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@ -150,9 +150,12 @@ static int ventoy_vhd_patch_path(char *vhdpath, ventoy_patch_vhd *patch1, ventoy
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static int ventoy_vhd_read_parttbl(const char *filename, ventoy_gpt_info *gpt, int *index)
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{
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int i;
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int ret = 1;
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grub_uint64_t start;
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grub_file_t file = NULL;
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grub_disk_t disk = NULL;
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grub_uint8_t zeroguid[16] = {0};
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file = grub_file_open(filename, VENTOY_FILE_TYPE);
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if (!file)
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@ -165,10 +168,39 @@ static int ventoy_vhd_read_parttbl(const char *filename, ventoy_gpt_info *gpt, i
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{
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goto end;
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}
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*index = file->device->disk->partition->index;
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grub_disk_read(disk, 0, 0, sizeof(ventoy_gpt_info), gpt);
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start = file->device->disk->partition->start;
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if (grub_memcmp(gpt->Head.Signature, "EFI PART", 8) == 0)
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{
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debug("GPT part start: %llu\n", (ulonglong)start);
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for (i = 0; i < 128; i++)
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{
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if (grub_memcmp(gpt->PartTbl[i].PartGuid, zeroguid, 16))
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{
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if (start == gpt->PartTbl[i].StartLBA)
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{
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*index = i;
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break;
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}
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}
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}
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}
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else
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{
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debug("MBR part start: %llu\n", (ulonglong)start);
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for (i = 0; i < 4; i++)
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{
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if ((grub_uint32_t)start == gpt->MBR.PartTbl[i].StartSectorId)
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{
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*index = i;
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break;
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}
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}
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}
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ret = 0;
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end:
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