WR703N的DD-WRT的ipkg问题

紫贝壳

WR703N刚刷了DD-WRT，用ipkg命令安装libpcap和mentohust时，一直报错，以前刷的Openwrt时，ipkg命令也是一样报错。
错误如下所示：
root@DD-WRT:/tmp# ipkg install mentohust_0.3.1-1_mipsel.ipk
ERROR: File not found: //usr/local/lib/ipkg/lists/whiterussian
       You probably want to run `ipkg update'
ERROR: File not found: //usr/local/lib/ipkg/lists/non-free
       You probably want to run `ipkg update'
ERROR: File not found: //usr/local/lib/ipkg/lists/backports
       You probably want to run `ipkg update'
/bin/ipkg: line 1184: sort: not found
root@DD-WRT:/tmp# ipkg install libpcap_0.9.8-1_mipsel.ipk
ERROR: File not found: //usr/local/lib/ipkg/lists/whiterussian
       You probably want to run `ipkg update'
ERROR: File not found: //usr/local/lib/ipkg/lists/non-free
       You probably want to run `ipkg update'
ERROR: File not found: //usr/local/lib/ipkg/lists/backports
       You probably want to run `ipkg update'
/bin/ipkg: line 1184: sort: not found
root@DD-WRT:/tmp#



寻求解决方案。
或者告知DDWRT下使用锐捷或者mentohust的正确方法