Public bug reported:
I‘ve updated my home-made NAS from wily to xenial and it stopped
booting.
Selecting the 4.2 kernel on the grub menu makes it work again.
The working kernel is 4.2.0-35-generic
The failing kernel is 4.4.0-21-generic.
When the booting sequence freezes, I can have a terminal with the
following text :
lvmetad is not active yet, using direct activation during sysinit
Scannig for Btrfs flesystems
_
Actually my set-up is lvm based, and the correponding lines of the
output of a mount command are
/dev/mapper/clio-root on / type btrfs
(rw,relatime,nospace_cache,subvolid=256,subvol=/@)
/dev/mapper/clio-root on /mnt/clio-root type btrfs
(rw,relatime,nospace_cache,subvolid=5,subvol=/)
/dev/mapper/clio-root on /home type btrfs
(rw,relatime,nospace_cache,subvolid=257,subvol=/@home)
** Affects: lvm2 (Ubuntu)
Importance: Undecided
Status: New
** Tags: kernel
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https://bugs.launchpad.net/bugs/1574333
Title:
LVM-based server does not boot with kernel 4.4 (but works with 4.2)
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