topic Re: Migrating from ext2 fs to ext3 fs? in Operating System - Linux

Migrating from ext2 fs to ext3 fs?

K.C. Chan — Tue, 19 Feb 2002 21:30:47 GMT

Gurus,
what command do you use if you want to migrate from ext2 to ext3 filesystem (Yes my kernel supports ext3 fs)? Thanks in advance for your help.

Re: Migrating from ext2 fs to ext3 fs?

I_M — Wed, 20 Feb 2002 07:36:45 GMT

Hi

before you start to work, please confirm following pkg version.
e2fsprog 1.20 or later

tune2fs -j /dev/sda6

You can use this command either mounted or not mounted the /dev/sda6.

Regards,

Re: Migrating from ext2 fs to ext3 fs?

Peter Kloetgen — Wed, 20 Feb 2002 08:39:03 GMT

Hi Michael,

before doing the upgrade, please think over that some commercial backup products don't support ext3 backups, like Ominback.

Allways stay on the bright side of life!

Peter

Re: Migrating from ext2 fs to ext3 fs?

K.C. Chan — Wed, 20 Feb 2002 14:33:37 GMT

Firstly, I don't have the luxury for a commercial backup system. But thanks for your input. Lastly, No I don't have the version of the package. Please let me know where I can get it and update it. Thanks for your assistance.

Re: Migrating from ext2 fs to ext3 fs?

Mark Fenton — Thu, 21 Feb 2002 03:01:52 GMT

Michael,

Quoting from the man page:
AVAILABILITY
tune2fs is part of the e2fsprogs package and is available
from http://e2fsprogs.sourceforge.net.

i suspect that if you have the files:

/sbin/e2fsck
/sbin/tune2fs

then you probably have the requisite version:

/sbin/e2fsck -V
e2fsck 1.23, 15-Aug-2001 for EXT2 FS 0.5b, 95/08/09
Using EXT2FS Library version 1.23, 15-Aug-2001

from my installation (RH 7.2).

man tune2fs for more details on the command's usage.

happy journaling!

Re: Migrating from ext2 fs to ext3 fs?

K.C. Chan — Thu, 21 Feb 2002 16:14:57 GMT

All, I've download an upgrade e2fsprogs to version 1.23. Here's what I have as my filesystem:
/dev/hda5 /
dev/hda1 /boot

I've already converted /dev/hda5 to ext3. Here's the output of tune2fs on /dev/hda5: "
tune2fs -j /dev/hda5
tune2fs 1.23, 15-Aug-2001 for EXT2 FS 0.5b, 95/08/09
Creating journal inode: done
This filesystem will be automatically checked every 20 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override."

Do I need to change anything in /etc/fstab in regards to /dev/hda5? Since, this is my root filesystem, Do I need to create an initial ramdisk? Thanks for your input.

Re: Migrating from ext2 fs to ext3 fs?

Eric Ladner — Thu, 21 Feb 2002 17:34:21 GMT

FYI. Omniback does support ext3 now. See patch PHSS_25949 (HP-UX 11.0 Omniback, other OS's have equivalents).

Re: Migrating from ext2 fs to ext3 fs?

Mark Fenton — Thu, 21 Feb 2002 20:05:08 GMT

Michael,,

Check that tune2fs properly updated /etc/fstab to indicate that the partition is now ext3:

cat /etc/fstab
~~~
LABEL=/ / ext3 defaults 1 1
LABEL=/boot /boot ext3 defaults 1 2
........
RedHat uses this funky LABEL stuff which I find annoying, but...
mount
~ ~ ~
/dev/hda2 on / type ext3 (rw)
/dev/hda1 on /boot type ext3 (rw)
...

shows the real deal.
I didn't have to create a new initrd for my system, but there have been several discussions on the topic on this board.

Re: Migrating from ext2 fs to ext3 fs?

K.C. Chan — Thu, 21 Feb 2002 20:10:22 GMT

Mark,
df -Tk would also show the Type of filestystem being mounted.

Mark, do you have hour /boot and / (root) filesystem on ext3? If so, were you able to boot w/o initial ramdisk?

If somecould clarify why and when initial ramdisk is needed when you're on ext3 filesystem? Thanks.