Date: Mon, 18 Jan 2016 10:03:39 +0100
From: =?UTF-8?Q?BERTRAND_Jo=c3=abl?= <joel.bertrand%systella.fr@localhost>
Message-ID: <569CAA6B.6070601%systella.fr@localhost>
| I have done fsck in single user mode on all slices and fsck has
| reconnected a directory in /usr/lost+found.
| I don't understand how delete this directory,
You should probably work out what it was first, from the link count,
it clearly contains a sub-directory, and perhaps other files.
| it seems to be a hard link on /root but /root and /usr are
| not on the same slice !...
As you suspect, that is not possible.
| legendre# cd lost+found/
| legendre# ls -l
| total 2
| drwxr-xr-x 3 root wheel 512 Jul 18 2015 #3470097
| legendre# pwd
| /usr/lost+found
| legendre# cd #3470097/
That's your mistake, '#' is the comment character, what you just did
was "cd" - ie: "cd ${HOME}"
Just quote the #, ...
cd \#3470097
(the trailing / is not needed), and then look around. You'll need to do
that (with \ " or ' quoting, every time you refer to it.
You might prefer to just rename it first
mv \#3470097 recovered
(or whatever name you prefer) and proceed from there.