6.2/pxe blues, was Re: pxe boot size limit?

Danny Braniss danny at cs.huji.ac.il
Tue Sep 19 05:15:33 PDT 2006

> it seems that pxeboot has a limit with respect to the kernel size,
> which prevents the kernel to get loaded, the error printed is
> slightly misleading.
> the solution is to make a kernel with loadable modules, instead of
> compiled in.

not entirely true :-(
but changing kernel size has different results.

kernel is 6.2-PRERELEASE.
hosts are 64bits:
	1 - amd Athlon dual core - nic is em
	2 - intel Xeon dual core - nic is bc
	3 - intel Pentium 4 K8   - nic is bge
1 & 3 are now booting, but 2 is panics with:

/boot/kernel/kernel text=0x430118 data=0x79450+0x3ccf0 
panic: free: guard1 fail @ 0x7c6fe from /r+d/6.2/src/lib/libstand/ufs.c:699

a slightly older kernel, and bigger, boots just fine.
booting from local disk is also ok.

so, what is causing pxeboot to fail?

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