MP 1,1-5,1 Creating Snow Leopard Server install USB for Mac Pro 5,1

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Recently acquired a Snow Leopard Server retail DVD version 10.6.3. Any version of Snow Leopard older than 10.6.4 would not boot on a Mac Pro 5,1. As a matter of fact to date I could not find a version of Snow Leopard to boot (and install) on the cMP5,1 other than the one coming with the original restore DVD. I have uploaded an image of the restore DVD to the Web Archive:

Snow leopard on Mac Pro 5,1?

Uploaded Mac OS Version 10.6.4 Installation DVD image to archive.org. Disc version 1.0 27691-6698-A

forums.macrumors.com

To create a USB installer:
1. Create a RW DMG from the restore DVD image on the Desktop with Disk Utility.
2. Resize the image to 12G:

hdiutil resize -size 12g  ~/Desktop/Mac\ OS\ X\ Install\ DVD.dmg

3. Copy these files from the Snow Leopard Server 10.6.3 DVD:

/Volumes/Mac OS X Server Install Disc/System/Installation/Packages/MacOSXServerInstall.mpkg
/Volumes/Mac OS X Server Install Disc/System/Installation/Packages/MacOSXServerInstall.pkg
/Volumes/Mac OS X Server Install Disc/System/Installation/Packages/OSInstall.mpkg
/Volumes/Mac OS X Server Install Disc/System/Installation/Packages/OSInstall.pkg
/Volumes/Mac OS X Server Install Disc/System/Installation/Packages/QuickTimeStreamingServer.pkg
/Volumes/Mac OS X Server Install Disc/System/Installation/Packages/ServerAdminTools.pkg
/Volumes/Mac OS X Server Install Disc/System/Installation/Packages/ServerDVDMask.bom
/Volumes/Mac OS X Server Install Disc/System/Installation/Packages/ServerEssentials.pkg
/Volumes/Mac OS X Server Install Disc/System/Installation/Packages/ServerSetup.pkg
/Volumes/Mac OS X Server Install Disc/Other Installs.localized/ServerAdministrationSoftware.mpkg
/Volumes/Mac OS X Server Install Disc/Other Installs.localized/X11User.pkg

4. Paste the files to their respective destinations on the RW disk image previously created (replace the files with the same names if any):

/Volumes/Mac OS X Install DVD/System/Installation/Packages/MacOSXServerInstall.mpkg
/Volumes/Mac OS X Install DVD/System/Installation/Packages/MacOSXServerInstall.pkg
/Volumes/Mac OS X Install DVD/System/Installation/Packages/OSInstall.mpkg
/Volumes/Mac OS X Install DVD/System/Installation/Packages/OSInstall.pkg
/Volumes/Mac OS X Install DVD/System/Installation/Packages/QuickTimeStreamingServer.pkg
/Volumes/Mac OS X Install DVD/System/Installation/Packages/ServerAdminTools.pkg
/Volumes/Mac OS X Install DVD/System/Installation/Packages/ServerDVDMask.bom
/Volumes/Mac OS X Install DVD/System/Installation/Packages/ServerEssentials.pkg
/Volumes/Mac OS X Install DVD/System/Installation/Packages/ServerSetup.pkg
/Volumes/Mac OS X Install DVD/Optional Installs.localized/ServerAdministrationSoftware.mpkg
/Volumes/Mac OS X Install DVD/Optional Installs.localized/X11User.pkg

sha1 sums:

/Volumes/Mac OS X Server Install Disc/System/Installation/Packages/MacOSXServerInstall.mpkg sha1 fd685a7b8ee2128fc3570567741e1e36e18b4d3b
/Volumes/Mac OS X Server Install Disc/System/Installation/Packages/MacOSXServerInstall.pkg sha1 b93cd7a02dc8b31be1590eb8d1c0e58a5b303a88
/Volumes/Mac OS X Server Install Disc/System/Installation/Packages/OSInstall.mpkg sha1 dc7d6a7cd39ba20a02e4e3ac885394ce81694be3
/Volumes/Mac OS X Server Install Disc/System/Installation/Packages/OSInstall.pkg sha1 ecfc5e65b551a39765aa8dffdeb21f81b94e25c4
/Volumes/Mac OS X Server Install Disc/System/Installation/Packages/QuickTimeStreamingServer.pkg sha1 327f7484800f615d91b5354ade61d3b2bf000d2f
/Volumes/Mac OS X Server Install Disc/System/Installation/Packages/ServerAdminTools.pkg sha1 39690a251918c6118b000539c6fb61838f5e23b7
/Volumes/Mac OS X Server Install Disc/System/Installation/Packages/ServerDVDMask.bom sha1 b5c57dff6dee3cb3d1a74536661bf93dc3c789e9
/Volumes/Mac OS X Server Install Disc/System/Installation/Packages/ServerEssentials.pkg sha1 4d4aecad399665bad72e5dd35a6819b960f6c4d8
/Volumes/Mac OS X Server Install Disc/System/Installation/Packages/ServerSetup.pkg sha1 b87125d90f083ba6afe8827b89eecb0bc683fa82
/Volumes/Mac OS X Server Install Disc/Other Installs.localized/ServerAdministrationSoftware.mpkg sha1 00e50ead1c8d3e94ac8de9323711d6cb40eb9fca
/Volumes/Mac OS X Server Install Disc/Other Installs.localized/X11User.pkg sha1 43f0e4e625a2c0ec7e78ad03a9a3355c4c422204

5. Restore the RW DMG to a 16GB USB with Disk Utility.
6. Boot from the USB and install the Snow Leopard Server on cMP5,1

The only caveat I encountered is with the X11. For some reason it complains that it can't find all X11 files, although I can't find a missing file.

 

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Snow Leopard Server Install Disk 10.6.3 retail version