[Bug 1516451] Re: check_disk plugin broken after upgrade to 15.10

[Brian Morton]

I suspect there isn't a code change here, but rather a difference in the
way Ubuntu is presenting its mount points.  The plugin tries to
enumerate and check all mounts.  A better use might be to add the actual
mount points to be monitored with -p

/usr/lib/nagios/plugins/check_disk -w '20%' -c '10%' -e -p / -p /var -p
/boot

12.04:
mount
<snip>
none on /sys/kernel/debug type debugfs (rw)
<snip>

14.04:

debugfs on /sys/kernel/debug type debugfs (rw,relatime)
tracefs on /sys/kernel/debug/tracing type tracefs (rw,relatime)

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Title:
  check_disk plugin broken after upgrade to 15.10

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