[syslinux] Convert ISOLINUX into PXELINUX

H. Peter Anvin hpa at zytor.com
Tue Jun 24 10:53:32 PDT 2008


Ferenc Wagner wrote:
> "Mathieu Terrasson" <m.terrasson.linux at gmail.com> writes:
> 
>> Actually i'm using PXELINUX, When I boot the SYPLINUX.GZ (extract from
>> the iso) I get this error :
>>
>> VFS: Cannit open root device "<NULL>" or unknown-block(3,5)
>> Please append a correct "root=" boot option
>> Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(3,5)
>>
>> Is the error comes from PXELINUX configuation, or the image ?
> 
> $ ls -l /dev/hda5
> brw-rw---- 1 root disk 3, 5 2008-06-12 15:07 /dev/hda5
> 
> It's Linux trying to mount the root filesystem from the first hard
> disk.  I will have a hard time to do it over the network...  But (3,5)
> is rather strange to me, I know nothing about syplinux.

It's probably whatever device the kernel was originally compiled on; 
that ends up getting compiled into the kernel as a default.

	-hpa




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