I/O errors accessing a Yosemite volume

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i noticed few days ago. trying set development system yosemite when stumbled upon file named "[" i'd never seen before. turns out it's copy of unix "test" command.

during little sidetrack, noticed when tried read or infe on "[" file os report "input/output error." assumed there bad block on drive because if is, that's message command line. rebooted mountain lion volume, use base os , used scannerz test hard drive. scannerz found nothing wrong - nothing!

@ point had stopped because else answered "[", drive looked ok, , thought oddity. last night returned trying set partition development , once again, i'm getting input/output errors, on that's on yosemite. mounted mountain lion partition.

wrote little program super user level authentication , wasn't allowed open file on yosemite partition read it. it's entire drive has been "blocked off" access.

i'm not security guy, , hadn't put lot of time looking @ yosemite's underlying features. these being caused resource fork settings , can changed easily?

right it's sort of pia trying deal thing.
 

is yosemite partition using corestorage? encrypted?

diskutil list
diskutil cs list

ds
 


Forums Macs macOS OS X Yosemite (10.10)


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