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Apple Computing Products:
macOS - Operating System
OS X/Linux boot and sound problem
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<blockquote data-quote="aje02" data-source="post: 1510643" data-attributes="member: 247907"><p>Hello All</p><p></p><p>Something weird happened with me today. I have an Early-2011, 13 inch MacBook Pro running OS X Mountain Lion. I recently installed Ubuntu on my device, and I am currently using the Refit boot loader. I did a fresh install of mountain lion not long ago (before installing Ubuntu), and everything was working fine. Today, however, I realised that I cannot access the RecoveryHD partition. I tried booting to it from Refit by pressing the option key, in both cases the partition existed but selecting it booted OS X. Also, amidst all this, my Mac suddenly couldn't find any output sound devices anymore. My sound settings say "No output device found". I tried resetting the PRAM, when I did so I heard the boot chime, so I guess my speakers are working. I also tried connecting headphones; same result</p><p></p><p>I would appreciate any help</p><p></p><p>Regards</p><p>Adel</p></blockquote><p></p>
[QUOTE="aje02, post: 1510643, member: 247907"] Hello All Something weird happened with me today. I have an Early-2011, 13 inch MacBook Pro running OS X Mountain Lion. I recently installed Ubuntu on my device, and I am currently using the Refit boot loader. I did a fresh install of mountain lion not long ago (before installing Ubuntu), and everything was working fine. Today, however, I realised that I cannot access the RecoveryHD partition. I tried booting to it from Refit by pressing the option key, in both cases the partition existed but selecting it booted OS X. Also, amidst all this, my Mac suddenly couldn't find any output sound devices anymore. My sound settings say "No output device found". I tried resetting the PRAM, when I did so I heard the boot chime, so I guess my speakers are working. I also tried connecting headphones; same result I would appreciate any help Regards Adel [/QUOTE]
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Apple Computing Products:
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OS X/Linux boot and sound problem
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