Public bug reported:
An unexpected change in the output of "df /" has happened in either
coreutils 8.21-1ubuntu5.3 or 8.21-1ubuntu5.2.
After doing updates on a number of servers today, the output of "df /"
has changed. It now shows the full device path, including uuid of the
device, instead of just the "generic" device.
For example, on an updated server with coreutils 8.21-1ubuntu5.3:
# df /
Filesystem 1K-blocks Used
Available Use% Mounted on
/dev/disk/by-uuid/xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx 8115168 3542936
4136956 47% /
On a server with coreutils 8.21-1ubuntu5.1:
# df /
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/xvda1 8115168 4260144 3419748 56% /
This makes scripts or other processes (monitoring scripts to report
available disk space, for example) that rely on a standard filesystem
name across numerous servers break, as each server will have a different
disk UUID.
Oddly, attached volumes (non-root volumes) don't exhibit the behaviour, and
continue to show the "generic" device:
# df /media/ebs1
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/xvdf 104806400 43260 104763140 1% /media/ebs1
# lsb_release -rd
Description: Ubuntu 14.04.3 LTS
Release: 14.04
** Affects: coreutils (Ubuntu)
Importance: Undecided
Status: New
** Tags: df
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https://bugs.launchpad.net/bugs/1527416
Title:
Unexpected change in "df /"output
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