[syslinux] PXE-Boot fails after reboot with kernel 2.6.x

H. Peter Anvin hpa at zytor.com
Sun Aug 21 06:39:46 PDT 2005


André Weidemann wrote:
> Hello list,
> I've been using PXE Boot for quite some time now and it has been working 
> without any problems.
> I'm using a Biostar M7VIZ mainboard with a VIA KM400 chipset, and 
> VIA-Rhine VT6102 NIC.
> 
> Yesterday I upgrade the Kernel on my net-boot machine from 2.4.24 to 
> 2.6.12.
> When I power on the machine it boots up normally.
> However, when I reboot the machine, the mainboards PXE-ROM only displays 
> "PXE-M0F: Exiting Intel PXE ROM". It does not even try to retrieve 
> anything via DHCP it just prints the above message, nothing more. If I 
> power off the machine and back on then it is booting again. The above 
> phenomenon is reproduceable.
> 
> The really weird thing however... If I switch back to my 2.4.25 kernel 
> then everything is working a fine after a reboot.
> 
> The whole thing looks like a kernel problem but I wouldn't know where to 
> start searching. I reconfigured the 2.6.12 kernel a few times and even 
> tried the 2.6.13-rc6 kernel but without any luck.
> 

This doesn't have anything to do with syslinux, but...

I can see three possibilities:

a. Different reboot method (e.g. ACPI versus cold restart.)
b. Simple boot flag support in 2.6.
c. Some other kind of ACPI weirdness.

You might want to start by disabling ACPI in 2.6.

	-hpa




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