[Bug 1333773] Re: scanning for btrfs file systems on system startup

[João Manuel Rodrigues]

I have a fresh 14.04 installation.  I did set up a single partition as
btrfs, with 2 subvolumes for / and /home, so removing brtfs-tools is out
of question.

The "Scanning for btrfs file systems" appears early on, but stays there for some 25 seconds until  the boot resumes again.
The system finally boots and works fine afterwards, but the boot is definitely slow.  There must be a bug causing this delay.

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Title:
  scanning for btrfs file systems on system startup

Status in btrfs-tools package in Ubuntu:
  Confirmed

Bug description:
  After upgrading from Ubuntu 12.04 to Ubuntu 14.04, I get a message
  "scanning for btrfs file systems" at starting-up. I don't have any
  BTRFS filesystem. It delays the booting for about 15 seconds.

  
  I tried to :
  1) blacklist the brtfs module in /etc/modprobe.d.
  2) remove btrfs-tools
  3) renamed the executable /sbin/btrfs to p.e /sbin/btrfs.save

  Now i get a blank screen for about 15 seconds until the splash screen
  appears.

  How can I get rid of this?

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