Cannot install Cremona database

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Thank you very much for your answer. I tried to install the Cremona database via Sage notebook with the command : !sage -i database_cremona_ellcurve That did not work. I got an syntax error. I am using Windows 7 professional with Oracle VM Virtualbox Manager. How do I access the terminal in a Windows environment ? Thank you again for your help.

I found the terminal. Thank you very much. Unfortunately there are new errors while installing the Cremona database. tar: src/cremona.db: Wrote only 1024 of 10240 bytes tar: Exiting with failure status due to previous errors Error: failed to extract /home/sage/sage-6.4.1/upstream/database_cremona_ellcurve-20140829.tar.bz2 Can you help again ? Thank you in advance !

This database is very huge, so it is likely you didn't provide enough space to your VM's image. There should be a way to expand the size of the VM, i do not have Virtualbox installed right now so i can not give a try but it should not be hard to do this.

to see how much space you have in VM, please run, in VM's terminal, the command
df -h

Hi, Dima. Thank you very much for your comment. After running the df -h command, I see on Filesystem /dev/sda2 Size 6.8G Used 6.4G Use% 100%. Since I use the Oracle VM the first time, I dont have any experience with it. Do you know how big is the Cremona database and how much space there should be in VM ? How do I allolcate it? Thank you in advance.