VMWare Fusion Reclaim Free Space of OS X Guest: Difference between revisions
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=== The Problem === | === The Problem === | ||
As pointed out [https://communities.vmware.com/thread/272457 here], the [[OS X]] guest does not actually delete files, it just won't remember where the file is stored on the disk. So all the file's data is still stored on the disk. We need to permanently delete the file's data, and then the space can be reclaimed. | As pointed out [https://communities.vmware.com/thread/272457 here] and [http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1001934 here], the [[OS X]] guest does not actually delete files, it just won't remember where the file is stored on the disk. So all the file's data is still stored on the disk. We need to permanently delete the file's data, and then the space can be reclaimed. | ||
=== The Solution === | === The Solution === | ||
* Startup your guest os | * Startup your guest os | ||
* Log in as administrator | * Log in as administrator | ||
* Get your root-device (the <tt>/</tt>): | |||
Mac-OS-X-108-Mountain-Lion-VM:~ appleadmin$ mount | Mac-OS-X-108-Mountain-Lion-VM:~ appleadmin$ mount | ||
<b>/dev/disk0s2</b> on <b>/</b> (hfs, local, journaled) | <b>/dev/disk0s2</b> on <b>/</b> (hfs, local, journaled) | ||
| Line 16: | Line 15: | ||
.host:/VMware Shared Folders on /Volumes/VMware Shared Folders (vmhgfs) | .host:/VMware Shared Folders on /Volumes/VMware Shared Folders (vmhgfs) | ||
Mac-OS-X-108-Mountain-Lion-VM:~ appleadmin$ | Mac-OS-X-108-Mountain-Lion-VM:~ appleadmin$ | ||
* Erase the free space: | |||
Mac-OS-X-108-Mountain-Lion-VM:~ appleadmin$ sudo diskutil secureErase freespace 0 /dev/disk0s2 | Mac-OS-X-108-Mountain-Lion-VM:~ appleadmin$ sudo diskutil secureErase freespace 0 /dev/disk0s2 | ||
Started erase on disk0s2 Macintosh HD | Started erase on disk0s2 Macintosh HD | ||
Revision as of 01:15, 14 December 2013
After installing OS X in a VMWare Fusion v6, I noticed that the disk images are continously growing. And VMWare Fusion won't let me reclaim the free space.
The Problem
As pointed out here and here, the OS X guest does not actually delete files, it just won't remember where the file is stored on the disk. So all the file's data is still stored on the disk. We need to permanently delete the file's data, and then the space can be reclaimed.
The Solution
- Startup your guest os
- Log in as administrator
- Get your root-device (the /):
Mac-OS-X-108-Mountain-Lion-VM:~ appleadmin$ mount /dev/disk0s2 on / (hfs, local, journaled) devfs on /dev (devfs, local, nobrowse) map -hosts on /net (autofs, nosuid, automounted, nobrowse) map auto_home on /home (autofs, automounted, nobrowse) .host:/VMware Shared Folders on /Volumes/VMware Shared Folders (vmhgfs) Mac-OS-X-108-Mountain-Lion-VM:~ appleadmin$
- Erase the free space:
Mac-OS-X-108-Mountain-Lion-VM:~ appleadmin$ sudo diskutil secureErase freespace 0 /dev/disk0s2 Started erase on disk0s2 Macintosh HD Creating a temporary file Securely erasing a file Creating a secondary temporary file Mounting disk Finished erase on disk0s2 Macintosh HD Mac-OS-X-108-Mountain-Lion-VM:~ appleadmin$
- Shutdown your VM
- Remove all Snapshots (think of the consequences!)
- Now, reclaim the free space:
File:VMWareFusion6ReclaimSpace01.png
