STServiceStudentLabSofteng < CF

CF Web>STServiceStudentLabSofteng (2022-10-26, DanielAllen) (raw view)

Roughly ordered Steps to setup a system:

   * Install an LTS Ubuntu using a standard ISO and then update the Apt Repository Sources using instructions at https://cs.uwaterloo.ca/cscf/infrastructure/setups/ubuntu/UW-CS-Server/ 

   * Install the following meta-packages (*make sure to run an =apt-get update= and =apt-get upgrade= first!*):
   <verbatim>

apt-get install -y uwcs-auth uwcs-bare-metal uwcs-shells  uwcs-workstation 

   </verbatim>
   
   * Update https://cs.uwaterloo.ca/cscf/internal/inventory/web/inventory/ and infoblox with *Hardware MAC address, desired IP, Hostname* and location details so that DHCP will pick station up properly.
   * Make sure =/etc/network/interfaces= contains :

<verbatim>
# The primary network interface
auto eth1
iface eth1 inet dhcp
</verbatim>

   * REMOVE and make sure "Network Manager" is not installed and running using following command
<verbatim>
sudo apt-get purge network-manager; ifup -a
</verbatim>

   * Make sure =/etc/resolv.conf= contains the following (correct the search fields as needed for a domain) by modifying =/etc/resolvconf/resolv.conf.d/base=:
<verbatim>
search cs.uwaterloo.ca
nameserver 172.19.32.5
nameserver 172.19.32.6
nameserver 172.19.47.6
options rotate attempts:1 timeout:1
</verbatim>
   * Execute the following command to create mount points for =student.cs= home directories :
<verbatim>
sudo mkdir -p /org/cs /u /u0 /u1 /u2 /u3 /u4 /u5 /u6 /u7 /u8 /u9 /u.truncated
</verbatim>

   * Add following /etc/fstab :
<verbatim>


fs-homedirs.student.cs.uwaterloo.ca:/nethome/cs-quota               /org/cs nfs sec=krb5,tcp,nodiratime,rsize=32768,wsize=32768,vers=3,nolock,noauto 

/org/cs/u            /u            none  bind,noauto
/org/cs/u0           /u0           none  bind,noauto
/org/cs/u1           /u1           none  bind,noauto
/org/cs/u2           /u2           none  bind,noauto
/org/cs/u3           /u3           none  bind,noauto
/org/cs/u4           /u4           none  bind,noauto
/org/cs/u5           /u5           none  bind,noauto
/org/cs/u6           /u6           none  bind,noauto
/org/cs/u7           /u7           none  bind,noauto
/org/cs/u8           /u8           none  bind,noauto
/org/cs/u9           /u9           none  bind,noauto
/org/cs/u.truncated  /u.truncated  none  bind,noauto
</verbatim>
   * Also, a note by ctucker for Ubuntu 14.04 systems :

<verbatim>
This is done however there is a persistent race condition in the Ubuntu 1404 operating system which is causing attempts to 
mount the NFS shares in /etc/fstab prior to the network service being ready.

To overcome this problem I have inserted the following lines into the /etc/rc.local file to ensure the NFS mount 
is performed again at the end of the boot process. These lines must precede the exit 0 at the end of the rc.local file.

sleep 10
mount /org/cs
sleep 2
mount /u
mount /u0
mount /u1
mount /u2
mount /u3
mount /u4
mount /u5
mount /u6
mount /u7
mount /u8
mount /u9
mount /u.truncated 

</verbatim>
   * Patch =/etc/lightdm/lightdm.conf= to consist of the below and then =sudo service lightdm restart=:

<verbatim>

[SeatDefaults]
greeter-session=unity-greeter
user-session=ubuntu
greeter-show-manual-login=true
greeter-hide-users=true
allow-guest=false

</verbatim>
   * Physically install system in lab and make sure networking works. 
   * Contact infrastructure group to configure AD.
   * If the host is a server accessed from =linux.student.cs=, then update =ssh= config on =linux.student.cs= using =ssh-keygen -f "/etc/ssh/ssh_known_hosts2" -R IP_ADDRESS=.


-- Main.OmNafees - 2014-05-22

Topic revision: r19 - 2022-10-26 - DanielAllen

Information in this area is meant for use by CSCF staff and is not official documentation, but anybody who is interested is welcome to use it if they find it useful.

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