Re: Getting grub working on a LiveUSB

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On Wed, Oct 04, 2023 at 04:37:55PM -0600, Joe Zeff wrote:
On 10/04/2023 03:19 PM, Patrick O'Callaghan wrote:
Unless I missed it, I don't think you've mentioned the laptop brand and
model, which might give a clue to someone reading this.


Gateway, model GWTN156-78K
[ .... ]

Not the model above, but might be close to it:

GWTN156-7BL - the boot screen:
https://www.youtube.com/watch?v=vH-LeOt2_4E
starting at ~ 9:40 mins.

If I don't have a flash drive inserted at boot, F12 gets me to BIOS.
If I do, it goes right to the grub prompt whatever I do.


Actually that looks like the hardware, your flash thumb, might be
fine: it seems grub just can't go any farther than offering the grub
prompt, from what-ever reason. But I see reason for optimism regarding
your USB device ..

So at this grub prompt: have you tried to hit the <ENTER> key, and see
what happens, or typing 'help', then <ENTER> ?

If this grub prompt offers you to self-check the LiveOS, I'd do that.

But I'd try to keep things as simple as possible, and in your case I'd
try to simply recreate the LiveFedora on the USB drive again, from
scratch, and then see what happens: it makes no sense to run around in
circles and guess again and again.

Again the instructions for the dd process:

https://docs.fedoraproject.org/en-US/quick-docs/creating-and-using-a-live-installation-image/index.html#_using_a_direct_write_method

Please be extremely careful with the 'of=/dev/sdX' part seen in the
instructions on the page above. If you choose to 'dd' the ISO to the
wrong '/dev/sdX', your desktop (or where-ever you try that) or better:
the OS on that machine might be gone in one second ...

To double-check you're dd-ing the correct drive you could simply type
'lsblk" at a prompt, before and after inserting the flash drive. Or a
little more verbose:

lsblk -o NAME,MODEL,LABEL,FSTYPE,FSVER,FSSIZE,FSAVAIL,FSUSED,FSUSE%,MOUNTPOINTS

With the latter command you can also try to make sure no partitions on
the thumb drive are mounted, which seems to be important according to
the Fedora page above.

Good luck!

Wolfgang


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