several VMs have suddenly quit working, in VBox.

Hi all!

I have several VMs, all in virtualbox 6.0.14 and all the VBOX add-ons are
up to date.

I don't use them daily, last used any of them probably 4-6 weeks ago,
pretty sure it was already running 6.0.14 by that time. they were all
fine when last used.

Two of them are C7, one is a clone of the other, and the other is C8.
each seems to have different symptoms.

the C7 clone claims there is no initramfs, no matter which kernel I
try to boot. See first attachment.