On 4/28/08, Rony gnulinuxist@gmail.com wrote:

Agnello George wrote:

...

Hi I am trying to install Cent OS 5 on a freshly formatted HDD. When boot my system frm the CD rom i get e following error

Whenever you have problems of booting from CDs, always cross check the same CD on other systems.

-- Regards,

Rony.

Thanks for the tip, i used the same hard disk on another system , booted with the same CD ( cent OS ) .... and it didn't give me any 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

On Monday 28 Apr 2008 11:59:08 pm Agnello George wrote:

........ any tips on how to check a defective RAM

1. You can use, memtest86+ package to check RAM status at boot time, package will show option in GRUB menu. Ubuntu has this package by default installed with official CD/DVD.

2. You can use Google for Hardware related fixes. Or call Rony on visit ;) Or this article I found,

http://www.microsoft.com/windowsxp/using/setup/expert/ballew_tshootram.mspx

On Tue, Apr 29, 2008 at 10:55 PM, Osric Fernandes osric.fernandes@gmail.com wrote:

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-insta...

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

--- ... .-. .. -.-.

http://mm.glug-bom.org/mailman/listinfo/linuxers

Thanks for the links, no i Just had one RAM stick ( 512MB ) , but what i did what i got a new RAM stick DDR2 512 MB ( from another system ) ... Then i installed Debian etch ( net install ) ..... ( actually a friend did the installation for me :-) ) ....... and it never gave any issue !!

BTW i tried the memtest86 ( recommended by Rony ) ( before changing the RAM ) it took a long time, but it kept repeating the test(s), i couldn't actually figure out what to look for !

Any ways thanks for all the help

Have a gr8 day! :-)

Kartik Mistry wrote:

On Monday 28 Apr 2008 10:58:27 pm Mehul Ved wrote:

...

Checked the CD for defects?

Specially, if it is LFY CD ;)

Very true. I had the same LFY experience this month too but within an hour I rushed back to my paperwala and got the magazine replaced. I thought they mended their ways but they still churn out defective media. Now that I got NU, I will no longer depend on them for distros.