Triaged to the subiquity project, as this issue appears to be related to a subiquity 20.04 installation. Please feel free to reclassify if that's inappropriate.
** Also affects: subiquity Importance: Undecided Status: New ** Also affects: ubuntu-z-systems Importance: Undecided Status: New ** No longer affects: subiquity ** Package changed: linux (Ubuntu) => subiquity ** Changed in: ubuntu-z-systems Importance: Undecided => Medium ** Changed in: ubuntu-z-systems Assignee: (unassigned) => Canonical Foundations Team (canonical-foundations) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1892367 Title: [UBUNTU 20.04] udev rule change did not get applied Status in subiquity: New Status in Ubuntu on IBM z Systems: New Bug description: During the ubuntu installation in tessia, we do chzdev for both dasd and qeth devices, as below. 2020-08-20 09:54:45 | INFO | START subiquity/Early/run/command_1 : chzdev -e dasd 385c 2020-08-20 09:54:45 | INFO | SUCCESS subiquity/Early/run/command_1 : chzdev -e dasd 385c 2020-08-20 09:54:45 | INFO | START subiquity/Early/run/command_2 : chzdev -e qeth 0.0.bdf0 2020-08-20 09:54:47 | INFO | SUCCESS subiquity/Early/run/command_2 : chzdev -e qeth 0.0.bdf0 and we can see the below files in the /etc/udev/rules.d/ oot@m8360024:~# ls -l /etc/udev/rules.d/ total 76 -rw-r--r-- 1 root root 154 Aug 20 09:08 41-cio-ignore.rules -rw-r--r-- 1 root root 430 Aug 20 09:08 41-dasd-eckd-0.0.385c.rules -rw-r--r-- 1 root root 357 Aug 20 09:08 41-generic-ccw-0.0.0009.rules -rw-r--r-- 1 root root 1049 Aug 20 09:08 41-qeth-0.0.bdf0.rules -rw-r--r-- 1 root root 58549 Aug 20 09:10 70-snap.snapd.rules Now, lsinitramfs shows files as below, root@m8360024:~# lsinitramfs /boot/initrd.img-5.4.0-42-generic | grep 41 etc/udev/rules.d/41-cio-ignore-root.rules etc/udev/rules.d/41-dasd-eckd-0.0.385c.rules usr/lib/udev/rules.d/41-cio-ignore.rules usr/lib/udev/rules.d/41-dasd-eckd-0.0.385c.rules usr/lib/udev/rules.d/41-generic-ccw-0.0.0009.rules usr/lib/udev/rules.d/41-qeth-0.0.bdf0.rules Even though lsinitramfs shows the below files, they are overruled by the filesystem files. Next thing we did was to modify the 41-qeth-0.0.bdf0.rules and modified the buffer_count to 128 (As in the attached file). In ideal scenario, the value should we modified as mentioned in the bug. But, in our case, if we are not doing a zipl or update-initramfs -u, the value is not getting modified. To manage notifications about this bug go to: https://bugs.launchpad.net/subiquity/+bug/1892367/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp