The recommended method to convert these disks is to upgrade the operating system to Windows 10 first, then perform the MBR to GPT conversion. So 2k8 sounds like a no no even for an offline conversion.

This disk management software can convert MBR to GPT without losing any data. Check the table to learn how EaseUS Partition master makes MBR to GPT conversion safe and worry-free: ...

MBR vs GPT: How to choose between MBR and GPT Many computer users are curious about whether they should use MBR or GPT when initializing a disk for the first time in Windows. In fact, selecting ...

Ability to resize, merge, delete, format, and check partition easily. Ability to convert MBR disk to GPT and vice versa. A simple and intuitive User Interface. Ability to manage dynamic disks.

You’ll be glad to know that SSDs are much faster than traditional Hard Disk Drives (HDD), and that’s a good thing. Now, when it is time to partition the drive, you will come across GPT and MBR.

Turns out by default Linux (RHEL8) is still using MBR disks and so you run into the 2TB max limit. Found that there is a command "sgdisk" that will do a live conversion to GPT without any data loss.

As a leading provider of data recovery, file backup, and disk management solutions, EaseUS has observed that an increasing number of PC users encounter errors such as 'Secure Boot is not enabled' or ...

GPT is capable of accommodating disks that exceed 2 TB in size, whereas MBR is unable to do so. The GPT disk partitioning style is capable of accommodating volumes up to 18 exabytes in size and up ...