I have found the cause of the problem, which is because tar does not exist in the working directory. I wonder if there are requirements on the base image when building from the base image. Thank you. 发自我的企业微信 ----------回复的邮件信息---------- 任亮<renliang at uniontech.com> 在2023-03-23 周四 15:01写道: Hi We are using diskimage-builder to make a custom image, There is a problem in extract_image, The question is chroot: failed to run command 'bin/tar': No such file or directory, I found the /bin/tar file in the working directory /tmp/ tmp.00yldwe1xt. But errors are still being reported. It's not clear if this is a custom image problem, There are also requirements for custom images. 发自我的企业微信 -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.openstack.org/pipermail/openstack-discuss/attachments/20230323/8de33e3f/attachment-0001.htm>