Bugfix. Create armbianEnv.txt when upgrading from a legacy kernels on Odroid C1/C2

debian-config-jobs

@@ -1099,6 +1099,8 @@ function jobs ()
 				# install new boot script
 				[[ -f /usr/share/armbian/boot.cmd ]] && cp /usr/share/armbian/boot.cmd /boot/boot.cmd && mkimage -C none -A arm -T script -d /boot/boot.cmd /boot/boot.scr
 				[[ -f /usr/share/armbian/boot.ini ]] && cp /usr/share/armbian/boot.ini /boot/boot.ini
+				# create armbianEnv.txt
+				[[ ! -f /boot/armbianEnv.txt ]] && printf "verbosity=1\nrootdev=$(sed -e 's/^.*root=//' -e 's/ .*$//' < /proc/cmdline)" > /boot/armbianEnv.txt
 
 				dialog --title "Kernel switch" --backtitle "$BACKTITLE" --yes-label "Yes" --no-label "Cancel" \
 				--yesno "\nNew kernel was installed. Reboot?" 7 64