docs/data/reusables/release-notes/2022-09-hotpatch-issue.md

Hotpatch upgrades to GitHub Enterprise Server {% ifversion ghes = 3.6 %}3.6.2{% endif %} may fail. Upgrades with the full .pkg are unaffected. If the upgrade fails for your instance, workaround this issue by connecting to the administrative shell (ssh) and running the following non-interactive command:

echo "grub-pc grub-pc/install_devices_empty boolean true" | sudo debconf-set-selections

If you're unable to upgrade, or if you need further assistance, contact GitHub Support. For more information, see "AUTOTITLE." [Updated: 2022-10-14]