sagemath installation fails on ubuntu 16
<p>I need help installing sagemath on my ubuntu 16 laptop.</p>

<p>I did this:</p>

<pre><code>cat /etc/os-release 
cd ~
wget http://mirrors.mit.edu/sage/linux/64bit/sage-7.2-Ubuntu_16.04-x86_64.tar.bz2
tar jxf sage-7.2-Ubuntu_16.04-x86_64.tar.bz2
SageMath/sage
</code></pre>

<p>I saw this:</p>

<pre><code>dan@al78:~ $ tar jxf sage-7.2-Ubuntu_16.04-x86_64.tar.bz2
dan@al78:~ $ 
dan@al78:~ $ ll SageMath/sage
-rwxr-xr-x 1 dan dan 4680 May 15 16:43 SageMath/sage*
dan@al78:~ $ 
dan@al78:~ $ SageMath/sage
RecursionError: maximum recursion depth exceeded during compilation
┌────────────────────────────────────────────────────────────────────┐
│ SageMath version 7.2, Release Date: 2016-05-15                     │
│ Type "notebook()" for the browser-based notebook interface.        │
│ Type "help()" for help.                                            │
└────────────────────────────────────────────────────────────────────┘

ERROR:  The Sage installation tree has moved
</code></pre>

<p>I'd welcome clues on how to debug this.</p>