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| author | H. Peter Anvin <hpa@zytor.com> | 2008-10-10 15:01:19 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2008-10-10 15:01:19 -0700 |
| commit | 59c99264362d6a084f6dfff0803e582c01a1ea2b (patch) | |
| tree | e6b34446a07d7e1bf811f09566ce56a04def9b57 /doc/comboot.txt | |
| parent | cc63fb81f15e2671c7f576ffc47e7718bdb26a27 (diff) | |
| download | syslinux-59c99264362d6a084f6dfff0803e582c01a1ea2b.tar.gz | |
Add CD-ROM mode query to the COM32 interface
Report the booting mode of ISOLINUX through the COM32 interface.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'doc/comboot.txt')
| -rw-r--r-- | doc/comboot.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/comboot.txt b/doc/comboot.txt index 42078ed5..8c4a868f 100644 --- a/doc/comboot.txt +++ b/doc/comboot.txt @@ -441,6 +441,10 @@ AX=000Ah [2.00] Get Derivative-Specific Information Output: AL 33h (ISOLINUX) DL drive number CL 11 (sector size as a power of 2) [3.35] + CH mode [3.73] + 0 = El Torito + 1 = Hybrid (hard disk), CBIOS mode + 2 = Hybrid (hard disk), EBIOS mode ES:BX pointer to El Torito spec packet FS:SI pointer to initial ES:DI value [3.53] @@ -798,6 +802,9 @@ AX=0019h [3.50] Read disk [SYSLINUX, ISOLINUX, EXTLINUX] This routine reports "boot failed" (and does not return) on disk error. + Note: for ISOLINUX in hybrid mode, this call uses simulated + 2048-byte CD-ROM sector numbers. + AX=001Ah [3.50] Cleanup, shuffle and boot to flat protected mode Input: AX 001Ah |