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Spundle

Should you use a disk image or a volume?

Disk images originated in the 1960s, and are still valuable tools in modern macOS. They have their limitations, though, and in some cases should be replaced by APFS volumes.

January 7, 2023 Macs, Technology

Why won’t that sparse bundle compact?

T T Read More

If you try compacting a sparse bundle, Spundle and hdiutil could return error 1. This explains why, and fixes Spundle to get over it.

August 17, 2022 Macs, Technology, Updates

A user’s guide to Disk Images

They have more options than most new cars. What are they, how do you use them, how to pick the most appropriate, and which tools to use.

July 11, 2022 Macs, Technology

Updates and changing updates

Minor updates to Spundle and Dintch. A bug in SilentKnight and LockRattler. Dropping support for El Capitan and Sierra, and a few obsolete apps.

July 9, 2022 Macs, Technology, Updates

Explainers: Sparse things

Sparse bundles, sparse files, and sparse matrices explained in a nutshell, and how a sparse bundle could have a band which is a sparse file containing a sparse matrix.

April 10, 2021 Macs, Technology

Securing sensitive data

Securing sensitive data from access by others, and safeguarding it from loss of damage, is common. Solutions range from encrypted images to specialist external disks.

December 29, 2020 Macs, Technology

Fitting a quart into a pint pot with sparse bundles

How to store a 400 GB sparse bundle on a volume which only has 200 GB free space – provided that you don’t actually use the space that isn’t there.

September 21, 2020 Macs, Technology

A brief guide to disk image files

So many different types, from read-only disk image .dmg files, to sparse bundles and DVD/CD-R masters. Which to use, and how to create them?

September 19, 2020 Macs, Technology

Spundle 1.3 is now a Universal App and works fully in Big Sur

T T Read More

Now runs properly on all versions of macOS from Sierra to Big Sur beta 3, on both Intel and Apple Silicon Macs.

July 28, 2020 Macs, Technology

Limits to size of sparse bundles, and bugs fixed in Spundle 1.2

T T Read More

Important update for all users, which addresses several bugs in setting the maximum size of sparse bundles.

June 22, 2020 Macs, Technology

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