[SOLVED] "ip: command not found" after power failure

singleton · 2014-12-19 16:32:26

Hello,

After a power failure my Arch box has no network connection available. An 'ip addr' command showed me the outrageous error message :

bash: ip: command not found

How could this ever happen ? How do I recover from such an error ?

Last edited by singleton (2014-12-19 17:34:58)

Trilby · 2014-12-19 16:41:31

That is indeed odd. What were you doing when the power failed - were you by chance in mid-update?

Some diagnostics:

echo $PATH
ls -l /usr/bin/ip
pacman -Qi iproute2

Also, it is unlikely that something that could cause this wouldn't also cause other issues. So I'd first (even before the above diagnostics) run a ~~pacman -Syu, then a~~ pacman -Qk.

EDIT: sorry, the pacman -Syu suggestion is a bit silly: you can't do that until the network is back up - sorry about that one.

singleton · 2014-12-19 17:16:24

I wasn't doing any system maintenance when the power failed, just some regular browsing.

Here's the output of each command :

pacman -Qk

https://bpaste.net/show/e06fb962c42c

echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/lib/jvm/default/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl

ls -l /usr/bin/ip
ls: cannot access /usr/bin/ip: No such file or directory

pacman -Qi iproute2
error: package 'iproute2' was not found

I 'm suspecting I will need to use a fresh installation CD to get over this. Any guidance will be greatly appreciated though!

singleton · 2014-12-19 17:34:38

OK, the recovery was pretty straightforward, everything went fine.

I booted with a fresh CD, mounted the root partition, chroot-ed to my root partition and installed iproute2. After a reboot my box is working decently again.

Thanks trilby for your answer!

Trilby · 2014-12-19 18:26:31

That was going to be my suggestion for a solution if the check looked ok - as it (mostly) does [1]. Figuring out an isolated incident in hindsight is virtually impossible - but it seems the iproute2 package was removed. I actually suspect the power outage might just be a coincidence that revealed the problem by requring a reboot. Perhaps you removed iproute2 by accident at some point.

[1] Note the check output looks "mostly" ok - a better way of using it is `pacman -Qk | grep -v "0 missing files"`. This would reveal one thing worth checking in your system:

polkit: 155 total files, 1 missing file

If you know what file is missing and you intentionally removed it, this is fine - and it is almost certainly not related to the ip issue.

Arch Linux

#1 2014-12-19 16:32:26

[SOLVED] "ip: command not found" after power failure

#2 2014-12-19 16:41:31

Re: [SOLVED] "ip: command not found" after power failure

#3 2014-12-19 17:16:24

Re: [SOLVED] "ip: command not found" after power failure

#4 2014-12-19 17:34:38

Re: [SOLVED] "ip: command not found" after power failure

#5 2014-12-19 18:26:31

Re: [SOLVED] "ip: command not found" after power failure

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