Create install media for High Sierra
I have the HighSierra.app in my application folder and I used this command in terminal :
sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume
I renamed my usb key MyVolume and it is formated in Mac OS extended jounaled.
I get this error :
Ready to start.
To continue we need to erase the volume at /Volumes/MyVolume.
If you wish to continue type (Y) then press return: y
Erasing Disk: 0%... 10%...
Error erasing disk error number (-69888, 0)
A error occurred erasing the disk.
What is wrong ? Thanks for your help.