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-Part１- Talking about macOS Catalina

| Alaudae.JP

For the past few days, I have been immersed in setting up macOS Catalina (Catalina) 10.15, and the installation and settings of macOS Catalina were completed in one day.In my case, I would never upgrade directly, but always do a clean install even if it is troublesome. This is the answer to all my past experiences from Mac OS X to macOS, and it can be completed from macOS without any failures or problems.

However, there is a reason why I am still engrossed in the setup work.
Actually, I deleted all the data from Time Machine.

I didn't know that there was a problem with macOS Catalina's Time Machine (without checking the information), and it was fine until I migrated the necessary data from the backup data, but I assumed that everything would be fine and erased the Time Machine data.
An error occurs and I get anxious...

I no longer have a backup of macOS 10.14 Mojave and can't go back to macOS Mojave!

Actually, after I migrated to macOS 10.14 Mojave's Time Machine and made a backup, I was notified of a problem and was unable to infiltrate Time Machine.

When I checked the file extension, it was always '.sparsebundle', but this time it was '.backupbundle'.

I have no choice but to search
https://discussions.apple.com/thread/250624630
When I looked at the file, there was a twist that I could check the contents by changing the file extension from '.backupbundle' to '.sparsebundle', so I ran it and was able to see it, so I extracted the most important data from there and I'm worried about using it as is. That's why I tried to clean Time Machine once, and my naive speculation and actions went in the wrong direction.

Rather than regret it, I can't feel at ease if I don't back up the data I need, so I tried every possible method based on my knowledge, but I couldn't back it up using Time Machine, and in the end I ended up using Apple's Waiting for update.

Even if there are no problems at the moment, I have experienced sudden accidents, so I can't concentrate on my handicraft work! !

Hurry up and update before the typhoon hits!