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Updated May 12, 2008 by sdavilla
Support  

Support/FAQ

This is a collection of various hint/tips to solutions for common errors or problems.


My USB Flash drive does not boot

A few things to check.

  1. Is the correct boot.efi present on the "recovery" partition? The md5 checksum for the correct boot.efi is
  2. md5sum boot.efi
    280323d8700e4cfef15116f7e50590e3  boot.efi
  3. Does the "recovery" partition have the correct GUID? While you can't see the GUID value, the patched parted should show the "atvrecv" flag which indicates the correct GUID.
  4. sudo parted -s /dev/sdb unit s print
    
    Model: SanDisk Cruzer Micro (scsi)
    Disk /dev/sdb: 501759s
    Sector size (logical/physical): 512B/512B
    Partition Table: gpt
    
    Number  Start   End      Size     File system  Name     Flags  
     1      40s     69671s   69632s                primary  atvrecv
  5. Does the "recovery" partition have the proper files?
  6. ubuntu:~$ ls -l /media/Recovery
    total 6148
    -rw-r--r-- 1  999  999  298800 2008-04-27 22:00 boot.efi
    -rw-r--r-- 1 root root     231 2008-03-15 23:31 boot_linux.sh
    -rw-r--r-- 1 root root   68619 2008-03-01 11:27 BootLogo.png
    -rw-r--r-- 1 root root     536 2008-03-16 18:05 com.apple.Boot.plist
    -rwxr-xr-x 1 root root 5912292 2008-04-26 20:49 mach_kernel
    -rw-r--r-- 1 root root      57 2008-03-15 23:31 patchstick.sh
    drwxr-xr-x 1 root root       4 2008-01-26 13:22 System
  7. Did you force a "recovery" boot by holding the "menu and "-" buttons down on the Apple IR Remote?

X11 fails to launch

X11 fails to load, you make changes in "/etc/X11/xorg.conf" to fix the problem and X11 still fails to load. WTF. X11 seems to be ignoring my changes.

Some Linux installers will place "/etc/X11/xorg.conf.failsafe" for X11 to use if it encounters a failure in loading "/etc/X11/xorg.conf". Sometimes this failsafe is not correct and will also fail to load. Look at the "/var/log/Xorg.0.log" and you might see this

(++) Using config file: "/etc/X11/xorg.conf.failsafe"

Once X11 starts using the "/etc/X11/xorg.conf.failsafe", it becomes "stuck" using it and will not use "/etc/X11/xorg.conf".

The solution is to "sudo rm "/etc/X11/xorg.conf.failsafe". Now you can fix "/etc/X11/xorg.conf" and move on.

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