Error 110 when creating USB boot drive

I have sucessfully upgraded my 2012 Macbook Air to Mojave. Now I want to upgrade the SSD to a 500gb. Sucessfully prepped a USB flash drive to be a bootable installer. Then carefully following instructions, I went to Terminal and copy and pasted the text using my drive name. Enter and password. All seems to go well until the end and I get an error.

couldn't mount dmg /volumes/install macos mojave/install macos mojave.app/contents/sharedsupport/basesystem.dmg (error code 110)mount of basesystem failed. the bless of the installer disk failed.

Any ideas what this means?. I've googled my finger off to no success.

Thanks,

Larry B.

Posted on Nov 24, 2018 11:48 PM

Similar questions

2 replies

Eric Root

Level 10

685,257 points

Nov 25, 2018 8:10 AM in response to Radarlarry

You can make a bootable USB stick to install using these free programs which will do all the work for you.

Bootable USB Flash Drive – Diskmaker X Disk Creator

Radarlarry Author

Level 1

8 points

Nov 25, 2018 10:13 PM in response to Eric Root

These did not work for me either. Does anyone know what this error refers to?

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Error 110 when creating USB boot drive

Welcome to Apple Support Community

A forum where Apple customers help each other with their products. Get started with your Apple Account.

Learn more Sign up