At the moment I am running fedora-27 and I would like to upgrade it to fedeora-30. I followed the steps described in fedora wiki.

  1. sudo dnf upgrade --refresh
  2. sudo dnf install dnf-plugin-system-upgrade
  3. sudo dnf system-upgrade download --refresh --best --allowerasing --releasever=28
  4. sudo dnf system-upgrade reboot

Note that I tried to gradually upgrade to the next release instead of upgrading directly to fedora-30, since from previous experience (i.e. when wanting to upgrade from fedora-24 to fedora-27) I've found out that it was smoother.

After performing the dnf system-upgrade reboot command, my laptop rebooted, the upgrade screen when on and eventually I was booted again in fedora-27 while there is not fedora-28 option on the boot menu.

These are the steps that I followed to understand what's going wrong :

  1. I had a look after @DavidYockey 's suggestion to /boot in case there is something related to f28 but there is nothing there as well. (https://i.stack.imgur.com/Lgx33.png). I also checked the /boot/grub2/grub.cfg file and there isn't any entry related to f28 (https://pastebin.com/Z81uJ0gr). So I guess that this means, it's not realated to grub.

  2. I checked with journalctl -r -p err but I couldn't see something helpful there, either apart from the following entry which doesn't specify why it failed to upgrade. (https://pastebin.com/dnaDHcAQ)

    systemd1: Failed to start System Upgrade using DNF.

  3. I then, had a look at the dnf.log file, which can be found here. I saw some critical errors there, but I am not sure what to do. For example

    2019-06-28T05:43:26Z CRITICAL Error opening file for checksum: /var/lib/dnf/system-upgrade/fedora-f21308f6293b3270/packages/compat-libicu57- 57.1-2.fc28.x86_64.rpm

    2019-06-28T05:43:26Z CRITICAL Package "compat-libicu57-57.1-2.fc28.x86_64" from repository "fedora" has incorrect checksum

  4. I run sudo dnf repolist all and it seems that some repositories are disabled enter image description here I am wondering how can I enable them; maybe I can't.

  5. I enabled the disabled repositories by editing the .repo files in /etc/yum.repos.d and changing the value of enable to 1 in the cases where it was 0 and then repeated sudo dnf upgrade --refresh, sudo dnf system-upgrade download --refresh --best --allowerasing --releasever=28 and sudo dnf system-upgrade reboot. Still the dnf.log gives me the same critical error seen in 3.

Any idea what to do next in order to eventually upgrade to fedora-30?

  • Just a thought... Maybe an entry for F28 just didn't get added to grub. Are there F28 files in /boot? Jun 27, 2019 at 20:30
  • You're probably aware of this, but for the benefit of anyone else reading... Upgrading from an end-of-life release, like F27, "is a less-tested and less-supported operation. You can try to upgrade" a couple of ways as described. (fedoraproject.org/wiki/…) To me, it reads like there are no guarantees. Jun 27, 2019 at 20:36
  • @DavidYockey : Thank you very much for your comment. There is nothing in /boot or /boot/grub2 related to f28 ( imgur.com/e192pbx ). There is also nothing in the /boot/grub2/grub.cfg file. So this means that it's not related to booting, which is an information! Thanks! Any idea on what might be the issue?
    – Thanos
    Jun 28, 2019 at 5:19
  • I'm a bit wary of suggesting too much and making things worse because I lack experience fixing broken version upgrades (I just restore from a clone and restart if something goes wrong). But a thought did cross my mind... Maybe dnf's mucked up, and maybe running dnf clean all would help? Jun 28, 2019 at 14:05
  • @DavidYockey : I have found a solution. It seems that the dnf clean all didn't help. The problem was a corrupted file (see my answer)!
    – Thanos
    Jul 1, 2019 at 6:48

1 Answer 1


The problem was the compat-libicu57- 57.1-2.fc28.x86_64.rpm file which was saved in


The critical error that was encountered was referring to an incorrect checksum. To solve the issue the following steps were followed

  1. The /var/lib/dnf/system-upgrade/fedora-f21308f6293b3270/packages/compat-libicu57- 57.1-2.fc28.x86_64.rpm file was deleted
  2. I downloaded the compat-libicu57- 57.1-2.fc28.x86_64.rpm file from rmpfind.net
  3. I moved the downloaded .rpm file to /var/lib/dnf/system-upgrade/fedora-f21308f6293b3270/packages/
  4. I then run sudo dnf system-upgrade reboot and the system was upgraded to f28

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