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[Launchpad Bug Tracker <1007677@xxxxxxxxxxxxxxxxxx>]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: util-linux (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1007677

Title:
  overlayfs: on-boot, mount device issue.

Status in util-linux package in Ubuntu:
  Confirmed

Bug description:
  Hello example fstab entries I've tested,

  overlayfs /usr overlayfs defaults,lowerdir=/.usr-ro/local/..,upperdir=/.usr-rw/lost+found/.. 0 2
  none /usr overlayfs defaults,lowerdir=/.usr-ro/local/..,upperdir=/.usr-rw/lost+found/.. 0 2

  On boot I get an error about the device overlayfs/none, so I'm
  prompted to enter maintenance mode.  I issue a "mount -a; exit;" and
  all is well the boot success.

  I'm sick of doing this.

  Here is a small script I wrote to resquash /usr, it's incomplete as
  I'm not sure how to size the lv.

  #!/bin/sh
  mksquashfs /usr /root/usr.sqfs -comp lzo -no-exports -always-use-fragments -wildcards -e local/*&
  kpid=$!

  (
  #unsquashfs -s usr.sqfs
  #lvcreate -L 5G Arcadia -n nuusr$$.ro
  cryptsetup -q luksFormat /dev/Arcadia/nuusr$$.ro /etc/keys/key.txt
  newo=$(cryptsetup luksUUID /dev/Arcadia/nuusr$$.ro)
  cryptsetup luksOpen /dev/Arcadia/nuusr$$.ro $newo --key-file /etc/keys/key.txt
  wait $kpid
  { dd if=/root/usr.sqfs bs=4k; cat /dev/urandom; } | dd bs=4M of=/dev/mapper/$newo
  cryptsetup luksClose $newo
  ) &
  opid=$!

  lvcreate -L 8G Arcadia -n nuusr$$.rw
  cryptsetup -q luksFormat /dev/Arcadia/nuusr$$.rw /etc/keys/key.txt
  neww=$(cryptsetup luksUUID /dev/Arcadia/nuusr$$.rw)
  cryptsetup luksOpen /dev/Arcadia/nuusr$$.rw $neww --key-file /etc/keys/key.txt
  mkfs.ext4 /dev/mapper/$neww
  tune2fs -e remount-ro -o journal_data_writeback,discard /dev/mapper/$neww
  cryptsetup luksClose $neww

  wait $opid
  newo=$(cryptsetup luksUUID /dev/Arcadia/nuusr$$.ro)
  oldo=$(grep fsUsr.ro /etc/crypttab | grep -o ........-....-....-....-............)
  oldw=$(grep fsUsr.rw /etc/crypttab | grep -o ........-....-....-....-............)
  sed -i -e "s/$oldo/$newo/" -e "s/$oldw/$neww/" /etc/crypttab

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: mount 2.20.1-1ubuntu3 [modified: bin/findmnt bin/mount bin/umount sbin/losetup sbin/swapon]
  ProcVersionSignature: Ubuntu 3.2.0-23.31-lowlatency-pae 3.2.14
  Uname: Linux 3.2.0-23-lowlatency-pae i686
  ApportVersion: 2.0.1-0ubuntu5
  Architecture: i386
  Date: Fri Jun  1 19:28:18 2012
  SourcePackage: util-linux
  UpgradeStatus: Upgraded to precise on 2012-01-03 (150 days ago)

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