Differences

This shows you the differences between two versions of the page.

--- linux_software_install [2020/07/13 17:11]
pgh5a [Installing Software on Linux]
+++ linux_software_install [2020/08/27 15:41]
pgh5a
@@ Line 1: / Line 1: @@
-====== Installing Software on Linux ======
+==== Installing Software on Linux ====
-The installation of Linux software is a common request. Users can submit requests to cshelpdesk@virginia.edu for software to be installed on department Linux systems. However, all servers already have the most common software already installed and available. See the next section "Software Modules" for more information.
+All servers have the most common software already installed and available. See [[linux_environment_modules|Software Modules]] for more information. Users do not have permission to install software on servers, unless it is installed in one's home directory (and does not require administrator privileges). If a software package is not available, users can submit requests to cshelpdesk@virginia.edu for software to be installed.
 Users also have the option to compile software packages themselves, installing the software to an alternate location, however this should only be done under certain circumstances. The best option is to request packages to be installed, this way the software gets installed to all of our systems.
-===== Compiling your own software =====
+=== Compiling your own software ===
 If you are building a package from source, you should use the configure script or the build environment variable to set an install-prefix of ''%%/usr/local%%''. Then when you compile, the software will be configured to install exclusively to ''%%/usr/local%%'' when you install. Compiling and installing a typical package built using Autoconf/Automake looks like this:
 <code>
-ktm5j@applecake ~ $ tar -xf coreutils-8.9.tar.xz
+abc1de@applecake ~ $ tar -xf coreutils-8.9.tar.xz
-ktm5j@applecake ~ $ cd coreutils-8.9
+abc1de@applecake ~ $ cd coreutils-8.9
-ktm5j@applecake ~/coreutils-8.9 $ ./configure --prefix=/usr/local
+abc1de@applecake ~/coreutils-8.9 $ ./configure --prefix=/usr/local
 checking for a BSD-compatible install... /usr/bin/install -c
 checking whether build environment is sane... yes
@@ Line 21: / Line 21: @@
 config.status: creating po/POTFILES
 config.status: creating po/Makefile
-ktm5j@applecake ~/coreutils-8.9 $ make
+abc1de@applecake ~/coreutils-8.9 $ make
 make  all-recursive
-make[1]: Entering directory `/net/zf15/ktm5j/coreutils-8.9'
+make[1]: Entering directory `/u/abc1de/coreutils-8.9'
 Making all in lib
-make[2]: Entering directory `/net/zf15/ktm5j/coreutils-8.9/lib'
+make[2]: Entering directory `/u/abc1de/coreutils-8.9/lib'
 ...
 ...
-ktm5j@applecake ~/coreutils-8.9 $ make install
+abc1de@applecake ~/coreutils-8.9 $ make install
 ..
 </code>
-===== Ownership of /usr/local =====
+=== Ownership of /usr/local ===
-The ''%%/usr/local%%'' path is the conventional path for software which is installed locally to a system. This is for software which has a different version and/or configuration than the standard system software. For example, if you need your own alternate version of GCC, you can install it here. All you need to do to get ownership of ''%%/usr/local%%'' is to send a ticket to root requesting it.
+The ''%%/usr/local%%'' path is the conventional path for software which is installed locally to a system. This is for software which has a different version and/or configuration than the standard system software. For example, if you need your own alternate version of GCC, you can install it here. All you need to do to get ownership of ''%%/usr/local%%'' is to send a ticket to cshelpdesk@virginia.edu requesting it.
-===== Compiling/installing software to your home directory =====
+===== Package installation for Linux =====
-We caution against compiling and/or installing software to your home directory. If the path to your home directory were to change due to a filesystem migration or something similar, then your software can break. This will especially cause issues if your ''%%.bashrc%%'' or ''%%.profile%%'' adds a path in your home directory to your ''%%PATH%%'' environment variable. This will cause your shell to become unusable if anything changes.
+Software is installed by system admins in the ''%%/sw%%'' filesystem. This is a network filesystem filled with software that has been requested by faculty and students. Environment Modules manage software packages, please read the [[Linux_Environment_Modules|main article on modules]] for more information.
-===== Package installs for Linux =====
-We now compile and install software to the ''%%/sw%%'' network path. This is a network filesystem filled with software that has been requested by faculty and students. We now use software called Environment Modules to manage software packages, please read the [[Linux_Environment_Modules|main article on modules]] for more information.