/etc/grub.d/40_custom file on my Dell Precision M3800

40_custom

#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
#

# ZORIN 16 PRO x64
#  Boots fine, no issues.
#
menuentry "Zorin OS 16 x64 R1" {
	set isofile="/iso/ZorinOS16-x64-R1.iso"
	rmmod tpm
	loopback loop (hd1,2)$isofile
	linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$isofile
	initrd (loop)/casper/initrd.lz4
}

# CAINE 11
#  Tries to mount /dev/sda2 as /cdrom and goes no further.
#
menuentry "CAINE 11" {
	set isofile="/iso/caine11.0.iso"
	rmmod tpm
	loopback loop (hd1,2)$isofile
	linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$isofile toram nomdmonddf nomdmonisw
	initrd (loop)/casper/initrd.gz
}

# Tails OS
#  Boots fine, no issues.
#
menuentry "Tails OS"{
	set isofile="/iso/tails-amd64-4.22.iso"
	loopback loop (hd1,2)$isofile
	linux (loop)/live/vmlinuz boot=live config nopersistence noprompt timezone=Etc/UTC block.events_dfl_poll_msecs=1000 splash noautologin module=Tails slab_nomerge slub_debug=FZP mce=0 vsyscall=none page_poison=1 quiet findiso=$isofile
	initrd (loop)/live/initrd.img
}

# Kali Linux
#  Boots fine, no issues.
#
menuentry "kali-linux-2021.2-live-amd64" {
	insmod ext2
	set isofile="/iso/kali-linux-2021.2-live-amd64.iso"
	loopback loop (hd1,2)$isofile
	linux (loop)/live/vmlinuz boot=live findiso=$isofile
	initrd (loop)/live/initrd.img
}

# BlackArch
#	Boots fine, no issues.
#
set isodir="/iso"
menuentry "BlackArch Linux 2021.09.01 (x86-64) - root:blackarch" --class dvd {
	set isofile="/iso/blackarch-linux-full-2021.09.01-x86_64.iso"
	set dri="free"
	probe -u $root --set=abc
	set pqr="/dev/disk/by-uuid/$abc"
	loopback loop (hd1,2)$isofile
	linux (loop)/blackarch/boot/x86_64/vmlinuz-linux img_dev=$pqr img_loop=$isofile driver=$dri tz=Pacific/Auckland lang=en_US keytable=US nouveau.modeset=0 rd.driver.blacklist=nouveau nouveau.blacklist=yes archisobasedir=blackarch cow_spacesize=60%
	initrd (loop)/blackarch/boot/intel-ucode.img (loop)/blackarch/boot/amd-ucode.img (loop)/blackarch/boot/x86_64/initramfs-linux.img
}

# PartedMagic
#	Boots fine, no issues.
#
menuentry "Parted Magic" {
	set isofile="/iso/pmagic_2021_08_17.iso"
	loopback loop $isofile
	linux (loop)/pmagic/bzImage iso_filename=$isofile load_ramdisk=1 boot=live mem=32G
	initrd (loop)/pmagic/initrd.img (loop)/pmagic/fu.img (loop)/pmagic/m.img
}

# SystemRescue
#	Boots fine, no issues.
#
menuentry 'System Rescue CD' {
	set isofile='/iso/systemrescue-8.05-amd64.iso'
	probe -u $root --set=imgdevuuid
	set imgdevpath="/dev/disk/by-uuid/$imgdevuuid"
	loopback loop (hd1,2)$isofile
	linux (loop)/sysresccd/boot/x86_64/vmlinuz archisobasedir=sysresccd img_dev=$imgdevpath img_loop=$isofile earlymodules=loop
	initrd (loop)/sysresccd/boot/intel_ucode.img (loop)/sysresccd/boot/amd_ucode.img (loop)/sysresccd/boot/x86_64/sysresccd.img
}

# Parrot Security
#	Fails to boot
#
menuentry "Parrot Security" {
	set isofile="/iso/Parrot-security-4.10_amd64.iso"
	probe -u $root --set=imgdevuuid
	set imgdevpath="/dev/disk/by-uuid/$imgdevuuid"
	loopback loop (hd1,2)$isofile
	linux (loop)/live/vmlinuz iso-scan/filename=$isofile boot=live hostname=parrot quiet splash components noautomount nouveau.modeset=0 nvidia.modeset=0 radeon.modeset=0 vga=normal
	initrd (loop)/live/initrd.img
}

# KNOPPIX LIVE DVD v9.1
#
#
menuentry "KNOPPIX_V9.1DVD-2021-01-25-EN" {
	set isofile="/iso/KNOPPIX_V9.1DVD-2021-01-25-EN.iso"
	loopback loop (hd1,2)$isofile
	linux (loop)/boot/isolinux/linux64 initrd=minirt.gz init=/etc/init bootfrom=/dev/sda2$isofile BOOT_IMAGE=knoppix knoppix_dir=/KNOPPIX toram noimage noswap noprompt xmodule=nouveau screen=1920x1080
	initrd (loop)/boot/isolinux/minirt.gz
	boot
}

menuentry "Reboot" { reboot }
menuentry "Halt" { halt }