USB boot creation fails

[joecool99]

bizarre issue. fails to create install media.

Last login: Wed Sep 30 15:17:28 on console

bluemoon:~ bluemoon$ sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/aaa --applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app --nointeraction

Password:

Erasing Disk: 0%... 10%... 20%... 30%...100%...

Copying installer files to disk...

The copy of the installer app failed.

.bluemoon:~ bluemoon$


how to fix?

 

[mikeboss]

bizarre issue. fails to create install media.

Last login: Wed Sep 30 15:17:28 on console

bluemoon:~ bluemoon$ sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/aaa --applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app --nointeraction

Password:

Erasing Disk: 0%... 10%... 20%... 30%...100%...

Copying installer files to disk...

The copy of the installer app failed.

.bluemoon:~ bluemoon$


how to fix?

same happened here. delete and re-download from the App Store solved it for me.

 

[joecool99]

just re-downloaded. same issue.
is there a checksum i can run on the the download?