Alienware 15/R3: No longer able to see the option to boot from USB stick with Alienware BIOS when pressing F2 during power-on sequence - Ask Ubuntu


i lost capability see , select option boot usb, in power-on process, when pressing f2 bios menu. seems usb not been detected bios.

my pc alienware 15/r3. used able that, , installed ubuntu 16.04 through that. have installed dual boot, windows 10 original, , ubuntu 16.04 lts.

here changes had made:

  • i turned of "secure boot", , make ssd windows 10 os
  • partition accessible ubuntu, changed "sata operation" raid-on achi.
  • i have run several times of ubuntu's boot-repair usb stick, , installed ubuntu.
  • i used gparted partition hard disk

i don't remember changing else.

as cannot boot installed ubuntu, please advise should better recover? guess might first boot windows 10 first see if still working.

thanks help!


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