aftermath-log

mount -t iso9660 -o ro /dev/sr0 /cdromcd 

1. install a iso onto virtualbox disk (vdi)
2. at the last step, exit to shell
3. raw
   . /lib/chroot_setup.sh
   chroot_setup
   chroot /target /bin/bash

should install old kernel before removing

apt remove linux-image-4.4

	install 4.3.3 kernel
	remove old kernel and header package
	hold generic kernel and header
	update-initramfs -u -k all
	// apt-mark hold package.name
	fix 2 links: ??? not required


(build -> /usr/src/linux-headers-4.10.0-28-generic)

/lib/modules/4.3.3.001+/build
/lib/modules/4.3.3.001+/source
		
	create 3 links:
		1. bzImage -> vmlinuz-4.3.3.001+
ln -s vmlinuz-4.3.3.001+
		2. ramdisk -> initrd.img-4.3.3.001+
		3. cmdline

[Match]
Name=en*
[Network]
DHCP=ipv4

systemctl enable systemd-networkd
systemctl enable systemd-resolved
systemctl enable avahi-daemon

apt-get clean
apt-get autoclean

console=tty0 console=ttyS0,115200 root=/dev/mmcblk0p1 rootwait

/etc/fstab
/dev/mmcblk0p1 / ext4 errors=remount-ro 0 1
		
   chroot_cleanup
4. finalize, shutdown the system (pause and poweroff)
5. VBoxManage clonehd --format RAW test.vdi test.img
6. sudo mount -t ext4 -o loop,offset=$((2048 * 512)),rw ./test.img mnt


mount -t proc 		proc 	mnt/proc
mount -t devtmpfs	none    mnt/dev
mount -t sysfs		none	mnt/sys
mount -t devpts 	none 	mnt/dev/pts