meesha

It actually is. After rsync'ing files to another device, remove the directory /boot from there. Then, after restart, mount the filesystem on the sdcard to somewhere on the new filesystem. Mine is at /mnt/sdcard. To achieve this, add a line to /etc/fstab like:
/dev/mmcblk1p1          /mnt/sdcard        ext4    defaults, noatime,nodiratime   0     2 after creating the actual directory in /mnt.
 
Then, issue just once a command:
ln -s /mnt/sdcard/boot /boot
And it will be there each time you restart, also allowing the updater to put firmware files where they should be. And it runs now perfectly.