安装lumaqq

我用MV移动时出现提示：
mv: cannot move `lumaqq_2006M2-linux_gtk2_x86_no_jre.tar.gz' to `/usr/local/lumaqq_2006M2-linux_gtk2_x86_no_jre.tar.gz': Permission denied
解压时出错，提示：
root@ubuntu:~# tar -xzvf lumaqq_2006M2-linux_gtk2_x86_no_jre.tar.gz
tar: lumaqq_2006M2-linux_gtk2_x86_no_jre.tar.gz: Cannot open: No such file or directory
tar: Error is not recoverable: exiting now
tar: Child returned status 2
tar: Error exit delayed from previous errors
请问这是什么问题，应该怎么安装