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Apple Computing Products:
macOS - Operating System
Software Update problem?
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<blockquote data-quote="pod" data-source="post: 1572661" data-attributes="member: 7855"><p>I restarted my Mac whilst holding the Option key down and I see two hard drive icons: the one on the left is called Macintosh HD (with a small upward pointing arrow underneath), the right hand icon is called Recovery 10.8.2.</p><p></p><p>I am then asked for my wireless network password to get connected.</p><p></p><p>Once connected wirelessly, if I click on the Macintosh HD icon, I get the white/pale grey start up screen with the darker grey Apple logo and get taken back to my 'normal' desktop and the Mac is ready to be used as if I restarted normally (no pressing of the Option key).</p><p></p><p>If I click on the Recovery 10.8.2 icon, I get the white start up screen, which changes to a dark grey textured background and a window appears. I choose Disc Utility from that window, highlight the Toshiba HD (showing top left of the window's side bar), click the erase tab, choose Mac OS Extended Journalled, choose a name (I chose Macintosh HD) then I choose the number of overwrite passes. When I press the 'erase' button I get the following window/message: Secure Disc Erase failed. Secure Disc Erase failed with error: couldn't unmount disc.</p><p></p><p>Any ideas what I'm doing wrong?</p></blockquote><p></p>
[QUOTE="pod, post: 1572661, member: 7855"] I restarted my Mac whilst holding the Option key down and I see two hard drive icons: the one on the left is called Macintosh HD (with a small upward pointing arrow underneath), the right hand icon is called Recovery 10.8.2. I am then asked for my wireless network password to get connected. Once connected wirelessly, if I click on the Macintosh HD icon, I get the white/pale grey start up screen with the darker grey Apple logo and get taken back to my 'normal' desktop and the Mac is ready to be used as if I restarted normally (no pressing of the Option key). If I click on the Recovery 10.8.2 icon, I get the white start up screen, which changes to a dark grey textured background and a window appears. I choose Disc Utility from that window, highlight the Toshiba HD (showing top left of the window's side bar), click the erase tab, choose Mac OS Extended Journalled, choose a name (I chose Macintosh HD) then I choose the number of overwrite passes. When I press the 'erase' button I get the following window/message: Secure Disc Erase failed. Secure Disc Erase failed with error: couldn't unmount disc. Any ideas what I'm doing wrong? [/QUOTE]
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Apple Computing Products:
macOS - Operating System
Software Update problem?
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