Mac OS X Lion Roundup: Recovery Partitions, TRIM Support, Core 2 Duo Minimum, Focus on Security - MacRumors
Skip to Content

Mac OS X Lion Roundup: Recovery Partitions, TRIM Support, Core 2 Duo Minimum, Focus on Security

With the first developer preview of Mac OS X Lion having been out for over 24 hours now, some additional points of interest are surfacing from those who have had a chance to look through the build. Among the interesting observations:

- Apple has added support for a separate recovery partition, hiding away utilities needed for repair and troubleshooting right on the user's hard drive. The new system will allow users to boot to the recovery partition without the need for an operating system disc. The move, along with the shift to Mac App Store distribution for the developer preview, signal a reduced reliance on DVDs that may become important if other notebooks follow the MacBook Air's lead and see their internal optical drives removed entirely.

153551 lion system profiler trim

- As noted by MacGeneration [Google translation], Apple has added TRIM support in this initial developer build of Mac OS X Lion. TRIM support provides for optimization of solid-state drives by cleaning up unused blocks of data and preparing them for rewriting, preventing slowdowns that would otherwise occur over time as garbage data accumulates.

- Mac OS X Lion requires a minimum of an Intel Core 2 Duo, leaving out compatibility for Apple's earliest Intel-based machines offering Core Solo or Core Duo processors.

- CNET notes that Apple has apparently invited a number of security researchers to test out Mac OS X Lion, a move that seems to signal a more open relationship with those who are trying to find security vulnerabilities in Apple's software.

Popular Stories

iOS 27 Next to iPhone

Here's When iOS 27 Rolls Out Today in Every Time Zone [Update: It's Out]

Sunday September 13, 2026 3:00 am PDT by
Update 10:04 a.m.: iOS 27 is rolling out now, though it may take a bit for all users to see it, so keep checking! Apple is about to release iOS 27, which will finally deliver more advanced Siri AI capabilities as well as a variety of other refinements, improvements, and new features to iPhones. It's Apple's biggest software update of the year, and Apple announced at Wednesday's iPhone event...
iOS 27 Icon iPhone

iOS 27 Available Now With These 8 New Features

Monday September 14, 2026 9:00 am PDT by
Update — 10 a.m. Pacific Time: Apple has released iOS 27. During its iPhone 18 Pro and iPhone Duo event last week, Apple announced that iOS 27 will be released widely on Monday, September 14. iOS 27 should be available around 10 a.m. Pacific Time / 1 p.m. Eastern Time today via the Settings app, under General → Software Update. Below, we have highlighted eight new features and...
Apple iCloud Plus expansion hero

iCloud+ Now Includes Apple TV, Apple Arcade, and Curated Apple Music Stations in Over 100 Countries

Tuesday September 15, 2026 1:43 am PDT by
Apple today announced a new subscription initiative that turns paid iCloud+ subscriptions into a broader services bundle in more than 100 countries. In select countries, Apple says every paid iCloud+ plan, including the cheapest 50GB tier, now includes Apple TV and Apple Arcade "at no additional cost," while family sharing extends the storage, TV and Arcade access to up to five people....

Top Rated Comments

203 months ago
Seriously? People are whining that their now 5 year old computers won't be supported? :rolleyes: That's how technology progresses. 5 years encompasses a lot of technology.

I install windows 7 on my seven years PC and it screams! (Not just the noisy fan)
Score: 1 Votes (Like | Disagree)
me_94501 Avatar
203 months ago
Seriously? People are whining that their now 5 year old computers won't be supported? :rolleyes: That's how technology progresses. 5 years encompasses a lot of technology.
A new computer is also a significant investment for some, considering the continually sucky economic climate. Given that, I'd say you're a little too quick to dismiss people's concerns.
Score: 1 Votes (Like | Disagree)
lostngone Avatar
203 months ago
Core 2 Duo minimum?

Does that mean it will run crappy on a 2010 MBP or will it run smoothly?
2010? Really? That is really old! What possible reason would you have to still be using that? Didn't that come installed with Jaguar or was it Panther? Does it even run Leopard? I think it is time to upgrade that antique!
Score: 1 Votes (Like | Disagree)
203 months ago
Ghost Killer

Well, there goes my still-perfectly-functional-and-used MacBook 2 GHz Core Duo. :(

Because when your neighbor installs Lion, his version will leap across to your house and kill your old MacBook?
Score: 1 Votes (Like | Disagree)