-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 jdd wrote:
Jeff Mahoney a écrit :
I'm not sure what problems you had when upgrading from ext2, but tune2fs - -j should have only changed the magic number and added a journal.
I use an usb drive (300Gb) as swap between windows and Linux. I use an etx2 native driver for XP that allows ext2 partition to be read exactly as NTFS ones, very well done and really usefull;
At first I formatted my drive with ext2, it worked, then I tried ext3 (ext2 with 300Gb, don't do a fsck too often :-!) but this one was not read by the win driver, so I switched back to ext2... and loose the data.
these data where garbage (test bed), but this make me feel it's better not rely on the ext2<>ext3 compatibility (what is not a real problem, I live with ext2)
There is not ext2<>ext3 compatibility. The compatibility is one-way, but can work the other way until you enable an incompatible feature. If you have an ext3 implementation, you'll be able to read ext2 and ext3. If you have an ext4 implementation (when it's complete), you'll be able to read ext2 and ext3 file systems. Ext3 won't be able to read all ext4 file systems, just as ext2 can't always read ext3 file systems. Each successive version is a superset of the earlier version. It's an upgrade path. Once you add incompatible features, like hashed directories, for example, you can't mount it on an older implementation. This is known, and why these features need to be explicitly enabled. That said, I have no idea what the windows ext2 driver is doing, and I don't consider it not understanding ext3 file systems a show stopper. - -Jeff - -- Jeff Mahoney SUSE Labs -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iD8DBQFFCnRqLPWxlyuTD7IRAjjjAJ46ZtatUcXd+PtGt6+3jlbqtxtKFQCgmdjb T8I5kI6PE96pJhb4pGky0D4= =l4PR -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org