My computer already has two pre-installed OSes: Windows 7 and a customized Linux distro. Both are in UEFI mode. GRUB is already installed too.
I'm trying to install Kubuntu 14.10 alongside these two installations. To do so, I created a bootable USB stick with LiLi and booted from it in the Boot Menu. Everything is fine until the "Disk Setup" step (note: I choose "Manual" partitioning).
I create a new 100 GB ext4 partition using the free space (~ 250 GB) and set the mount point to "/". Then, when I click "Continue", 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 1 MB in size. Note that this is not the same as a partition mounted on /boot.
If you do not go back to the partitioning menu and correct this error, boot loader installation may fail later, although it may still be possible to install the boot loader to a partition.
I'm stuck here.
- Is the "Reserved BIOS boot area" the same as an EFI partition?
- If so, since there are already two OSes installed, it should already exists, right? I do not see such a partition but there is a partition called "free space" at the beginning of the disk which is 1 MB in size.
- Is it possible that this "free space" is actually the EFI partition?
- If I mark this partition for use as "Reserved BIOS boot area", would it solve the problem?
EDIT: the 1 MB "free space" partition is indeed an EFI partition, however I still don't know how to fix my problem.