Here is the solution using the full package;
untar/zip the package to a temporary directory
e.g /tmp/altera
> tar zxvf 12.0sp2_263_quartus_free_linux.tar.gz
> cd 12.0sp2_263_quartus_free_linux
>./setup
The installer gui will show up.
Install the required parts at the required location e.g. :
/opt/altera12/quartus.
Do not let the tool remove temporary files.
go to
cd linux_installer/quartus_free_64bit
Type the full pathname of the directory where you want to
install the Quartus II software (64-bit) 12.0sp2 software when asked for.
The installer will report
"An installation of Quartus II software (64-bit) already exists in
'/opt/altera12/quartus"
"Do you want to remove it before installing Quartus II software
(64-bit) 12.0sp2? (y/n):"
Answer : No
It will install the 64-bit parts of quartus now, (with some warnings)
When this has finished the following directory can be removed
altera_install
This work is not mine and found this on a swedish website.
http://www.ict.kth.se/courses/is1500/2012/swsetup/quartus12linuxinstall.txt The instrcutions work both for Ubuntu and Slackware 14.0 (tried them both myself)
grtz
ST