From: Christian K. <kre...@in...> - 2001-04-04 18:41:49
|
Hi, could somebody who is running ext3 please tell me its fs magic code? It is probably called EXT3_SUPER_MAGIC and hides somewhere in your /usr/include tree :) Thanks, -- Christian. ________________________________________________________________________ mailto:kre...@cs... |
From: Michael J. <me...@va...> - 2001-04-04 19:24:47
|
On Wednesday, 04 April 2001, at 14:22:10 (+0200), Christian Kreibich wrote: > could somebody who is running ext3 please tell me its fs magic code? > It is probably called EXT3_SUPER_MAGIC and hides somewhere in your > /usr/include tree :) /usr/include/linux/ext3_fs.h:#define EXT3_SUPER_MAGIC 0xEF53 Michael -- Michael Jennings (a.k.a. KainX) http://www.kainx.org/ <me...@et...> Software Engineer, VA Linux Systems Author, Eterm (www.eterm.org) ----------------------------------------------------------------------- "The future is all around us, waiting in moments of transition to be born in moments of revelation." -- G'Kar, Babylon 5 |
From: Christian K. <kre...@in...> - 2001-04-04 20:01:17
|
Michael Jennings wrote: > > On Wednesday, 04 April 2001, at 14:22:10 (+0200), > Christian Kreibich wrote: > > > could somebody who is running ext3 please tell me its fs magic code? > > It is probably called EXT3_SUPER_MAGIC and hides somewhere in your > > /usr/include tree :) > > /usr/include/linux/ext3_fs.h:#define EXT3_SUPER_MAGIC 0xEF53 Ouch. That is the same as for ext2. Thanks anyway, Michael. Cheers, -- Christian. ________________________________________________________________________ mailto:kre...@cs... |
From: Ted N. <tn...@as...> - 2001-04-04 20:28:40
|
* Christian Kreibich (kre...@in...) wrote: > Michael Jennings wrote: > > /usr/include/linux/ext3_fs.h:#define EXT3_SUPER_MAGIC 0xEF53 > Ouch. That is the same as for ext2. Thanks anyway, Michael. Wasn't one of the goals of ext3 complete backwards compatability with ext2? I remember hearing that they wanted you to be able to mount an ext3 partition as ext2 and have it work perfectly, except that it wouldn't journal. So that people could switch more easaily or something like that. There might not be any sort of easy test to see if a partition already has the ext3 journals set up on it. If I remember correctly the ext3 code will auto convert an ext2 partition the first time you mount it. -Ted |
From: Michael J. <me...@va...> - 2001-04-04 20:36:50
|
On Wednesday, 04 April 2001, at 21:59:28 (+0200), Christian Kreibich wrote: > Ouch. That is the same as for ext2. Of course it is. ext3 is simply ext2 with a journal and a special mount option which gives the inode number for the journal. :-) Michael -- Michael Jennings (a.k.a. KainX) http://www.kainx.org/ <me...@et...> Software Engineer, VA Linux Systems Author, Eterm (www.eterm.org) ----------------------------------------------------------------------- "Oh gaze of love, so melt my pride that I may in your house but kneel, and in my brokenness to cry spring worship unto thee." -- Jars of Clay, "Hymn" |
From: Christian K. <kre...@in...> - 2001-04-04 21:15:02
|
Michael Jennings wrote: > > On Wednesday, 04 April 2001, at 21:59:28 (+0200), > Christian Kreibich wrote: > > > Ouch. That is the same as for ext2. > > Of course it is. To me that wasn't obvious. I'm aware that ext3 is designed to be compatible, but nevertheless I assumed this would be a way to distinguish them. -- Christian. ________________________________________________________________________ mailto:kre...@cs... |
From: Michael J. <me...@va...> - 2001-04-04 21:30:41
|
On Wednesday, 04 April 2001, at 23:12:34 (+0200), Christian Kreibich wrote: > To me that wasn't obvious. I'm aware that ext3 is designed to be > compatible, but nevertheless I assumed this would be a way to > distinguish them. Well, one way would be to check the fstab or the mount table. You could also look for the "has_journal" feature bit. See the debugfs code for details. Michael -- Michael Jennings (a.k.a. KainX) http://www.kainx.org/ <me...@et...> Software Engineer, VA Linux Systems Author, Eterm (www.eterm.org) ----------------------------------------------------------------------- "Oh, yes, we love EE people. They have a low level of knowledge." -- Deanna G., Microsoft Recruiter |
From: Christian K. <kre...@in...> - 2001-04-04 22:09:13
|
Michael Jennings wrote: > > Well, one way would be to check the fstab or the mount table. You > could also look for the "has_journal" feature bit. See the debugfs > code for details. Will do. Thanks for the pointer. Cheers, -- Christian. ________________________________________________________________________ mailto:kre...@cs... |
From: <ra...@ra...> - 2001-04-04 20:39:53
|
On 4 Apr, Christian Kreibich scribbled: > Michael Jennings wrote: > > > > On Wednesday, 04 April 2001, at 14:22:10 (+0200), > > Christian Kreibich wrote: > > > > > could somebody who is running ext3 please tell me its fs magic code? > > > It is probably called EXT3_SUPER_MAGIC and hides somewhere in your > > > /usr/include tree :) > > > > /usr/include/linux/ext3_fs.h:#define EXT3_SUPER_MAGIC 0xEF53 > > Ouch. That is the same as for ext2. Thanks anyway, Michael. ext3 and ext2 are compatible - thats why :) it works - all my ext3 stuff sows as ext2/dir :) thats fine. -- --------------- Codito, ergo sum - "I code, therefore I am" -------------------- The Rasterman (Carsten Haitzler) ra...@ra... ra...@va... VA Linux Systems ra...@de... Mobile Phone: +1 408 887 3163 Work Phone: +1 510 687 7069 |
From: Javier S. <kf...@ha...> - 2001-04-04 20:55:05
|
In case you need these as well: /usr/src/linux/include/linux/xfs_fs.h: #define XFS_SUPER_MAGIC 0x58465342 /usr/src/linux/include/linux/reiserfs_fs.h: #define REISERFS_SUPER_MAGIC 0x52654973 -- Javier A. Suarez kf...@ha... |
From: Christian K. <kre...@in...> - 2001-04-04 21:16:35
|
Javier Suarez wrote: > > In case you need these as well: > > /usr/src/linux/include/linux/xfs_fs.h: #define XFS_SUPER_MAGIC 0x58465342 > > /usr/src/linux/include/linux/reiserfs_fs.h: #define REISERFS_SUPER_MAGIC > 0x52654973 Yes! Excellent :) Best regards, -- Christian. ________________________________________________________________________ mailto:kre...@cs... |
From: Christian K. <kre...@in...> - 2001-04-04 22:10:47
|
Jeremy Norris wrote: > > I found this MAGIC number for FFS (Berkeley Fast Filesystem) in FreeBSD's > includes: > #define FS_MAGIC 0x011954 in /usr/include/ufs/ffs/fs.h (I dunno if you need > it, or if this is even an equivalent for ext2,ext3,resierfs,etc.). Don't worry about that -- just keep'em rolling in :) Cheers, -- Christian. ________________________________________________________________________ mailto:kre...@cs... |