[PLUG] Does your favorite rescue CD recognize your currentfilesystem?

William A Morita wamorita at hevanet.com
Sat Jan 16 18:57:32 PST 2010


John

My favorite is Knoppix 6.2.
It does do ext4. 

- Bill Morita
wamorita At hevanet.com

-----Original Message-----
From: plug-bounces at lists.pdxlinux.org
[mailto:plug-bounces at lists.pdxlinux.org] On Behalf Of John Jason Jordan
Sent: Saturday, January 16, 2010 6:53 PM
To: PLUG
Subject: [PLUG] Does your favorite rescue CD recognize your
currentfilesystem?

I have been using Fedora 11, x86_64 for about a month now. It just occurred
to me to check what fileystem Fedora installed. I recall during the
installation I told it to use the entire hard disk and just clicked OK on
the defaults. Turns out that it created a 200 MB ext3 boot partition and a
logical volume of 297 GB which contains an ext4 root partition and a small
swap partition.

I have several rescue CDs, from Knoppix to smaller command line only disks.
Guess what? They're all too old to be able to fix an ext4 filesystem. My
very, very dim understanding is that older systems (with ext3) can
read/write to an ext4 filesystem, but the older e2fsck won't work. I may
well be wrong about the read/write - that is, I may have it backwards.

Fedora started using ext4 with Fedora 10. Ubuntu made it optional with
Jaunty, and Karmic uses it exclusively.

It's Clinic Eve, so I am downloading some more recent rescue CDs. At the
Clinic tomorrow I will boot them and see which ones can deal with my ext4
root partition.
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