What are some ways to debug a "No Bootable Device" message.

[Michael Singh]

What are some tips for debugging a machine Fedora 27 was just installed on
but after a reboot you're greeted by the message "No Bootable Device"

-- 
Regards,
Michael Singh
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[Digimer]

On 2018-01-24 01:00 PM, Michael Singh wrote:
>  What are some tips for debugging a machine Fedora 27 was just
> installed on
>  but after a reboot you're greeted by the message "No Bootable Device"
During boot, depending on your hardware, you should be able to press
<F8> (or similar) to manually select a boot device. See if your hard
drive is listed. If it is, and if two or more drives are listed, it
might be trying to boot off the wrong disk. Select the Fedora one and
try booting it.

-- 
Digimer
Papers and Projects: https://alteeve.com/w/
"I am, somehow, less interested in the weight and convolutions of
Einstein’s brain than in the near certainty that people of equal talent
have lived and died in cotton fields and sweatshops." - Stephen Jay Gould

[Michael Singh]

What puzzles me is that I was able to reach a much friendlier
bootloader by enabling Secure Boot and selecting /EFI/fedora/shimx64-
fedora.efi as a trusted UEFI file for executing.

Does ayone know enough to shed some light on this?
On Wed, 2018-01-24 at 13:06 -0500, Digimer wrote:
>  On 2018-01-24 01:00 PM, Michael Singh wrote:
>  > What are some tips for debugging a machine Fedora 27 was just
>  > installed on
>  > but after a reboot you're greeted by the message "No Bootable
>  > Device"
>  
>  During boot, depending on your hardware, you should be able to press
>  <F8> (or similar) to manually select a boot device. See if your hard
>  drive is listed. If it is, and if two or more drives are listed, it
>  might be trying to boot off the wrong disk. Select the Fedora one and
>  try booting it.
>  
>  -- 
>  Digimer
>  Papers and Projects: https://alteeve.com/w/
>  "I am, somehow, less interested in the weight and convolutions of
>  Einsteins brain than in the near certainty that people of equal
>  talent
>  have lived and died in cotton fields and sweatshops." - Stephen Jay
>  Gould
>  _______________________________________________
>  users mailing list -- users(a)lists.fedoraproject.org
>  To unsubscribe send an email to users-leave(a)lists.fedoraproject.org 
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[Samuel Sieb]

On 01/24/2018 11:30 AM, Michael Singh wrote:
>  What puzzles me is that I was able to reach a much friendlier
>  bootloader by enabling Secure Boot and selecting /EFI/fedora/shimx64-
>  fedora.efi as a trusted UEFI file for executing. 
I would guess you mean grub which is the menu that you should be 
getting.  But the F8 (or whatever key it is) menu is the BIOS boot 
selection screen.  If you're getting a "no bootable device" message, 
that's from the BIOS.  So the question is if you can get to that boot 
menu and if anything works from there.

[Tim]

Allegedly, on or about 24 January 2018, Michael Singh sent:
>  What are some tips for debugging a machine Fedora 27 was just
>  installed on but after a reboot you're greeted by the message "No
>  Bootable Device" 
Could be that when you installed, your hard drive was something like
/dev/sdb, and your installation boot media was /dev/sda.  But after
your installation boot media isn't being booted from, the main drive is
/dev/sda.  Or in grub's parlance, hd0, hd1, etc.

That kind of thing is avoided by not referring to devices in such a
generic way (using labels, UUIDs, etc.), and I thought the installer
did that by default, these days.  But occasionally something will have
taken the simplistic approach of just referring to whatever's currently
in /dev/sda1, et cetera.  And that will depend on your machine always
enumerating your drives in the same manner.

-- 
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Linux 4.14.13-200.fc26.x86_64 #1 SMP Thu Jan 11 05:43:34 UTC 2018 x86_64

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[Neal Becker]

Michael Singh wrote:

>  What are some tips for debugging a machine Fedora 27 was just
> installed on
>  but after a reboot you're greeted by the message "No Bootable Device"
>   
You mean ways that *don't* involve the use of firearms?