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MandrakeMove README
General overview.
Mandrake Move is a "live" Mandrake Linux Discovery based system,
an OS which boots off a removable device (a CDROM in our case)
without needing any installation on hard drive (it doesn't need
any harddrive in computer actually).
Mandrake Move brings two main innovations:
- ability to eject the CDROM which Move was booted from, still
running a multimedia player, so that user can play
ogg/mp3/vcd/avi/dvd discs without needing a second CDROM drive
- transparently saving user and system data to a USB key
Technical aspects.
CDROM ejecting.
Works by killing most unneeded running application (open-office,
frozen-bubble, gimp, etc), then transfering X/kde/totem files
(already pertaining to a loopback) into memory, then CDROM drive
is not busy anymore.
Paths of boot.
MandrakeMove should work in three different paths of boot:
- mode 1: no USB key
automatic X configuration, DrakX starts up, asks for language,
license, asks for a key (we answer we have no key), possibly
for mouse and keyboard, username/password, auto-detects sound,
printer and network devices, starts up KDE
this is a normal live mode, nothing particular
- mode 2: USB key but doesn't yet contain MandrakeMove files
automatic X configuration, DrakX starts up, asks for language,
license, set up configuration files on the key, possibly asks
for mouse and keyboard, username/password, starts up KDE
once KDE is booted, we are in full Move move, in which user
data and system configuration data are saved on the usb key
the USB key is mounted on /home, and some symlinks are created
from a selection of /etc system files to a per-host directory
on the USB key (based in /home/.sysconf)
a daemon is monitoring modifications made to /etc, and
transparently copy modified/new files to the USB key; hence
Mandrake Move is much extensible, any modification on /etc will
be saved
- mode 3: USB key, contains MandrakeMove files
- 3.1: we are running on the same machine
DrakX GUI not even shows up as we use existing configuration
files, we set up stuff of the usb key (/home etc) and we start
up KDE
- 3.2: we are running on another machine
We use language, username/password, and homedir from USB key,
but other system configuration need to be re-asked:
automatic X configuration, DrakX starts up, possibly asks for
mouse and keyboard, starts up KDE
gc, pixel
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