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zdev/dracut: fix kdump build to integrate with site support

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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>
This commit is contained in:
Steffen Maier
2023-08-01 18:58:45 +02:00
committed by Jan Höppner
parent a07d1bca74
commit 4b486e87cc
1 changed files with 4 additions and 0 deletions
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4
zdev/dracut/95zdev-kdump/module-setup.sh
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@@ -46,6 +46,10 @@ installkernel() {
install() {
local _tempfile
# zdev_id is not functionally required for kdump but optionally
# installing avoids error messages from zdev site udev rule processing
inst_multiple -o /lib/s390-tools/zdev_id
# Obtain kdump target device configuration
_tempfile=$(mktemp --tmpdir dracut-zdev.XXXXXX)