Updated to Ventura and my external Thunderbolt connected backup drive is invisible

I used Super Duper for a number of years (https://shirt-pocket.com/), but switched when Dave Nanian was a little behind keeping up with one of the Apple OS updates. It was and, I assume still is, a fine program.

Jerry, do you have any info that would shed light on the ability of Super Duper to continue the bootable backup while CCC gets no reply from Apple for nearly a year? There's something strange here, and I doubt it's a difference in technical prowess between the two.

I'm assuming Super Duper is still bootable. In fact, the website says this: "3.7 is fully compatible with Big Sur, Monterey, and Ventura, the latest releases of macOS, is Apple silicon native, and produces fully bootable HFS+ and APFS backups faster and easier than ever. It even supports creating and copying from snapshots." I haven't tried it out for several years, but the bootable part worked quite well back then. 

(Almost) exactly my prob as well.

I have used this Ext HD for years with NO difficulties, until Ventura came along.

External HD with two partitions: Time Machine and CCClone (disk clone utility). The HD does not show in finder. CCClone partition does not show in Finder, but Time Machine does show. At some point in my effort to solve this, I came across the volume CCClone which had a Red circle with a minus sign through it, and when I clicked on this I was advised that: The Folder CCClone can't be opened because you don't have permission to see its contents.

CCClone has difficulty mounting the volume to do its backup, but if I hold my tongue right I can get it to mount the volume and do its work.

I cannot eject CCClone. Pre Ventura, if I asked to eject Time Machine or CCClone, I was asked if I wished to eject all volumes on that disk, which was useful. Now I cannot, and when I eventually just disconnect the USB cable, I get reprimanded for not ejecting properly.

I have gone to Settings in Finder and instructed it to show all volumes and Devices to no avail.

I would most welcome a solution to this frustrating problem.

I just noticed that you partitioned your hard drive for Time Machine and CCC. This is not a good idea. I works, but if your drive goes belly-up - and they do - BOTH of your backups are history. IMHO, you should be using separate drives for your backups. Just my $0.02.

Same problem. CC Cloner works, but external ssd drive not visible. I can unmount and remount the drive, but no deal even after restarting.

No, CCCloner does not show up in the Finder sidebar. All other volumes, as well as my Mac, are there. I'm beginning to think this is a problem between Carbonite and Ventura.

Didn't work for me, either. Not a big deal, though. Just one of those minor irritations that computers like to give us!!

Thanks for the info. I'll keep that in mind. I do have additional backups, though not bootable: Time Machine and Backblaze.

Agree. Definitely not keen to erase and start over. It was a hair pulling out procedure to partition the External HD to accommodate both Time Machine and CCCloner.

Excellent point. I will fix that. Thanks!

Excellent point. I will fix that. Thanks!