------- Comment From niklas.schne...@ibm.com 2020-06-02 10:15 EDT------- "make install" also triggers initramfs creation as does manual invocation of the installkernel script. In fact both even trigger boot loader update/install.
This is the output: $ sudo make install sh -x ./arch/s390/boot/install.sh 5.4.27 arch/s390/boot/bzImage \ System.map "/boot" + [ -x /root/bin/installkernel ] + [ -x /sbin/installkernel ] + exec /sbin/installkernel 5.4.27 arch/s390/boot/bzImage System.map /boot run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 5.4.27 /boot/vmlinuz-5.4.27 run-parts: executing /etc/kernel/postinst.d/initramfs-tools 5.4.27 /boot/vmlinuz-5.4.27 update-initramfs: Generating /boot/initrd.img-5.4.27 Using config file '/etc/zipl.conf' Run /lib/s390-tools/zipl_helper.device-mapper /boot Building bootmap in '/boot' Building menu 'menu' Adding #1: IPL section 'ubuntu' (default) Adding #2: IPL section 'old' Preparing boot device: dm-0. Done. run-parts: executing /etc/kernel/postinst.d/unattended-upgrades 5.4.27 /boot/vmlinuz-5.4.27 run-parts: executing /etc/kernel/postinst.d/update-notifier 5.4.27 /boot/vmlinuz-5.4.27 run-parts: executing /etc/kernel/postinst.d/zz-zipl 5.4.27 /boot/vmlinuz-5.4.27 Using config file '/etc/zipl.conf' Run /lib/s390-tools/zipl_helper.device-mapper /boot Building bootmap in '/boot' Building menu 'menu' Adding #1: IPL section 'ubuntu' (default) Adding #2: IPL section 'old' Preparing boot device: dm-0. Done. I did already have /etc/kernel-img.conf with the following content: # Kernel image management overrides # See kernel-img.conf(5) for details do_symlinks = yes do_bootloader = yes do_initrd = yes link_in_boot = yes Could this depend on the legacy installer? Our automatically installed systems are currently all installed with it and I also used that for this test LPAR (that has PCI Physical Functions) since the legacy installer allowed a much nicer manual network configuration using the HMC console. Sadly that's also why I can't currently test on another fresh install as our automatic installation system is currently being changed to support the new installer and I couldn't get the previous workaround to work today. I'm not knowledgeable enough to give a good opinion on initrd less boot but I would suspect that the deployments at our customers are much more varied than the average cloud so I would be hesitant about defaulting to it. Also in my experience s390 boot times are already quite good. Afaik with our defconfig a lot of us developers regularly boot without initrd or even any modules, so supporting it shouldn't be a problem. As the defconfig doesn't include the drivers for PCI devices into the Kernel I usually use both modules and an initrd, which might be why I stumbled over this first. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to debianutils in Ubuntu. https://bugs.launchpad.net/bugs/1877088 Title: [UBUNTU 20.04] installkernel script does not symlink /boot/initrd.img which is required with the default zipl.conf Status in Ubuntu on IBM z Systems: Incomplete Status in debianutils package in Ubuntu: New Status in linux-base package in Ubuntu: New Bug description: When testing development kernels I usually rely on the installkernel script either through the "make install" target of the Kernel source or manually. This used to work great on Ubuntu on Z. On Ubuntu 20.04 (freshly installed up to date) this fails however because /boot/initrd.img is not updated (/boot/vmlinuz is) and thus zipl installs the wrong kernel/initrd combination rendering the system unbootable. (with the correct modules already copied to /usr/lib/modules/5.7.0-rc4-06500-gb67ea026badd/) # sudo installkernel 5.7.0-rc4-06500-gb67ea026badd bzImage System.map /boot run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 5.7.0-rc4-06500-gb67ea026badd /boot/vmlinuz-5.7.0-rc4-06500-gb67ea026badd run-parts: executing /etc/kernel/postinst.d/initramfs-tools 5.7.0-rc4-06500-gb67ea026badd /boot/vmlinuz-5.7.0-rc4-06500-gb67ea026badd update-initramfs: Generating /boot/initrd.img-5.7.0-rc4-06500-gb67ea026badd Using config file '/etc/zipl.conf' Building bootmap in '/boot' Building menu 'menu' Adding #1: IPL section 'ubuntu' (default) Adding #2: IPL section 'old' Preparing boot device: dasda (3844). Done. run-parts: executing /etc/kernel/postinst.d/zz-zipl 5.7.0-rc4-06500-gb67ea026badd /boot/vmlinuz-5.7.0-rc4-06500-gb67ea026badd Using config file '/etc/zipl.conf' Building bootmap in '/boot' Building menu 'menu' Adding #1: IPL section 'ubuntu' (default) Adding #2: IPL section 'old' Preparing boot device: dasda (3844). Done. # ls -l /boot total 178364 -rw------- 1 root root 135168 May 6 11:52 bootmap -rw-r--r-- 1 root root 90471 Apr 29 15:34 config-5.4.0-29-generic lrwxrwxrwx 1 root root 27 May 6 11:40 initrd.img -> initrd.img-5.4.0-29-generic <====== should point to new version -rw-r--r-- 1 root root 19663996 May 6 11:42 initrd.img-5.4.0-29-generic -rw-r--r-- 1 root root 125339494 May 6 11:52 initrd.img-5.7.0-rc4-06500-gb67ea026badd lrwxrwxrwx 1 root root 27 May 6 11:40 initrd.img.old -> initrd.img-5.4.0-29-generic -rw------- 1 root root 3087920 Apr 29 15:34 System.map-5.4.0-29-generic -rw-r--r-- 1 root root 4031691 May 6 11:52 System.map-5.7.0-rc4-06500-gb67ea026badd -rw-r--r-- 1 root root 4031691 May 6 11:49 System.map-5.7.0-rc4-06500-gb67ea026badd.old lrwxrwxrwx 1 root root 37 May 6 11:52 vmlinuz -> vmlinuz-5.7.0-rc4-06500-gb67ea026badd -rw------- 1 root root 8086072 Apr 29 15:54 vmlinuz-5.4.0-29-generic -rw-r--r-- 1 root root 9080832 May 6 11:52 vmlinuz-5.7.0-rc4-06500-gb67ea026badd -rw-r--r-- 1 root root 9080832 May 6 11:49 vmlinuz-5.7.0-rc4-06500-gb67ea026badd.old lrwxrwxrwx 1 root root 41 May 6 11:52 vmlinuz.old -> vmlinuz-5.7.0-rc4-06500-gb67ea026badd.old To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1877088/+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
