Slackware 12.2 - Syslinux
=========================

Public domain    
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### df -hT
    
    Filesystem    Type    Size  Used Avail Use% Mounted on
    /dev/sda2 reiserfs     19G   17G  2.5G  87% /
    /dev/sda4 reiserfs     23G  1.4G   22G   6% /storage
    /dev/sda3     ext3     14G  509M   13G   4% /mnt/lfs
    /dev/sdb1     vfat    3.8G  9.1M  3.8G   1% /mnt/usb
    
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### tree /mnt/usb/
    
    /mnt/usb/
    |-- boot
    |   |-- vmlinuz-huge-smp-2.6.21.5-smp
    |   `-- vmlinuz-huge-smp-2.6.27.7-smp
    |-- install.sh
    `-- syslinux
        |-- ldlinux.sys
        |-- lilo
        |-- mbr.bin
        |-- menu.c32
        |-- syslinux
        |-- syslinux.cfg
        `-- vesamenu.c32
    
    2 directories, 10 files
    
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### /mnt/usb/syslinux/syslinux.cfg
     
    PROMPT 0
    TIMEOUT 100
    DEFAULT /syslinux/menu.c32
    MENU TITLE SysLinux Bootloader
    
    LABEL S120
    MENU LABEL Slackware 12.0 
    MENU DEFAULT
    KERNEL /boot/vmlinuz-huge-smp-2.6.21.5-smp
    APPEND ro root=/dev/sda2
    
    LABEL S122
    MENU LABEL Slackware 12.2
    KERNEL /boot/vmlinuz-huge-smp-2.6.27.7-smp
    APPEND ro root=/dev/sda2
    
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### /mnt/usb/install.sh
    
    #!/bin/bash
    
    set -e
    TARGET=""
    MBR=""
    
    # Find out which partition or disk are we using
    MYMNT=$(cd -P $(dirname $0) ; pwd)
    while [ "$MYMNT" != "" -a "$MYMNT" != "." -a "$MYMNT" != "/" ]; do
       TARGET=$(egrep "[^[:space:]]+[[:space:]]+$MYMNT[[:space:]]+" /proc/mounts | cut -d " " -f 1)
       if [ "$TARGET" != "" ]; then break; fi
       MYMNT=$(dirname "$MYMNT")
    done
    
    if [ "$TARGET" = "" ]; then
       echo "Can't find device to install to."
       echo "Make sure you run this script from a mounted device."
       exit 1
    fi
    
    if [ "$(cat /proc/mounts | grep "^$TARGET" | grep noexec)" ]; then
       echo "The disk $TARGET is mounted with noexec parameter, trying to remount..."
       mount -o remount,exec "$TARGET"
    fi
    
    MBR=$(echo "$TARGET" | sed -r "s/[0-9]+\$//g")
    NUM=${TARGET:${#MBR}}
    cd "$MYMNT"
    
    clear
    echo "-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-"
    echo "                        Welcome to Slax boot installer                         "
    echo "-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-"
    echo
    echo "This installer will setup disk $TARGET to boot only Slax."
    if [ "$MBR" != "$TARGET" ]; then
       echo
       echo "Warning! Master boot record (MBR) of $MBR will be overwritten."
       echo "If you use $MBR to boot any existing operating system, it will not work"
       echo "anymore. Only Slax will boot from this device. Be careful!"
    fi
    echo
    echo "Press any key to continue, or Ctrl+C to abort..."
    read junk
    clear
    
    echo "Flushing filesystem buffers, this may take a while..."
    sync
    
    # setup MBR if the device is not in superfloppy format
    if [ "$MBR" != "$TARGET" ]; then
       echo "Setting up MBR on $MBR..."
       ./syslinux/lilo -S /dev/null -M $MBR ext # this must be here to support -A for extended partitions
       echo "Activating partition $TARGET..."
       ./syslinux/lilo -S /dev/null -A $MBR $NUM
       echo "Updating MBR on $MBR..." # this must be here because LILO mbr is bad. mbr.bin is from syslinux
       cat ./syslinux/mbr.bin > $MBR
    fi
    
    echo "Setting up boot record for $TARGET..."
    ./syslinux/syslinux -d syslinux $TARGET
    
    echo "Disk $TARGET should be bootable now. Installation finished."
    
    echo
    echo "Read the information above and then press any key to exit..."
    read junk
    
    
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### Resources
    
    http://syslinux.zytor.com/
    http://www.slax.org/
    
    
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_BY: Pejman Moghadam_  
_TAG: syslinux_  
_DATE: 2010-07-20 14:45:35_