is BtrFS V4.* included - which is a huge improvement over BtrFS V3.* - all stuff should work a bit smoother.. Btw I dont have to boot from a Live CD, all tools are available in the busybox already - where you get after entering the crypt password, if the partition doesnt boot. In the meantime: The check --repair works every time for me that it happpens. It happend 3 times, my system hangs when some VMs make problems and only this helped back then because they deactivated the Magic SysReq Key Sequence (https://en.wikipedia.org/wiki/Magic_SysRq_key) partially. (REISUB only works partially in Ubuntu, I didnt knew until I read it somewhere..) So, I reactivated the Sequence - now the hangups doesnt make problems anymore as it seems. Maybe thats a compromise until the next Ubuntu release -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1451265 Title: dirty reboot always results in unbootable system if root is btrfs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/btrfs-tools/+bug/1451265/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1451265] Re: dirty reboot always results in unbootable system if root is btrfs
Hi guys, This is confirmed and high. Can someone give some love to it? I still need to boot with livecd everytime there is a power outage or shutdown hanged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1451265 Title: dirty reboot always results in unbootable system if root is btrfs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/btrfs-tools/+bug/1451265/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1451265] Re: dirty reboot always results in unbootable system if root is btrfs
** Changed in: btrfs-tools (Ubuntu) Importance: Undecided = High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1451265 Title: dirty reboot always results in unbootable system if root is btrfs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/btrfs-tools/+bug/1451265/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1451265] Re: dirty reboot always results in unbootable system if root is btrfs
Same here with 15.04, happen regularly has video driver tends to crash (but that's another story) recovery mode does not work, I reboot in 'initramfs mode' by removing the param of the boot line and use btrfs-zero-log to fix it (or btrfs check --repair, but it did not fix the issue once) Sometime for / sometimes for /home Never happened once with 14.04 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1451265 Title: dirty reboot always results in unbootable system if root is btrfs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/btrfs-tools/+bug/1451265/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1451265] Re: dirty reboot always results in unbootable system if root is btrfs
And never in 14.10 (that I used before since it was out) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1451265 Title: dirty reboot always results in unbootable system if root is btrfs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/btrfs-tools/+bug/1451265/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1451265] Re: dirty reboot always results in unbootable system if root is btrfs
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: btrfs-tools (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/1451265 Title: dirty reboot always results in unbootable system if root is btrfs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/btrfs-tools/+bug/1451265/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1451265] Re: dirty reboot always results in unbootable system if root is btrfs
Also I would add, that attempting to mount the file system will hang indefinitely in 15.04. If I take the same file system and mount it in a 14.10 system it mounts and also seems to correct the problem, it will boot and mount again in 15.04. It seems like it is hanging walking the btrfs log tree. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1451265 Title: dirty reboot always results in unbootable system if root is btrfs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/btrfs-tools/+bug/1451265/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1451265] Re: dirty reboot always results in unbootable system if root is btrfs
Yes I just experienced this as well on 15.04 server on a vm. I have a btrfs root fs, did a power off the machine in virtual box and it would not boot after that. I ran btrfs check --repair /dev/sda5 and was able to boot. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1451265 Title: dirty reboot always results in unbootable system if root is btrfs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/btrfs-tools/+bug/1451265/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
