Hi,
ubd_file_size() was recently patched so that it fails if an image is
readonly. Patch attached.
--- a/arch/um/drivers/ubd_kern.c 2012-06-01 10:18:44.000000000 +0300
+++ b/arch/um/drivers/ubd_kern.c 2012-06-07 03:41:44.790899305 +0300
@@ -514,7 +514,7 @@
goto out;
}
- fd = os_open_file(ubd_dev->file, global_openflags, 0);
+ fd = os_open_file(ubd_dev->file, of_read(OPENFLAGS()), 0);
if (fd < 0)
return fd;
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