Upgrade El Capitan

Question

Mac Pro 2008 Author

Level 1

0 points

Upgrade El Capitan

Hi. I have Mac Pro 2008. Today I tried to upgrade my system Yosemite 10.10.5 to new El Capitan. After restart my computer installation crashed. When I was trying start my system, on the display backround was something like code. Then system restarted many times, again and again, and installation doesn 't continue. Then I tried boot the system using recovery 10.11 (it was a second option on start up while holding alt during boot). Recovery process stopped at 80% and froze. I can 't install back Yosemite and El Capitan does 't work. What can I do?

Mac Pro (Early 2008), OS X Yosemite (10.10.5)

Posted on Oct 1, 2015 9:24 AM

Reply

Answer 1

Oct 1, 2015 9:32 AM in response to Mac Pro 2008

When the installer does not complete (dies FAR from completion), your original Installation is supposed to remain, intact.

The very LAST things the Installer does is to move files into place so that at the NEXT Restart, the new files will be used to start up the new version.

¿What was the FIRST choice while holding Alt/Option at Startup?

Do you have an alternate Boot Drive or the 10.6.8 Installer/Utilities DVD?

Reply

Answer 2

lllaass

Level 10

210,411 points

Oct 1, 2015 9:33 AM in response to Mac Pro 2008

Try safe mode

OS X: What is Safe Boot, Safe Mode?

Do you have a bootable clone of any OSX version?

Do you have a bootable install media?

Do you have another mac?

Reply

Answer 3

Mac Pro 2008 Author

Level 1

0 points

Oct 1, 2015 9:59 AM in response to lllaass

Safe mode does not work. I have another MacBook Bro Mid 2009, iMac retina 2014 - everywhere is Yosemite.

Reply

Answer 4

Mac Pro 2008 Author

Level 1

0 points

Oct 1, 2015 10:00 AM in response to Mac Pro 2008

I also tried boot from usb - bootable startup disk Yosemite and El Capitano too.

Reply

Answer 5

lllaass

Level 10

210,411 points

Oct 1, 2015 10:06 AM in response to Mac Pro 2008

What exactly happens when you boot from USB?

Are you booting with Opting key?

Try pulling out the El Capitan drive.

Also try disconnecting all unnecessary peripherals when booting

Reply

Answer 6

Mac Pro 2008 Author

Level 1

0 points

Oct 1, 2015 10:09 AM in response to Grant Bennet-Alder

First choice is My system startup disk "SYS" and second choice is only "Recovery 10.11".

I have external usb disks, bootable startup disk Yosemite and El Capitano on usb drive 8 and 16 GB, but when I run these installers they stop working after a while.

Reply

Answer 7

lllaass

Level 10

210,411 points

Oct 1, 2015 10:19 AM in response to Mac Pro 2008

What do you mean by stop working?

You never get to the install screen?

Reply

Answer 8

Mac Pro 2008 Author

Level 1

0 points

Oct 1, 2015 1:01 PM in response to lllaass

When i boot from USB (8GB USB Drive- made Bootable ElCapInstaller):

everything looks ok, till the first restart

after first restart, during booting computer I see Logo Apple on white bacground and then a lot of text, something like a terminal code.

Then restart and on the screen is text (there was a problem with your computer...). Yosemite worked fantastic, without any problems. But now I can't get to my files...

Reply