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-rw-r--r--block/vvfat.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/block/vvfat.c b/block/vvfat.c
index eb266b5aa6..36b4be9db2 100644
--- a/block/vvfat.c
+++ b/block/vvfat.c
@@ -71,6 +71,12 @@ void nonono(const char* file, int line, const char* msg) {
#endif
+/* bootsector OEM name. see related compatibility problems at:
+ * https://jdebp.eu/FGA/volume-boot-block-oem-name-field.html
+ * http://seasip.info/Misc/oemid.html
+ */
+#define BOOTSECTOR_OEM_NAME "MSWIN4.1"
+
#define DIR_DELETED 0xe5
#define DIR_KANJI DIR_DELETED
#define DIR_KANJI_FAKE 0x05
@@ -1028,7 +1034,7 @@ static int init_directories(BDRVVVFATState* s,
bootsector->jump[0]=0xeb;
bootsector->jump[1]=0x3e;
bootsector->jump[2]=0x90;
- memcpy(bootsector->name, "MSWIN4.1", 8);
+ memcpy(bootsector->name, BOOTSECTOR_OEM_NAME, 8);
bootsector->sector_size=cpu_to_le16(0x200);
bootsector->sectors_per_cluster=s->sectors_per_cluster;
bootsector->reserved_sectors=cpu_to_le16(1);