grub2 - Booting into Ubuntu without Grub? - Ask Ubuntu


so, installed ubuntu dual-boot windows 10 , ubuntu. split 1tb hard drive in half 1 windows, other ubuntu. after installation of ubuntu, rebooted. pressed esc f9(way boot menu on hp devices), selected not windows hard drive, ubuntu hard drive. did way because saw nothing grub. said "no bootable device found. insert disc , try again." have done wrong?

first off few words on uefi/bios boot device selection versus boot loader (e.g. grub) selecting os booted:

any hard drive has master boot record @ beginning of drive. in area information on how start boot loader of drive stored (e.g. find it, do). boot loader can see different operating systems of hard drive , partitioning scheme. bios selection define medium boot - , means medium use reading said master boot record. medium optical disk (drive), flash drive or (physical!) hard disk. not know written on disk , cannot see partitioning. may e.g. choose if want boot ssd or hdd.

now solution of problem:

as explained above, need boot loader on hard drive different oss (and respective partitions). thing missing in installation. ubuntu installed fine, cannot found, windows boot loader still active won't display (complain ms matter).

so need install grub.

for boot ubuntu installation cd , select live version ("try ubuntu"). if live version doesn't have boot-repair available (i think included now), install opening terminal , typing:

sudo add-apt-repository ppa:yannubuntu/boot-repair sudo apt-get update sudo apt-get install boot-repair

start program , follow instructions.


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