Guide: Update OS X Mavericks to OS X Yosemite Using UniBeast and MultiBeast

[zmugu]

Hi folks,

Just ran the update as per instructions and I can boot the HD by booting from USB first, then using -v -x to boot from hard drive. I can't boot directly from the hard drive using -v -x, it still stops loading. This is quite confusing as they should be loading from the same source?

Booting without these flags results in the grey load screen bar not moving. I have run multibeast after booting from usb to hd with -v and -x, it still wont boot from the hard drive at all.

Attached is what I get in verbose mode booting directly from the hard drive. Any ideas?

for me work with this -x, PCIRootUID=1

 

[Stork]

Hi guys, will this guide for if my Mavericks is installed using clover?

No, that's why the title of this thread states "...Using UniBeast and MultiBeast".

 

[changerrs]

sorry I am a little late to the party, but will this erase all my stuff on my computer?

 

[P1LGRIM]

sorry I am a little late to the party, but will this erase all my stuff on my computer?

Read the first line of the guide to answer your own question :

Save all of your settings, files, apps, etc... by following this simple guide to upgrade OS X Mavericks to OS X Yosemite

 

[drho2004]

Updated two machines today relatively painlessly, both old hardware, the testbed Hack with a P5KPL-VM and the main user with a GA-P55M-UD4. No major issues..

Hello! I have a GA-P55M-UD4 currently running mavericks 10.9.5 and have attempted to update to yosemite afew times now. I get stuck everytime after it installs and it reboots again from usb and i choose the yosemite install (hdd) it goes into apple gray screen with progress bar and nothing happens. I waited the most about 1 hour. Did u try anything special when you updated your mavericks? I followed the guide to a T but no luck. Thanks!!

 

[drho2004]

Hello! I have a GA-P55M-UD4 currently running mavericks 10.9.5 and have attempted to update to Yosemite a few times now. I get stuck every time after it installs and it reboots again from USB and i choose the Yosemite install (HDD) it goes into apple gray screen with progress bar and nothing happens. I waited the most about 1 hour. Did u try anything special when you updated your mavericks? I followed the guide to a T but no luck. Thanks!!

Booted with -v flag and noticed it got stuck at PCI Configuration Begin, not sure how to proceed from here

 

[KiwiHaggis]

The steps outlined in this post are spot on. Thanks again for the wealth of knowledge on this site.

 

[kessaras]

hi, what about when the yosemite is not available anymore for our country in app store ? Where is best to download yosemite from ?
And what about the boot loader , i will use same boot flags as in mavericks ? my machine is fully compatible and i only use npci=0x2000 to boot on mavericks and only sleep isn't working.

 

[SDB49]

Any help on this. Been at it for the last 7 hours (yes) and looked through dozens of posts re:
Can't find /mach_kernel
I have an SSD w/ 2 partitions
1 Mtn Lion - works fine
2 Yosemite - only works with USB key and even then freezes up on me sometimes.

There are so many posts on this and none of the suggested fixes have worked for me.
I have MultiBeast 7.5. There's no .plist entries to remove and I have no idea what else to try.
Chimera v2.2.1 r2248

Please help!

 

[jlopez37]

My system is GA-X58A-UD3R running 10.8.5 . When I boot from the usb it says cannot find mach_kernel. I deleted this lines in /Extra/org.chameleon.Boot.plist:
<key>Kernel</key>
<string>mach_kernel</string>

But Yosemite displays still the same error "Can't find mach_kernel" so I can't reach the installer.
Regards.