[PSA] `cros_sdk` failing with modprobe/thin target errors

[Mike Frysinger]

seems like gLinux users are randomly seeing errors like:

$ cros_sdk

15:01:05: WARNING: Failed to activate VG on try 1.

15:01:06: WARNING: Failed to activate VG on try 2.

15:01:06: WARNING: Failed to activate VG on try 3.

cros_sdk: Unhandled exception:

Traceback (most recent call last):

...

chromite.lib.cros_build_lib.RunCommandError: return code: 5; command: vgchange -q -ay cros_usr+local+google+home+ahassani+chromiumos+chroot_000

modprobe: ERROR: could not insert 'dm_thin_pool': Invalid argument

  /sbin/modprobe failed: 1

  Can't process LV cros_usr+local+google+home+ahassani+chromiumos+chroot_000/thinpool: thin-pool target support missing from kernel?

  Can't process LV cros_usr+local+google+home+ahassani+chromiumos+chroot_000/chroot: thin target support missing from kernel?

  0 logical volume(s) in volume group "cros_usr+local+google+home+ahassani+chromiumos+chroot_000" now active

cmd=['vgchange', '-q', '-ay', 'cros_usr+local+google+home+ahassani+chromiumos+chroot_000']

if you see this, you should try running:

  sudo glinux-updater

then reboot your system :).

for more details, check out https://crbug.com/818865.  basically it looks like an automatic gLinux update broke the kernel/module install.

-mike