The whole hard drive is not in read only.
The status of the disk really doesn't matter. You have to check the exact FOLDER (not the disk) that contains the catalog file, to make sure you have WRITE permission. You may have also check the Read-Only flag in the file Properties, please check that and make sure it is not checked.
Right-click on the folder containing the catalog in its location and change the attribute so that it isn't read-only.
As stated (sure not explicitly) I do have the right to write and modify and all that on the folder since I can test with a backup catalog.
As stated , I can copy the catalog to any other folder even newly created and it's still considered as read only to lightroom.
As stated, the system does not consider the file as read only so it shouldn't be read only for lightroom.
as an extra information, lightroom does create the lrcat.lock when trying to open the catalog.
So what makes lightroom consider that file as read only. How could I fix it to avoid loosing the few hours of work since last backup. And what was done wrong for lightroom to mess up that catalog?
I would consider that since I didn't explicitly say it and didn't mention I was on windows.
Here is the stupidity of the system: Link to microsoft support
"Unlike the Read-only attribute for a file, the Read-only attribute for a folder is typically ignored by Windows, Windows components and accessories, and other programs. For example, you can delete, rename, and change a folder with the Read-only attribute by using Windows Explorer."
You have to check the Read-Only flag on the catalog file itself. What does it show? Show us a screen capture.
You are right, as it seems really hard to read the 3 times I said it is not on read only, let's settle the fact that I have full control of the folder and that the fact is not on read only (forth time now).
I appreciate the help but just like critic, constructive help is better!
And just to clear that out of the way. full control on the file too
What happens if you put this catalog file on some other disk, not A: and not B: ???
As said in the first post
"A backup works fine, but that catalog copied to another place is still read only."
(for extra info I copied it to a new folder on the desktop to be sure to have all right)
A and B drives are still considered floppy drives by Windows.