Problems with headless system

[Liam Proven]

On 14 April 2017 at 14:27, Jay Ridgley <jridgley2 at austin.rr.com> wrote:
> Good Morning,
>
> At least I hope you day is good...
>
> I have a headless system that I manage via ssh from another system in my
> network. This morning I got the following:
>
> cdjsys at mateo:~$ sudo apt-get check && sudo apt-get update && sudo apt-get
> dist-upgrade
> -bash: /usr/bin/sudo: Input/output error
> cdjsys at mateo:~$
>
> I  tried just sudo apt-get check alone and get the same error.
>
> I am logged on as a user in the sudoers file. Up until this morning I never
> had a problem with the above command string. I am running:
>
> Ubuntu 16.04.2 LTS (GNU/Linux 3.2.0-64-generic-pae i686)
>
> Further investigation has yielded that many commands display the same error.
> For example:
>
> cdjsys at mateo:~$ less .bashrc
> -bash: /usr/bin/less: Input/output error
> cdjsys at mateo:~$
>
> cat .bashrc works fine as does ls -la .
>
> and shows:
>
> -rw-r--r-- 1 cdjsys cdjsys   3214 Apr 25  2013 .bashrc
>
> Any ideas?

Could be lots of things. I don't have any direct ideas.

I'd check that vital filesystems (/, /var etc.) weren't full.

If they were not, I'd reboot it and perhaps do an fsck -f on root and
any others.

If it were mine, I'd probably connect a screen & keyboard & do this
locally with a bootable USB key or something.

But this is just general troubleshooting when I don't really know, TBH.


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