diff options
| -rw-r--r-- | block/partitions/efi.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/block/partitions/efi.c b/block/partitions/efi.c index 1eb09ee5311b..a8287b49d062 100644 --- a/block/partitions/efi.c +++ b/block/partitions/efi.c | |||
| @@ -222,11 +222,16 @@ check_hybrid: | |||
| 222 | * the disk size. | 222 | * the disk size. |
| 223 | * | 223 | * |
| 224 | * Hybrid MBRs do not necessarily comply with this. | 224 | * Hybrid MBRs do not necessarily comply with this. |
| 225 | * | ||
| 226 | * Consider a bad value here to be a warning to support dd'ing | ||
| 227 | * an image from a smaller disk to a larger disk. | ||
| 225 | */ | 228 | */ |
| 226 | if (ret == GPT_MBR_PROTECTIVE) { | 229 | if (ret == GPT_MBR_PROTECTIVE) { |
| 227 | sz = le32_to_cpu(mbr->partition_record[part].size_in_lba); | 230 | sz = le32_to_cpu(mbr->partition_record[part].size_in_lba); |
| 228 | if (sz != (uint32_t) total_sectors - 1 && sz != 0xFFFFFFFF) | 231 | if (sz != (uint32_t) total_sectors - 1 && sz != 0xFFFFFFFF) |
| 229 | ret = 0; | 232 | pr_debug("GPT: mbr size in lba (%u) different than whole disk (%u).\n", |
| 233 | sz, min_t(uint32_t, | ||
| 234 | total_sectors - 1, 0xFFFFFFFF)); | ||
| 230 | } | 235 | } |
| 231 | done: | 236 | done: |
| 232 | return ret; | 237 | return ret; |
