Comment # 11 on bug 1228929 from Felix Miata

(In reply to Martin Wilck from comment #10)
> I suggest that you edit
> /usr/lib/module-init-tools/kernel-scriptlets/rpm-scripts
File not found. rpm-script assumed.

All TWs and Slowrolls here have had this for quite some time:
# cat /etc/environment
INITRD_IN_POSTTRANS=1
SKIP_REGENERATE_INITRD_ALL=1

All will be getting the following added:
WM2_DEBUG=1
WM2_VERBOSE=1

It's possible each of the earlier failures not remembered could have been on
Core2Duo or older processors.
Host g5eas (14 May email report failure): Intel(R) Pentium(R) 4 CPU 3.20GHz
Host p5bse (comment #0 host): Intel(R) Core(TM)2 Duo CPU E7500  @ 2.93GHz
Host gx745 (comment #7 host): Intel(R) Core(TM)2 CPU 6700  @ 2.66GHz

After the WM2 environment additions, and:
# grep -B3 -A2 rc=0 /usr/lib/module-init-tools/kernel-scriptlets/rpm-script
## per bug 1228929
set -x

script_rc=0

case $op in
# cat /etc/dracut.conf.d/89-b1228929.conf
sysloglvl="4"
#
and rebooting, I upgraded g5eas from 6.9.9 to 6.10.7 as instructed in comment
#10 -> no fault found.

50+ TW & Slowroll hosts remain to have similar done here. g5eas was only the
third or so to get a 6.10 kernel here.