I recently updated TeX Live to following version

```
TeX 3.1415926 (TeX Live 2013/Arch Linux)

```

and cannot compile any file anymore, it fails with error 

```
$ pdflatex blab.tex 
This is pdfTeX, Version 3.1415926-2.5-1.40.14 (TeX Live 2013/Arch Linux)
 restricted \write18 enabled.
---! /var/lib/texmf/web2c/pdftex/pdflatex.fmt doesn't match pdftex.pool
(Fatal format file error; I'm stymied)

```

After some research, I found out I am supposed to run `fmtutil --all`, but it also fails with error 

```
$ fmtutil --all
/usr/bin/fmtutil: line 395: /usr/share/texmf/texconfig/tcfmgr: No such file or directory
fmtutil: config file `fmtutil.cnf' not found.

```

I tried some fixing to no avail: `texhash`, `texconfig rehash` do not change anything, and `kpsewhich fmtutil.cnf` yields `/etc/texmf/web2c/fmtutil.cnf`, as it is apparently supposed to.