[ipxe-devel] tftp booting a 32bit rhel 5 kernel/initrd (pxeboot images) and iPXE will just "reboot/crash"...

[Torgeir.Wulfsberg at kongsberg.com]

Hi!



I recently noticed that iPXE as of the latest commit to this day (built on my rhel 6/7 client and Ubuntu 15), cannot boot a 32bit rhel 5 pxeboot kernel/initrd image (I have tested 5u3, 5u8, 5u11 images).

iPXE will just "crash/reboot". Funnily enough my 32bit rhel 6 images works fine.



Going back in time to the last good known state (I had downloaded in June 2014), then going back and forth (some months/commits) A LOT, I managed to locate where it would stop working, so I could reproduce this behavior.



This is the commit it would crash/reboot (Makefile.housekeeping - "AR sort BLIB_OBJS"):

https://git.ipxe.org/ipxe.git/commitdiff/335a7ddcd4e2d0faaee6d5b1edf0307dfba3d0e5



To reproduce (tested on rhel6/7 and Ubuntu 15):

________________________________________________________________

# get ipxe, build ipxe.pxe image

cd ~

git clone git://ipxe.org/ipxe.git

cd ipxe

cd src

make bin/ipxe.pxe



# move ipxe image files to tftp server

# tftp boot the ipxe image file we just made

# pressed CTRL+B



# dhcp, so we can fetch file from our tftp/http server

dhcp net0



# download/boot rhel 5 kernel/initrd files from the "images/pxeboot" folder on the DVD)

kernel tftp://192.168.2.102/vmlinuz_rhel5u3_x86

initrd tftp://192.168.2.102/initrd_rhel5u3_x86.img

boot



# and ipxe will just reboot (or crash)

________________________________________________________________



Building the latest ipxe version available from git, and reverting "Makefile.housekeeping - AR sort BLIB_OBJS" (https://git.ipxe.org/ipxe.git/commitdiff/335a7ddcd4e2d0faaee6d5b1edf0307dfba3d0e5), resulted in an iPXE version that works for my rhel 5 32 bit pxeboot images.

Maybe I am the only one still in need of pxebooting 32bits rhel5 images...


--Torgeir

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