[CentOS-devel] PXE Boot CentOS 5.5 Live CD

Krishnaprasad_K at Dell.com Krishnaprasad_K at Dell.com
Wed Jun 23 10:39:49 UTC 2010

Hello Patrice,


                I've raised a new ticket - Ticket #37.. Could you Please
take a look ?




From: centos-devel-bounces at centos.org
[mailto:centos-devel-bounces at centos.org] On Behalf Of Patrice Guay
Sent: Tuesday, June 22, 2010 7:06 PM
To: The CentOS developers mailing list.
Subject: Re: [CentOS-devel] PXE Boot CentOS 5.5 Live CD


Hi Krishnaprasad,

I saw your post about the same topic on the CentOS forum. When you
encounter bugs about the CentOS LiveCD, the preferred way to report them
is via a ticket on the CentOS LiveCD website (
https://projects.centos.org/trac/livecd). Could you create a ticket
there please?


Krishnaprasad_K at Dell.com wrote: 


This is regarding a query w.r.t CentOS 5.5 Live CD Bootup from PXE
server. From the CentOS LiveCD project webpage, i do see that PXE
booting of CentOS live CD is pretty simple as the ISO image itself is
carried inside the initrd.

I downloaded the "livecd-tools-014-8.src.rpm" from CentOS repositories
and created a new initrd image ( which contains Live ISO image ) using
"livecd-iso-to-pxeboot.sh" script.

# ./livecd-iso-to-pxeboot.sh CentOS-5.5-i386-LiveCD-Release2.iso

This creates a new initrd by incorporating the ISO image ( live ISO
image ) with the existing initrd present in the live CD ISO image. 

But when i use this updated initrd from PXE server, it says "Boot
failed...press a key to retry or wait to reset..."  

Here is the PXE entry:-


kernel vmlinuz0
APPEND initrd=initrd0.img root=/CentOS-5.5-i386-LiveCD-Release2.iso
rootfstype=iso9660 rootflags=loop 3 

- where vmlinuz0 is the kernel image present in the CentOS iso and
initrd0.img is the updated initrd image created using the script (
livecd-xxx-pxe.sh ). i.e. CentOS live ISO initrd with ISO image.

When the /tftpboot/pxelinux.cfg/default is updated with the above
entries, then server gets restarted and in the next boot up system shows
an error, i.e. "Alert ! System fatal error during previous boot"

any one have experienced same issues?

Thanks in Advance !

- Krishnaprasad




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