This question already has an answer here:
Sorry in advance for some extraneous info.
So I just got a new 3TB HDD and used ddrescue to copy files from a failing 2TB HDD to this new one. I knew the partition on my new 3TB HDD would be limited to the size of the old 2TB one but thought that I could use GParted to extend the partition once everything was copied.
And then... I tried to extend my partition size to the full 3TB and found out that I couldn't because of the msdos partition table imposed maximum which allows at largest 2TB. So while using this site I found the solution was to create a gpt partition table in GParted but looking into this it said it would delete all data on the drive.
Soooo the crux of the matter: Is it possible for me to change the partition table format on my hard drive to gpt without wiping the drive?