Just reproduced it on my env (where things used to work) after updating from MAAS 2.5.0~rc2 to 2.5.2.
https://paste.ubuntu.com/p/CY834ZGnvS/ [ 15.458594] VFS: Cannot open root device "squash:http://10.10.101.2:5248/images/ubuntu/amd64/generic/bion" or unknown-block(0,0): error -6 tree /var/lib/maas/boot-resources/ /var/lib/maas/boot-resources/ # ... ├── current -> snapshot-20190419-115735 └── snapshot-20190419-115735 Which binaries do I need to have uploaded? sha256sum /var/lib/maas/boot-resources/snapshot-20190419-115735/ubuntu/amd64/ga-18.04/bionic/daily/* 69ca457a119fe309d315972ca2756a17bd9bc55bc98f2bea5542566a7f41b08f /var/lib/maas/boot-resources/snapshot-20190419-115735/ubuntu/amd64/ga-18.04/bionic/daily/boot-initrd 166853ad9342fdf5be17988e5e18cbf0458ab0da94f18f5e331b3581e3610b97 /var/lib/maas/boot-resources/snapshot-20190419-115735/ubuntu/amd64/ga-18.04/bionic/daily/boot-kernel 1e7841d7fca13ef27c2742cfc2c3a2d59491a74c268b705a02eb4ee8f673d150 /var/lib/maas/boot-resources/snapshot-20190419-115735/ubuntu/amd64/ga-18.04/bionic/daily/squashfs ii seabios 1.10.2-1ubuntu1 all Legacy BIOS implementation ii ipxe-qemu 1.0.0+git-20180124.fbe8c52d-0ubuntu2.2 all PXE boot firmware - ROM images for qemu ii qemu-kvm 1:2.11+dfsg-1ubuntu7.12 amd64 QEMU Full virtualization on x86 hardware ii libvirt0:amd64 4.0.0-1ubuntu8.8 amd64 library for interfacing with different virtualization systems -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1797581 Title: Composing a VM in MAAS with exactly 2048 MB RAM causes the VM to kernel panic To manage notifications about this bug go to: https://bugs.launchpad.net/maas/+bug/1797581/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs