Il 19/08/2012 00:02, ronnie sahlberg ha scritto: > Neither of them work, basically because in > block.c:find_image_format() > > if bs->sg is not set in > > if (bs->sg || !bdrv_is_inserted(bs)) { > > then we continue to > > ret = bdrv_pread(bs, 0, buf, sizeof(buf)); > > which fails with an error. > So this patch is basically to prevent find_image_format() from trying > to read from a blank disk. > > Maybe there is a better way to do this?
Yeah, I think in this case find_image_format should just use raw. Paolo