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nyx: part mgr: only copy metadata in mbr if they exist

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CTCaer authored and NaGa committed 2026-03-27 09:18:28 +01:00
1 parent 9158036902
commit 86bb96e01a
1 file changed
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nyx/nyx_gui/frontend/gui_tools_partition_manager.c
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@@ -425,6 +425,16 @@ static void _prepare_and_flash_mbr_gpt()
mbr_t mbr;
u8 random_number[16];
// Read current MBR.
sdmmc_storage_read(storage, 0, 1, &mbr);
// Copy over metadata if they exist.
if (*(u32 *)&part_info.mbr_old.bootstrap[0x80])
memcpy(&mbr.bootstrap[0x80], &part_info.mbr_old.bootstrap[0x80], 64);
if (*(u32 *)&part_info.mbr_old.bootstrap[0xE0])
memcpy(&mbr.bootstrap[0xE0], &part_info.mbr_old.bootstrap[0xE0], 208);
// Clear the first 16MB.
memset((void *)SDMMC_UPPER_BUFFER, 0, AU_ALIGN_BYTES);
s32 l4t_idx = -1;