[Bug 1788520] [NEW] multiple boot problems if /usr is on a logical volume

[valerio]

Public bug reported:

xubuntu 18.04.1

After standard installation with LVM, I created further LVs, namely for
/usr, /var, /tmp and /home.

The boot delays about 30 seconds waiting for /usr, this delay is caused by wait-for-root.
Also, the /usr volume can not be defined by its label in fstab, it fails to find it at boot time.

It seems both problem are caused because wait-for-root is called before
the /usr LV is activated, adding "vgchange -a y" in "init" just before
calling mountfs for /usr allows the boot to complete if /usr is defined
by its label, and eliminates the delay if it is pointed by the
/dev/mapper/XXXX device.

** Affects: initramfs-tools (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1788520

Title:
  multiple boot problems if /usr is on a logical volume

Status in initramfs-tools package in Ubuntu:
  New

Bug description:
  xubuntu 18.04.1

  After standard installation with LVM, I created further LVs, namely
  for /usr, /var, /tmp and /home.

  The boot delays about 30 seconds waiting for /usr, this delay is caused by wait-for-root.
  Also, the /usr volume can not be defined by its label in fstab, it fails to find it at boot time.

  It seems both problem are caused because wait-for-root is called
  before the /usr LV is activated, adding "vgchange -a y" in "init" just
  before calling mountfs for /usr allows the boot to complete if /usr is
  defined by its label, and eliminates the delay if it is pointed by the
  /dev/mapper/XXXX device.

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