Additional debugging output can be generated with e.g. dracut option
"--stdlog 5" (or short -L5). It shows the chzdev export result, the output
of chzdev imports, and an overview of the resulting persistent config
within the initrd.
On systems, which default to using dracut option "--quiet", you might need
an additional "--verbose" to counter "--quiet" so -L5 has effect.
Typically combined with "--debug" to get a shell trace from building an
initrd (Note: --debug does not increase the log levels).
Github-ID: https://github.com/ibm-s390-linux/s390-tools/pull/158
Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Reviewed-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Acked-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Acked-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This complements v2.27.0 commit 73c46a3056 ("zdev/dracut: fix kdump by
only activating required devices"). On older distributions, the absence of
zdev_id can cause the following harmless error messages for each udev
event:
(spawn)[387]: failed to execute '/lib/s390-tools/zdev_id' \
'/lib/s390-tools/zdev_id': No such file or directory
Kdump is still functional nonetheless.
As of v2.24.0 commit 2e89722ef0 ("zdev: make site specific udev-rule for
ccw"), the invocations of chzdev within
zdev/dracut/95zdev-kdump/module-setup.sh generate
/etc/udev/rules.d/40-zdev-id.rules. And so even though zdev-kdump
intentionally does not install zdev_id and its previous singular user
zdev/udev/81-dpm.rules into the kdump initrd, because DPM device auto
configuration is not desired in the kdump environment, zdev_id meanwhile
has an additional functionality for site-support and the generated
40-zdev-id.rules calls /lib/s390-tools/zdev_id. By installing zdev_id into
the kdump initrd, 40-zdev-id.rules can work without error.
Fixes: 73c46a3056 ("zdev/dracut: fix kdump by only activating required devices")
Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Reviewed-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Steffen Maier