Upgrade local boot media from mandriva to ubuntu

From Mille-Xterm

How to upgrade from Mandriva to Ubuntu

• Build ltsp-client-root, and run ltsp-modify-clientroot

• Copy the new kernel and initrd in the update directory from ltsp client root to xtermroot

cp -a /opt/ltsp/i386/updates/<desired directory> /opt/xtermroot/updates/
cd /opt/xtermroot/updates/
rm current
ln -s <desired directory> current

• Now, create a new menu.lst file for ubuntu, and save it to /opt/xtermroot/updates/current/menu.lst

hiddenmenu
timeout 2

title Terminal
root (hd0,0)
kernel /boot/default/vmlinuz panic=15 ro quiet splash media=diskonchip boot=nfs nfsroot=<nfs server ip>:/opt/ltsp/i386
initrd /boot/default/initrd

title Admin
root (hd0,0)
kernel /boot/default/vmlinuz panic=15 ro quiet splash media=diskonchip menu=admin boot=nfs nfsroot=<nfs server ip>:/opt/ltsp/i386
initrd /boot/default/initrd

• Install modified update script rc.update in the xtermroot:

cp <mille-xterm sources>/mdv2ubuntu/rc.update /opt/xtermroot/etc/rc.update
chmod +x /opt/xtermroot/etc/rc.update

• Add a new option named "DO_UPGRADE" in the configurator. Do this on the database server.

su - postgres
psql -d mille
INSERT INTO attributesDef (name,attributeClass,attributeType) VALUES ('DO_UPGRADE', 'mille', 1);
INSERT INTO attributesDefDict (attributesdef_id,value,sortval) VALUES (currval('attributesdef_id_seq'),'Y',0);
INSERT INTO attributesDefDict (attributesdef_id,value,sortval) VALUES (currval('attributesdef_id_seq'),'N',1);

• Create two nodes in the configurator, one with the old configuration, and the other for the new configuration. Here are the typical attributes for old and new config :

• • old configuration

SOUND='Y'
X_MODE_0='1280x1024'
X_MODE_1='1024x768'
X_MODE_2='800x600'
X4_MODULE_01='drm'
X4_MODULE_02='glx'
X_MOUSE_PROTOCOL='auto'
X_MOUSE_DEVICE='/dev/psaux'
USE_XFS='N'
X_HORZSYNC='31-79'
X_VERTREFRESH='56-75'
XkbModel='pc105'
XkbLayout='ca_enhanced'
SCREEN_01='startx'
SCREEN_02='shell'
SCREEN_03='tech'
LOCAL_MEDIA='Y'

• • New configuration

X_MODE_0='1280x1024'
X4_MODULE_01='drm'
X4_MODULE_02='glx'
X_MOUSE_PROTOCOL='auto'
X_MOUSE_DEVICE='/dev/psaux'
USE_XFS='Y'
X_HORZSYNC='31-79'
X_VERTREFRESH='56-75'
XkbModel='pc105'
XkbLayout='ca(fr)'
SCREEN_02='tech'
SCREEN_07='startx-mille-xterm'
PXE_CONFIG='xterm-feisty'
LOCAL_MEDIA='Y'
LBGROUP='feisty'
DO_UPGRADE='Y'

One important thing: don't define anything for screen_01, because a shell is already started there.

Move all thin-clients under the old configuration, and move them under the new configuration to trigger the configuration.