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Use this method if you are interested in booting using UEFI, and if your System Rescue CD initial boot menu was black and white. If it was light blue, this method will not work.
gdisk commands to create a GPT partition table are as follows. Adapt sizes as necessary, although these defaults will work for most users. Start
root # gdisk /dev/sda
gdisk, follow these steps:
Create a new empty partition table (This will erase all data on the disk when saved):
Command: o ↵ This option deletes all partitions and creates a new protective MBR. Proceed? (Y/N): y ↵
Create Partition 1 (boot):
Command: n ↵ Partition Number: 1 ↵ First sector: ↵ Last sector: +500M ↵ Hex Code: EF00 ↵
Create Partition 2 (swap):
Command: n ↵ Partition Number: 2 ↵ First sector: ↵ Last sector: +4G ↵ Hex Code: 8200 ↵
Create Partition 3 (root):
Command: n ↵ Partition Number: 3 ↵ First sector: ↵ Last sector: ↵ (for rest of disk) Hex Code: ↵
Along the way, you can type "
p" and hit Enter to view your current partition table. If you make a mistake, you can type "
d" to delete an existing partition that you created. When you are satisfied with your partition setup, type "
w" to write your configuration to disk:
Write Partition Table To Disk:
Command: w ↵ Do you want to proceed? (Y/N): Y ↵
The partition table will now be written to the disk and
gdisk will close.
Now, your GPT/GUID partitions have been created, and will show up as the following block devices under Linux:
/dev/sda1, which will be used to hold the
/dev/sda2, which will be used for swap space, and
/dev/sda3, which will hold your root filesystem.
You can verify that the block devices above were correctly created by running the command