I followed the wiki and I discovered that the script provided for USB Flash preparation has lot's of error and its also outdated. So I made some modifications:
PHP Code:
#!/bin/bash
# Joshua V. Dillon
# jvdillon (a) gmail (.) com
#
# Script to make Mac bootable USB.
#
# Copyright (c) 2011 Joshua V Dillon
# All rights reserved. See end-of-file for license.
# Sun Dec 4 13:23:50 PST 2011 - 01_add-nomodeset-to-usb-iso.patch (poliva)
# Sun Dec 4 13:27:58 PST 2011 - 02_usb-iso-sanity-checks.patch (poliva)
# Modified by Panos Georgiadis at 2/8/2012
# Added Ubuntu 12.04 and fix some bugs in the code
# plug in USB drive and obtain device name:
# dmesg|tail
# unmount it if it was mounted
wget http://cdimage.ubuntu.com/releases/12.04/release/ubuntu-12.04-desktop-amd64+mac.iso
# update these:
UBUNTUISO="/home/panos/Downloads/ubuntu-12.04-desktop-amd64+mac.iso"
USBDEV="/dev/sdb"
# NOTE: the USBDEV should not have any numbers in it. Replace 'X' with the
# appropriate LETTER ONLY.
# 0) sanity checks
mount | grep "${USBDEV}" | awk '{print $1}' | xargs -n1 sudo umount
[ ! -f "${UBUNTUISO}" ] && \
{ echo >&2 "ERROR: Can't find ${UBUNTUISO}";exit 1; }
# 1) format the usb thumb drive
sudo mkfs.vfat "${USBDEV}" -I
# 2) mount the iso
sudo mkdir /media/iso
sudo mount -o loop "${UBUNTUISO}" /media/iso
# 3) mount the usb drive
sudo mkdir /media/external
sudo mount "${USBDEV}" /media/external
# 4) copy the iso contents to usb drive
sudo rsync -avPh --stats /media/iso/ /media/external/
# 5) prep for syslinux
sudo mv /media/external/isolinux /media/external/syslinux
sudo mv /media/external/syslinux/isolinux.cfg /media/external/syslinux/syslinux.cfg
# 6) add nomodeset to grub parameters (needed for 2011 MBA)
sudo sed -i "s/quiet splash/quiet splash nomodeset/g" /media/external/boot/grub/loopback.cfg
sudo sed -i "s/quiet splash/quiet splash nomodeset/g" /media/external/syslinux/txt.cfg
# 7) unmount
sudo umount /media/iso
sudo umount "${USBDEV}"
# 8) make disk bootable
sudo apt-get install syslinux mtools
sudo syslinux "${USBDEV}"
# 9) Remove folders
sudo rm -rf /media/external/
sudo rm -rf /media/iso
# Redistribution and use in source and binary forms, with or
# without modification, are permitted provided that the
# following conditions are met:
# * Redistributions of source code must retain the above
# copyright notice, this list of conditions and the
# following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the
# following disclaimer in the documentation and/or other
# materials provided with the distribution.
# * Neither the name of the author nor the names of its
# contributors may be used to endorse or promote products
# derived from this software without specific prior written
# permission.
#
# THIS SOFTWARE IS PROVIDED BY JOSHUA V DILLON ''AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JOSHUA
# V DILLON BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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Re: MacBookAir4,1 & MacBookAir4,2 (MBA 2011) support
Originally Posted by cargath
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