With the attached patch I was able to boot with root=PARUUID=<PARUUID>
$ cat /proc/cmdline BOOT_IMAGE=/EFI/BOOT/vmlinuz-4.3.0-8-generic boot=local earlycon=pl011,0x3ced1000 console=ttyAMA1 debug user_debug=31 loglevel=9 uefi_debug e1000e.IntMode=1 pci=pcie_bus_safe acpi=force cpuidle.off=1 usb-storage.delay_use=1 rootwait rw root=PARTUUID=81780AD9-068C-4A80-A795-56856973B8F9 rootfstype=ext4 ** Patch added: "[V2] Patch to support uppercase and lowercase uuids" https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1548120/+attachment/4578505/+files/0001-Add-support-for-uppercase-and-lowercase-uuids.patch -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to initramfs-tools in Ubuntu. https://bugs.launchpad.net/bugs/1548120 Title: [xenial][initramfs-tools] support uppercase and lowercase uuids Status in initramfs-tools package in Ubuntu: In Progress Bug description: Initramfs tools does not support uppercase UUIDs. Initramfs-tools script/functions uses blkid to determine the device name from UUID/PARTUUID but if either of those are in uppercase blkid fails to return the name. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1548120/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
