Friday, November 27, 2015

linux - Mint 17 and Windows 8.1 Dual Boot: No EFI partition

I am working on the installation for Mint 17 and need to understand what is going on with my Windows 8.1 booting. Here is an image showing all partitions from Windows:


http://i.imgur.com/Xvf5OjE.png


As you can see the EFI patition is 100% free space, and "Boot" is included in the status message for the C partition.


In these instructions the author suggests changing the "efi" parition to EFI Boot partition using the "Change" option. However, I do not have an "efi" partition in under my available partitions in the Mint installation.


If I create root, home, and swap partitions, and click "Install Now" I get the following error:



The partition table format in use on your disks normally requires you to create a separate partition for boot loader code. This partition should be marked for use as a "Reserved BIOS boot area" and should be at least 1MB in size.



UPDATE >> It looks like I do have an EFI system partition, but Mint isn't recognizing it as such, and is not providing the option to "Change" to "EFI Boot partition" selected.


mint@mint ~ $ sudo parted -l
Model: ATA TOSHIBA THNSNS25 (scsi)
Disk /dev/sda: 256GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Number Start End Size File system Name Flags
1 1049kB 316MB 315MB ntfs Basic data partition hidden, diag
2 316MB 588MB 273MB fat32 EFI system partition boot
3 588MB 722MB 134MB Microsoft reserved partition msftres
4 722MB 123GB 123GB ntfs Basic data partition msftdata
5 245GB 246GB 472MB ntfs hidden, diag
6 246GB 254GB 8389MB ntfs Basic data partition hidden, diag
7 254GB 256GB 2147MB Basic data partition hidden

How should I proceed?

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