In https://launchpad.net/ubuntu/+source/initramfs-tools/0.133ubuntu3 in eoan+ manual chzdev -e got added to activate qeth devices, if they have been specified in the ip= command, i.e. if enc300 is the device in the ip= command.
This has not been backported to bionic. To boot without specifying the device name, i.e. with just mac address one will need automatic chzdev device configuration via /sys/firmware/sclp_sd/config/data that was added in s390-tools v2.5.0 fist available in cosmic+ but that also needs kernel support for sclp_sd driver to exist, i.e first added in v4.16. Thus if one wants this support one will need to backport 1) initramfs-tools changes 2) s390-tools changes 3) linux sclp_sd driver from linux-hwe to GA ** Also affects: initramfs-tools (Ubuntu) Importance: Undecided Status: New ** Also affects: s390-tools (Ubuntu) Importance: Undecided Status: New ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Summary changed: - Unable to boot Ubuntu 18.04 and older on an IBM Z DPM Partition + Unable to netboot Ubuntu 18.04 and older on an IBM Z DPM Partition - no manual nor automatic qeth device configuration -- 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/1918970 Title: Unable to netboot Ubuntu 18.04 and older on an IBM Z DPM Partition - no manual nor automatic qeth device configuration Status in MAAS: New Status in Ubuntu on IBM z Systems: New Status in initramfs-tools package in Ubuntu: New Status in linux package in Ubuntu: New Status in s390-tools package in Ubuntu: New Bug description: I tried to deploy Ubuntu 18.04 with the GA-18.04 kernel on an IBM Z14 DPM Partition. The initrd fails to bring up network and thus fails to boot in MAAS. I haven't tried older versions of Ubuntu but suspect they also have the same bug. mount: mounting /dev on /root/dev failed: No such file or directory done. mount: mounting /run on /root/run failed: No such file or directory run-init: current directory on the same filesystem as the root: error 0 Target filesystem doesn't have requested /sbin/init. run-init: current directory on the same filesystem as the root: error 0 run-init: current directory on the same filesystem as the root: error 0 run-init: current directory on the same filesystem as the root: error 0 run-init: current directory on the same filesystem as the root: error 0 run-init: current directory on the same filesystem as the root: error 0 chvt: can't open console No init found. Try passing init= bootarg. Couldn't get a file descriptor referring to the console /scripts/panic/console_setup: line 133: can't create /dev/tty1: No such device o r address /scripts/panic/console_setup: line 1: can't open /dev/tty1: No such device or ad dress /scripts/panic/console_setup: line 1: can't create /dev/tty2: No such device or address /scripts/panic/console_setup: line 1: can't open /dev/tty2: No such device or ad dress /scripts/panic/console_setup: line 1: can't create /dev/tty3: No such device or address /scripts/panic/console_setup: line 1: can't open /dev/tty3: No such device or ad dress /scripts/panic/console_setup: line 1: can't create /dev/tty4: No such device or address /scripts/panic/console_setup: line 1: can't open /dev/tty4: No such device or ad dress /scripts/panic/console_setup: line 1: can't create /dev/tty5: No such device or address /scripts/panic/console_setup: line 1: can't open /dev/tty5: No such device or ad dress /scripts/panic/console_setup: line 1: can't create /dev/tty6: No such device or address /scripts/panic/console_setup: line 1: can't open /dev/tty6: No such device or ad dress BusyBox v1.27.2 (Ubuntu 1:1.27.2-2ubuntu3.3) built-in shell (ash) Enter 'help' for a list of built-in commands. (initramfs) [6n [ 78.114530] random: crng init done [ 78.114538] random: 7 urandom warning(s) missed due to ratelimiting To manage notifications about this bug go to: https://bugs.launchpad.net/maas/+bug/1918970/+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