David Masover wrote:
Edward Shishkin wrote:
Hans Reiser wrote:
Edward Shishkin wrote:
David Masover wrote:
E.Gryaznova wrote:
Notification:
The reiser4 format was changed in reiser4-for-2.6.11-5.patch and new
reiser4 kernel code is able to handle the old format.
Good, so I don't have to reformat _immediately_...
But, why isn't it for 2.6.12 yet? We're already on at least
2.6.12.2, last I checked...
The reiser4progs-1.0.4 are not able to handle the format changes.
The fix for reiser4progs will be ready next week.
Will there be a conversion tool?
No. Reiser4progs just will support a set of new plugins which have
been added to the kernel.
In particular, mkfs.reiser4 should allow user to specify the plugins
like other existing
ones. This will be a way to create cryptcompress files per superblock.
There is another
more flexible way (which is compatible with the previous one) to
create it per file/directory,
but it uses deprecated metas interface..
Note: since cryptcompress plugin is unstable, the new options are
supposed to be undocumented.
Thanks,
Edward.
So why does this create a format change that breaks things? I cannot
see why it should do so, please explain.
I have lost a track who first called upgrading plugin_set by the
terrible
words "disk format change". Plugin set is not a disk format, it is
supposed
to be upgraded..
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.
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.
