On Mon, 22 Oct 2007, Phil Schaffner wrote: > 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 Turns out the laptop didn't seem to like part of the DVD(s), so I opted to boot from CD, and the install went fine from there. Always helpful to have both methods available. Thanks. Scott > > Phil > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >