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OS X 10.8 Mountain Lion Developer Preview 2 Seeded to Developers


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#1
Derty

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http://www.macrumors...-to-developers/


Friday March 16, 2012 1:15 pm PDT by Eric Slivka

Apple today seeded the second preview version of OS X Mountain Lion to developers, building upon the initial developer version released one month ago.

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As noted by The Next Web, Apple has also posted an extensive list of known issues alerting developers to various bugs and missing features that have yet to be addressed.

OS X Mountain Lion is Apple's next major operating system version and is scheduled for release in "late summer". The release will offer greater integration with iCloud, as well as a number of new feature including some drawn from iOS.


  • 32-bit kernel extensions are not supported in Mountain Lion --------> OPS:::!!!!
  • AirPlay mirroring is not supported with the with the current version of the Apple TV software

Game Center
  • The Game Center Server environment is set to Sandbox. Existing Sandbox accounts may be used, or you may create a new account
    • In the Sandbox environment:
      • Game & Friend Recommendations are not supported
      • Friends can view games in common but not friends’ other games
      • Photos are not supported
      • No email vetting and friend requests to un-vetted email addresses are allowed
      • No support for out of network friend requests is provided
      • Game matchmaking versioning restrictions are more relaxed
    • Some of the Game Detail information does not display (Game Provider, Pricing, etc.) in this Developer Preview
    • Search is not functional
    • No badges shown for Friend Requests
    • Peer-to-Peer GameKit API is not supported
    • Leaderboards, Achievements, or Players may be displayed incorrectly. To resolve this issue quit Game Center and re-launch
  • The new Notes application does not currently import the following types of notes:
    • Microsoft Exchange
    • Notes existing in sub-folders of IMAP accounts
    • Local notes in an “On My Mac” account

Notes in these accounts will be available in Mail
  • Notes shared via Messages may not include note content
  • Screen Sharing may not work between OS X Mountain Lion and Snow Leopard or earlier OS X releases in this Developer Preview
  • AppleScript is not fully functional in this Developer Preview
    • AppleScripts used to launch Applications which are not already open will time out
    • AppleScripts may not be able to send AppleEvents to Mail
  • DVD Player may not launch after inserting a DVD on some systems
  • DVD Movie Playback does not work on certain NVIDIA GPUs
  • Horizontal metrics for Apple SD Gothic Neo are narrower than in AppleGothic. Applications localized to Korean may experience text layout underflow in multi-line text strings
  • Video content with displays that use HDCP may experience graphics corruption on certain NVIDIA GPUs
  • Enabling display rotation causes kernel panic on certain NVIDIA GPUs
  • Signing into Setup Assistant with your AppleID does not sign you into iCloud
  • NSDocument-based applications which use auto-save & iCloud entitlements will be opted into the new Document Library automatically. The option to disable this is not currently available
  • Kernel, kexts, and zones are now based at unpredictable addresses at each boot. The addresses in the kernel symbol table are unslid, and will not accurately reflect a running system. Provided that Xcode 4.4 gdb is used, KASLR is transparent to kernel debugging
    • To temporarily disable KASLR, set “slide=0″ in the boot-args
  • Panics may occur when a Port Multiplier or PCI eSATA drive is attached
  • While booted into the Recovery Partition, you may be unable to connect to WiFi networks
  • Safari does not function in the Recovery Partition
  • Restoring from network backups in the Recovery Partition may fail


#2
mediamac

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I got panic when viewing DVD content.Hope in this release they fix it.
Thanks

#3
artur-pt

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hi

no problems in the install, and for now nothing new.

same problem for me in kernelcache like DP1

if use UseKernelCache=Yes in chameleon the system hangs in the usb, kernelcache=No, no problems in DP1 or DP2

good hack

#4
lord_webi

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KextUtility fixed that for me

#5
Kynyo

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Everything oke for me, just temperature raised by 3 degree and system is more hot when is full used!

#6
oldnapalm

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kernelcache is not being updated and Chameleon doesn't load it because it's older than Extensions folder

/System/Library/Extensions is more recent than KernelCache (/System/Library/Caches/com.apple.kext.caches/Startup/kernelcache), ignoring KernelCache


Looks like the problem is in AppleThunderboltNHI.kext which has unresolved symbols

kxld[com.apple.driver.AppleThunderboltNHI]: The following symbols are unresolved for this kext:
kxld[com.apple.driver.AppleThunderboltNHI]: IOPCIDevice::protectDevice(unsigned int, unsigned int)
kxld[com.apple.driver.AppleThunderboltNHI]: IOPCIDevice::setConfigHandler(int (*)(void*, unsigned int, IOPCIDevice*, unsigned int), void*, int (**)(void*, unsigned int, IOPCIDevice*, unsigned int), void**)
kxld[com.apple.driver.AppleThunderboltNHI]: IOPCI2PCIBridge::adjustPowerState(unsigned long)
Link failed (error code 5).
Prelink failed for com.apple.driver.AppleThunderboltNHI; aborting prelink.
Failed to generate prelinked kernel.


Removing the kext, kernelcache is updated and loaded normally
sudo mv /System/Library/Extensions/AppleThunderboltNHI.kext /System/Library/Extensions/AppleThunderboltNHI.kext.orig
sudo kextcache -prelinked-kernel

Loading Darwin 10.8
Loading kernel cache /System/Library/Caches/com.apple.kext.caches/Startup/kernelcache
Read HFS+ file: [hd(0,3)/System/Library/Caches/com.apple.kext.caches/Startup/kernelcache] 4096 bytes.
Read HFS+ file: [hd(0,3)/System/Library/Caches/com.apple.kext.caches/Startup/kernelcache] 28368802 bytes.


Edit: actually the problem only happens if I'm using this IOPCIFamily (to see verbose boot after "PCI configuration begin"), using original IOPCIFamily there's no error creating kernelcache.

#7
tdtran1025

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The OBVIOUS welcome change is IOPCIFamily.kext, which is back to supporting an array of motherboards. I could not boot straight to a new install on 1 of my machines which has atypical ICH10R chipset. Now it does it with no boot parameter at all. What a relief. I even managed to install to RAID0 volume that has always been tricky since Lion.
I noticed something about a Library of graphics cards. On 1 machine that has NVidia 9600GSO, fan power is on Max when Desktop appears. DVD players also is not loading. But beyond that, everything is smooth. Again software RAID support is a major plus for me.
In fact, I am making it my day-t-day OS since it seems stable enough.
I will try ATI cards right now.

#8
mitch_de

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I get (frist ever for me) an reboot booting from the USB Install Stick - without any KP / others things listed on verbose screen. C2D / NV 9600 GT.
I will look furhter - DP1 install (same process worked).
EDIT: Was the Chameleon 1890 ML bootloader. Even listed as ML ready (used the Chameleon thread here) it doesnt work rebbots- I crosschecked that if i try to boot my already on HD ML DP1 which also reboots. Using an older 1831 ML chameleon didnt reboot.
BUT: As i reached first menue to select language - doesnt matter which lang i select it showdowns?!

#9
flip360

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I get (frist ever for me) an reboot booting from the USB Install Stick - without any KP / others things listed on verbose screen. C2D / NV 9600 GT.
I will look furhter - DP1 install (same process worked).
EDIT: Was the Chameleon 1890 ML bootloader. Even listed as ML ready (used the Chameleon thread here) it doesnt work rebbots- I crosschecked that if i try to boot my already on HD ML DP1 which also reboots. Using an older 1831 ML chameleon didnt reboot.
BUT: As i reached first menue to select language - doesnt matter which lang i select it showdowns?!


Same here. DP1 worked perfectly now as soon as i click install, it gives me error and options to restart or shutdown. :|

#10
mitch_de

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THANKS for reporting same problem: shutdown at first OS X setup menue of language settings.
Perhaps better to discuss / search solutions in the ML Install Thread? I will go there .
http://www.insanelym...howtopic=277226

#11
Kynyo

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@ the installation process i've not encounted any problem. As bootloader I used just Chimera 1.8 without any error mentioned here.
Everything just works flawless here! (Monitor Sleep issues also resolved in DP2).





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