Re: Issue with bootup after install on 3TB drives
Because you don't install grub2 to a partition. The bios_grub partition is needed for grub2 to use it on gpt table, but it uses it automatically. It knows which partition to use to store part of its code because of the bios_grub flag.
You install grub2 as usuall, to /dev/sda, /dev/sdb, etc. To the MBR, not to the sda1 partition.
If you installed it onto a partition you effectively have no bootloader on the MBR hence nothing is booting.
Also, the bios_grub partition should have NO filesystem, RAW format.
Darko.
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Ubuntu 18.04 LTS 64bit
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