I'm putting this onlist because I tried to send directly to David and got "relaying denied"; I have no idea why. -- Cheryl "Where your treasure is, there will your heart be also." ---------- Forwarded message ---------- Date: Sat, 26 Jun 2004 20:26:00 -0500 (CDT) From: Cheryl Homiak <chomiak@xxxxxxxxxxx> To: David Csercsics <david at really.isa-geek.net> Subject: journalling file systems What exactly did you want to know? I'm running debian, of course, not slackware, though I might try out slackware on one of my two computers eventually again. I used zipspeak when I was first learning linux. anyway, I have journalling running (ext3) on both my computers. first I had it on my desktop but went back to ext2 for a while because you can't run "recover" with ext3. But it isn't like I need that very often so when I changed my laptop to ext3 I also changed my desktop back. I like it because you don't have to go through fsck if your power goes down or for some reason you have to shut off precipitously. I do have fsck set so it will run once in a great while, since the man page suggested it wasn't a good idea to never have it run but I don't have to worry every time an accident happens that fsck is going to leave me with a bunch of inodes somewhere to sort through or with damage i have to fix manually. Is this what you wanted to know or were you talking about something else to do with journalling? You don't have to unmount partitions to do it, though some of the howtos say to do so and some say not to do so. Here's what I did: 1. I made sure that ext3 was compiled into my kernel; I did keep ext2 around but only as a module as I've heard that if you also keep it built in to the kernel it will try to mount you ext2 anyway--don't know whether that's true or not. 2. I think I then rebooted so I was running the kernel with ext3 support in it; don't remember for sure if that was necessary but it couldn't hurt. 3. I did tune2fs -j /dev/hda1 and so on through all my partitions except of course for swap and the dos partition on my desktop. 4. For each partition I ran: tune2fs -c 0 so fsck wouldn't try to check according to the number of boots. 5. I ran tune2fs -i 180 so it would run fsck every 180 days. 6. I changed my ext2 partitions in /etc/fstab to ext3. 7. I rebooted. Usually you can see by running dmesg if things are mounting ext3 or by scrolling up at the login prompt and looking at the prelogin screens. Maybe I shouldn't have written all this without finding out what you actually were asking, but if it's not relevant i can keep it around in case I have to do it again and can't remember what I did. -- Cheryl "Where your treasure is, there will your heart be also."
