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-rw-r--r--scripts/lib/wic/imager/direct.py5
1 files changed, 3 insertions, 2 deletions
diff --git a/scripts/lib/wic/imager/direct.py b/scripts/lib/wic/imager/direct.py
index edf5e5d221..2bedef08d6 100644
--- a/scripts/lib/wic/imager/direct.py
+++ b/scripts/lib/wic/imager/direct.py
@@ -56,8 +56,9 @@ class DiskImage():
56 if self.created: 56 if self.created:
57 return 57 return
58 # create sparse disk image 58 # create sparse disk image
59 cmd = "truncate %s -s %s" % (self.device, self.size) 59 with open(self.device, 'w') as sparse:
60 exec_cmd(cmd) 60 os.ftruncate(sparse.fileno(), self.size)
61
61 self.created = True 62 self.created = True
62 63
63class DirectImageCreator(BaseImageCreator): 64class DirectImageCreator(BaseImageCreator):