exfat-initramfs_ubuntu-based-distro.txt

########### boot iso in vm ###########

echo exfat >> /etc/initramfs-tools/modules

cd /usr/share/initramfs-tools
grep iso-scan . -r
less scripts/casper-premount/20iso_scan
grep find_path . -r
vi scripts/casper-helpers
# Add a condition for `exfat` in the case statement of the is_supported_fs function.

update-initramfs.distrib -c -k $(uname -r)
cd /boot
python3 -m http.server

########### End boot iso in vm ###########

# Download initrd.img-$(uname -r)
7z x /path/to/.iso -owork
cp ~/Downloads/initrd.img work/casper/initrd.lz
cat work/.disk/mkisofs

docker run -it --rm -v .:/mnt ubuntu

########### docker ###########

apt install -y mkisofs isolinux xorriso
xorriso ...

########### End docker ###########