root@system:~# less myfile -bash: /bin/less: Input/output error
The root filesystem is dead. But my cat is still alive (in my memory):
root@system:~# cat > /tmp/somefile C^d root@system:~#
He's kind of lonely though, all his friends are gone:
root@system:~# mount -bash: /bin/mount: Input/output error root@system:~# dmesg -bash: /bin/dmesg: Input/output error root@system:~# less -bash: /bin/less: Input/output error root@system:~# chmod -bash: /bin/chmod: Input/output error
The system is still running, and fulfilling its purpose. I know, I know, the only sane response to this is to get the system down and replace the root drive. Unfortunately that's not a option as it would cost a lot of time and money. Also, it would kill my cat, and that would make me sad.
I've thought of bringing him his usual friends from a donor. I dare not try to scp them in, in case ssh tries to load it and cuts the line (the binary is gone anyway). This sounds like a job for my cat's cousin:
root@system:~# netcat -l 1234 > /tmp/less -bash: netcat: command not found
Unfortunately he's long gone.
Now, I can try to trick my cat to perform a ritual to resurrect him:
cat > netcat < /dev/tcp/localhost/9999
And that sort of worked. He's almost alive:
root@system:/tmp# /tmp/netcat -bash: /tmp/netcat: Permission denied
He just needs a tiny spark of life. That little
+x magic incantation that I cannot recite at the moment.
Can you assist me bringing my cat's friends back?