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Apple Computing Products:
macOS - Operating System
Fail to boot up after downloading Yosemite
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<blockquote data-quote="ArkyMac" data-source="post: 1631005" data-attributes="member: 340674"><p>Hi folks, my first post. I know this came up several months ago, but I just downloaded Yosemite and having major problems. Have 2 year old iMac. Had Mtn Lion running (not Mavericks). Now can't boot up. The download progressed, but then auto restart just hangs after about 25% loaded. No amount of rebooting works, nor does waiting many hours make a difference. Tried holding down many different keys while rebooting using other people suggestions, no luck. What I can do is boot with Option key and see Disk Utilities, and boot with Shift key and get to the login screen for Safe Boot but when I enter my Mac password the dreaded colour wheel of doom just spins forever, I never get in to Safe Boot. Seems like the Yosemite download has disabled or changed my keychain password. I do have Time Machine backup to about a month ago, but have one Word file on current desktop that was recently working on and hate to lose it. So I can restore all with Time Machine from my external, but will lose everything on current HD. Starting to panic.</p><p></p><p>I tried Command+R start then disabled wifi and restarted, no help. Also tried Option+Command+R which is supposed to boot from internet and not internal drive, but this also takes me to Disk Utilities and I can't see how to fix problem from there. </p><p></p><p>UPDATE: today i was able to get into Internet Recovery, the default option here is to reload the original OS to the mac,which would be Mtn Lion and that would be great, but when it goes to verify this it tells methat it can't write the system to the disk. I can reload Yosemite and have done so twice,but no improvement. </p><p>Any suggestions much appreciated.</p></blockquote><p></p>
[QUOTE="ArkyMac, post: 1631005, member: 340674"] Hi folks, my first post. I know this came up several months ago, but I just downloaded Yosemite and having major problems. Have 2 year old iMac. Had Mtn Lion running (not Mavericks). Now can't boot up. The download progressed, but then auto restart just hangs after about 25% loaded. No amount of rebooting works, nor does waiting many hours make a difference. Tried holding down many different keys while rebooting using other people suggestions, no luck. What I can do is boot with Option key and see Disk Utilities, and boot with Shift key and get to the login screen for Safe Boot but when I enter my Mac password the dreaded colour wheel of doom just spins forever, I never get in to Safe Boot. Seems like the Yosemite download has disabled or changed my keychain password. I do have Time Machine backup to about a month ago, but have one Word file on current desktop that was recently working on and hate to lose it. So I can restore all with Time Machine from my external, but will lose everything on current HD. Starting to panic. I tried Command+R start then disabled wifi and restarted, no help. Also tried Option+Command+R which is supposed to boot from internet and not internal drive, but this also takes me to Disk Utilities and I can't see how to fix problem from there. UPDATE: today i was able to get into Internet Recovery, the default option here is to reload the original OS to the mac,which would be Mtn Lion and that would be great, but when it goes to verify this it tells methat it can't write the system to the disk. I can reload Yosemite and have done so twice,but no improvement. Any suggestions much appreciated. [/QUOTE]
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Apple Computing Products:
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Fail to boot up after downloading Yosemite
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