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DescriptionJesús Serrano Sánchez-Toscano
2017-07-28 13:27:08 UTC
Description of problem:
When using grubby to remove a specific LVM parameter (rd.lvm.lv) from the file /etc/grub2.cfg, it removes an incorrect one. Even if a non-existing combination of VG/LV is given to the argument "--remove-args=rd.lvm.lv=vg/lv", it removes a parameter of type "rd.lvm.lv" instead of giving a warning and not modifying the /etc/grub2.cfg.
Version-Release number of selected component (if applicable):
grubby-8.28-21.el7_3.x86_64
How reproducible:
Always
Steps to Reproduce:
1. Check the occurrences of the parameter 'rd.lvm.lv' from the /etc/grub2.cfg file:
[root@fvm-rhel-7-3-35 ~]# egrep -o 'rd.lvm.lv=\S+' /etc/grub2.cfg | sort -u
rd.lvm.lv=r7vg/root_lv
rd.lvm.lv=r7vg/swap_lv
2. Use grubby to remove the parameter 'rd.lvm.lv' which references to the swap LV:
[root@fvm-rhel-7-3-35 ~]# grubby --update-kernel=ALL --remove-args=rd.lvm.lv=r7vg/swap_lv
3. Check the result of what grubby has deleted:
[root@fvm-rhel-7-3-35 ~]# egrep -o 'rd.lvm.lv=\S+' /etc/grub2.cfg | sort -u
rd.lvm.lv=r7vg/swap_lv
Actual results:
It deletes a wrong parameter 'rd.lvm.lv' from the kernel boot line in the file /etc/grub2.cfg
Expected results:
Grubby should delete only the parameter indicated with the option "--remove-args=vg/lv" or give a warning if it doesn't find it in any of the kernel boot lines from the file /etc/grub2.cfg.
Additional info:
N/A
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-2019:2227