Checklist for 0.5 upgrade by reflash- questions

Hello all. I am getting ready to upgrade to 0.5 from the last 0.4 version. (I am leaving out the last digit because it isn’t clear if 0.5.0 or 0.5.1 is most current.)

I am on a RPi4 with 4 GB RAM, 4 TB external drive, and the automated update isn’t working. Fair enough, I see a lot of people have this problem and I am willing to make a new flash card.

I have: a new 64 GB SD card so I can leave the old one intact.

Lightning channels backed up.

Bitcoin wallet backed up.

Now when I power down, insert the new SD card, and power it back up: will it recognize the old external drive and that it does not need to erase it and reload the blockchain? Can I expect it to find my old wallet and Lightning node?