Thank you for taking the time to report this bug and helping to make Ubuntu better.
The recommended minimum disk space for a Ubuntu Desktop install is 25GB, having been so since Ubuntu 17.10 (https://help.ubuntu.com/community/Installation/SystemRequirements). Your install ran out of space, as the user/operator did not provide enough disk space. Jul 4 16:03:15 ubuntu in-target: Error writing to output file - write (28: No space left on device) [IP: 43.255.166.254 80] Jul 4 16:04:04 ubuntu ubiquity: Creating config file /etc/papersize with new version Jul 4 16:04:09 ubuntu ubiquity: debconf: DbDriver "templatedb": could not write /var/cache/debconf/templates.dat-new: No space left on device Jul 4 16:04:09 ubuntu ubiquity: Warning: unable to close filehandle $fh properly: No space left on device at /usr/share/perl5/Debconf/DbDriver.pm line 55. Jul 4 16:04:10 ubuntu ubiquity: sed: couldn't flush stdout: No space left on device Jul 4 16:04:10 ubuntu ubiquity: dpkg-divert: error: unable to flush new file '/var/lib/dpkg/diversions-new': No space left on device Jul 4 16:04:10 ubuntu /plugininstall.py: log-output -t ubiquity chroot /target dpkg-divert --package ubiquity --rename --quiet --remove /usr/sbin/update-initramfs Jul 4 16:04:10 ubuntu ubiquity: update-initramfs: Generating /boot/initrd.img-5.8.0-43-generic Jul 4 16:04:10 ubuntu ubiquity: mktemp: failed to create directory via template ‘/var/tmp/mkinitramfs_XXXXXX’: No space left on device I've marked this invalid; as the minimum space required for a desktop install was not provided. If you believe I'm in error, please leave a comment stating why and the status can be returned to "New". ** Changed in: ubiquity (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1934601 Title: installer crash to usb To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1934601/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs