On Mon, 2007-10-22 at 13:13 -0400, Scott Ehrlich wrote:
> I tried to boot from two different CentOS 5 DVDs, both pass the checksum
> test, and both give me the same error on a Dell laptop from either GUI or
> text install modes:
>
> invalid compressed format (err=2)
> VFS: Cannot open root device "<NULL>" or unknown-block(253,0)
> Please append a correct "root=" boot option
> Kernel panic...
>
>
> I did some google searching and learned other people have had the same
> problem, but no resolutions were ever posted.
>
> I'm downloading the CD version and will see if that makes any difference.
>
> Assuming it won't make a difference, how do I resolve this so I can get
> CentOS installed on the system?
1. Try the images/boot.iso or images/diskboot.img from CD or USB media
respectively.
2. If you have some flavor of Linux installed, copy the isolinux/vmlinuz
and isolinux/initrd.img to /boot (renamed to *-c5* in GRUB example
below) and create a GRUB or LILO stanza to boot them.
title CentOS5 Installer
root (cd)
kernel /boot/vmlinuz-c5 ro ramdisk=8192
initrd /boot/initrd-c5.img
3. pxeboot
Phil
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