[CentOS-devel] PXE Boot CentOS 5.5 Live CD

Patrice Guay patrice.guay at nanotechnologies.qc.ca
Tue Jun 22 13:35:31 UTC 2010

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:
> Hello,
> 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..." 
> https://www.centos.org/uploads/smil3dbd4d75edb5e.gif
> 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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