On Tue, Feb 24, 2004 at 10:40:44PM -0500, xucaen wrote: | On Tue, Feb 24, 2004 at 10:24:41PM -0500, Derrick 'dman' Hudson wrote: | > On Wed, Feb 25, 2004 at 03:49:58AM +0100, Jan Minar wrote: | > | On Tue, Feb 24, 2004 at 09:51:26PM -0500, xucaen wrote: | > | > hi all, just looking for information here; why use ext3 journaling | > | > fs instead of ext2? | > | | > | Because 3 > 2. | > | > LOL! | | same here! :-D | | > I use ext3 for main partitions so that if the power fails, I be likely | > to have a corrupt filesystem. I still use ext2 for /boot, for | > example, because it is small (therefore the journal's overhead is more | > expensive) and it isn't updated very frequently and so the probability | | so would you say it's ok to not use ext3 on smaller drive, lets say | a 2 gb drive? That depends. I use ext3 on a 320MB drive in the 486 acting as the router/firewall at my parents' house. I made it ext3 so that there is no risk of corruption when the power fails. | > As for ext3 vs $OTHER_JOURNALLED_FS, I already had ext2 disks with | > data, so moving to ext3 was easy and painless. Moving to anything | > else wouldn't have been so simple. | | Is there a way to convert an existing drive from | ext2 to ext3 without loss of data? (kinda like partition magic?) Yes. In a nutshell : run 'tune2fs -j /dev/<blah>' edit /etc/fstab to say ext3 instead of ext2 unmount the partition mount the partition as ext3. It's a little nicer, but not necessary, to unmount the partition before creating the journal. Note that an ext3 partition is still a valid ext2 partition; thus an ext2-aware kernel without ext3 support can still use the disk (albeit without the journal). I suggest reading some of the more detailed instructions on the web that talk about tricks to let the ext3/ext2 mounting be automatic and a little safer if you misconfigure something the first time around. (namely declaring it ext3,ext2 and making an fsck symlink) HTH, -D -- The heart is deceitful above all things and beyond cure. Who can understand it? I the Lord search the heart and examine the mind, to reward a man according to his conduct, according to what his deeds deserve. Jeremiah 17:9-10 www: http://dman13.dyndns.org/~dman/ jabber: dman@dman13.dyndns.org
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