TUTORIAL En Español
If you have Windows installed on a GPT partitioned drive, and you want to dual-boot, do not use this tutorial.
Mint should be installed in UEFI mode, in that case, not in Legacy mode.
If you are installing Mint without dual-booting with Windows, this tutorial will show you how.
GPT partitioning allows you to make up to 128 primary partitions, by default. So it is more versatile, (and more stable), than msdos partitioning, which is limited to 4 primary partitions.
The change from msdos to GPT partitioning will delete all existing partitions on the drive.
BACKUP EVERYTHING that you want to keep!
To change your hard drive from msdos partitioning to GPT:
- boot your live Mint DVD or USB
- open the Gparted program: Menu > Administration > Gparted
- in Gparted, select your hard drive from the drop-down list at the top right.
- if there is a swap partition on the drive, right-click on the swap partition > swapoff
- delete all existing partitions on the drive
- open the Device menu in Gparted > Create Partition Table > gpt > APPLY
NOTE: the bootloader (Grub) will be installed to the drive, not to the partition.
CREATING A bios_grub PARTITION:
- In Gparted, right-click on the unallocated space on the drive > New
- Size: 1 MiB (that is MiB, not GiB) (It can be bigger, if you want... I have one that is 4 MiB)
- File System: unformatted
- click the APPLY button
- after the partition is created, right-click on it > Manage flags > check "bios_grub" > APPLY