Download MacOS Sierra via torrent or dirrent links, open the .dmg
Right-click the .app - "Show Package Contents"
Open (mount) InstallESD.dmg, located along the path of "Install ...app / Contents / SharedSupport /"
From the contents of the OS X Install ESD open (mount) BaseSystem.dmg (default BaseSystem.dmg Basesystem.chunklist and hidden. Use the utility "ShowAllFiles").
Run Disk Utility and expand BaseSystem.dmg on the flash drive formatted GUID (the "Options") and Mac OS coffee (HFS +)
Copy the folder OS X Install ESD / Packages folder on the flash drive in the / System / Installation / replacing the file alias Packages.
Copy to the root of the stick and BaseSystem.dmg Basesystem.chunklist of Install ESD
If you do not - get an error Undefined error: 0 at the very beginning of the installation!
Backup
Reboot while holding down Alt. Choosing our stick. If necessary, after Disk Utility to erase partitions. We put the system.