I was using Ubuntu 14.04 and Windows 10 in dual boot.
Suddenly there was a problem and I was unable to boot into any of them (both Ubuntu 14.04 and Windows 10). So I reinstalled Windows 10 and then I tried to reinstall Ubuntu.
I deleted the old ubuntu partition.Now I get the following error while installing ubuntu from cd.
"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 “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, bootloader installation may fail later, although it may still be possible to install the boot loader to a partition."
It gives me two options :
1.Go back
2.Continue
What should I do?
I tried to install both in legacy mode and uefi mode but I get the same error.
Best Answer
The error message you report should NOT appear in an EFI/UEFI-mode boot, only in a BIOS/CSM/legacy-mode boot. Furthermore, when you're dual-booting with Windows, if that message appears, you should STOP IMMEDIATELY, because you're pretty much guaranteed to have bigger problems once the system is installed. The issue is this:
Windows ties its boot mode to its partition table type -- Windows will boot in BIOS mode only from MBR disks, and in EFI mode only from GPT disks. Ubuntu is not nearly so strict. The "reserved BIOS boot area" is a BIOS Boot Partition, which is a type of partition that's used to enable BIOS-mode booting from GPT disks. In a dual-boot setup, though, a GPT disk means that Windows is installed in EFI mode, and the request that you create a BIOS Boot Partition means that the Ubuntu installer is booted in BIOS mode, and is trying to set up a BIOS-mode boot. Booting Windows in EFI mode and Ubuntu in BIOS mode is possible, but doing so is an unnecessary complication.
Thus, what I recommend you do is:
/sys/firmware/efi
. If it's present, you've booted in EFI mode; if it's absent, you've booted in BIOS mode and you should try again.Note that, in many cases, the boot-mode options are more like suggestions than commands; the computer may fall back to booting in another mode even if you've told it to boot in one way only. It's more common to be unable to force a BIOS-mode boot than to be unable to force an EFI-mode boot, though.