Re: problem with corrupted filesystem

[Edward Shishkin <edward.shishkin@gmail.com>]

Marcus Becker wrote:
> Hi,
>
> I tried using hash=tea as mount option with the same result.
>   

I don't think that reiser4 supports such mount option

> Is this something I can change on an already formatted partition?
>   

What do you want to change? IMHO the type of hash can be assigned only
in mkfs time. There was an interface to change it on-line per-directory (via
so-called pseudo-files), but this is still deprecated and is not used.

> Where can I check, which hash is used?

In the plugin table of (root) directory of debugfs.reiser4 -t output.
Attributes of other objects are inherited through the semantic tree
by default and, hence, are not shown.

In your case (that you have sent me) we have the following:

NODE (715370) LEVEL=1 ITEMS=22 SPACE=0 MKFS ID=0x7c4de18e FLUSH=0x0
#0  SD (stat40): [29:1(SD):0:2a:0] OFF=28, LEN=94, flags=0x0
[...]
permission : id = 0
formatting : id = 2 (smart)
hash : id = 1 (r5_hash) <<<<<<<<<<<<<<<
fibration : id = 2 (ext_1_fibre)
statdata : id = 0 (stat40)
diritem : id = 2 (cde40)
crypto : id = 0
digest : id = 0
compress : id = 0 (lzo1)
compressMode : id = 4 (conv)
cluster : id = 0 (64K)
create : id = 0 (reg40)

Edward.

>  /proc/mounts doesn't list the option.
>
> Thanks,
>
> Marcus
>
>
> -----Urspr