delta/syslinux.git/mbr, branch thread

isohdpfx: actually generate the stack frame isolinux expects

2009-06-01T04:29:59+00:00

Actually generate the stack frame isolinux expects.  This is not the
optimal order, but it appears to be what both earlier and later
versions of isolinux expects...

Signed-off-by: H. Peter Anvin

isohdpfx: don't clear %ds before parsing partiting info

2009-05-26T16:19:49+00:00

The partition information is pointed to by ds:si; although ds
will *usually* be 0 it isn't guaranteed (in particular, it may
very well be 0x40 or 0x60); therefore, move the partition parsing
up before the reset of %ds and %es.  As a side benefit, we get
to use push again...

Also, fix the ordering of the two halves of the GPT LBA!

Signed-off-by: H. Peter Anvin

altmbr: cap at 439 bytes so the partition select byte follows

2009-05-26T02:16:24+00:00

Cap altmbr at 439 bytes, so that the partition select byte is not part
of the file.  This means that:

a) updating the altmbr doesn't clobber the configuration;
b) it is easier to simply concatenate the select byte to the file.

This also matches gptmbr behavior.

Signed-off-by: H. Peter Anvin

isohybrid: revert to a stack format compatible with previous version

2009-05-26T00:48:58+00:00

Revert the isohybrid handover protocol so that it has a stack format
compatible with the previous versions; that way we can also revert the
magic number to a compatible one.

Signed-off-by: H. Peter Anvin

altmbr: fix accounting of logical partitions

2009-05-25T22:37:28+00:00

Unlike the main MBR, we need to keep careful count when we process
logical partitions... and we weren't.

Signed-off-by: H. Peter Anvin

isohybrid: add missing isohdppx.S file

2009-05-21T23:07:44+00:00

Add a file missing from previous checkin
e462c28ffaca0132c1761736bc93cb06a41dc7a6.

Signed-off-by: H. Peter Anvin

isohybrid: support booting from partition; fix CBIOS booting

2009-05-21T22:36:50+00:00

Fix CBIOS in isohybrid mode.  Also allow an isohybrid image to be
booted from a partition.  Unfortunately this breaks compatibility
between differing versions of isohybrid and isolinux.bin.

Signed-off-by: H. Peter Anvin

Unify dependency generation: MCONFIG.embedded

2009-04-28T04:42:45+00:00

Unify dependency generation and move common rules into
MCONFIG.embedded.

Signed-off-by: H. Peter Anvin

Unify dependency generation

2009-04-28T03:58:14+00:00

Make the dependency generation more common; have a general pattern in
MCONFIG, and use it in rules (not in CFLAGS).

For NASM source, in order to stay compatible with old versions of
NASM, run NASM twice; newer versions of NASM is capable of generating
dependencies simultaneously like gcc can, but that would break
compatibility with older distros.

Signed-off-by: H. Peter Anvin

mbr: generate normal versions, force-80 versions, and ctrl-80 versions

2009-04-04T22:32:24+00:00

Produce MBR variants with normal (DL) behavior, force to drive 80
behavior, and force to 80 on Ctrl pressed behavior.

Signed-off-by: H. Peter Anvin