mnahum
Enthusiast
Enthusiast

How to install a Catalina VM on Catalina Host with Fusion 11.5

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Hello,

I tried multiple things ... but without success ... I need to install a Catalina VM on my Catalina host.

Fusion said there is no recovery to do it

giving the app file is not working

generate a dmg is not working.

any idea how to do?

1 Solution

Accepted Solutions
bogdam
Contributor
Contributor

Create your own install media:

hdiutil create 1015.dmg -size 8g -layout SPUD -fs HFS+J

hdiutil attach 1015.dmg -noverify -nobrowse -mountpoint /Volumes/InstallCatalina

sudo /Applications/Install\ macOS\ Catalina\ Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/InstallCatalina

hdiutil detach /Volumes/Install\ macOS\ Catalina\ Beta

hdiutil resize -sectors min 1015.dmg

Use the 1015.dmg in Fusion.

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8 Replies
Mikero
Community Manager
Community Manager

Giving it the .app should work, what's happening instead in your case?

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Michael Roy - PM/PMM: Fusion & Workstation
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mnahum
Enthusiast
Enthusiast

I had an error message: "Unable to create the installation medium"

To fix, I regenerated the media to a USB key with the proper commande and this time it worked...

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wqcoleman
Contributor
Contributor

Me as well, cannot install the latest Catalina beta. 

Getting the following error "Unable to create the installation medium"

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bogdam
Contributor
Contributor

Create your own install media:

hdiutil create 1015.dmg -size 8g -layout SPUD -fs HFS+J

hdiutil attach 1015.dmg -noverify -nobrowse -mountpoint /Volumes/InstallCatalina

sudo /Applications/Install\ macOS\ Catalina\ Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/InstallCatalina

hdiutil detach /Volumes/Install\ macOS\ Catalina\ Beta

hdiutil resize -sectors min 1015.dmg

Use the 1015.dmg in Fusion.

d3photodotcom
Contributor
Contributor

This worked perfectly. Thank you!

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d3photodotcom
Contributor
Contributor

You should accept the answer using ​hdiutil​ as that resolves your issue.

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carbonrain
Contributor
Contributor

This works flawlessly with macOS Big Sur. Thank you!

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salsafox
Contributor
Contributor

worked.  thank you bogdam.   I also need to do this on an external HFS volume as the internal SSD gave errors. 

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