Local Mounting of File Systems
If you are using a Windows computer, the HOME and WORK directory of CARL and EDDY can be mounted as network drive by using
\\daten.uni-oldenburg.de\hpchome\
and
\\daten.uni-oldenburg.de\hpcdata\ (not active at the moment)
as address, respectively. After that, the username and password of your university account (also used for CARL and EDDY) will be requested to connect this share.
There are two ways, to connect to a network share in Windows (also see web pages of IT Services regarding the L:-drive):
- Open the File Explorer and Right-Click on "This PC". Select "Map Network Drive". Choose a letter for the network drive (e.g. V:) and enter the address as explained above. If you are not using your university account to login on your Computer, also tick "Using different credentials". Click "Finish" to proceed. You should be prompted for a user name (see below) and password. After entering both, the network drive should be ready to use. If you have problems, try to google "windows map network drive" for more detailed instructions.
- Alternatively, open a command windows (cmd.exe). The command "net use" will show you any connected network drives. Use the command "net use <drive letter> /d /y" to remove any unwanted connection. Replace "<drive letter>" by e.g. "V:". The command "net use <drive letter> <network address> * /user:w2kroot\abcd1234" will prompt you for your password and connect the network drive. Replace "<drive letter>" (e.g. "V:"), "<network address>" as shown above, and "abcd1234" with your user name.
In either case contact servicedesk@uni-oldenburg.de if you are getting an error message.
Note: The username has to be specified with the domain name, e.g.: "w2kroot\abcd1234"
If you are using a Linux computer, the HOME and WORK directory of CARL and EDDY can be mount with the command
sudo mount -t cifs -o workgroup=W2KROOT,username=<user>,file_mode=0600,dir_mode=0700,uid=<linux_username>,gid=<linux_group> //daten.uni-oldenburg.de/hpc_home <mount_point4home>
and
sudo mount -t cifs -o workgroup=W2KROOT,username=<user>,file_mode=0600,dir_mode=0700,uid=<linux_username>,gid=<linux_group> //daten.uni-oldenburg.de/hpc_work <mount_point4work>
<user> has to be replaced by the username you are using on CARL and EDDY. The place holder <mount_point4home> (or <mount_point4work>) has to be replaced by an valid, empty directory on your system. The variables <linux_username> and <linux_group> have to be replaced by the user- and group name under linux if the user and the group ID/name is different to the Windows user and group ID. When executing the command first, sudo will ask for your password of your local machine. After that, mount will ask for your password of CARL or EDDY.
Alternatively one can extend the file /etc/fstab by the lines
//daten.uni-oldenburg.de/hpchome <mount_point4home> cifs workgroup=W2KROOT,username=<user>,file_mode=0600,dir_mode=0700,uid=<linux_username>,gid=<linux_group>,noauto,users //daten.uni-oldenburg.de/hpcwork <mount_point4work> cifs workgroup=W2KROOT,username=<user>,file_mode=0600,dir_mode=0700,uid=<linux_username>,gid=<linux_group>,noauto,users
and then mount the devices by
mount <mount_point4home> mount <mount_point4work>
Here the sudo command is not needed due to the users option.
Note:
- The mount command without the entry in the /etc/fstab needs root permissions. Thats why you have to add sudo to the mount command.
- To mount CIFS file systems under Linux usually additional packages have to be installed. E.g. on Ubuntu 12.04LTS the package 'smbfs' and 'smbclient' have to be installed by sudo apt-get install smbfs. For Ubuntu 14.04LTS you'll need 'cifs-utils'. For other Linux distributions please search for 'cifs' or 'smb' in your package manager.
- The file system has to be mounted after each reboot or shutdown. They are not mounted automatically
- sudo caches the password for a certain time. So if you call sudo again, sudo doesn't ask for your password again.
