[Mu French]

Hi,,

i have late 2013 iMac 27"

i tried to install elcapitan from the app store,, installation didn't complete, and that i can't boot into Yosemite anymore!!

i tried internet recovery and i left it for 2 days and nothing has changed, so i decided to make el capitan usb installer in "vmware" using windows and diskmaker then boot into it and try to reinstall El Capitan OS X.. after i booted into the installer partition and apple logo has appeared and progress bar has completed i got this &%$# SIGN! i don't know what is that and i have no idea about this error..

s31.imgup.net/IMG_2015084280.jpg
(i don't have backup and i won't do format or clean my files)
i need help please!

[Just_Me_D]

The help you need will more than likely be one of the things you've stated you did not want to do.

[HankAZ]

Sorry to hear this, but working without a net (a backup) can be risky.

I'm not positive, but I thing that symbol may be saying that you are trying to boot from a non-bootable drive.


Sent from my mobile device using Tapatalk v3.2.1.

[patternjake]

Try resetting the PRAM, or as a last resort order a dual layer Yosemite (bootable) DVD from Amazon. You can pick these DVD's for less than $20.

[infty]

I got the same symbol too. I was with AppleCare for about one hour. They were completely useless. They told me to do exactly what I had already done. Which was to do the control option P, R reboot. And do the options R reboot to reinstall El capitán. That hasn't worked when I tried it and it didn't work for they told me to try it. Finally I'm having to do what I dreaded doing. I'm reinstalling from my Time Machine backup. It is taken eight hours and I have three hours left.

Not at all happy with El capitán.

[kch50428]

I'm running the latest ElCap 10.11.1 beta that came out today on a circa 2008 MacBook Pro... it's working fine...

[Just_Me_D]

I'm running the latest ElCap 10.11.1 beta that came out today on a circa 2008 MacBook Pro... it's working fine...

Same here on a MacBook 2009 model. No problems installing and no problems running it.