Unable to run su or ps command: Error: /proc must be mounted
Issue
- Unable to execute su and ps commands, getting the following error for non-root users.
$ ps
Error: /proc must be mounted
To mount /proc at boot you need an /etc/fstab line like:
proc /proc proc defaults
In the meantime, run "mount proc /proc -t proc"
or
$ ps
Error, do this: mount -t proc proc /proc
Environment
- Red Hat Enterprise Linux 7
- filesystem
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