On a relatively new system you should not need the udev rules thing, an external drive should auto mount once you click on it in the pager or in Dolphin.
Losing all your settings when renaming .kde is as expected.
The fact you lost your mail tells me you are using Kmail, because Thunderbird would be in a hidden .thunderbird file in your home, not in .kde.
If this had any beneficial influence on recovering the lost data fine, if not you can put the original back and your mail will be back too.
Dolphin properties telling you there are x-thousands of files will be based on hard fact, a good sign indeed
It seems you don't see them in Dolphin?
You know how to show hidden files? (press Alt+. that's Alt plus a dot)
Another way is to use the CLI, when in Dolphin and on the 'empty' directory you press F4.
This will open a terminal in the bottom half of Dolphin with the cursor in the directory that has focus in the top half.
Type
and hit return, you should get a list of the content with two columns of the number 1000, that's you the regular owner and group you belong to.
In case you see rows of different numbers like 1001 or 27 we'll have to fix the ownership.
In case you see nothing you can try again with
, the -a makes hidden files visible.
Losing all your settings when renaming .kde is as expected.
The fact you lost your mail tells me you are using Kmail, because Thunderbird would be in a hidden .thunderbird file in your home, not in .kde.
If this had any beneficial influence on recovering the lost data fine, if not you can put the original back and your mail will be back too.
Dolphin properties telling you there are x-thousands of files will be based on hard fact, a good sign indeed
It seems you don't see them in Dolphin?
You know how to show hidden files? (press Alt+. that's Alt plus a dot)
Another way is to use the CLI, when in Dolphin and on the 'empty' directory you press F4.
This will open a terminal in the bottom half of Dolphin with the cursor in the directory that has focus in the top half.
Type
Code:
ls -n
In case you see rows of different numbers like 1001 or 27 we'll have to fix the ownership.
In case you see nothing you can try again with
Code:
ls -a -n
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