Lost UEFI boot entry.
So I managed to get 14.1 installed on a UEFI box using LVM. So far so good. Not had a lot of time to get to it so the other day, I uninstalled sendmail, powered off and unplugged the SATA drive.
Today I tried to boot but forgot to plug in the drive. No biggie. Power off, replug and boot, right? But I start getting errors about rebooting and selecting proper boot device.
Investigation reveals that the drive is good, partitions appear to be good. Eventually I conclude that apparently the bios is supposed to keep boot entries and apparently mine has become lost.
From what I have read so far, efibootmgr can install one. But that is not anywhere I can see when I boot from the DVD. Does Slackware use something else or do I have to mount my partitions? Apparently some bioses, this can be done with a bcfg command but my uefi shell does not have this command.
I guess another important question is whether this can be prevented from happening again? It seems dumb to throw away config information simply because a drive was unplugged. This was a FM2-A55M-E33 motherboard if that helps.
I'll be updating this thread as I work out what's going on but helpful information provided would be much appreciated.