Tahoe 26.0.1 update

Below is a pre- perpared reply from a Standard Trouble Shooing regarding this issue

There are factors:

Some which are beyond your control and those which are totally under your control

Like poor Wifi connection

Slow wifi connection

Too many other people downloading at the same time and Apple  Servers are overloaded

Software on the computer interfering with the download process including AntiVirus Software

Notation: Disabling the AV Software may or may not solve the issue.

Removal of the AV Software may increase the chances of the download to perform as expected.

Running behind a Commercial VPN which may increase Packet losses or corruption of the download 

Turn off any Third Party Two Way Firewall and try again 

If via wifi  & too many Other devices using the wifi at the same time reducing the Bandwidth to your computer. 

Best Results are via Ethernet Cable to Router

Restart in Safe Mode. This will perform a Disk Repair, clear cache files and only load Apple Software, extensions and fonts. The boot up will be slow and can take some time - Normal 

Try Again using the Software Update Applet in System Preferences / Setting 

Worst case - Restart in Recovery Mode and choose Reinstall macOS. 

This in theory will pull the latest version of macOS this computer qualifies to run 

neuroanatomist wrote:

At this point, Apple is all green including macOS Software Update.

Apple - Support - System Status

I updated to 26.0.1 less than an hour ago, the whole process (download and install) took 15-20 min on my M4 Pro MBP.

If one whats to trust the Statue site Apple - Support - System Status for Software updates

One is welcome to do so.

As outlined earlier re Monday experience - I would agree

If doing so today, Tuesday on a M4 machine - not so much

Will try later today on another M4 Laptop currently with Tahoe 26.0

Same wifi 6E, same physical proximity to Route and yes same Fibre Optic 1 GB Up / Down speeds

Thanks again

Finally this afternoon the M2 updated via the Software Update method.

Must have been too soon

Thank you

1 M4 Desktop - 17 minutes start to finish

1 M4 Laptop - same start to finish

1 M2 Desktop, as of last night. Still struggling.

Let me see how it goes today, Tuesday

The physical distance between your location and mine is about 446 miles · 717.7 kilometers

Now servers and which one connects to from Apple

Well, to honest , this way above both my interest level or knowledge base level

As a character in the TV Series " Longmire " frequently says " It is what it is "

To keep this alive. my friend

Booted the M4 MBA ruining Tahoe 26.0.1

Ran the System Setting >> General >> Software Update

Presto, found the Tahoe 26.1 Update measuring in at about 13.xx GB

Started to download, no issue and stated the installation - no issue

Booted the M2 Mac Mini also with Tahoe 26.0.1

Ran the software update and Presto - No Update available

Ran the Terminal command on this machine >> softwareupdate --list-full-installers <<

Nada

Title: macOS Tahoe, Version: 26.0.1, Size: 16550558KiB, Build: 25A362, Deferred: NO

* Title: macOS Tahoe, Version: 26.0, Size: 16550645KiB, Build: 25A354, Deferred: NO

Ran below command

softwareupdate --fetch-full-installer --full-installer-version 26.1

softwareupdate --fetch-full-installer --full-installer-version 26.1

Scanning for 26.1 installer

Install failed with error: Update not found 

Any insights, they would be welcome and thank you

🦉-53

Thank you for your interest and all you have experienced

Let me digest this and get back to you at a later time