Linux Problem

When I do a ‘dnf update’ I get the following message:

Package skypeforlinux_8.62.0.83-1.x86_64.rpm is not signed
The downloaded packages were saved in cache until the next successful transaction.
You can remove cached packages by executing ‘dnf clean packages’.
Error: GPG check FAILED

It won’t update anything until I resolve this, but I have no idea how to do so. I don’t understand why it won’t install anything because there’s a problem with one package.

[Update a while later]

OK, new mystery. I want to set up Windows as a virtual machine, so I hooked up an SSD to put it on. But when I do so, I don’t see anything in the file manager. What’s even weirder is that when I look at /dev, all I see is sdb and sdb1, with no sda. But I know that my OS is on an SSD (presumably sda1), and /home is on a separate hard drive (which would be sdb1). How is this machine even running?

[Update a few minutes later]

OK, I’ve tried two different SSDs with two different cables, but I am not getting an sdc. I shouldn’t have to reboot, should I?

[Update a few more minutes later]

Never mind, bad power connector. But I still don’t understand why I’m not seeing my boot/root drive as sda.

[Update a while later]

OK, I rebooted, and now I see all the drives.

Which Is It?

This is a thing on Facebook, but I’ll do it here. I’ll list five famous people whom I’ve been within a few feet of, but one of them is a lie:

Mitt Romney

Buzz Aldrin

Fred Smith

Newt Gingrich

Bill Nelson

[Evening update]

All right, since everyone is guessing Mittens, I’ll start the slow process of elimination. I met him at the Conservative Summit in DC right after the disastrous 2006 election. I tried to talk to him briefly about space and advising him on it, but (as he later demonstrated), he didn’t give a rat’s patoot.

Monday-afternoon update]

OK, I’ve had enough guesses. I’ve known Buzz for decades; he used to call me in the middle of the night. I had lunch with Fred Smith at the Atheneum at Caltech in the 90s, when we were pitching him for funding for supersonic research. I talked to Newt for a while at a reception at the State Department a year ago. I’ve never been in physical proximity to Bill Nelson, or communicated with him.

Biting Commentary about Infinity…and Beyond!