Ticket #11175 (closed task: fixed)

Opened 3 years ago

Last modified 3 years ago

Add documentation for zeroing Mac OS X guests before using the 'modifyhd --compact' operation

Reported by: socratis Owned by:
Priority: minor Component: documentation
Version: VirtualBox 4.2.4 Keywords: user manual
Cc: Guest type: OSX Server
Host type: other


In page 135 of the latest manual (4.2.4, as of this filing) it mentions the steps to zero out the free space for Windows guests (sdelete -z) and Linux guests (zerofree), but not for Mac OS X guests. An addition something like the following (in bold) would be helpful:

For this operation to be effective, it is required that free space in the guest system first be zeroed out using a suitable software tool. For Windows guests, you can use the sdelete tool provided by Microsoft. Execute sdelete -z in the guest to zero the free disk space before compressing the virtual disk image. For Linux, use the zerofree utility which supports ext2/ext3 filesystems. For Mac OS X guests, you can use the "Erase Free Space..." option in the built-in "Disk Utility" tool provided by Apple.

Not a technical writer, neither a native English speaker here, so feel free to adjust the wording at will ;)

Change History

comment:1 Changed 3 years ago by frank

  • Status changed from new to closed
  • Resolution set to fixed

Thanks for the suggestion. A proper text will be included in the next maintenance release.

comment:2 Changed 3 years ago by socratis

Thanks a lot frank. Confirmed as fixed in 4.2.6.

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