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Ventura 13.4 makes network diagnostic logging harder

Enabling CFNetwork diagnostic logging now requires SIP to be disabled in macOS 13.4.

May 23, 2023 Macs, Technology

How to check whether an SSD gets trimmed

Why should you trim an SSD? How to tell whether an SSD needs trimming, finding out whether it has trim support, and whether it does trim.

April 6, 2023 Macs, Technology

How APFS mounts encrypted volumes, snapshots, cryptexes and more

Details of what happens when an APFS (Encrypted) volume is mounted, when mounting a Time Machine snapshot, unmounting a volume, and loading a Cryptex.

April 3, 2023 Macs, Technology

How APFS mounts an external disk: 1 Basics

A step-by-step account of how Disk Arbitration and APFS mount an external disk, from handling its partitions, to performing trims.

March 30, 2023 Macs, Technology

Dive into APFS in Mints version 1.11

T T Read More

Update adds a 22nd tool, to display a log extract tailored to examining the mounting of APFS disks. Also valuable for any APFS investigation.

March 28, 2023 Macs, Technology, Updates

How does an Apple silicon Mac mount a Thunderbolt disk?

Traced from recognition of the cable connection, through establishing PCI streams, to mounting the volume with APFS, and the bonus of a good trim at the end.

March 24, 2023 Macs, Technology

Log Literacy: Hunting bugs with Ulbow’s Chart View

T T Read More

I was having problems in the Twitter app, with it stealing 100% CPU and upsetting WindowServer. Here’s how I discovered what the problem was.

March 17, 2023 Macs, Technology

Log Literacy: Extending Ulbow with predicates, filters & styles

T T Read More

How to develop predicates, filters and styles interactively, then add them to Ulbow’s settings. And how to transfer those settings to another Mac.

March 10, 2023 Macs, Technology

Removing privacy censorship from the log

T T Read More

A revamped configuration profile to remove censored private data from log entries, and how to get network diagnostic data too.

March 8, 2023 Macs, Technology

Do Ventura’s signature checks work?

T T Read More

Are additional Gatekeeper checks in Ventura effective, and worth the effort? Surely malware can bypass them easily.

March 7, 2023 Macs, Technology

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