Re: [linux-lvm] snapshots & reiserfs

[AJ Lewis <lewis@sistina.com>]

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On Fri, Jul 27, 2001 at 05:31:38PM +0100, James Pattinson wrote:
> Im sure this is a FAQ but I can't find it.
> 
> I want to be able to use snapshots on my beta8 / reiserfs (stock 2.5.7)
> system. I can create a snapshot OK, but when I try to mount it I get an
> error saying we can't replay the logs since we are mounted read only.

<-snip->
 
> Any ideas? snapshots seem really cool, and i want to play :)

You need to make sure you apply the linux-2.4.x-VFS-lock.patch, and also
apply this:

--------
diff -Nru a/fs/reiserfs/super.c b/fs/reiserfs/super.c
--- a/fs/reiserfs/super.c       Sun Apr 29 20:44:38 2001
+++ b/fs/reiserfs/super.c       Sun Apr 29 20:44:38 2001
@@ -80,7 +80,7 @@
     reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s), 1);
     journal_mark_dirty(&th, s, SB_BUFFER_WITH_SB (s));
     reiserfs_block_writes(&th) ;
-    journal_end(&th, s, 1) ;
+    journal_end_sync(&th, s, 1) ;
   }
   s->s_dirt = dirty;
   unlock_kernel() ;
--------

Apply the patches in this order:
 - LVM Beta8 patch
 - VFS-lock patch
 - the patch included in this email

Regards,
-- 
AJ Lewis
Sistina Software Inc.                  Voice:  612-638-0500
1313 5th St SE, Suite 111              Fax:    612-638-0500
Minneapolis, MN 55414                  E-Mail: lewis@sistina.com
http://www.sistina.com

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