From 7ec04896dca40c6606b4293e5c8e7bf34265e51b Mon Sep 17 00:00:00 2001 From: Gene Cumm Date: Tue, 29 Mar 2011 18:35:18 -0400 Subject: [PATCH] diag/geodsp/README: Additional use notes --- diag/geodsp/README | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/diag/geodsp/README b/diag/geodsp/README index 43a3edc..55e0843 100644 --- a/diag/geodsp/README +++ b/diag/geodsp/README @@ -3,3 +3,9 @@ GeoDsp: Images to display the geometry as the BIOS has choosen to interpret it. GeoDsp1S is a one-sector variant containing all code in one sector that is intended to test behavior with a typical MBR/partition table layout. A partition table should be written after writting an image. GeoDspMS is a multi sector variant intended to look like Syslinux installed on a file system on the raw device (as opposed to a file system within a partition). + +GeoDspMS can also be used to attempt to make the boot sector look like a normal file system's boot sector (ie FAT12/FAT16/FAT32). In order to do this, you must first save a portion the existing boot sector (the majority of the BIOS parameter block). + dd bs=1 skip=3 count=87 if=/dev/sda of=sda.bpb + dd conv=notrunc if=geodspms.img of=/dev/sda + dd conv=notrunc bs=1 seek=3 count=87 if=sda.bpb of=/dev/sda + -- 2.7.4