I have installed openwrt in the router TP-MR3420. But I have a problem, I can not perform a sysupgrade:
"root@Casa:~# sysupgrade -v http://downloads.openwrt.org/snapshots/ … pgrade.bin
Saving config files...
etc/sysctl.conf
etc/shells
etc/rc.local
etc/profile
etc/passwd
etc/inittab
etc/hosts
etc/group
etc/dropbear/dropbear_rsa_host_key
etc/dropbear/dropbear_dss_host_key
etc/config/wireless
etc/config/webif
etc/config/updatedd
etc/config/uhttpd
etc/config/timezone
etc/config/timeserver
etc/config/system
etc/config/network
etc/config/firewall
etc/config/dropbear
etc/config/dhcp
etc/config/cron
etc/banner
Switching to ramdisk...
Segmentation fault
Segmentation fault
/sbin/sysupgrade: line 134: busybox: not found
/sbin/sysupgrade: line 134: busybox: not found
/sbin/sysupgrade: line 134: busybox: not found
/sbin/sysupgrade: line 134: umount: not found
/sbin/sysupgrade: line 134: grep: not found
/sbin/sysupgrade: exec: line 134: /bin/busybox: not found"
I get the same error using the sysupgrade or the factory. What can I do to resolve the problem? If I try to perform a sysupgrade using the original firmware of the router. Would it work?