Mac updating boot caches


25-Dec-2017 13:17

Mac OS X uses a boot-time optimization (effectively a smart read-ahead) that monitors the pattern of incoming read requests to a block device (the boot disk), and sorts the pattern into a "playlist", which is used to cluster reads into a private cache.This "boot cache" is then used for satisfying incoming read requests, if possible.

To be clear; this is not a recommended task, nor is clearing caches and temporary files on a Mac something that you should need to perform.

I installed Kalyway 10.5.2 on my computer today and when I install Nv Inject Go for my 8600GT card and try rebooting my computer, Leopard displays a message that states: "Updating Boot Caches: Caches are necessary..." However, the system hasn't stopped "updating the chaches" for well over an hour which leads me to believe that there is something wrong. Specs: Mobo: GA-P35-DS3l CPU: E8400 RAM: 2 GB HDD: 500 GB Seagate SATA DVD-ROM: Samsung IDE I installed Kalyway 10.5.2 on my computer today and when I install Nv Inject Go for my 8600GT card and try rebooting my computer, Leopard displays a message that states: "Updating Boot Caches: Caches are necessary..." However, the system hasn't stopped "updating the chaches" for well over an hour which leads me to believe that there is something wrong. Specs: Mobo: GA-P35-DS3l CPU: E8400RAM: 2 GBHDD: 500 GB Seagate SATADVD-ROM: Samsung IDEThat happens after you delete Extensions.mkext.

After deleting it, it gets rebuilt in about 15 seconds, but sometimes it does freeze.

Let’s learn a bit more and see how to boot into safe mode, what safe mode does, and how to exit and return the Mac to it’s normal boot state.

And yes, this works in all versions of OS X, from Yosemite to Mavericks, Mountain Lion, Snow Leopard, you name it, you can boot into safe mode with it.On rare occurrences people may find that after updating their Macs the system will not boot.