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Re: disk image format
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Re: disk image format


  • Subject: Re: disk image format
  • From: Luther Fuller <email@hidden>
  • Date: Fri, 24 Oct 2008 14:26:26 -0500

I found a problem; fixed it; and now have the info I needed.
The hdiutil imageinfo verb always returns SPRS for a .sparseimage file (never UDSP).
This happens in both Tiger and Leopard.
The format table in Tiger shows
UDSP - SPARSE (grows with content)
and not SPRS.
SPRS seems to be undocumented.


On Oct 24, 2008, at 10:37 AM, Luther Fuller wrote:

In Leopard (10.5.5), the format table for the hdiutil convert verb shows ...

	UDSP - SPARSE (grows with content)
	UDSB - SPARSEBUNDLE (grows with content; bundle-backed)

However, the hdiutil imageinfo verb returns the SPRS format for a .sparseimage file, not UDSP.

The table in Tiger should show only ...

	SPRS - SPARSE (grows with content)

Can anyone running Tiger confirm this? Thanks.

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References: 
 >disk image format (From: Luther Fuller <email@hidden>)

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