Subdirectory and save environment variables

Created by: nguyentumine

Extract ISO to subdirectory.

• This allows you to have multiple versions of Manjaro on the same partition.
• This also allows you to save the environment variable, the option will be remembered for the next startup.

For example, you extract the ISO file to the "subdirectory" directory.

menuentry "Manjaro" {
	set basedir="/subdirectory"
	export basedir
	configfile ${basedir}/boot/grub/grub.cfg
}

Please remove the "misobasedir=manjaro misolabel=*" of line 37 of the kernels.cfg file.