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pdjudd

macrumors 601
Jun 19, 2007
4,037
65
Plymouth, MN
I bought it because I want to start making Apps for the Mac, and ML is what convinced me to buy it.

Unless you can devote a dedicated machine for testing, don’t risk it unless you know what you are doing. If you want to learn developing, best to start on a stable platform with the latest version of Xcode - better than trying to learn about development and trying to debug a new OS. It’s going to take time anyway and you can upgrade later when things smooth out and you can check out the new API’s after they have time to bake.

DP’s are about debugging existing software - not really for learning since anything can change.
 

Lukeit

macrumors regular
Feb 28, 2011
206
66
Shanghai, China
ML is getting worse as days go on. Brand new bugs each day.

Recommending it to anyone as their only OS is a very, very poor suggestion.

Despite what some people are saying, there are significant bugs...some people just haven't found them yet.

Its also working different of different machines.

ie: 5 year old iMac running fine with few bugs.

2011 MacBookPro quad core 8 GB of RAM 128 GB SSD, many bugs, slow graphics, stuttering Full Screen app transitions, some apps crashing, WiFi turning itself OFF during sleep (never seen this once before).

Today, Messages does not work at all.

There ARE issues. Don't even consider using it as primary OS

TOTALLY TOTALLY AGREE 100%... quite smooth on my iMac, very poor and buggy on my newer MBP where mail, iCloud and messages crash without even opening! I know it's a beta, but how can I test it without being able to open such important apps?
 

TwoBytes

macrumors 68040
Jun 2, 2008
3,215
2,184
I completely agree however I have two iMac's to fall back on if anything goes wrong so I made it the Primary OS on my MBP and I've been using it fine every day since the 16th..well I didn't start using it until the 17th as I went to bed while it installed lol.

I did a clean install by making a bootable 10.8 USB stick.

Best bet though is to open Disk Utility and make a little partition of maybe 20GB just to install mountain lion onto and play around with it, see how buggy it is for a few days and if you think you can tolerate it then do a full wipe and use it as your main OS however I am not encouraging you to do so, Safari is very glitchy and no longer likes to tap click for me while using flash applications like youtube, I need to physically click for it to work but it works fine on Chrome and Firefox.

sensible post.

People are reporting all sorts of things but from what i read, a lot of people comment on how stable it is. Yes, there will be bugs and some unknown things may happen so if you do it, keep a regular time machine running. If stability and no downtime is no 1 importance, don't do it. The post above suggesting to see how it works for you personally really sums it up.
 

brunopinho

macrumors newbie
Feb 22, 2012
10
0
ML is getting worse as days go on. Brand new bugs each day.

Recommending it to anyone as their only OS is a very, very poor suggestion.

Despite what some people are saying, there are significant bugs...some people just haven't found them yet.

Its also working different of different machines.

ie: 5 year old iMac running fine with few bugs.

2011 MacBookPro quad core 8 GB of RAM 128 GB SSD, many bugs, slow graphics, stuttering Full Screen app transitions, some apps crashing, WiFi turning itself OFF during sleep (never seen this once before).

Today, Messages does not work at all.

There ARE issues. Don't even consider using it as primary OS

I have the same Imac 7.1 .. OS 10.8 pretty stable here except choppy/ lag scrolling in safari and chrome. How about yours?
 

pmz

macrumors 68000
Nov 18, 2009
1,949
0
NJ
I have the same Imac 7.1 .. OS 10.8 pretty stable here except choppy/ lag scrolling in safari and chrome. How about yours?

Same.

Its just funny to me how much slower/choppier/crashier it's on my much faster and 5 years newer MBP.

It's ok, I reinstalled Lion on the MBP and just downloaded Safari and Messages beta. Those are the best parts for now anyway.

I'm sure the DP2 will land within a month-month and a half. A summer release means more frequent beta releases.
 

WeegieMac

Guest
Jan 29, 2008
3,274
1
Glasgow, UK
Personally, I'm using it as my primary OS on my iMac, which is a mid 2009 model and compared to Lion, this is a Godsend. My main issue was always with Lion's animations, they were awful and took away from the fluid operation of OS X, which is one of it's famed attributes in my opinion.

From opening/closing Launchpad, opening/closing folders within Launchpad, going to/from Full Screen mode in apps, and the animation where an app is downloaded from the App Store and sent to Launchpad, every version of Lion has run like a stuttering, inconsistent mess.

Mountain Lion, for DP1, is remarkably better on my iMac than even the latest version of Lion. Fingers crossed the final release is just as good, because Mountain Lion truly has, thus far, given me Snow Leopard quality performance but with the features of Lion.
 

organik

macrumors member
Jun 30, 2007
47
0
Reverting FROM ML to Lion

Anybody done this successfully? I jumped the gun and went full bore for ML, but it's a bit too buggy for daily use for me (I didn't do it on a work computer or anything - not a huge problem).

If I clone the drive and do a clean install of Lion, will I be able to migration assistant from my ML drive? I'm guessing not...

Or is there a way to install Lion on top of ML, keeping apps and user accounts?

Thanks -
 

monkeybagel

macrumors 65816
Jul 24, 2011
1,142
61
United States
Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_0_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9A405 Safari/7534.48.3)

Would not recommend it. Once you play with the new features for an hour or two you will want to revert to Lion to get application compatibility, unless you will be developing on it.
 

Meriana

macrumors member
Aug 31, 2009
83
0
It has a few bugs, and if you are concerned for your data, are not a pro user/developer, don't have a backup, don't use it. However i'm primarily developping on my macbook air, which is as well my only portable machine. I decided to go ahead and upgrade it to ML and see if it's stable enough for developping, emailing and surfing the internet. Which it is, so i kept it and didn't go back to Lion, it's just easier to have one installation than two.
 

negativzero

macrumors 6502a
Jul 19, 2011
564
55
I've had 4 kernel panics in the past 3 days in addition to crashes from Safari, Mail, Contacts, Disk Utility and Bootcamp Assistant in addition to non-working apps like VMware, Onyx, etc...

I'll be re-installing Lion once I recall how to pop back my optibay.

Even as a developer, DP1 isn't even stable enough to work on. Frequent crashes and incompatibilities means you'll never know it was a result of your code or Apple's.
 

irnchriz

macrumors 65816
May 2, 2005
1,034
2
Scotland
Running ML in Parallels 7, wouldn't use it as a Main OS until GM tbh. I run Lion on my Macs with no issues and wouldn't want to compromise them.

My iMac is my Main system and it runs a ton of stuff for work so it is much simpler/safer to experiment with a virtualised ML.
 

happyslayer

macrumors 65816
Feb 3, 2008
1,031
579
Glendale, AZ
I'm using ML 10.8 as my main OS on my 2011 MBA and I have had very little issues with it. For me to properly evaluate and test a new OS, I need to be running it on my main machine as the primary OS. For me, this is the only way to figure out what works and doesn't. I do have a good backup of 10.7 install though :)

Admittedly, I don't run very many hardcore apps on it, though.

Mac mail, Office 2011 (Word, Excel, PPT & Outlook) iWork (occasionally), Safari, Scrivener2 (no issues!) and Dropbox are my primary apps that I use most.

The only real issue I've had is that Dropbox does not always start when I reboot. I occasionally (not always) have to manually double click the app to get it to show up in the menu bar. However, this also happens with iStat menus (latest update) so it could be related to that. I've just been too lazy to test it.

So for me it's been fine. However, as I said earlier, I also have a solid/tested Time Machine backup of my 10.7 install just in case.

If your Mac is crucial to your daily life and you can't imagine waiting for a Time Machine restore to finish... Don't use it as primary.

My two cents...
 
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