Comment 0 for bug 1798369

When trying to reinstall an existing Ubuntu cosmic installation using latest 18.10 desktop images, the install fails around the end of the installation with an "Error restoring installed applications". Looking at the syslog such a traceback can be seen:

apt_pkg.Error: E:Could not get lock /target/var/cache/apt/archives/lock - open (11: Resource temporarily unavailable), E:Unable to lock directory /target/var/cache/apt/archives/

After reproducing this on a live session, after chrooting into /target indeed any apt-get install operations result in the same lock-file error. The whole syslog of the reinstall attached to the bug.

Test case:
 * Download latest cosmic image
 * Install cosmic on the whole disk (can be on a VM)
 * (optional) Boot into the system and leave a file in the home directory (to leave a trace, just in case)
 * Reboot and install cosmic using the first option in ubiquity: Reinstall Ubuntu
 * Finish configuration

The install will fail around the end of the installation process.