------- Comment From ofe...@il.ibm.com 2016-11-22 01:36 EDT------- just to mention that this is indeed automated code... We are using chzdev on Ubuntu to make the device persistent using the following command: /sbin/chzdev dasd-eckd 0199 -e -p
you suggested we should use this command instead of: echo 1 > /sys/bus/ccw/devices/0.0.0199/online i guess you meant chccwdev -e... We have no problem changing the code to use chccwdev instead of the echo. other distros are not relevant i only mentioned them because you asked why we use the echo command. we can run whatever is needed on Ubuntu regardless of other distros. we are using udevadm to settle after the device is linked. we did not settle after the device was brought online. please ignore the full path for each command... that is generated dynamically by the code. the command path will change dynamically if the command is moved in the future... this is done to overcome cases where the command is not in the PATH. Now, for the problem itself... i changed the code to use chccwdev -e to vary the device online. i changed the code to also settle after the device is varied online. i am getting: root@JUUB16MS:~# /sbin/dasdfmt -b 4096 -d cdl -f /dev/disk/by-path/ccw-0.0.019a -y /sbin/dasdfmt: Unable to open device /dev/disk/by-path/ccw-0.0.019a: No such device I have uploaded a new sosreport and dbginfo for you to review. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1643527 Title: dasdfmt fails after vary online. syslog show strange message "The disk layout of the DASD is not supported" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1643527/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
