Ubuntu
ureadahead package

  1. Bug #570014
  2. Comment #0

Comment 0 for bug 570014

Revision history for this message
John Dong (jdong) wrote :

Binary package hint: ureadahead

ureadahead relies on stat()'ing mountpoints to retrieve the major/minor of a given filesystem. This unfortunately does not work on btrfs (see related bug #450260)

As a result, it is unable to find the /sys/dev/block/*/queue/rotational file for btrfs devices, leading to an error like:

ureadahead: Unable to obtain rotationalness for device 0:26: No such file or directory

and no pack generation for a btrfs filesystem.