wiki/en/transfer-sysupgrade.md

Upgrade firmware

sysupgrade for old firmware

sysupgrade -k -r for new firmware

If you got this error:

losetup: /tmp/rootfs.squashfs.${soc}: No such file or directory
Rootfs: Unable to get hostname, execution was interrupted...

Try first update kernel: sysupgrade -k

If it doesn't help use option --force: sysupgrade -r --force

If you caught a glitch:

curl -k -L -o /usr/sbin/sysupgrade "https://raw.githubusercontent.com/OpenIPC/firmware/master/general/overlay/usr/sbin/sysupgrade"