[syslinux] Debugging memdisk loaded via pxelinux
Miller, Shao
shao.miller at yrdsb.edu.on.ca
Tue Oct 25 05:37:44 PDT 2011
Good day, Michael T. Davis.
In regards to your query for how to query disk geometry, I'd suggest
installing Syslinux to the USB flash drive's working partition and
running Syslinux' DISK.C32 module from the 'boot:' prompt. You will get
the values for heads and cylinders, then you'll know what to pass to
MEMDISK for the same size of image.
boot: disk.c32
DISK 0x80:
C/H/S: 16 heads, 1 cylinders
63 sectors/track, 1 drives
EDD: ebios=1, EDD version: 30
16 heads, 2 cylinders
0 sectors, 512 bytes/sector, 63 sectors/track
Host bus: ISA, Interface type: ATA
So:
LABEL usb_image
KERNEL memdisk
APPEND h=16 c=2
INITRD usb_image.hdd
Also, please be sure that you are capturing the entire USB flash device,
and not just the partition, when creating your image.
- Shao Miller
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