Some file systems don't support fetching the block size (notably the file system Docker uses for containers), so if iotctl() fail, try to use failback via os.stat() to get block size.
Signed-off-by: Kalle lampila <[email protected]> --- scripts/lib/wic/filemap.py | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/scripts/lib/wic/filemap.py b/scripts/lib/wic/filemap.py index a3919fbcad..c53147c2f1 100644 --- a/scripts/lib/wic/filemap.py +++ b/scripts/lib/wic/filemap.py @@ -34,9 +34,11 @@ def get_block_size(file_obj): # the FIGETBSZ ioctl (number 2). try: binary_data = fcntl.ioctl(file_obj, 2, struct.pack('I', 0)) + bsize = struct.unpack('I', binary_data)[0] except OSError: - raise IOError("Unable to determine block size") - bsize = struct.unpack('I', binary_data)[0] + bsize = None + + # If ioctl causes OSError or give bsize to zero failback to os.fstat if not bsize: import os stat = os.fstat(file_obj.fileno()) -- 2.17.1 -- _______________________________________________ Openembedded-core mailing list [email protected] http://lists.openembedded.org/mailman/listinfo/openembedded-core
