Re: I've messed up a partition....
Re: I've messed up a partition....
- Subject: Re: I've messed up a partition....
- From: Anton Altaparmakov <email@hidden>
- Date: Tue, 11 Mar 2008 22:41:39 +0000
Hi,
Yes you have messed up... If you are VERY lucky you can get things
back. Download TestDisk, see here:
http://www.cgsecurity.org/wiki/TestDisk
Run it, and as long as at least some of the NTFS metadata or its
backups is not destroyed it should be able to get your NTFS partition
back. Note you may loose the HFS+ partition as a consequence as I do
not think TestDisk will be able to shrink the HFS+ partition again if
you have grown it...
So I would suggest: take a backup of all the HFS+ data, then run
TestDisk to get the Windows partition back, then back that data up,
then reformat the machine creating partitions as you wish and restore
both backups. You could also try shrinkg the HFS+ partition to its
old size, then run TestDisk to recover the Windows partition so you do
not have to reformat the disk but I am not convinced that doing this
would not result in your NTFS partition being damaged even more so I
would not recommend trying it without doing a backup of the entire
disk first so you can put it back it if backfires...
Or if you had backups already (you really should have backups before
starting on doing such silly things to your disk!) then simply
reformat it now, then restore the data from both HFS+ and NTFS and all
will be fine.
Hope this helps.
Best regards,
Anton
On 11 Mar 2008, at 12:09, Colin Kavanagh wrote:
Hello,
I came in to work this morning and acted without thinking. Here's what
happened:
This guy has a mac book pro, partitioned with bootcamp:
Mac OS 10.5.2=100GB,
Windows XP service pack 2=100GB
He asked me to repartition it, if possible without formating. So,
after
briefly asking a colleague, i went into disc utility, fiddled round
with
the partitioning scheme / slider, it indicated that it was possible,
said 'no volumes would be erased'. Didn't work when trying to make the
Mac partition bigger, so tried to make the Windows partition smaller.
It came up with a negative value, we took a chance that it was just
going to reduce the size........Anyway, now the windows partition has
disappeared. Rebooted, no luck, doesn't appear at all in disc utility,
it's missing.
In Terminal:
cd /volumes
ls -al
just reveals Macintosh HD.
I downloaded refit.sourceforge.net which reported this:
Report for internal hard disk ***
Current GPT partition table:
# Start LBA End LBA Type
1 40 409639 EFI System (FAT)
2 409640 243417127 Mac OS X HFS+
Current MBR partition table:
# A Start LBA End LBA Type
1 1 488397167 ee EFI Protective
MBR contents:
Boot Code: Unknown, but bootable
Partition at LBA 40:
Boot Code: None (Non-system disk message)
File System: FAT32
Listed in GPT as partition 1, type EFI System (FAT)
Partition at LBA 409640:
Boot Code: None
File System: HFS Extended (HFS+)
Listed in GPT as partition 2, type Mac OS X HFS+
So it is still there.
Does anyone have any suggestions on how to bring this Windows
partition
back?
Many thanks for reading
--
Anton Altaparmakov <aia21 at cam.ac.uk> (replace at with @)
Unix Support, Computing Service, University of Cambridge, CB2 3QH, UK
Linux NTFS maintainer, http://www.linux-ntfs.org/
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