Hello,
qemu fails when the disk image file is writable but on
a readonly filesystem (so it is not really writable).
The patch below fixes this. It also declares a local
function "static" (maybe this part of the patch is a
matter of taste).
Regards,
Stefan
--- block.c 19 Aug 2006 11:45:59 -0000 1.34
+++ block.c 21 Aug 2006 16:46:21 -0000
@@ -110,7 +110,7 @@
}
-void bdrv_register(BlockDriver *bdrv)
+static void bdrv_register(BlockDriver *bdrv)
{
if (!bdrv->bdrv_aio_read) {
/* add AIO emulation layer */
@@ -359,7 +359,7 @@
else
open_flags = flags & ~(BDRV_O_FILE | BDRV_O_SNAPSHOT);
ret = drv->bdrv_open(bs, filename, open_flags);
- if (ret == -EACCES && !(flags & BDRV_O_FILE)) {
+ if ((ret == -EACCES || ret == -EROFS) && !(flags & BDRV_O_FILE)) {
ret = drv->bdrv_open(bs, filename, BDRV_O_RDONLY);
bs->read_only = 1;
}
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