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iCloud Drive

Solving problems with iCloud Drive

What do Apple and other sources recommend to fix problems getting files to upload to iCloud Drive, or to sync with it?

March 27, 2018 Macs, Technology

Inside iCloud Drive: In the log in Sierra and High Sierra

Looking inside iCloud when copying a file across to cloud storage. How CloudDocs, CloudKit, MMCS, and other subsystems work together.

March 26, 2018 Macs, Technology

Preparing or downloading? iCloud’s odd interface

What does iCloud mean when its says it’s ‘preparing’ a file? Seeing through the smoke and mirrors of iCloud Drive.

February 16, 2018 Macs, Technology

xattr: com.apple.icloud.itemName, iCloud Drive placeholder filename

A tag containing the filename of a file still held remotely in iCloud, attached to a stub. Only in iCloud files.

January 30, 2018 xattr

How iCloud marks the place of documents stored remotely

Scripts and apps which could look at folders in iCloud should watch for stub files. Here’s how they work, and why they can mislead.

January 30, 2018 Macs, Technology, xattr

xattr: com.apple.cscachefs, iCloud Drive app tag

Its purpose is unknown, but it is automatically attached to contents of apps downloaded from iCloud Drive, if to a different system from the uploader.

January 29, 2018 xattr

iCloud Drive has user modes, and tags transferred apps

How the two user modes differ, what iCloud Drive does to files transferred between two different clients, and an apparently unique tag it applies to apps which pass through.

January 29, 2018 Macs, Technology, xattr

Which file systems and Cloud services preserve extended attributes?

Have you been warned not to use extended attributes because they aren’t supported beyond macOS? But they are: here are details of file systems and Cloud services.

January 12, 2018 Macs, Technology, xattr

Last Week on My Mac: Off to a good start, then

Hectic with SIP problems in High Sierra, the Meltdown and Spectre vulnerabilities, then iCloud Drive’s strange stripping of extended attributes.

January 7, 2018 Macs, Technology, xattr

iCloud Drive can strip (meta)data from your documents

Don’t use iCloud Drive to copy docs between Sierra and High Sierra, as they may well lose metadata in the process. Bug or feature?

January 6, 2018 Macs, Technology

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