how do I remove this sage installation problem

asked 2013-02-12 23:15:13 +0100

Anonymous

I have attempted to install sage on my ubuntu machine. Files are extracted properly and when I try to install by typing ./sage it first gives me hopes by saying:

"The Sage installation tree has moved from /home/meghak/Desktop/meghasage/sage-5.6-linux-32bit-ubuntu_12.04.1_lts-i686-Linux to /home/meghak/Desktop/meghasage/sage5.6 Updating various hardcoded paths... (Please wait at most a few minutes.) DO NOT INTERRUPT THIS.
Done updating paths."

but then it gives me a message "spkg/bin/sage: line 324:...local/bin/sage-ipython: Permission denied "

I looked into line 324 , it is indicated as ... in the following:

sage() { sage_setup sage-ipython "$@" -i }

Please help, it might be a trivial question but I am not getting it. Thanks in advance.

Comments

What is the output of the following command (run it from the command prompt) ls -l /home/meghak/Desktop/meghasage/sage5.6/local/bin/sage-ipython

ppurka ( 2013-02-13 00:42:44 +0100 )edit

To elaborate, you probably have the wrong permissions on some of your folders and aren't allowed to write/create a file somewhere.

kcrisman ( 2013-02-13 10:26:54 +0100 )edit

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answered 2013-02-13 16:54:11 +0100

ihanson

36 ●1 ●2 https://github.com/iha...

Run Sage once as root:

sudo ./sage --nodotsage

This will give Sage the permissions it needs to update the paths. Afterwards, you will be able to run Sage as a normal user.

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Is this anywhere in the installation doc? And is it safe if you are not the only user on a computer?

kcrisman ( 2013-02-13 22:00:45 +0100 )edit

"sudo ./sage --nodotsage" did not work. I still have 'permission denied' message. I also checked i-python permissions, according to what ppurka suggested. I get "-rw-r--r-- 1".

Megha K. ( 2013-02-14 04:03:42 +0100 )edit

@Megha - right. You are missing execute permissions. How did you miss out on execute permissions? I am pretty sure the downloaded Sage tarball has execute permissions in the required files. You can not go around fixing execute permissions file by file. There are too many files and not all of them should have this permission. I suggest you download the sage binary again. This time, be more careful and this time extract it with tar pxf downloaded_filename The 'p' in there should ensure that the extracted files have got the correct permissions. If you have the downloaded tar.lzma file, then you don't need to download that again. Simply run the above tar command.

ppurka ( 2013-02-14 05:52:56 +0100 )edit

Thanks. I will do that.

Megha K. ( 2013-02-14 23:45:51 +0100 )edit

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