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I am wanting to install Ubuntu-desktop onto my laptop. I has windows, switched to ubuntu-desktop, then ubuntu-server, and now trying to go back to ubuntu-desktop. I grabbed my flash drive used Rufus and ubuntu 18.04 to create a bootable USB stick like instructed, but I think something got messed up on my computer and I can't get anything to work. I've read through other answers concerning the ACPI BIOS error, but haven't been able to find the pages people are refereeing to.

I can boot up and press shift to get this page:

Install ubuntu
OEM install (for manufacturers)
Check disc for defects

I can press e to enter this page which seems to be the page where you turn off ACPI, but I haven't been able to find that line of code or where to add it.

setparams `Try Ubentu without installing`

    set gfxpayload=keep
    linux        /casper/vmlinuz file=/cdrom/pressed/ubuntu.seed boot=casper quiet splash ---
    linitrd       /casper/initrd

If I either boot from the page above or try installing ubuntu with the USB that I am using, the purple ubuntu page will load for a few minutes and then I receive this page:

[  12.248188] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCIO.PEGO._PRT.AR02], AE_NOT_FOUND (20190816/psargs-330)

[  12.248208] ACPI Error: Aborting method \SB._PICO.PEGO._PRT due to previous error (AE_NOT_FOUND) (20190816/psargs-531)


[  12.248550] ACPI BIOS Error (bug): Could not resolve symbol [_SB.PCIO.PEGO._PRT.AR02], AE_NOT_FOUND (20190816/psargs-330)


[  12.248561] ACPI Error: Aborting method \SB._PICO.PEGO._PRT due to previous error (AE_NOT_FOUND) (20190816/psargs-531)


[  12.248742] ACPI BIOS Error (bug): Could not resolve symbol [_SB.PCIO.PEGO._PRT.AR02], AE_NOT_FOUND (20190816/psargs-330)


[  12.248749] ACPI Error: Aborting method \SB._PICO.PEGO._PRT due to previous error (AE_NOT_FOUND) (20190816/psargs-531)


[  12.397888] nouveau 0000:01:00.0 bus: MMIO read of 00000000 FAULT at 022554 [ IBUS ]
[  12.408638] nouveau 0000:01:00.0 bus: MMIO read of 00000000 FAULT at 10AC08 [ IBUS ]


BusyBox v1.27.2 (Ubuntu 1:1.27.2-2ubuntu3.2) built-in shell (ash)
Enter 'help' for a list of built-in commands.


(initramfs) Unable to find a medium containing a live file system

If there is any other information that anyone needs, please let me know!

Binx
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I think rufus has been stating these days that there are missing files. I had to reinstall from popos ==> moved to ubuntu, since I figured out I have to live boot in order to change root password. Don't play with groups :D. Try to fry the USB once again, but with 20.04 trust me, also update rufus there might be some bug swimming around.

Nikolay Kostov
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