[CentOS] 5.5 x86_64 live cd

Thu Dec 9 12:53:46 UTC 2010
cybernet <cybernet2u at yahoo.com>

A preliminary development version of ext4 was included in version 2.6.19[4] of the Linux kernel. On 11 October 2008, the patches that mark ext4 as stable code were merged in the Linux 2.6.28 source code repositories,[5] denoting the end of the development phase and recommending ext4 adoption. Kernel 2.6.28, containing the ext4 filesystem, was finally released on 25 December 2008


http://en.wikipedia.org/wiki/Ext4


CentOS5.5 has the 2.6.18.* kernel so doesn't support ext4


From: Jason Pyeron <jpyeron at pdinc.us>
To: 'CentOS mailing list' <centos at centos.org>
Cc: 
Sent: Thursday, December 9, 2010 9:38:20 AM
Subject: [CentOS] 5.5 x86_64 live cd

In the bang head and repeat mode here.

The live usb partition is /dev/sda1

Reboot / power on
It auto mounts the /dev/sda2 as ext4 on /mnt/disc/sda2
$ umount /mnt/disc/sda2
$ mkdir /root/foo
$ mke2fs /dev/sda2
$ mount /dev/sda2 /root/foo
Kernel panic

Snip from the kernel panic:
??????
list_del+0xb/0x71
cache_alloc_refill+0xf1/0x186
ext2_fill_super+0x0/0xa37
....
system_call+0x7e/0x83

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