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PippoX0

DVD very old media

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Hi,

 just for fun , i created a bootable OSX Sierra installation DVD.

 Wow, i didn't remember how much time it takes to load before you can get install screen ... ( 11 minutes ...) ( even on Intel i5 quad-core and 8Gb of ram)

I stopped i don't want to know how much time it takes to fully install on HD......

 

However it remembers me when DVD was the only way to install OSX ...

 

Cheers :)

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Yeah, sometimes i like to try old stuff on new OS.

 

BTW to creare a Bootable DVD is an easy task :

 

1) Create a Legacy bootable USB as you prefer ( Clover o Enoch bootloader)

2) Create a dummy DMG with 8Gb of space ( i.e. Sierra)

3) Restore USB on DMG with  Disk utility or Carbon Copy Cloner

4)  Re- install legacy Booloader on DMG  *** This is optional, because all should be just fine ... ***

5) Create an hybrid ISO HFs+ Jolilet with Cdrom-boot option (here is the magic .... )

sudo hdiutil makehybrid -o "Desktop/DVD.iso" "/Volumes/Sierra/" -iso -hfs -joliet -eltorito-boot "/Volumes/Sierra/usr/standalone/i386/cdboot" -no-emul-boot -hfs-volume-name "OSX Sierra Install DVD" -joliet-volume-name "OSX Sierra Install DVD"

6) Burn ISO with Disk Utility on a  Double-layer DVD.

 

That's All

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Yeah, sometimes i like to try old stuff on new OS.

 

BTW to creare a Bootable DVD is an easy task :

 

1) Create a Legacy bootable USB as you prefer ( Clover o Enoch bootloader)

2) Create a dummy DMG with 8Gb of space ( i.e. Sierra)

3) Restore USB on DMG with  Disk utility or Carbon Copy Cloner

4)  Re- install legacy Booloader on DMG  *** This is optional, because all should be just fine ... ***

5) Create an hybrid ISO HFs+ Jolilet with Cdrom-boot option (here is the magic .... )

sudo hdiutil makehybrid -o "Desktop/DVD.iso" "/Volumes/Sierra/" -iso -hfs -joliet -eltorito-boot "/Volumes/Sierra/usr/standalone/i386/cdboot" -no-emul-boot -hfs-volume-name "OSX Sierra Install DVD" -joliet-volume-name "OSX Sierra Install DVD"

6) Burn ISO with Disk Utility on a  Double-layer DVD.

 

That's All

That is not all.

Legacy boot sector is machine code.

https://developer.apple.com/legacy/library/documentation/Darwin/Reference/ManPages/man1/hdiutil.1.html

makehybrid is create file system,not boot sector machine code,there is no hybrid iso,because iso does not equal file system.

your method maybe enough,but not retail DVD

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Hi,

Boot sector code is inside /Volumes/Sierra/usr/standalone/i386/cdboot file.

 -eltorito-boot <cdboot> and -no-emul-boot option are needed to make iso bootable.

 

Enoch bootloader install cdrom bootsector code in //usr/standalone/i386/ folder, during setup.

I don't Know it this method works with Clover , on Enoch/Chameleon works fine ....

 

You're right -> it is not a retail DVD , it's for Hackintosh PC only ... ( Legacy ones)

 

Retail DVDs are for real Mac ...

 

See Ya

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Hi,

Boot sector code is inside /Volumes/Sierra/usr/standalone/i386/cdboot file.

 -eltorito-boot <cdboot> and -no-emul-boot option are needed to make iso bootable.

 

Enoch bootloader install cdrom bootsector code in //usr/standalone/i386/ folder, during setup.

I don't Know it this method works with Clover , on Enoch/Chameleon works fine ....

 

You're right -> it is not a retail DVD , it's for Hackintosh PC only ... ( Legacy ones)

 

Retail DVDs are for real Mac ...

 

See Ya

thank you for your information,I do not know eltorito can work with makehybrid,eltorito=dd,makehybrid=cp,different.how about all with dd?

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