On Tue, Aug 04, 2020 at 10:54:50AM -0700, david wrote:
Yum got up to the point:
Running transaction Installing : kernel-3.10.0-1127.el7.x86_64 1/1
at which point the process appeared to hang. No further output happened for five minutes. I opened a different terminal and entered "shutdown -r now". The result is an unbootable system.
What did I do wrong? I must admit that there are multiple copies of advice on the mailing list, so perhaps I followed the wrong one?
Your system was most likely rebuilding the initrd, and you interrupted it leaving you with a broken initrd.
Try booting off a rescue disk and chroot into the install, and run:
dracut -f -v
to regenerate all the initrds.
Also, you don't need to reinstall the kernel but just do a 'yum update' to get everything up to the latest release. The shim package with the fix is the latest.