• 0

Boot stuck at USBMSC Identifier (non unique)
4 4

Question

Hi, I've tried to install Yosemite. It installs, it starts up and i can get the Desktop but if i try to restart, i can't boot anymore. If i boot in -v, i can see only USBMSC Identifier (non unique).... Can somebody help me? I'm posting a screenshot of the problem

 

Thank you

 

1415640274__img_0013.jpg

Share this post


Link to post
Share on other sites

6 answers to this question

  • 0

I don't know if this is a real solution, but it works fine if I boot with the -f flag. Also added in the org.chameleon.Boot.plist in 

<key>Kernel Flags</key> 
<string>npci=0x2000 dart=0 -f</string>

and it boots fine. 
If there's a better way to make it work, please, let me know.

3 people like this

Share this post


Link to post
Share on other sites
  • 0

If there's a better way to make it work, please, let me know.

 

I solved this by downgrading to Niresh's Mavericks. the USB kexts from Yosemite are incompatible with a LOT of legacy hardware.

Share this post


Link to post
Share on other sites
  • -1

I would like to point out that if you remove all the "IOUSB*" kexts from /System/Library/Extensions you can successfully boot, but you won't have USB support. I have the same problem, and I haven't found a viable solution yet.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
4 4