[Bug 40119] Re: SPARC boot failed: Illegal Instruction

[MrRick]

Had same failure with Ultra10 with it hanging up at the same point. Removed Sun graphics board and used monitor output from system board (motherboard). Was then able to complete installation without a hitch.
 A cold boot helped until I was able to format the hard drive and removed Solaris 10. Cold boot was not required after that.
Hope this helps

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SPARC boot failed: Illegal Instruction
https://launchpad.net/bugs/40119