Shirt Pocket Discussions  
    Home netTunes launchTunes SuperDuper! Buy Now Support Discussions About Shirt Pocket    

Go Back   Shirt Pocket Discussions > SuperDuper! > Frequently Asked Questions

 
 
Thread Tools Rating: Thread Rating: 3 votes, 4.00 average. Display Modes
Prev Previous Post   Next Post Next
  #1  
Old 06-18-2005, 09:09 PM
dnanian's Avatar
dnanian dnanian is offline
Administrator
 
Join Date: Apr 2001
Location: Weston, MA
Posts: 13,830
Send a message via AIM to dnanian
I can't boot from my SuperDuper! copy. Why?

First, I'm assuming that you made a full "Backup - all files" (or a Sandbox) with either Erase, then copy or Smart Update. Copy newer and Copy different do not guarantee bootability, and should not be used for bootable copies.

Given that, the answer to this is easy for USB drives used with Power PC Macs: Power PC Macintosh computers don't support booting from USB, whether USB 1 or 2. No program can create a bootable USB volume for Power PC Macintoshes at this time. Intel Macs, however, work fine with USB 2 drives.

FireWire drives are trickier. Some FireWire drives do not support booting Macintosh computers, even though this isn't indicated on the packaging. In fact, many drives indicate they're Mac-compatible, even though they don't support booting.

In general, we recommend sticking with one of the major Mac-friendly manufacturers such as OWC, WiebeTech, LaCie and Maxtor. They work hard to ensure their drives are fully compatible, and traditionally do extensive testing with current Mac hardware.

The most important thing is to have an Oxford-based FireWire bridge chipset. Prolific and Initio "Oxford compatible" chipsets often have problems with OSX, both when copying and trying to boot.

Finally, since some release of 10.4 after 10.4.0, probably right around the time Boot Camp came out, Disk Utility started being able to format a partition as HFS+, even though the underlying partition scheme is Master Boot Record (Windows).

Macs cannot start up from volumes that are partitioned with Master Boot Record, regardless of chip. So, make sure your external drives are partitioned with APM (if you want them to work with both Intel and Power PC Macs) or GUID (if you're only working with Intel).
__________________
--Dave Nanian

Last edited by dnanian; 08-14-2006 at 02:31 PM. Reason: Added additional information about drives and partition types
Reply With Quote
 


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Booting from backup guruuno General 27 10-16-2009 11:53 PM
Help needed - shell script to boot up from source drive after copy completes jaimev General 3 05-27-2006 08:22 AM
SD! & HDD copy speed fun DaleMeyn General 3 03-20-2006 04:24 PM
SuperDuper does not copy from my internal to my external harddisk... as.contact General 9 07-16-2005 07:07 PM
Error: No space left on device tradervic General 11 06-29-2005 04:50 PM


All times are GMT -4. The time now is 07:22 AM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.