Delete noobs and shrink image rpi

rpi_noobs_delete_shrink_img.txt

1. Repartition new card to have two partitions. The first one exactly the same type and size as /boot, and the second one using the rest of the card as type Linux.
gparted 64mib fat32 sda1
gparted ext4 sda2

2. dd if=/dev/mmcblk0p6 (whatever /boot is) of=/dev/sda1 (the first partition on the new card)
3. mkfs -t ext4 /dev/sda2 (the new Linux partition)
4. mount -t ext4 /dev/sda2 /mnt
5. rsync -ax --progress / /mnt
5.1 if readonly fs fsck -n -f
6. nano /mnt/etc/fstab and change /boot and / to mmcblk0p1 and mmcblk0p2 respectively.
7. umount /mnt
8. mount -t vfat /dev/sda1 /mnt
9. nano /mnt/cmdline.txt and change the root= to /dev/mmcblk0p2
10. umount /mnt
11. Remove card and use it.
12. if you need to shrink image, then use https://gist.github.com/free5ty1e/85f41277e13a2c446b9e3b18163efebf