I just wanted to try the kernel that I've build yesterday (see comment #6) and as a first step I wanted to recreate re-create the described error situation on an up to date 20.04 system: $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 20.04 LTS Release: 20.04 Codename: focal $ uname -a Linux zlin42 5.4.0-40-generic #44-Ubuntu SMP Mon Jun 22 23:57:33 UTC 2020 s390x s390x s390x GNU/Linux $ apt-cache policy linux-generic linux-generic: Installed: 5.4.0.40.43 Candidate: 5.4.0.40.43 Version table: *** 5.4.0.40.43 500 500 http://ports.ubuntu.com/ubuntu-ports focal-updates/main s390x Packages 500 http://ports.ubuntu.com/ubuntu-ports focal-security/main s390x Packages 100 /var/lib/dpkg/status 5.4.0.26.32 500 500 http://ports.ubuntu.com/ubuntu-ports focal/main s390x Packages $
But by surprise I didn't ran into any problems! I was able to flawlessly make use of FBA devices in the following three different way: 1) (re-)used a FBA device that was previously in use, without wiping out any data 2) used a FBA device that I wiped out using wipefs 3) used a FBA device that I entirely wiped out (and zeroed) using dd (see the attached doc for more details) Looks like a fix for this problem came in with the kernels that were rolled out in between 5.4.0-29-generic and 5.4.0-40-generic. (Again I didn't installed the patched kernel, I just used the latest official one.) Message to the initial bug reporter: Please can you retry on an up-to-date 20.04 system (or after having updated your existing one, like for example with "sudo apt -y -q update && sudo apt -y -q full-upgrade" plus reboot in case the kernel got update, what I assume will happen)? ** Attachment added: "cmdline.txt" https://bugs.launchpad.net/ubuntu-z-systems/+bug/1879707/+attachment/5394964/+files/cmdline.txt ** Changed in: ubuntu-z-systems Status: In Progress => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1879707 Title: [UBUNTU 20.04] mke2fs dasd(fba),Failing CCW,default ERP has run out of retries and failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1879707/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs