CloudBees Build Acceleration supports these specific Cygwin versions.
Install the same version of Cygwin on all agent hosts and eMake machines.
Mixing different Cygwin versions (for example, running v1.5 on an eMake machine and v1.7 on agents) is not supported. (In particular, Cygwin versions 1.5 and 1.7 default to different incompatible representations for symbolic links.)
On all agent hosts, modify the permissions for the Cygwin installation directory and any other directories under which you want the agent software to dynamically create Cygwin mount points.
For agent installations that use standard ECloudInternalUser* accounts, grant the
Administratorsgroup permission to
create folders / append data.
For custom agent users, grant permission for subdirectory creation to those agent users.