I REALLY need help here!

[jpnilson]

I would just use a live image to boot the system and then use fdisk to see if you can read the drive. If so I am guessing that grub is broken. There are a number of methods out there to resolve that. If the drive isn't readable then I would first replace the cable and move it to a different port. If that doesn't work you could always try a drive and see if that is readable. Beyond that your hardware has failed

 

[coyotl]

If this is a grub2 problem you might try Supergrub2 disk https://www.supergrubdisk.org/super-grub2-disk/ Put the hybrid image they recommend on a Ventoy usb disk and boot from that, follow instructions to boot most OSes. (By the way I have come across this error: wrong magic number you must load the kernel first recently in several iso images for PCLinuxOS, so had to install the PCLOS debian Budgie version as that worked)

 

[bob466]

OP must have fixed the problem.

I did find this...
https://bbs.archlinux.org/viewtopic.php?id=266864

 

[Alexzee]

@VeryCooldude23059

Has the invalid magic number message/error disappeared?
If so, how'd you fix it?

It's been my experience that the Live USB creation went wrong or the thumb drive becomes unreliable:-