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Fix limine-install issue where it did not copy over MBR timestamp and disk signature

This commit is contained in:
mintsuki 2020-09-06 08:52:50 +02:00
parent 8760c0b3d6
commit 97394ff601
1 changed files with 14 additions and 5 deletions
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19
limine-install.c
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@ -22,10 +22,15 @@ int main(int argc, char *argv[]) {
if (argc >= 3)
sscanf(argv[2], "%" SCNu32, &stage2_sect);
// Save original timestamp
uint8_t timestamp[6];
fseek(device, 218, SEEK_SET);
fread(timestamp, 1, 6, device);
// Save the original partition table of the device
char orig_mbr[64];
fseek(device, 446, SEEK_SET);
fread(orig_mbr, 1, 64, device);
uint8_t orig_mbr[70];
fseek(device, 440, SEEK_SET);
fread(orig_mbr, 1, 70, device);
// Write the bootsector from the bootloader to the device
fseek(device, 0, SEEK_SET);
@ -39,9 +44,13 @@ int main(int argc, char *argv[]) {
fseek(device, 0x1b0, SEEK_SET);
fwrite(&stage2_sect, 1, sizeof(uint32_t), device);
// Write back timestamp
fseek(device, 218, SEEK_SET);
fwrite(timestamp, 1, 6, device);
// Write back the saved partition table to the device
fseek(device, 446, SEEK_SET);
fwrite(orig_mbr, 1, 64, device);
fseek(device, 440, SEEK_SET);
fwrite(orig_mbr, 1, 70, device);
fclose(device);