From mboxrd@z Thu Jan 1 00:00:00 1970 From: Subject: Re: reiser4 and grub2 Date: Sat, 05 Mar 2011 15:12:50 +1100 Message-ID: References: <712869e4bd3f8a89f431df5ffb8097b9@cs.karelia.ru> <4CBC37E3.3050301@gmail.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <4CBC37E3.3050301@gmail.com> Sender: reiserfs-devel-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii" To: reiserfs-devel@vger.kernel.org On Mon, 18 Oct 2010 14:04:51 +0200, Edward Shishkin wrote: > sannikov wrote: >> Good day. >> > > Hello. > >> I want to ask you about reiser4 and grub-2. >> >> I am try to write to Yuriy Umanets but his mailboxes are inactive... >> Some few days ago I findes his request about this. >> (http://lists.gnu.org/archive/html/grub-devel/2008-02/msg00263.html) >> >> If it is possible, can you describe current state of Raiser4 support in >> Grub2. >> > > Unsupported. > >> As I know this task yet placed in Grub's TODO list. >> I hope this idea yet alive. >> > > I didn't look at grub2/fs interface yet, but believe that it > is better then grub1's one. > > There is a patch for reiser4 support in grub1. I don't > think it will be a big problem to adjust this one for grub2: > the sources are quite understandable. > > The only thing I am unhappy with is that it can not boot > reiser4 via module stage1_5 (it is too big and can not > fit in 62 sectors), It means that user will need to re-install > grub every time after defragmentation (currently > unsupported, but upcoming). So it would be nice to resolve > this problem in grub2 somehow. > > Btrfs stage1_5 module with multi-device support > successfully fits in 62 sectors. Why reiser4 can not? > I think we need to get rid of the mini-library with a lot > of unneeded functions and put everything in one file > (as other file systems do). > > Thanks, > Edward. > I found some reference material [1] on grub2 as well. http://ubuntuforums.org/showthread.php?t=1195275&highlight=grub2+basics Questions - Can grub2 start a Reiser4 partition on / and boot from that ? - Will Reiser4 fit into the boot sectors that grub2 accesses ? Cheers Glenn [1] It covered topics of the following :- 1. Introduction 2. First Look Differences 3. Improvements 4. Booting Grub 5. Grub 2 Files & Options 6. Adding Entries to Grub 2 7. Removing Entries from Grub 2 8. Grub 2 Splash Images & Theming 9. Changing Menu Resolution 10. Password Protection 11. Booting to Recovery Mode w/o Menu Option 12. Uninstalling GRUB 2 > GRUB 13. Reinstalling GRUB 2 from the LiveCD 14. Booting to LiveCD ISO 15. Booting from the Rescue Mode 16. Restoring GRUB2 / XP / Vista / Win 7 Bootloaders 17. Grub Rescue Image 18. Selected Problems & Bugs 19. Links