Sorry I am a little confused on the topic. I have an asus essentio series with asus uefi bios utility and I tried installing linux on the hardrive by creating a "/boot", "/" root, and swap partition. I have successfully installed the linux operating system but the grub menu only shows up when I have the usb plugged in. I was hoping that linux or the grub menu could be accessed from the bios utility similar to how windows 10 can be. But it doesn't show there, when I hold shift at the start screen to force boot grub it works but it only works with the usb plugged in, otherwise it tells me to insert a boot media because it doesn't detect linux or grub. Im sure there are similar issues somewhere on the internet but I have failed to find one that properly explained the issue, When I load linux from the usb everything works fine as if it was installed on the computer. But it just doesn't allow me to dual boot or boot in general unless that usb is plugged in.
I did install windows before attempting to install linux
fdisk -l displays
Disk /dev/sda: 931.53 GiB, 1000204886016 bytes, 1953525168 sectors
Disk model: TOSHIBA DT01ACA1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 0F62C27F-5786-4923-97AE-D1B3001BC8DB
Device Start End Sectors Size Type
/dev/sda1 2048 206847 204800 100M EFI System
/dev/sda2 206848 239615 32768 16M Microsoft reserved
/dev/sda3 239616 1338042367 1337802752 637.9G Microsoft basic data
/dev/sda4 1952442368 1953523711 1081344 528M Windows recovery environment
/dev/sda5 1338042368 1339996159 1953792 954M Linux filesystem
/dev/sda6 1339996160 1925933055 585936896 279.4G Linux filesystem
/dev/sda7 1925933056 1952442367 26509312 12.7G Linux swap
Partition table entries are not in disk order.
Disk /dev/sdb: 14.57 GiB, 15631122432 bytes, 30529536 sectors
Disk model: Cruzer Glide
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x016a74f0
Device Boot Start End Sectors Size Id Type
/dev/sdb1 * 2048 30529535 30527488 14.6G c W95 FAT32 (LBA)
root@lettuce:/home/lettuce# df
Filesystem 1K-blocks Used Available Use% Mounted on
udev 3632572 0 3632572 0% /dev
tmpfs 732628 1336 731292 1% /run
/dev/sda6 287320352 8660432 263995116 4% /
tmpfs 3663120 18752 3644368 1% /dev/shm
tmpfs 5120 0 5120 0% /run/lock
tmpfs 3663120 0 3663120 0% /sys/fs/cgroup
/dev/sda5 945144 80052 799864 10% /boot
tmpfs 732624 8 732616 1% /run/user/1000 What I would like is for it to boot grub or linux os directly from the bios or at least display grub menu at pc startup without the usb needing to be plugged in. If I wanted to make a plugnboot usb I would have just launched the usb with persistence and I wouldn't have installed linux on my hardrive. I assumed that because I have reserved a space for the linux OS and grub that it would boot from there but nope.
Any clue what I did wrong?
