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Thread: Live USB boot problem

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  1. #1
    Just burned his ISO
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    Default Live USB boot problem

    hi,

    I'm trying to make a Live USB of BT4, but I keep running into an error I don't know how to get around.

    I used Unetbootin to write the BT4-final ISO image to a 8GB thumbstick, It seems to complete fine.

    However, when I try to boot from the USB drive it comes up with the following:

    SYSLINUX 3.72 2008-09-25 EBIOS COPYRIGHT (C) 1994-2008 H. PETER ANVIN
    Could not find kernel image : Linux
    boot : _

    I tried typing "startx" or running other files from this prompt but I get the same response each time although "linux" is exchanged with whatever I type at the prompt.

    I tried downloading the BT4 ISO again, and made several attempts to make a new thumb all without prevail.

    I don't suppose I'm doing something wrong but can't find any clues as to what I'm missing here, hopefully someone can send me in the right direction?

    thanks.
    Last edited by ripcase; 01-31-2010 at 09:58 AM.

  2. #2
    Super Moderator Archangel-Amael's Avatar
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    Default Re: Live USB boot problem

    Did you check the md5sum?
    Also hardware specs will help us to help you.

  3. #3
    Just burned his ISO
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    Default

    Hi Amael,

    thanks for the reply.

    yeah MD5 is verified.

    trying to run on a laptop:
    AMILO Pa 1510
    AMD Turion 64x2 TL-50 1,6GHz
    1,5 GB RAM
    ATI Radeon Xpress 1100


    nothing too exotic I presume...


    I read that this error might have something to do with the syslinux.cfg file, all paths seem to be correct tho.

    here is the print of the thumbstick I've made as well:

    H:\>dir /p
    Volume in drive H has no label.
    Volume Serial Number is EC0F-88A2

    Directory of H:\

    14-12-2009 00:41 4.690.640 ubnkern
    01-01-2010 00:15 8.555.925 ubninit
    29-01-2010 19:20 <DIR> boot
    29-01-2010 19:20 <DIR> casper
    29-01-2010 19:20 25 ubnpathl.txt
    10-01-2010 18:48 782 md5sum.txt
    29-01-2010 19:24 292 ubnfilel.txt
    30-01-2010 12:54 1.633 syslinux.cfg
    29-01-2010 19:24 145.680 vesamenu.c32
    10-01-2010 18:48 2.048 boot.catalog
    8 File(s) 13.397.025 bytes
    2 Dir(s) 6.417.813.504 bytes free

    H:\>


    hope you can help me out

    I was also wondering if the syslinux.cfg file is what it's supposed to be, do you know what it should state?

    this is it now:

    default vesamenu.c32
    prompt 0
    menu title UNetbootin
    timeout 100

    label unetbootindefault
    menu label Default
    kernel /ubnkern
    append initrd=/ubninit BOOT=casper boot=casper nopersistent rw quiet vga=0x317

    label ubnentry0
    menu label Start BackTrack FrameBuffer (1024x768)
    kernel /boot/vmlinuz
    append initrd=/boot/initrd.gz BOOT=casper boot=casper nopersistent rw quiet vga=0x317

    label ubnentry1
    menu label Start BackTrack FrameBuffer (800x600)
    kernel /boot/vmlinuz
    append initrd=/boot/initrd800.gz BOOT=casper boot=casper nopersistent rw quiet vga=0x314

    label ubnentry2
    menu label Start BackTrack Forensics (no swap)
    kernel /boot/vmlinuz
    append initrd=/boot/initrdfr.gz BOOT=casper boot=casper nopersistent rw vga=0x317

    label ubnentry3
    menu label Start BackTrack in Safe Graphical Mode
    kernel /boot/vmlinuz
    append initrd=/boot/initrd.gz BOOT=casper boot=casper xforcevesa rw quiet

    label ubnentry4
    menu label Start Persistent Live CD
    kernel /boot/vmlinuz
    append initrd=/boot/initrd.gz BOOT=casper boot=casper persistent rw quiet

    label ubnentry5
    menu label Start BackTrack in Text Mode
    kernel /boot/vmlinuz
    append initrd=/boot/initrd.gz BOOT=casper boot=casper nopersistent textonly rw quiet

    label ubnentry6
    menu label Start BackTrack Graphical Mode from RAM
    kernel /boot/vmlinuz
    append initrd=/boot/initrd.gz BOOT=casper boot=casper toram nopersistent rw quiet

    label ubnentry7
    menu label Memory Test
    kernel /ubnkern
    append initrd=/ubninit

    label ubnentry8
    menu label Boot the First Hard Disk
    kernel /ubnkern
    append initrd=/ubninit
    Last edited by lupin; 01-31-2010 at 04:22 AM. Reason: Merging....

  4. #4
    Just burned his ISO Cabs21's Avatar
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    Default Re: Live USB boot problem

    Try this video link. Follow the example exactly and it will work. You will have to boot to Live CD but it will work as a persistent Boot due to the changes made in the video. Good luck.

    Video

  5. #5
    Just burned his ISO
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    Default Re: Live USB boot problem

    when using unetbootin did you set the drop down menu to bt3

  6. #6
    Junior Member
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    Default Re: Live USB boot problem

    This is how l did it on my 8gb usb drive: [l did it all on Ubuntu Super OS]

    1/ Put usb in drive [download the BT4-FINAL-ISO FIRST OF COURSE]

    2/ Open Terminal window and enter:
    mkfs.vfat /dev/sdb1 [or whatever your usb is - mine is sdb1]

    3/ Next Enter:
    mkfs.ext3 -b 4096 -L casper-rw /dev/sdb2

    After it completes:
    4/ Then you just use Unetbootin with the BT4-FINAL-ISO

    5/ Open the menu.lst in boot/grub:

    cd /mnt/sda1/boot/grub

    vi menu.lst

    Change default at top to 4 instead of 0
    And the kernel line below should be changed to vga=0x317
    Save and reboot.
    it should start from the persistent live-cd or you can go to that line yourself.
    Good Luck.

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