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Apple Computing Products:
macOS - Operating System
Use target mode to repair HD?
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<blockquote data-quote="juicer52" data-source="post: 1900299" data-attributes="member: 410231"><p>I did try NVRAM reset but it didn't work as expected. Only holding control while choosing the boot device after Start+Option returned the boot sequence to the one just selected. In so doing, I selected he Macintosh HD instead of EFI so grub> was gone at reboot. Still goes to gray screen after short delay on progress bar.</p><p>D on startup run in extended mode shows no problems. If I am reading the screen properly Command+S indicates boot drive is "not readable". However, /sbin/fsck -fy indicates drive is fine (though "f is disabled").</p><p>Curious why the Mac will boot from the Linux Mint live CD but will not boot from an external HD with High Sierra installed which shows as an option on Start+Option.</p></blockquote><p></p>
[QUOTE="juicer52, post: 1900299, member: 410231"] I did try NVRAM reset but it didn't work as expected. Only holding control while choosing the boot device after Start+Option returned the boot sequence to the one just selected. In so doing, I selected he Macintosh HD instead of EFI so grub> was gone at reboot. Still goes to gray screen after short delay on progress bar. D on startup run in extended mode shows no problems. If I am reading the screen properly Command+S indicates boot drive is "not readable". However, /sbin/fsck -fy indicates drive is fine (though "f is disabled"). Curious why the Mac will boot from the Linux Mint live CD but will not boot from an external HD with High Sierra installed which shows as an option on Start+Option. [/QUOTE]
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Apple Computing Products:
macOS - Operating System
Use target mode to repair HD?
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