Thank you @ianchanning for the recovery notes through the portal. I'll also add in a few links that might help. For users looking for general recovery steps : https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass#Recovery For users looking how to mitigate this before rebooting: https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass#Known_issues
@hggdh2 Thank you for the informatoin, I am working with rcj on reproducing this issue. I was able to reproduce this issue with the following steps: Launch an Ubuntu VM in Azure az vm create --name grub-test --resource-group <resource-group-name> --location southcentralus --image Canonical:UbuntuServer:18.04-LTS:18.04.201906271 --size Standard_D2s_v3 --admin-username ubuntu --ssh-key-value <path-to-ssh-file> Apt update and install grub: sudo apt update DEBIAN_FRONTEND=noninteractive sudo apt install grub2-common You will see a prompt indicating that grub has failed to install. Here's a pastebin of relevant disk information that I was able to gather before I installed grub. In #ubuntu-release on FreeNode there was talk of NVME devices exacerbating this bug, but there are no nvme devices on this instance (as checked by ls /dev/nvme*) https://pastebin.ubuntu.com/p/jD7kgDVtxk/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1889509 Title: grub boot error : "symbol 'grub_calloc' not found To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1889509/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
