iMac hangs on boot even after reinstall

Question

iMac Intel 21.5" EMC 2389

Model A1311 / Mid 2010 / 3.06 & 3.2 GHz Core i3 or 3.6 GHz Core i5 Processor

342 个问题查看全部

Acey @evalley

声誉积分: 31

2

1

发帖于: 2016年3月2日

更多选项

iMac hangs on boot even after reinstall

I have an iMac that hangs on boot, even after having its disk erased and OS X reinstalled from Recovery Console. I just tried to boot into the fresh install, and it's been stuck on the splash screen for about 45 minutes.

Disk selection comes up in 2 or 3 minutes if I hold option- I've been able to boot into an external drive with a known good clone, but only intermittently- once out of every three attempts.

It will open recovery console, but very slowly- takes 15 minutes or more.

I can't persuade it to run AHT from the OEM disc- the build-in CD/DVD drive won't accept the disc, and it doesn't seem to recognize the disc in an Apple external drive.

Anything else I should try? Is this a hard drive problem, or something deeper?

已回答！ 显示答案我也有这个问题

这是一个好问题吗？

是否

得分 1

添加一条评论

2个答案

已选择的解决方案

mayer @mayer

声誉积分: 685.3千

MacHale Enterprises

3.4千

1.1千

2.6千

发帖于: 2016年3月2日

更多选项

I'd disconnect the hard drive and see if the machine will then accept the DVD. Next try an external USB flash drive or an external hard drive with a system on it.

这个答案有帮助吗？

是否

得分 3

2条评论:

Still won't run AHT, but after removing the hard drive, it's booting from the external drive much faster and more consistently. Guess we'll see what happens when the replacement drive comes in,

由 Acey 完成的 2016年3月3日

Could you boot from the DVD? What happens when booting from the DVD and holding down the "D" key? What OS X are you running on the external drive? Do you have another Mac with a Firewire 800 connector (to run in Target Mode)?

由 mayer 完成的 2016年3月3日

添加一条评论

Still won't run AHT, but after removing the hard drive, it's booting from the external drive much faster and more consistently. Guess we'll see what happens when the replacement drive comes in, — Acey
Could you boot from the DVD? What happens when booting from the DVD and holding down the "D" key? What OS X are you running on the external drive? Do you have another Mac with a Firewire 800 connector (to run in Target Mode)? — mayer

Matthew Toplack @matt_toplack 声誉积分: 57 ParmaComputers 3 · Answer 1 · 2016-03-02T17:08:06-07:00

Matthew Toplack @matt_toplack

声誉积分: 57

ParmaComputers

3

发帖于: 2016年3月2日

更多选项

I had a similar issue with my iMac, of the same model. Despite Disk Utility saying that the health of my drive was fine when booted from an external device, I went ahead and replaced it anyways. The slow loading times have since been fixed. Bad/Dying Hard Drive is likely your issue

这个答案有帮助吗？

是否

得分 2

3条评论:

On second read, you may have a deeper issue. However, the first and easiest step would seem to be trying a new hard drive. Also, while the machine is open, take a look for any signs of water damage. Keep us posted!

由 Matthew Toplack 完成的 2016年3月2日

Replacement hard drive worked well and the iMac is back in service.

由 Acey 完成的 2016年3月21日

Sounds good. Glad I could help

由 Matthew Toplack 完成的 2016年4月8日

添加一条评论

iMac Intel 21.5" EMC 2389

iMac hangs on boot even after reinstall

2个答案

添加你的答案