bug#21011: df utility

[Bob Proulx]

erbenton wrote:
> df: ‘/sys/kernel/debug/tracing’: Permission denied
>...
> Still the same issue, using df from a non-root account always
> results in permission denied warning which messes with scripts that
> use df.  strace shows that even with -x debugfs or -x sysfs that df
> is still probing /sys

Could you also provide information on /etc/mtab and the contents
of it?  I expect /etc/mtab is a symlink to /proc/mounts but I am
curious about the /sys entries that are in it.

  ls -l /etc/mtab

  cat /etc/mtab

Thanks,
Bob