** Description changed: === Begin SRU Template === [Impact] Growing the root partition would fail in either of two cases: a.) if the device /dev/root existed b.) the kernel command line had upper case letters in PARTUUID=<value> [Test Case] get-proposed-image is https://git.launchpad.net/~smoser/cloud-init/+git/sru-info/tree/bin/get-proposed-image It downloads a cloud image of a given release, and then creates a -proposed image with cloud-init upgraded. 1.) get a (proposed) disk image image. and convert it to raw so you can read the partuuid with sfdisk (get-proposed-image does this, if not, 'qemu-img convert -O raw orig.img orig.raw') ./get-proposed-image 2.) get the partition uuid of the first partition $ raw=yakkety-server-cloudimg-amd64-proposed.raw $ ptuuid=$(sfdisk --part-uuid $raw 1) 3.) create a nocloud seed $ printf "%s\n%s\n%s\n%s\n" "#cloud-config" "password: passw0rd" \ "chpasswd: {expire: False}" "ssh_pwauth: True" > my-user-data $ echo "instance-id: $(uuidgen || echo i-abcdefg)" > my-meta-data $ cloud-localds my-seed.img my-user-data my-meta-data 4.) extract kernel from inside the image $ sudo mount-image-callback $raw -- mchroot sh -xc 'cat /boot/vmlinu?-*' > kernel 5.) boot instance with disk backed by the raw disk above. $ qemu-img create -f qcow2 -b $raw disk.img 10G $ qemu-system-x86_64 -enable-kvm \ -drive file=disk.img,if=ide,index=0 -drive file=my-seed.img,if=ide \ -net nic -net user,hostfwd=tcp::2222-:22 \ -snapshot -m 768 -nographic -echr 0x05 \ -kernel kernel \ -append "root=PARTUUID=${ptuuid} ro console=tty1 console=ttyS0" 6.) log in, verify / has been resized. log in with 'ubuntu' and password 'passw0rd' $ df -h / Filesystem Size Used Avail Use% Mounted on /dev/root 9.6G 1009M 8.6G 11% / [Regression Potential] The regression path is really the case where devent2dev finds /dev/root and /dev/root exists. In that case, we now possibly return a /dev/<device> path when previously it would have returned /dev/root. [Other Info] The qemu-system-x86 command above uses ide devices. This is because the ide device emulated by qemu is built into the -generic kernel, whilei the more common virtio-block or virtio-scsi are not. If you attach those device types, it will fail with 'cant find root'. === End SRU Template === When trying to verify I found a couple cases where this still does not work. Related bugs: * bug 1677376: growing partitions does not work when booted without initramfs + * bug 1685291: RFC: virtio and virtio-scsi should be built in
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1684869 Title: growing root partition does not always work with root=PARTUUID= To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-init/+bug/1684869/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
