Hi Philip, The system would not boot with any kernels with the message gave up waiting for root device /dev/mapper/sysvg-lvroot1
>From the initramfs prompt there was no mapper listed under /dev but I could mount /dev/sysvg/lvroot1 in /root. However exiting the shell gave a kernel panic. But I am not sure if I was supposed to bind dev, dev/pts, sys and or proc before. The problem is I don't have a copy of the original grub.cfg (I did not think of doing that) since I have cleaned up the system by merging root with a lvm snapshot and force reinstalled the previous kernel which caused grub.cfg to be overwritten. However grub.cfg is the only file that can have caused the problem as it is the only difference under /boot (the only place used before mounting the root device) except for the newer kernel (but I could not boot any of the previous kernels so the newer kernel should not have been the problem). Unfortunately I cannot break my system again at the moment so I cannot test it. If the proposed updates get accepted, my system might break again. I will try and provide more info (grub.cfg) if this happens. Thank you, On Mon, Feb 16, 2015 at 2:34 PM, Phillip Susi <ps...@ubuntu.com> wrote: > What do you mean you could not find the /dev/mapper entry? > /dev/sysvg/lvroot1 should just be a symlink to /dev/mapper/sysvg- > lvroot1. If you mount it in /root and exit from the shell does the > system boot up normally? If you suspect something changed in grub.cfg ( > and I don't see any reason to think that ), it would be helpful to > attach a copy for analysis. > > > ** Changed in: grub2 (Ubuntu) > Status: New => Incomplete > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1421877 > > Title: > boot fails with lvm root device in /dev/mapper not found after updates > from proposed > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1421877/+subscriptions > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1421877 Title: boot fails with lvm root device in /dev/mapper not found after updates from proposed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1421877/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
