在一个嵌入式 Linux 上如何安装软件?

过年在家找到一个老机器,联想 N200 网络存储仓,官网都没有资料了,可以 WEB 登录,ssh 也可以登录,想装个离线下载,但是很多命令不支持.SMB 只支持 1.0.还能打开共享,传输速率 6M,有什么办法呢?
-sh-3.1$ cat /proc/version
Linux version 2.6.15 (liuyong@development) (gcc version 3.4.4) #215 Wed Dec 30 20:46:37 CST 2009
-sh-3.1$ uname -a
Linux LenovoN200 2.6.15 #215 Wed Dec 30 20:46:37 CST 2009 armv4l unknown
-sh-3.1$ cat /proc/cpuinfo
Processor :Cortina SL2312
BogoMIPS : 235.92
cpu mhz : 320
Features : swp half
CPU implementer : 0x66
CPU architecture: 4
CPU variant : 0x0
CPU part : 0x526
CPU revision : 1
Cache type : write-back
Cache clean : cp15 c7 ops
Cache lockdown : format B
Cache format : Harvard
I size : 16384
I assoc : 2
I line length : 16
I sets : 512
D size : 8192
D assoc : 2
D line length : 16
D sets : 256

Hardware : LENOVO VER:1.0.0.4
Revision : 0000
Serial : 0000000000000000
---------------------------------------------------
-sh-3.1$ cat /proc/meminfo
MemTotal: 125652 kB
MemFree: 2528 kB
Buffers: 33016 kB
Cached: 66800 kB
SwapCached: 0 kB
Active: 28344 kB
Inactive: 77964 kB
HighTotal: 0 kB
HighFree: 0 kB
LowTotal: 125652 kB
LowFree: 2528 kB
SwapTotal: 0 kB
SwapFree: 0 kB
Dirty: 0 kB
Writeback: 0 kB
Mapped: 10360 kB
Slab: 13908 kB
CommitLimit: 62824 kB
Committed_AS: 43904 kB
PageTables: 376 kB
VmallocTotal: 122880 kB
VmallocUsed: 16780 kB
VmallocChunk: 105980 kB
----------------------------------------------
-sh-3.1$ cd /etc
-sh-3.1$ ls
adjtime exports hostname initsys localtime ntp rc.d shadow udev
aliases firmware hosts inittab mail passwd rc.local smartd upnp
dhcp group init.d iosermap mtab printcap resolv.conf ssh vshttpd.conf
diskpartinfo host.conf initop ld.so.conf network proftpd.conf samba sudoers webmg
dld.conf hostmail initsh local.conf nsswitch.conf protocols services timecache