I cannot install Monterey it says "This copy of the Install macOS Monterey application is damaged, and can‘t be used to install macOS
even though it has been downloaded many times and the mac is capable and has enough space.
" various ideas tried one idea was to download Big Sur 11.6.8 and do that first - cannot find where to download previous version software OS though
MacBook Pro 15″, 11.6
Suggestion is to check in Applications Folder for an application called " Install Monterey " and drag and Drop drop Trash.
The Empty the Trash.
What exact version of Big Sur is presently Installed and Operating on this computer right Now ?
UpGrading to Monterey with anything less that Big Sur 11.6.8 is risky and may or may not fail/
If Running Big Sur version ??.?? and wanting to update to current version of Big Sur 11.6.8 --->>
Terminal command below will Only Look for full installers this computer Qualifies to run
softwareupdate --list-full-installers
Should the Big Sur 11.6.8 appear from above, use the below command to Manually Download the Full Installer of Big Sur 11.6.8.
It does Not Auto Launch but places a New Application in Applications Folder called " Install Big Sur "
Launch it and follow the presented instructions
softwareupdate --fetch-full-installer --full-installer-version 11.6.8
Once all the above is done - hopefully successfully - the computer is better positioned to attempt the upGrade to Monterey 12.5.1
EDITED
Suggestion is to check in Applications Folder for an application called " Install Monterey " and drag and Drop drop Trash.
The Empty the Trash.
What exact version of Big Sur is presently Installed and Operating on this computer right Now ?
UpGrading to Monterey with anything less that Big Sur 11.6.8 is risky and may or may not fail/
If Running Big Sur version ??.?? and wanting to update to current version of Big Sur 11.6.8 --->>
Terminal command below will Only Look for full installers this computer Qualifies to run
softwareupdate --list-full-installers
Should the Big Sur 11.6.8 appear from above, use the below command to Manually Download the Full Installer of Big Sur 11.6.8.
It does Not Auto Launch but places a New Application in Applications Folder called " Install Big Sur "
Launch it and follow the presented instructions
softwareupdate --fetch-full-installer --full-installer-version 11.6.8
Once all the above is done - hopefully successfully - the computer is better positioned to attempt the upGrade to Monterey 12.5.1
EDITED
Sorry but Copy and Paste below and spare the frustrations of typing. The smaller error in empty spaces or missing double -- and presto - square one and no go.
softwareupdate --fetch-full-installer --full-installer-version 11.6.8
Signing off for a while a bit, but am sure my more learned colleague maybe around to assist - right @dialabrain 😀?
Thanks for all your help.
the solution was
reboot Mac in recovery mode
reinstall Bug Sue this successfully upgrade to 11.6.8
then download Monterey installer v 12.5.1
installer ran ok
currwntly half way through installation but no warnings this time
what a palaver!!
Found this article on MacWorld that shows a way of getting direct access to V11.6.8 via the app store - https://www.macworld.com/article/671911/how-to-get-old-macos-download-big-sur-catalina-mojave-and-more.html
downloading that now - we will see what happens
" softwareupdate --fetch-full-installer --full-installer-version 11.6.8 " copy and paste as suggested without the Quotation Marks
User wrote " softwareupdate --fetch-full-installer-version 11.6.8 Notice the -- between Installer and full in above
thrunobulax wrote:
Unfortunately I must be getting the syntax wrong since if I type
softwareupdate --fetch-full-installer-version 11.6.8
Indeed. What you typed and…
softwareupdate --fetch-full-installer --full-installer-version 11.6.8
are not the same.
Generally it's a good idea to copy and paste.
Many thanks for the response - I am on V11.6 - I have re-booted in Safe Mode and tried re-downloading Instal Monterey 12.5.1 many times but no joy (always deleted the old one)
I have tried the terminal command you mentioned and this gets me closer it does indeed list a version of Big Sur that I should be able to get - this is
Label: macOS Big Sur 11.6.8-20G730
Title: macOS Big Sur 11.6.8, Version: 11.6.8, Size: 2675026K, Recommended: YES, Action: restart,
Unfortunately I must be getting the syntax wrong since if I type
softwareupdate --fetch-full-installer-version 11.6.8
It just drops me back to the normal prompt and shows al the help files for softwareupdate
I presume I am mis-typing something
Many thanks
I ave successfully downloaded 11.6.8 using the method I found as mentioned earlier via app store and I now have:-
Install macOS Big Sur
However even though I have deleted the 12.5.1 installer and emptied the bin it gives the old familiar message
This copy of the Install macOS Big Sur application is damaged, and can‘t be used to install macOS
I will try using the corrected syntax for the terminal method as you have pointed out - thanks for that
Simon
Tried typing as you suggested and it come back with
Install failed with error: Update not found
Not really complicated had the suggestion to Copy and Paste been followed.
Though, that aside - the the Recovery Mode has been know to work
Good work for a Sunday Afternoon
Cannot install Monterey
