# cp /usr/lib64/systemd/system/remount-root.service /etc/systemd/system
# edit: ExecStart=/bin/mount -o remount,rw,data=journal /
# systemctl daemon-reload
# reboot
but noting changed, then I try to run:
# /bin/mount -o remount,rw,data=journal /
it complains error:
# dmesg
[ 129.034429] EXT4-fs (sda9): Cannot change data mode on remount
Is there any way to remount root partition with specified mount options ?
Thanks