I am trying pressing number 2 and 3 during boot and I am unable to get into 32 bit mode? macbook 2010 2ghz
You can still boot into a 32-bit kernel, but you need to modify boot.plist as holding 3 and 2 no longer seems to work. Just add arch=i386 in to boot.plist and reboot. I assume this will go in future builds but it works for now. One thing to note, it seems you can't access file shares in 32-bit mode for some reason.
Skaro - could you provide exact instructions on how to add arch=i386? Thanks in advance. I realize this thread is old, but I can't find this information anywhere else.
Hi You need to edit /Library/Preferences/SystemConfiguration/com.apple.Boot.plist. You need to amend the Kernel Flags entry to look like this:- <key>Kernel Flags</key> <string>arch=i386</string> If it doesn't exist just add it and then reboot. I have no idea whether this works in the release version of Mountain Lion but good luck