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Attempt to implement old MBR partition record copying in prototype LimineHDD install script.

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This commit is contained in:
TomAwezome 2022-10-10 20:56:32 -04:00
parent 7e8ed65677
commit 7486ab0b0d
1 changed files with 10 additions and 4 deletions
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14
src/Home/LimineHDD.ZC
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@ -1,4 +1,3 @@
#include "/Boot/Limine-HDD.HH"
class CLimineStage2Header
@ -20,8 +19,15 @@ limine_stage2->size_a = limine_stage2->size_b = limine_stage2_size_aligned / 2;
limine_stage2->location_a = BLK_SIZE;
limine_stage2->location_b = BLK_SIZE + limine_stage2->size_a;
ClassRep(limine_stage2);
CBlkDev *bd = Letter2BlkDev('c');
CMasterBoot old_mbr, *new_mbr = limine;
AHCIAtaBlksWrite(bd, limine, 0, BLK_SIZE + limine_stage2_size_aligned);
BlkDevLock(bd);
AHCIAtaBlksRead(bd, &old_mbr, 0, 1); // read old MBR currently on disk
MemCopy(new_mbr->p, old_mbr.p, sizeof(CMasterBoot.p)); // copy old MBR partition table to new Limine MBR
AHCIAtaBlksWrite(bd, limine, 0, 1 + limine_stage2_size_aligned); // write Limine to MBR and post-MBR gap
BlkDevUnlock(bd);