It is now going on 5 years and this bug is still alive and well. I'm trying to migrate off of 14.04.5, and need to use tar for creating backups of folders and files to analyze for migration purposes. This bug is getting in the way of my work. I copied the live folder / files to an intermediate folder / files, and tried to use tar on that, no luck; it errors out almost immediately.
I am running as root and trying to create an archive of /etc. The error says: tar: ./.: file changed as we read it My instance is running as a VM in VBox SCP: Ubuntu 14.04.5, up-to-date TAR: tar --version says: tar (GNU tar) 1.27.1 Suggestions welcomed. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to tar in Ubuntu. https://bugs.launchpad.net/bugs/1243367 Title: tar complains about changed directory which hasn't changed Status in tar package in Ubuntu: Confirmed Bug description: I'm using Ubuntu 14.04 dev with tar 1.26+dfsg-8 and sometimes I'm seeing the message "tar: .: file changed as we read it" which seems to not be true. This bugs seems to be very difficult to reproduce and even the reproducing behavior is really annoying. As I got today on testing the chance for easy reproducing I have made a look with inotifywait what is happening: sworddragon@ubuntu:~$ mkdir tmp sworddragon@ubuntu:~$ inotifywait -mr tmp & [1] 12445 sworddragon@ubuntu:~$ Setting up watches. Beware: since -r was given, this may take a while! Watches established. ^C sworddragon@ubuntu:~$ cd tmp sworddragon@ubuntu:~/tmp$ tar --exclude "*\.tar" -zcf test.tar . tmp/ OPEN,ISDIR tmp/ CREATE test.tar tmp/ OPEN test.tar tar: .: file changed as we read it tmp/ CLOSE_NOWRITE,CLOSE,ISDIR tmp/ MODIFY test.tar tmp/ CLOSE_WRITE,CLOSE test.tar sworddragon@ubuntu:~/tmp$ rm test.tar tmp/ DELETE test.tar sworddragon@ubuntu:~/tmp$ tar --exclude "*\.tar" -cf test.tar . tmp/ CREATE test.tar tmp/ OPEN test.tar tmp/ OPEN,ISDIR tmp/ CLOSE_NOWRITE,CLOSE,ISDIR tmp/ MODIFY test.tar tmp/ CLOSE_WRITE,CLOSE test.tar sworddragon@ubuntu:~/tmp$ rm test.tar tmp/ DELETE test.tar sworddragon@ubuntu:~/tmp$ tar --exclude "*\.tar" -zcf test.tar . tmp/ OPEN,ISDIR tmp/ CREATE test.tar tmp/ OPEN test.tar tar: .: file changed as we read it tmp/ CLOSE_NOWRITE,CLOSE,ISDIR tmp/ MODIFY test.tar tmp/ CLOSE_WRITE,CLOSE test.tar sworddragon@ubuntu:~/tmp$ tar --exclude "*\.tar" -zcf test.tar . tmp/ OPEN,ISDIR tmp/ MODIFY test.tar tmp/ OPEN test.tar tmp/ CLOSE_NOWRITE,CLOSE,ISDIR tmp/ MODIFY test.tar tmp/ CLOSE_WRITE,CLOSE test.tar The bug only appears if a compression is activated (even with -J) and the tar archive doesn't already exist (tested both multiple times). The curious is if I'm closing the terminal and open it again I'm not able to reproduce this anymore. The bug will then randomly appear whenever I'm using tar. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/tar/+bug/1243367/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
