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JJrussel
Asked: 2020-11-06 06:42:44 +0800 CST

How can I remove persistence after making changes?

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I wanted to disable one of my graphic cards from starting on boot so i created a Xubuntu 18.04 LTS with UNetbootin with persistance. Then I added radeon.modeset=0 to the line GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" through sudo nano /etc/default/grub

That did the trick but now I want to remove persistance but keep this change. How do I do that?

If there's an alternate way to permenantly add the line or disable the graphic card from changing on a non-persistent Live USB, that would would do too.

Also, I want this Live USB on a multi boot USB (I'm using Ventoy) so not sure how I can make the changes if it requires to first make persistance.

boot live-usb xubuntu persistence

1 Answers

  1. Best Answer

    Adding radeon.modeset=0 to UNetbootin Non-Persistent Install

    • If booting BIOS mode boot the UNetbootin USB and press Tab, type a space then toram.

    • Once booted and stable, unplug and replug the USB.

    • Edit /cdrom/boot/grub/grub.cfg, adding radeon.modeset=0 after quiet splash in the first menuentry

    • Then Edit /cdrom/syslinux.cfg, adding radeon.modeset=0 after quiet splash in the first menu item.

    This change will be permanent.

    If you are booting in UEFI mode press e at the boot menu and add toram after quiet splash.

    Once booted edit grub.cfg and syslinux.cfg as above.

    You can also edit the boot files running from another Live USB or desktop. Booted from another Live USB the paths are /media/xubuntu/USBNAME/syslinux.cfg and /media/xubuntu/USBNAME/boot/grub/grub.cfg where USBNAME is the name of the USB. In this case cdrom is not on the path.

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