5 Replies Latest reply: Apr 6, 2011 7:58 AM by Vraiment
Vraiment Level 1 Level 1
Before mods delete/close/move my post 'cause I'm sure there exist hundred of related problems to this let me explain.

I study Engineering in Computational Systems, for my Digital Design class I need some software that only exist for Windows (I've been searching the web looking for alternatives for Mac without success)... So I decided I'd install BootCamp and Windows 7, but I got the **** "cannot resize partition" error...

So here's the deal... I CAN'T make a backup, my external hard drive is damaged, I've been searching and I found that this problem is 'cause BootCamp can't move big files or stuff like that so to fix the problem I have to defrag the hard disk and here comes another problem, I can't afford iDefrag neither...

Any help for defrag or resize my Mac OS X partition?

MacBook Pro 13" 5, Mac OS X (10.6.4)
  • The hatter Level 9 Level 9
    Usually when I see "Cannot resize..." it is because the Windows partition was too small, or they need more room for OS X files. Not because they got the error message from Boot Camp Assistant (which tells you to reformat and restore after you have a backup).

    Step #1 is (always) backup before making changes.
    Real easy... buy an external, you will need backups for Mac OS and probably Windows. you will want to be able to run OS X off external too at some point.

    It isn't because there are big files, it is that they can't be moved.

    The free space has to be contiguous, not fragmented, also, in order to create a slice for Windows.

    I assume it won't work with a VM running under/inside OS X so you need to run Windows natively.

    Some people have bought iDefrag ($49?) and results are anywhere from good to mixed to didn't work.

    You are right, the question has been asked... about 999 times in the last two years.
  • Vraiment Level 1 Level 1
    So if I don't make a backup and reinstall OS X I won't be able to install Boot Camp right now, I am right?

    I can't afford an external HDD right now...

    By the way, I tried with GParted at Ubuntu's live CD, I got the following error 4 times:

    +An extent has not been relocated.+

    Thanks by the way
  • Beachy Level 1 Level 1

    There are many options given on the net, many are time consuming and may not work (trust me i've tried).
    An option that worked for me is to run a disk repair with Disk Utility.
    I tried partitioning manually after boot camp failed and got the message - "error 0".
    If i remember correctly, this is some sort of file mapping error in the HD which is fixed with Disk Utility, and now Boot Camp can make any partition size for me.
    Hope this works for anyone else having this problem and saves the time of backing up and reinstalling.
  • The hatter Level 9 Level 9
    If you can't afford to backup then you are really going to wish you had.

    Can't help.
  • Vraiment Level 1 Level 1
    There is no solution... You must make a backup...