Comment 2 for bug 1924967

when i use the latest code, the same problem still exists.

the latest code support python3,so i installed python3.

this is a privileged container,becasue i use "docekr run --privileged=true".

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2021-04-19 09:15:40.563 | Calculating image size (this may take a minute)...
2021-04-19 09:15:41.850 | INFO diskimage_builder.block_device.blockdevice [-] Wrote final block device config to [/tmp/dib_build.RComQZ3I/states/block-device/config.json]
2021-04-19 09:15:42.631 | INFO diskimage_builder.block_device.blockdevice [-] create() called
2021-04-19 09:15:42.633 | INFO diskimage_builder.block_device.level0.localloop [-] Create image file [/tmp/dib_image.uF2GpEg8/image0.raw]
2021-04-19 09:15:42.634 | INFO diskimage_builder.block_device.level0.localloop [-] loopdev attach
2021-04-19 09:15:42.634 | INFO diskimage_builder.block_device.utils [-] Calling [sudo losetup --show -f /tmp/dib_image.uF2GpEg8/image0.raw]
2021-04-19 09:15:42.659 | ERROR diskimage_builder.block_device.blockdevice [-] Create failed; rollback initiated
2021-04-19 09:15:42.659 | Traceback (most recent call last):
2021-04-19 09:15:42.659 | File "/usr/local/lib/python3.6/site-packages/diskimage_builder/block_device/blockdevice.py", line 407, in cmd_create
2021-04-19 09:15:42.659 | node.create()
2021-04-19 09:15:42.659 | File "/usr/local/lib/python3.6/site-packages/diskimage_builder/block_device/level0/localloop.py", line 101, in create
2021-04-19 09:15:42.659 | block_device = loopdev_attach(self.filename)
2021-04-19 09:15:42.659 | File "/usr/local/lib/python3.6/site-packages/diskimage_builder/block_device/level0/localloop.py", line 44, in loopdev_attach
2021-04-19 09:15:42.659 | block_device = exec_sudo(["losetup", "--show", "-f", filename])
2021-04-19 09:15:42.659 | File "/usr/local/lib/python3.6/site-packages/diskimage_builder/block_device/utils.py", line 143, in exec_sudo
2021-04-19 09:15:42.659 | raise e
2021-04-19 09:15:42.659 | diskimage_builder.block_device.exception.BlockDeviceSetupException: exec_sudo failed
2021-04-19 09:15:42.659 | INFO diskimage_builder.block_device.level0.localloop [-] Remove image file [/tmp/dib_image.uF2GpEg8/image0.raw]
2021-04-19 09:15:42.663 | ERROR diskimage_builder.block_device.blockdevice [-] Rollback complete, exiting
2021-04-19 09:15:42.664 | Traceback (most recent call last):
2021-04-19 09:15:42.664 | File "/usr/local/lib/python3.6/site-packages/diskimage_builder/lib/dib-block-device.py", line 7, in <module>
2021-04-19 09:15:42.664 | sys.exit(main())
2021-04-19 09:15:42.664 | File "/usr/local/lib/python3.6/site-packages/diskimage_builder/block_device/cmd.py", line 120, in main
2021-04-19 09:15:42.664 | return bdc.main()
2021-04-19 09:15:42.664 | File "/usr/local/lib/python3.6/site-packages/diskimage_builder/block_device/cmd.py", line 115, in main
2021-04-19 09:15:42.665 | self.args.func()
2021-04-19 09:15:42.665 | File "/usr/local/lib/python3.6/site-packages/diskimage_builder/block_device/cmd.py", line 36, in cmd_create
2021-04-19 09:15:42.665 | self.bd.cmd_create()
2021-04-19 09:15:42.665 | File "/usr/local/lib/python3.6/site-packages/diskimage_builder/block_device/blockdevice.py", line 407, in cmd_create
2021-04-19 09:15:42.665 | node.create()
2021-04-19 09:15:42.665 | File "/usr/local/lib/python3.6/site-packages/diskimage_builder/block_device/level0/localloop.py", line 101, in create
2021-04-19 09:15:42.665 | block_device = loopdev_attach(self.filename)
2021-04-19 09:15:42.665 | File "/usr/local/lib/python3.6/site-packages/diskimage_builder/block_device/level0/localloop.py", line 44, in loopdev_attach
2021-04-19 09:15:42.665 | block_device = exec_sudo(["losetup", "--show", "-f", filename])
2021-04-19 09:15:42.665 | File "/usr/local/lib/python3.6/site-packages/diskimage_builder/block_device/utils.py", line 143, in exec_sudo
2021-04-19 09:15:42.665 | raise e
2021-04-19 09:15:42.665 | diskimage_builder.block_device.exception.BlockDeviceSetupException: exec_sudo failed
2021-04-19 09:15:42.740 | *** /tmp/dib_build.RComQZ3I/mnt is not a directory
2021-04-19 09:15:43.415 | INFO diskimage_builder.block_device.blockdevice [-] State already cleaned - no way to do anything here