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Description of problem:
kexec-tools needs this feature to remove needless devices under kdump.
Two dracut upstream commits:
commit 37f2fe55d dracut.sh: introduce "--no-hostonly-default-device" argument
commit 5634a3115 rootfs-block/module-setup.sh: check root_devs in cmdline_rootfs()
Version-Release number of selected component (if applicable):
How reproducible:
Steps to Reproduce:
1.
2.
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Actual results:
Expected results:
Additional info:
Hi Lukas, could you please backport the feature to rhel7.5? We have several bugs dependent on this one and the customers want them to be fixed quickly.
According to test, rhel7 still lacks below commit, but I'm not sure if it depends on other commits.
commit 07a081f352497258862ae164d11d9e6dc2c5b959
Author: Harald Hoyer <harald>
Date: Fri Nov 13 13:40:38 2015 +0100
dracut.sh: remove the concept of host_modalias
We can never gather enough information about compiled in modules, so
don't pretend to know and do smart decisions.
Maybe we can go with below changes, it passed my test, what's your opinion?
The changes is based on dracus.sh in your scratch build
--- dracut 2017-10-27 14:57:26.401855223 +0800
+++ dracut.new 2017-10-27 15:34:11.948891591 +0800
@@ -1121,8 +1121,9 @@ if [[ $hostonly ]] && [[ "$hostonly_defa
[[ -b $_dev ]] && push host_devs "$_dev"
done < /etc/fstab
fi
+fi
-
+if [[ $hostonly ]] && [[ "$hostonly_default_device" != "no" ]]; then
# record all host modaliases
declare -A host_modalias
find /sys/devices/ -name uevent -print > "$initdir/.modalias"
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2018:0964