Jump to content

10.9.2 on Optiplex 755

Optiplex 755 Mavericks

  • Please log in to reply
43 replies to this topic

#41
Rowas

Rowas

    InsanelyMac Protégé

  • Members
  • Pip
  • 36 posts

Hey guys. I'm attempting to install OSX onto my Dell Optiplex 745 as well. The only difference in specs is that it is equipped with a Geforce GT 240 as the video card.

 

The issue I'm having does not seem to be apparent anywhere else. Basically, when I attempt to boot the installer USB, I can get into the bootloader just fine, but it takes a long time (about a minute or so) just to get into the bootloader.

 

Once inside the bootloader, I try to load the installer, and the screen goes black. It doesn't start loading the system at all. It's not a graphics issue, because even without graphics support, you can see the verbose boot before the screen goes black. In this instance, I can tell that it can't get past the bootloader because Ctrl+Alt+Delete causes the system to reboot, which does not happen when it is loading OSX.

 

For reference, I did go into BIOS and set Hard drive to Legacy, turned on usb booting.

 

To try to get around this problem, I attempted to install OSX to the drive externally using my main system and the installer USB. After doing that, I installed Clover to the hard drive. When I attempted to boot directly off the hard drive, it was the exact same situation. Clover took a really long time to load, and when I attempt to boot into OSX, the screen goes black and does not load the system at all.

 

I am doing this to install Yosemite, so I'll be cross-posting on the Yosemite forum, and Latitude forums but this is also valid for previous versions as well because I've noted this problem in the past when I tried loading the Mountain Lion installer using Chameleon.



#42
kvonlinee

kvonlinee

    InsanelyMac Legend

  • Members
  • PipPipPipPipPipPipPip
  • 599 posts
This machine dell optiplex 755 could run yosemite also, use the same method for dell xps410. Run with chamemeleon boot loader.
The guide is here. http://www.insanelym...-show-4-drives/
You need fakesmc, nullcpu, appleintelpiixata, patch applerRTC, appleLPC for show 4 drives.
Good luck to all.

#43
blackest

blackest

    InsanelyMac Protégé

  • Members
  • Pip
  • 2 posts

hi thanks to the 755 kexts in this thread i got 10.9.0 running on an internal hard drive.

I used niresh to install originally to one machine did the boot fix and cloned the drive.

without the 755 kexts i could only boot with hdds in  legacy mode.

 

once they were installed the hdd controller was recognised this was yesterday, having left the machine running i found upgrades waiting to be installed dreading it i let them install. Can't boot , oh f...

ok i popped out the drive and put it in a usb cradle and booted in safe mode.

about this mac showed i was now running 10.9.5 mmm not sure about this

used kext wizard to install the 755 kexts see if it would work or back to square 1 and a full reinstall

replaced the drive back on to sata and again tried booting with -x

it worked so tried booting normally it succeeded :)

 

everything seems to be fine.

 

 NVIDIA GeForce GT 610 1024 MB

2.66 GHz Quad-Core Intel Xeon / quadcore 2 9600

8gb ram 

 

So 755 can run 10.9.5 not sure if i'd want to go further thou.



#44
kvonlinee

kvonlinee

    InsanelyMac Legend

  • Members
  • PipPipPipPipPipPipPip
  • 599 posts
It could run 10.10, with mine cpu is Core 2 Duo, it seem O.K. Excpet the HDMI audio by Nvidia GT610 is I can not make it to work. I am not sure about VoodooHDA.






0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users

© 2015 InsanelyMac  |   News  |   Forum  |   Downloads  |   OSx86 Wiki  |   Mac Netbook  |   PHP hosting by CatN  |   Designed by Ed Gain  |   Logo by irfan  |   Privacy Policy