Oui, c'est plus favorable, il y a les 4 fichiers dont le lanceur boot.efi :
Bloc de code:
MacBook-Pro-de-Hervieu:~ hervieuhelene$ bless --info /Volumes/Install\ OS\ X\ El\ Capitan
finderinfo[0]: 712 => Blessed System Folder is /Volumes/Install OS X El Capitan/.IABootFiles
finderinfo[1]: 730 => Blessed System File is /Volumes/Install OS X El Capitan/.IABootFiles/boot.efi
finderinfo[2]: 0 => Open-folder linked list empty
finderinfo[3]: 0 => No alternate OS blessed file/folder
finderinfo[4]: 0 => Unused field unset
finderinfo[5]: 712 => OS X blessed folder is /Volumes/Install OS X El Capitan/.IABootFiles
64-bit VSDB volume id: 0x75D1422C78135BFA
MacBook-Pro-de-Hervieu:~ hervieuhelene$ ls /Volumes/Install\ OS\ X\ El\ Capitan/.IABootFiles
PlatformSupport.plist boot.efi com.apple.Boot.plist prelinkedkernel
MacBook-Pro-de-Hervieu:~ hervieuhelene$