Of the Open Firmware dumps that I've created while working on https://forums.macrumors.com/thread...l-work-in-a-beige-power-macintosh-g3.2303689/ and https://68kmla.org/bb/index.php?thr...-hack-thread-part-2.38360/page-12#post-467825 , only the G5 Quad and PowerBook G4 DLSD seem to have gpt support. These are dated September 2005 or later.
Code that checks the gpt header:
List of ROMs:
See attachment of #60 for latest.
Code:
cd "/Volumes/Work/Open Firmware and Name Registry/ROM PowerPC Mac"
grep -R "EFI PART" --include Part2.of .
./ROM G5 Quad/Dump/Part2.of: " EFI PART" \ [012]
./ROM PowerBook G4 DLSD/Dump/Part2.of: " EFI PART" \ [012]Code that checks the gpt header:
Code:
: gpt-header-valid? \ (1e85) [0b6 0b7]
block0 \ [1e69]
1 \ [0a6]
1 \ [0a6]
"read-blocks" \ [1355]
$call-parent \ [209]
0= \ [034]
if \ (0x2c) [014]
." DISK-LABEL: read of block1 failed" \ [012 090]
cr \ [092]
false \ [1208]
else \ (0x3c) [013 0b2]
block0 \ [1e69]
" EFI PART" \ [012]
comp \ [07a]
0= \ [034]
block0 \ [1e69]
>gpt.hdr_size \ [1e7c]
4c@-le \ [1086]
gpt-header-resv-sz \ [1e81]
>= \ [042]
and \ [023]
block0 \ [1e69]
dup \ [047]
>gpt.hdr_size \ [1e7c]
4c@-le \ [1086]
crc32 \ [1e84]
and \ [023]
block0 \ [1e69]
>gpt.hdr_entsz \ [1e7e]
4c@-le \ [1086]
gpt-entry-resv-sz \ [1e82]
>= \ [042]
and \ [023]
then \ [0b2]
dup \ [047]
false \ [1208]
= \ [03c]
if \ (0x38) [014]
block0 \ [1e69]
0 \ [0a5]
1 \ [0a6]
"read-blocks" \ [1355]
$call-parent \ [209]
0= \ [034]
if \ (0x2a) [014]
." DISK-LABEL: re-read of block0 failed" \ [012 090]
cr \ [092]
then \ [0b2]
then \ [0b2]
; \ [0c2]List of ROMs:
See attachment of #60 for latest.
Last edited:
