Failed to start Remount root and Kernel File systems

[bartoll]

I got this error during boot system with BerryBoot.
Failed to start Remount root and Kernel File systems

Steps:

1. I downloaded official image from Ubuntu 20.04 Server arm64 https://cdimage.ubuntu.com/releases/20.04.2/release/ubuntu-20.04.2-preinstalled-server-arm64+raspi.img.xz
2. I converted this file with unxz command:
   unxz ubuntu-20.04.2-preinstalled-server-arm64+raspi.img.xz
3. I converted image with your script:
   ./berryboot_conv.sh ubuntu-20.04.2-preinstalled-server-arm64+raspi.img ubuntu-20.04.2-arm64.berryboot.img
4. I copied this final image to usb stick and add it simply to berryboot.

Do you know how to fix this problem?

[symbios24]

If you have rpi3 or 4 use the berryboot for rpi4 not for 3 since its 64 bit os it works in 3 too
Otherwise the converted image is just corrupted and cannot be converted,try the 32bit version of the image