Good ${greeting_time}, Gert!

15 Oct 2016 10:16:54, you wrote to All:

 GA> I have got a problem with my node 2 there have a big 1TB harddisk
 GA> where I have all the ftp files on. The harddisk is normally mount
 GA> as /dev/sdb1 with ext4,

Generally, sensitive information should be kept on /dev/md1 mounted at /home
(with /dev/md0 mounted at /).

 GA> but now will linux not mount it and says there is error on the
 GA> harddisk. It comes with that the superblok is missing o it

0. You've already lost all your data. Now, let's see what you can do...

I'd like to have a look at the output of

smartctl -A /dev/sdb \
| sed -nre 's,^ +,,g;/^(5|187|188|197|198) /{s,  .* , ,g;p}'

 GA> and when I trying to ru schk.ext4 on it will this not do anything
 GA> with and respons with there is some inode error it not can make
 GA> anything with and that the inode is too big to repair and make a
 GA> new superblok and then just dropping out.

You'd better don't do that without looking at the SMART info first...

 GA> So is there something I can do to with the harrdisk to make it to
 GA> be mounted fine and get the superblok back so fidonet files from
 GA> nearly 2 years can bee back visible on it.

1. If the HDD is in a pre-fail state, get the replacement and perform a
sector-by-sector copying of data (including all logical errors, `man dd`).
2. Once there are only logical errors (like on a just-copied new HDD), try
running e2fsck with -b parameter (see `man e2fsck`).


--
Alexey V. Vissarionov aka Gremlin from Kremlin
gremlin.ru!gremlin; +vii-cmiii-cmlxxvii-mmxlviii

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