:~$ sudo gdisk -l /dev/sda GPT fdisk (gdisk) version 0.8.8 Partition table scan: MBR: protective BSD: not present APM: not present GPT: present Found valid GPT with protective MBR; using GPT. Disk /dev/sda: 976773168 sectors, 465.8 GiB Logical sector size: 512 bytes Disk identifier (GUID): F41109D6-7663-46B8-BCC9-188563C07BC9 Partition table holds up to 128 entries First usable sector is 34, last usable sector is 976773134 Partitions will be aligned on 2048-sector boundaries Total free space is 5240 sectors (2.6 MiB) Number Start (sector) End (sector) Size Code Name 1 2048 1050623 512.0 MiB EF00 2 1050624 79500204 37.4 GiB 8300 3 968595456 976771071 3.9 GiB 8200 4 79501312 157626311 37.3 GiB 0700 5 157626368 968595455 386.7 GiB 0700
I'm asking because I had a lot of issues when I tried to dual-boot Windows and Ubuntu my new laptop, even with secure boot disabled. I ended up formatting everything and installing Ubuntu fresh with GPT. It used to be far simpler in my previous laptop where there was no UEFI/Secure boot complication. I tried to get my head around it but couldn't.
Now, a few months after that, I've realized I need to install Windows 7, but I can't afford to screw up my current Ubuntu installation.
What would be the best way to dual-boot Ubuntu now? I can easily afford 50gigs or so for Windows out of the 386.7 GiB partition.