Centos is an open-source version of a Redhat linux enterprise server operating system. The page describes creating a new virtual machine with Centos 7. The advantage of Centos 7 over earlier versions is some level of support for parallel processing, which FSL or FreeSurfer may take advantage of. The GUI has changed quite a bit from Centos 6.
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- Add a terminal icon to to Desktop and top bar; drag from Applications => System Tools menu
- Turn off Screen Lock from Settings (you can also turn off Location Services and Usage & History)
- Under Power, set Power Saving, Blank Screen to Never
- Add Text Editor to Desktop (From Applications => Accessories).
- (optional) Remove any software not needed (System => Administration => Add/Remove Software).
- Open the File Browser ("Home" or "Files"), navigate to /mnt/hgfs/LinuxShare, and add as a bookmark (drag to above "Other Locations")); you will now be able to navigate there directly.
- If LinuxShare does not appear, reinstall VMtools by selecting this option from the Workstation menu, and running through the steps within Linux (copy DVD files to temp folder, unpack (tar xvzf ...), and run script within folder created).
- Set the file browser to have a path address, not breadcrumbs:
gsettings set org.gnome.nautilus.preferences always-use-location-entry true - To allow normal users to install software (FSL, FreeSurfer), change the permissions on the /usr/local folder to allow writing: su,
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- Install mricron; download, extract, and save in /usr/local. Drag shortcut to desktop.
- Add the GUI for user administration:
yum install system-config-users- Change the default login to tsch: System => Administration => Users and Groups; enter the password, select user, and change the login shell to "/bin/tcsh".
- To allow "sudo" commands, edit the /etc/sudoers file with EDITOR=nano visudo; add the user by entering another line in the "MACHINE=COMMANDS" section:
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