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Prohibited Signal on Boot

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I have had a working ML build of 10.8.3 for about a month now and all of a sudden yesterday when booting up it booted to a prohibited symbol.


When running in verbose mode I see that is says "Still waiting on root device"


I have never seen this issue before and when I googled for this and clover bootloader not a whole lot came up.


I am currently working with:



Radeon 7870


I have read somewhere about not using the kernel cache, but I am unable to find that anywhere in my config.plist.



Any support is welcome!



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If you have not changed anything check bios settings, Hard Disk AHCI.

(Possible bios reset)

See this post for Ignore Kernel Cache


Sorry for my English

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