Tentative notes for converting / from ext2 to ext3 while booted on /:
unmount everything (including /proc ...)
tune2fs -Ohas_journal /dev/cciss/c0d0p3 (assuming c0d0p3 is your root partition)
mount -t ext3 -o remount,rw / /
change the root entry in /etc/fstab
mount -a
mkinitrd /boot/initrd-ext3 2.4.18-3-smp
edit grub to point to the new initrd
shutdown -r now
Converting / from EXT3 to EXT2
while booted on the installation CD
Note: It appears that you cannot convert from ext3 to ext2 while booted on it. You must boot to the installation CD in rescue mode or you must pivot_root over to the initrd filesystem.
Tentative notes for converting / from ext3 to ext2:
Boot to the RH73 installation CD
at the boot prompt enter "linux rescue"
Have the rescue portion mount everything as rw
tune2fs -O^has_journal /dev/cciss/c0d0p3
fsck.ext2 -f /dev/cciss/c0d0p3
mount -t ext2 -o remount,rw / /
rm -f /.journal
/mnt/sysimage/usr/sbin/chroot /mnt/sysimage
mkinitrd /boot/initrd-ext2 2.4.18-3-smp
change the root entry in /etc/fstab
edit grub to point to the new initrd
exit (from chroot)
exit (from rescue mode) - system will reboot and CD will eject
<snip...>
Advisory: RHBA-2002:292-05
Last updated on: 2002-12-20
New kernel fixes ext3 data-journaling data loss and tg3 hang
Updated packages for Red Hat Linux 7.1, 7.1K, 7.2, 7.3, and 8.0 are now
available that fix a bug in the ext3 file system discovered in the previous
errata kernel. The bug has the potential to cause data loss if the file
system is used in a non-default way.
<snip...>
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