[syslinux] Debugging gPXE -> PXELinux -> LTSP

[Geert Stappers]

Op 06-02-2008 om 09:27 schreef Peter Russell:
> Hi,
> 
> I'm investigating using LTSP for thin clients at my place of work, and
> I've encountered a problem that I don't know how to approach.  I don't
> know if the problem is with gPXE, PXELinux, or the LTSP kernel, but I
> think PXELinux is probably the right level to investigate it.
> 
> My situation is as follows:
> 
> I've installed the LTSP system from Ubuntu Gutsy.  I've tested it with
> an HP t5530 dedicated thin client, which has PXE network booting and
> this works fine.  The LTSP image boots, and connects to the server with
> ssh as expected.
> 
> I've then gone on to test with an old PC.  This machine doesn't have a
> network boot ROM, and so I've downloaded gPXE from git, and built a boot
> CD.  Now as far as I can determine, gPXE is working fine, it gets itself
> a DHCP lease, and loads PXELinux from the tftp server.  It then goes on
> to print:
> 
> Loading vmlinuz...... aborted.
> boot:

Seems like an error in PXELINUX
(PXELINUX is the one that is loading vmlinux,
the 'boot:' prompt is also from PXELINUX )

> I need to know what's causing the boot to fail.  I know that this
> machine is capable of running Linux, as I've run an Ubuntu live CD on
> it.  Is there any way that I can get more information out of PXELinux,
> such as the size of the kernel that it's downloaded, or what has caused
> it to abort?

I guess it is the amount of RAM in the old PC.
(as the setup works with the HP t5530)


Geert Stappers
Feeling sorry for not being able to tell how to activate output in PXELINUX