I'm also facing this problem. My workaround is to compose VMs using Virt-Manager, Firmware = UEFI for the VM and then, refreshing the MaaS Pod.
There is a need to install ovmf sudo apt install ovmf On MaaS Pod. Then, no more Kernel Panic! Details: https://discourse.maas.io/t/maas-2-5-bionic-pod-composing-guests-kernel- panic-no-init/302 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1797581 Title: Composing a VM in MAAS with exactly 2048 MB RAM causes the VM to kernel panic Status in MAAS: Incomplete Status in linux package in Ubuntu: Confirmed Status in qemu package in Ubuntu: Confirmed Bug description: Using latest MAAS master, I'm unable to compose a VM over the UI successfully when composed with 2048 MB of RAM. By that I mean that the VM is created, but it fails with a kernel panic. To manage notifications about this bug go to: https://bugs.launchpad.net/maas/+bug/1797581/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp