![]() ![]() Hdiutil convert /tmp/ -format UDTO -o /tmp/HighSierra. Hdiutil attach /tmp/ -noverify -mountpoint /Volumes/install_buildĬp /tmp/BaseSystem.dmg /Volumes/OS\ X\ Base\ System Hdiutil create -o /tmp/HighSierra.cdr -size 8965m -layout SPUD -fs HFS J # Restore the High Sierra Beta Installer's BaseSystem.dmg into file system and place custom BaseSystem.dmg into the root Hdiutil detach /Volumes/OS\ X\ Base\ System/ Hdiutil attach /tmp/ -noverify -mountpoint /Volumes/install_buildĪsr restore -source ~/SharedSupport/BaseSystem.dmg -target /Volumes/install_build -noprompt -noverify -eraseĬp -R /Volumes/highsierra/Packages /Volumes/OS\ X\ Base\ System/System/Installation ![]() ![]() Hdiutil create -o /tmp/HighSierraBase.cdr -size 7316m -layout SPUD -fs HFS J Hdiutil attach ~/SharedSupport/InstallESD.dmg -noverify -mountpoint /Volumes/highsierra # Generate a BaseSystem.dmg with High Sierra Beta Installer Packages # Create bootable ISO from HighSierra 10.13db3 (17A306f) Run the following script to create ISO file When I went through the upgrade from 8.5.7 - 8.5.8 when running on High Sierra as the host it briefly prompted me to approve the kernel model. I had upload the whole SharedSupport folder. I believe it is due to the new security system in 'high sierra' that auto blocks kernel drivers. 2.2 Bootable ISO imageĪfter installation completed, upload InstallESD.img
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