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Thread: howto use Live CD/USB when no GUI appers

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  1. #1
    Join Date
    Aug 2006
    Location
    Sweden
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    Distro
    Lubuntu 12.04 Precise Pangolin

    howto use Live CD/USB when no GUI appers

    hey have been active linux user about 20 year with various distro
    and has for years had sometimes problems to use Live CD to work with GUI, some mac it works without problems
    but with nvidia/ati cards, it becomes worse every distro upgrade,spec GeForce2 MX/MX 400 imac 700/800 ( ilamp )and some laptops have this card
    and the nouveau driver get ugly 8 bit desktop etc.

    This is one way to get the GUI to work with framebuffer tested L/Ubuntu 12.04 ,12.10 ,13.04,14.04 (nvidia card )
    tested L/Ubuntu 12.04 (ati card )
    start live CD and wait for the boot prompt and write

    live video=offb:off nouveau.modeset=0 single (nvidia card )
    live video=offb:off radeon.modeset=0 single (ati card )

    each command with spaces

    and wait one about 5 minutes until the CD stops and you write in the dark

    code
    modprobe nvidiafb mode_option=1024x768-16 (nvidia card some time you need to do this in tty7 i need this in Lubuntu 14.04 daily build)
    (ctrl+alt and then F7 )

    modprobe aty128fb mode_option=1024x768-16 (ati card )

    then the CLI works if not retry .

    code
    Xorg-configure

    give you a xorg.conf if you need one later

    code
    start lightdm

    and you have hopefully a working live CD/USB


    a couple of things that can be helpful to know at least in my case


    with an IMAC G4 Globe 800 WITH Live cd

    *-display
    description: VGA compatible controller
    product: NV11 [GeForce2 MX/MX 400]
    vendor: NVIDIA Corporation
    physical id: 10
    bus info: pci@0000:00:10.0
    version: b2
    width: 32 bits
    clock: 66MHz
    capabilities: vga_controller bus_master cap_list rom
    configuration: driver=nvidiafb latency=248 maxlatency=1 mingnt=5
    resources: irq:48 memory:91000000-91ffffff memory:98000000-9fffffff memory:90000000-9000ffff


    Lubuntu 12.04 and 12.10 cant i get working with toram

    live video=offb:off nouveau.modeset=0 toram single

    Ubuntu 12.04 it works with toram but you need to have
    like 768 MB of RAM and swap active

    Sound works
    Suspend works
    and this is a simpler driver for nivida card (nvidiafb)

    one way too adjust swappiness default 60

    sudo sysctl -w vm.swappiness=1 (1-10 for CPU with less power )

    to check
    cat /proc/sys/vm/swappiness



    mode_option=1024x768-16

    can be other values

    and you can use the code when its installed on hd with some changes

    hope it helps someone

    Persistent Live USB
    and Live USB have been used with succsess Lubuntu 13.04
    edit and now 14.04 on a extern FW


    and dont forget read
    https://wiki.ubuntu.com/PowerPCFAQ

    edit even 13.04 works on this old iLAMP

    edit now 14.04 works on this old iLAMP and zram is used (need to be in tty7 to get modprobe nvidiafb mode_option=1024x768-16 to work then good
    GUI work )

    16 12 2014
    edit i use mate cd https://plus.google.com/111285327879...ts/2dTTB6qBHrA for a test ,works good i use nvidiafb driver
    on a imac 700/800 with Persistent Live FW (its fast with FW disk )
    so 14.04.1 works ok for a old Mac
    Attached Images Attached Images
    Last edited by abtabt; December 16th, 2014 at 08:35 PM. Reason: some more info

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