XSCE 6.0 Release Candidate 1 for CentOS “7.1”

updated Dec 17, 2015

  • Important addendum:
  • UNDER CONSTRUCTION

Download 1.8GB XSCE 6.0 Release Candidate 1 for CentOS “7.1” (November 2015)

  • Download centos7_xsce.6.rc1.img
http://download.unleashkids.org/xsce/downloads/installer/centos/centos7_xsce.6.rc1.img
http://download.unleashkids.org/xsce/downloads/installer/centos/centos7_xsce.6.rc1.img
use dd or gnome disks restore to write onto a USB memory stick, verifying its MD5 checksum equals
http://download.unleashkids.org/xsce/downloads/installer/centos/centos7_xsce.6.rc1.img.md5.txt 

Follow instructions here: (Option 1.5)

http://wiki.sugarlabs.org/images/a/a4/IntelNUCInstallation-XSCEIIABServer.pdf

System Setup

  • Configuration I used for this testing
satellit
  • NOTE NUC i3 has 4 GB memory and wifi internal card installed.
intel (tm) NUC kit D34010WYKH1
1 TB Seagate HD added to empty kit

 

Also See

  • Google Docs with relevant info
http://wiki.laptop.org/go/XS_Community_Edition/FAQ#Is_a_quick_installation_possible.3F
https://docs.google.com/document/d/1Ez1H2LYrkqeXR_r5T93CMdmx9CeTJp_vC-IDBGam1Bc/edit#heading=h.hr9kca62zrfq

Configuration

  • Connect a USB­to­Ethernet dongle (adapter) from the NUC to a live Ethernet cable (with

live Internet) so that during installation, software can download and update itself. ​

  • Ideally, this live Ethernet wire leads from the dongle to a LAN port in the Netgear 3G

Modem/Router, whose WAN port (during this installation only!) leads to the Internet. Later you’ll verify “ping 8.8.8.8” and “ping mit.edu” works thru this wire, as will be discussed below.

  • Connect an Ethernet cable and a powered TP­LINK AP ​
(LAN port, and tape over WAN port to make sure it’s never used)​

to the NUC’s Ethernet port (its green link lights should light).

Install onto Intel NUC

  • This also works on a system 76 i7 laptop
  • Write to a USB stick with dd or gnome-disks restore
  • Windows users can use ​
http://sourceforge.net/projects/win32diskimager/

Format of HD for install

  • Do not use GPT format
Testing seems to result in all of installed content to be limited to 500 MiB
  • Format HD as fat ext4 in gnome-disks or gparted
Hint use booted f23 workstation live DVD or USB to access disks to reformat the internal HD.
exit live
then do install with dd USB of centos

Boot NUC with USB stick inserted, using F10 is necessary

  • NOTE USB port on NUC or Laptop where TP-Link is connected must be marked and be the only port used.
Or the server will not communicate with XO's or laptops
  • Type “erase” when requested
  • Watch for “done!” or #prompt; ignore “I/O error”.
  • Run “reboot”
Optionally Disable all USB booting in BIOS: F2 on Boot ­> Boot Configuration ­>

Boot Devices ­> USB

Likewise this should already be disabled: Boot ­> Boot Configuration ­> UEFI Boot ­> Boot USB Devices First

Login to your new server as: root / centos, then change both passwords:

passwd                      (changes root password) 
passwd xsce-­admin           (has sudo powers, careful!) 
  • Verify that you have internet connection with “ping yahoo.com”
Ensure both your networking connections are live and connected in their final position.
  • Update Centos7
yum update

Get the most recent version of the XSCE playbook

cd /opt/schoolserver/xsce
git pull
./install-console
  • Reboot
Login to xsce-admin/(password)
sudo yum groupinstall xfce --skip-broken
sudo install firefox
startxsfce4
  • start firefox
  • Test client machines can reach ​
http://schoolserver.lan

or ​

http://172.18.96.1
  • Finally, if you have no downstream WiFi AP, try:
http://localhost

from any browser, on the server itself if available! And also try:

http://localhost/admin​ 

with username “xsce-­admin” and the password you set above.

  • Alternate:

Log into the Admin Console (click on “Admin Console” link, user: xsce-­admin and the password you set above)

  • Select the services you want to install within "Configure­­ services".
Save configuration (green button)
Install Configured options (red button)
The TeamViewer service will automatically install a graphical environment.


Partition structure from centos 7.1 install on 1 TB Hd

 

installing content in the xsce-admin-console

  • installing content is a 3 step procedure

1) xsce-admin-configure services

save configuration
install configured options
  • Wait for succeeded in Utilities-display job status

 

2-)select content

zim files
  • Refresh Catalog first
select the Zims to download
[Install selected Zims]

 

  • NOTE log in as root and rename /library/zims/content test.zim to test1.zia so that it will not interfere with access to Ted files
rachel
  • [Download Rachel Content]

 

3-)schoolserver utilities

to monitor downloads; unzip; and installs
wait for Succeded

 

Rachel errors in xsce

  • retry install rachel several times and it will install successfully bypassing the CRC error stop

Multiple installs of Rachel

Used to store usb_32EN_3.1.5.zip to a ntfs external USB HD
so one can copy usb_32EN_3.1.5.zip to to a xsce install in /library/Downloads and shortcut the download time for rachel in xsce-admin
Rachel install sees zip and starts unzip and install steps immediatly
Boot into root to copy zip file

Connecting to XSCE from a XO-1.5

  • Connect to Internet-in-a-Box in F1

 

  • Connected to Internet-in-a-Box in F1

 

  • Connecting to iiab in Browse

 

  • iiab on XO-1.5

 

  • Rachel

 

logged into Internet in a Box from Ubuntu 14.04 LTS sugar0.107

http://people.sugarlabs.org/quozl/ubuntu/trusty/sugar-0.106/olpc-ubuntu-sugar-14.04.2-desktop-amd64-1436317817.iso


 

  • T-400 laptop
  • NOTE be sure to set in sugar control panel power/Automatic power management [ ] off

Centos 7.3 XSCE Kiwix Server as seen (wirelessly from T-400 PC

  • Rachel also works remotely from Internet in a Box main menu
  • screenshot of Kiwix server on T-400 PC
From T-400 PC running sugar 0.107 from centos 7.3 XSCE server running on NUC i5 (Headless)

 

Launch TeamViewer from top­left "Applications Menu" > Internet > TeamViewer 10

  • Go to and select at bottom page"Configure Each service to Enable/Services Enabled" (in schoolserver/admin/)

Caution for learning only -- traditionally X Windows (graphical environment such as xfce, likewise TeamViewer running within it) should not be intalled on servers, in general.

  • Configure “Setup unattended access...” under TeamViewer’s Connection menu If You Dare.
  • Separately, OpenVPN can also allow remote diagnosis and support (over lower-bandidth connections, without the live visual mentoring/screensharing aspects of TeamViewer of course!)

Install your favorite text editor

For example, run:

yum install emacs

Install GNOME Desktop

yum groupinstall 'GNOME Desktop'
  • Works well in centos7
Installed 12/18/2015 satellit
http://linuxconfig.org/how-to-install-gui-gnome-on-centos-7-linux-system

Install Xfce

If you must have a graphical environment on your server, run:
yum groupinstall xfce

Install browser, at your own risk

Install your favorite browser IF YOU UNDERSTAND ITS INHERENT RISKS TO DESTROYING YOUR SERVER. For example:
yum install firefox

Start the Xfce desktop

startxfce4

To make Xfce start at default boot

cd /etc/systemd/system 
ln -­sf /lib/systemd/system/graphical.target default.target 
If above line fails, run
unlink default.target 
then retry above "ln" command.
  • Reboot to test graphical login, presumably with username: xsce-­admin

Browsing rachel on centos 7.1 xsce

In the centos 7.1 xsce install (which has rachel installed) and logged into the wireless AP Internet in a Box from my T-400 laptop where I have cinnamon 2.6.12 desktop installed in Ubuntu 14.04 /sugar 0.106

http://people.sugarlabs.org/quozl/ubuntu/trusty/sugar-0.106/olpc-ubuntu-sugar-14.04.2-desktop-amd64-1436317817.iso

Start firefox and point it to

http://schoolserver.lan/xs-portal 

which has a rachel entry under wikipedia (Interesting things. menu)

  • Here I can see the videos from kahn; Medline; Hesperian; Kahn health and Medicine; Project gutenburg etc....all mp4 files work
  • from ubuntu 14.04 on laptop ($100 rebuilt T400)
  • Videos are not available using an XO-1.5 software build 13.2.5, but I can see rest of content on the XO that does not use mp4.
  • Of course. No need to mention that here, as it is a known problem with OLPC OS. Why not test with restricted software loaded? You can do that with instructions for adding codecs, or by using a build with restricted software already included. You can contact me by mail for access to that build, as it is not public. --Quozl (talk) 20:00, 10 December 2015 (EST)

F22-XSCE-LIVE

NOTE login to root of booted live; hit return no password to get to # prompt

run "xsceinst" to start the tex installer
use installer to set your root password but please do not use "xsce-admin" as a new user, that one is already taken.

Text-mode Installation

NOTE only there seem to be problems with the formatting of the text mode install

  • logged in to xsce-admin user: Only /home (/dev/sda1)500MB; seems to be available for installs of content. /dev/sda2(931GIB) does not appear to be used.
Install of zims seems to run out of space and stop
http://wiki.laptop.org/go/XS_Community_Edition/Features/Liveiso
  • Download:
http://download.unleashkids.org/xsce/downloads/installer/experimental/ (27-Nov-2015 14:27 1.7G )

Login as root, then run "xsceinst"

 

Proceed through the guided prompts.

Reboot and login as "xsce-admin" with password "g0adm1n"

  • Should you want to create another user please do not use "xsce-admin" as a new user, that one is already taken.
  • Note: Please refrain from using liveinst during testing, trying to implement that functionality in the future.
  • Note-2 On reboot of the server you will re-enter (text install) and be promted to add a user (optional) as XSXE-admin was preconfigured on the DVD.

Install Xfce

If you must have a graphical environment on your server, run:
dnf groupinstall xfce  
f22 uses dnf not yum now

Start the Xfce desktop

(Xfce will not start on next login, unless you arrange for that below)
startxfce4

 

  • Disable screensaver
  • Presuming you've installed Firefox above, go to:
http://localhost

 

http://localhost/admin

 

Logging into XSCE-admin from XO-1.5

 


F22-XSCE-live install to a NUC from a external USB DVD drive

To make Xfce start at default boot

cd /etc/systemd/system 
ln -­sf /lib/systemd/system/graphical.target default.target 
If above line fails, run
unlink default.target 
then try it again.
  • Reboot to test graphical login, presumably with username: xsce-­admin

RACHEL

  • Link to rachel.zip
http://46.235.224.50/rachelusb_32EN/
  • Copy/paste of wget of rachelusb_32EN_3.15.zip from external USB HD to booted XSCE
1-) I copied/paste rachelusb_32EN_3.15.zip to /library/downloads/rachel
logged in as root of the f22-xsce-live install;
2-) log in to xsce-admin and get rachel. Should unzip and install rachel.
Saves redownloading of 21.2 GB file

Fix rachel CRC error

  • Tim Moody 12/11/2015
the rachel problem corrects itself the second time you take the option. the screen should say this.
if it doesn't you don't have the latest version.
when doing an install from an image do you make sure you have the latest fixes by doing the following?
cd /opt/schoolserver/xsce
git pull
./install-console

NOTES

http://wiki.laptop.org/go/XS_Community_Edition/FAQ
https://github.com/XSCE/xsce/blob/master/docs/INSTALL.rst
https://github.com/tim-moody/xsce/blob/nov21/ReleaseNotes6.0.md
http://schoolserver.org/
http://schoolserver.org/FAQ
http://www.ewikitech.com/articles/linux/how-to-mount-ntfs-partition-in-rhel-centos-7/
Used to store usb_32EN_3.1.5.zip to a ntfs external USB HD
so one can copy zip to to a xsce install in /library/Downloads and shortcut the download time for rachel in xsce-admin
http://unix.stackexchange.com/questions/181503/how-to-install-desktop-environments-on-centos-7
Open Educational Resources
https://wiki.sugarlabs.org/go/Open_Educational_Resources
  • see discussion for more links