I can confirm same issue here after upgrade or 14.04 to 16.04. Note that on my system, / is not on LVM.
lvm is not initiated at boot time nor at init time and the system gave up mounting /usr (/ is not on LVM on my system). For me, this is even worst, even when / is mounted and we are supposed to be in a sort of "userland", LVM is not up. I had to mount -- bind proc, run, sys and dev to /root/ Then lvm vgchange -ay then mount -a [This is required to run update-iniramfs as this script is in /usr and requires /var] Then mount -o remount rw / Then create a lvm2 script in local-top as described earlier [THANK YOU!] Then update initramfs with update-initramfs -k all -u Then sync and umount exit the chroot reboot This is not an obvious process to follow, especially ending up with an undocumented script in local-top :). Good luck all! -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to lvm2 in Ubuntu. https://bugs.launchpad.net/bugs/1573982 Title: LVM boot problem - volumes not activated after upgrade to Xenial Status in lvm2 package in Ubuntu: Confirmed Bug description: Soon after upgrade to Xenial (from 15.10) the boot process got broken. I'm using LVM for /root swap and other partitions. === The current behaviour is: When I boot short after the Grub login screen I'm getting log messages like: --- Scanning for Btrfs filesystems resume: Could not state the resume device file: '/dev/mapper/VolGroup....' Please type in the full path... --- Then I press ENTER, for a few minutes some errors about floppy device access are raised (for some reason it tries to scan fd0 when floppy drive is empty). And then: --- Gave up waiting for root device. Common problems: ... ... ALERT! UUID=xxx-xxx.... does not exist. Dropping to a shell. --- From the BusyBox shell I managed to recover the boot by issuing "lvm vgchange -ay", then exit and then boot continues fine (all LVM file systems are successfully mounted). === One workaround so far is creating /etc/initramfs-tools/scripts/local-top/lvm2-manual script doing "lvm vgchange -ay". But I'm looking for cleaner solution. Boot used to work fine with 15.10. Actually the first boot after upgrading to Xenial actually worked OK too, I'm not sure what might changed meanwhile (I've been fixing some packages installation since mysql server upgrade has failed). === # lsb_release -rd Description: Ubuntu 16.04 LTS Release: 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lvm2/+bug/1573982/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
