On Mon, Apr 28, 2008 at 11:59 PM, Agnello George wrote:
<snip>
>  issue !! .... it seem to be a RAM issue on my previous system  !! i
>  guess !! cause the complete error was
>
>  RAMDISK: Compressed image found at block 0
>
> crc error
>  VFS: Cannot open root device "<NULL>" or  unknown-block (253,0)
>  plese append a correct "root=" boot optiion
>  kernel panic -not syncing: VFS : Unable to mount root fs on
>  unknow-block (253,0)
>
>  ........ any tips on how to check a defective RAM

Does the system have two RAM sticks? If yes, then try removing one of
them. A SUSE user with a similar problem has found that technique to
work:
http://www.linuxforums.org/forum/redhat-fedora-linux-help/23810-fedora-installation-problem-vfs-cannot-open-root-device.html

Also, some user on the CentOS forum has reported that upgrading the BIOS works:
http://www.centos.org/modules/newbb/viewtopic.php?topic_id=7884


-- 
Regards
OSRIC XAVIER FERNANDES

Registered Linux User #442219
Gentoo Linux 2007.0
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