Ubuntu defaults to using and supporting chzdev. There are no Ubuntu
releases without chzdev. Please ask other distros to ship chzdev for
cross-distro compatibility and support.
If this is being automated inside scripts, one needs to replicate
everything that chzdev does - including waiting for the udev to settle.
I recommend you to do something like this:
if ! chzdev dasd-eckd 0199 -e -p; then
echo 1 > /sys/bus/ccw/devices/0.0.0199/online
fi
Or e.g.:
chzdev dasd-eckd 0199 -e -p || :
echo 1 > /sys/bus/ccw/devices/0.0.0199/online
Such that the default and preffered method to enable the devices is
always attempted and used first, rather than as a fallback. Especially
since all distributions will support chzdev eventually.
Please note, that since many distributions ar emerging sbin & bin, and /
with /usr, encoding full path to chzdev might not be as future proof as
using $PATH look-up.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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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"
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