Something went wrong
5.4.85-sunxi not deprecated, so looks weird
pi@orangepipcplus:~$ apt list --installed | grep linux
binutils-arm-linux-gnueabihf/bionic-security,bionic-updates,now 2.30-21ubuntu1~18.04.8 armhf [installed,automatic]
console-setup-linux/bionic-updates,now 1.178ubuntu2.9 all [installed]
libselinux1/bionic,now 2.7-2build2 armhf [installed]
linux-base/bionic-updates,now 4.5ubuntu1.7 all [installed]
linux-bionic-root-legacy-orangepipcplus/now 20.11.6 armhf [installed,local]
linux-dtb-legacy-sunxi/now 20.11.6 armhf [installed,local]
linux-image-legacy-sunxi/now 20.11.6 armhf [installed,local]
linux-libc-dev/bionic-security,bionic-updates,now 4.15.0-204.215 armhf [installed,automatic]
linux-u-boot-orangepipcplus-legacy/now 20.11.6 armhf [installed,local]
util-linux/bionic-security,bionic-updates,now 2.31.1-0.4ubuntu3.7 armhf [installed]
pi@orangepipcplus:~$ sudo apt install linux-dtb-current-sunxi64 linux-image-current-sunxi64
E: Unable to locate package linux-dtb-current-sunxi64
E: Unable to locate package linux-image-current-sunxi64