Re: reiser4progs do not handle the reiser4 format changes

[Edward Shishkin <edward@namesys.com>]

Edward Shishkin wrote:

> David Masover wrote:
>
>>
>>
>> Ok, please explain what this actually means for users.
>>
>> How will an FS made by the current reiser4progs be different than 
>> that made by the new (patched) ones that will be coming out?  Is the 
>> new way better?  If so, how can one take an existing FS and 
>> convert/update/tweak it to the new way?
>>
>
> This is a common scenario:
>
> Each disk reiser4 is supposed to be supported by all kernel/reiser4.


I was wrong here: the only last version of kernel/reiser4 is able
to support _all_ disk file systems. Old kernels will refuse to mount
file systems of new versions with the warning about wrong plugin set
of root inode.

Edward.

>
> Both kernel and reiser4progs have a plugin table which should be 
> upgraded in sync.
> For each point A of upgrading the plugin table all reiser4progs of 
> versions < A
> become invalid for disk reiser4 being once mounted in the 
> kernel/reiser4 of version >= A.
>
> Is it okay?
> Perhaps introducing a special sub-versions of reiser4/reiser4progs for 
> upgrading
> the plugin table will improve the situation..
>
>
> Edward.
>
>>
>>
>
>
>