Reboot fail after installing El Capitan help!!

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After 24 hours if wars with my old macbook pro 2009 finally i'm on 10.11

My not signed kext

ACS6x.kext

ArcMSR.kext

ATTOCelerityFC8.kext

ATTOExpressSASHBA2.kext

ATTOExpressSASRAID2.kext

CalDigitHDProDrv.kext

EPSONUSBPrintClass.kext

HighPointIOP.kext

HighPointRR.kext

LittleSnitch.kext

PromiseSTEX.kext

SoftRAID.kext

tap.kext

TrimEnabler.kext

tun.kext

/System/Library/Extensions/CoolBook2.kext

/System/Library/Extensions/Cruzer MAC Extension.kext

/System/Library/Extensions/EPSONUSBPrintClass.kext

/System/Library/Extensions/HuaweiDataCardDriver.kext/Contents/PlugIns/HuaweiData CardACMControl.kext

/System/Library/Extensions/HuaweiDataCardDriver.kext/Contents/PlugIns/HuaweiData CardACMData.kext

/System/Library/Extensions/HuaweiDataCardDriver.kext/Contents/PlugIns/HuaweiData CardActivateDriver.kext

System/Library/Extensions/HuaweiDataCardDriver.kext/Contents/PlugIns/HuaweiDataC ardDMM.kext

/System/Library/Extensions/HuaweiDataCardDriver.kext

/System/Library/Extensions/HuaweiDataCardDriver.kext/Contents/PlugIns/HuaweiData CardECMControl.kext

/System/Library/Extensions/HuaweiDataCardDriver.kext/Contents/PlugIns/HuaweiData CardECMControl.kext

/System/Library/Extensions/HuaweiDataCardDriver.kext/Contents/PlugIns/HuaweiData CardECMData.kext

/System/Library/Extensions/HuaweiDataCardDriver.kext/Contents/PlugIns/HuaweiData CardHidPort.kext

System/Library/Extensions/HuaweiDataCardDriver.kext/Contents/PlugIns/HuaweiDataC ardJUBusDriver.kext

/System/Library/Extensions/HuaweiDataCardDriver.kext/Contents/PlugIns/HuaweiData CardJUCDCACM.kext

/System/Library/Extensions/HuaweiDataCardDriver.kext/Contents/PlugIns/HuaweiData CardJUCDCECM.kext

/System/Library/Extensions/HuaweiDataCardDriver.kext/Contents/PlugIns/HuaweiData CardJUCDCNCM.kext

System/Library/Extensions/HuaweiDataCardDriver.kext/Contents/PlugIns/HuaweiDataC ardJUNetwork.kext

/System/Library/Extensions/HuaweiDataCardDriver.kext/Contents/PlugIns/HuaweiLogL evel.kext

/System/Library/Extensions/IceraUSBMassStorageBypass.kext

/System/Library/Extensions/NMHuaweiPhonesVTPCDC_106.kext

/System/Library/Extensions/NMSamsungDriver_106.kext

/System/Library/Extensions/NMSmartplugSCSIDevice_106.kext

System/Library/Extensions/NMHuaweiPhonesVTPCDC_106.kext/Contents/PlugIns/NMUSBCD CACMControl_106.kext

/System/Library/Extensions/NMSamsungDriver_106.kext/Contents/PlugIns/NMUSBCDCACM Control_106.kext

/System/Library/Extensions/NMHuaweiPhonesVTPCDC_106.kext/Contents/PlugIns/NMUSBC DCACMData_106.kext

/System/Library/Extensions/NMSamsungDriver_106.kext/Contents/PlugIns/NMUSBCDCACM Data_106.kext

/System/Library/Extensions/NovatelWireless3G.kext

System/Library/Extensions/NovatelWireless3G.kext/Contents/PlugIns/NovatelWireles s3GData.kext

/System/Library/Extensions/NovatelWirelessFilter.kext

/System/Library/Extensions/NovatelWirelessUSBCDCECMControl.kext

/System/Library/Extensions/NovatelWirelessUSBCDCECMData.kext

/System/Library/Extensions/Option72.kext

/System/Library/Extensions/OptionHS.kext

/System/Library/Extensions/OptionMSD.kext

/System/Library/Extensions/OptionQC.kext

/System/Library/Extensions/PACESupportFamily.kext

/System/Library/Extensions/PACESupportFamily.kext/Contents/PlugIns/PACESupportLe opard.kext

/System/Library/Extensions/PACESupportFamily.kext/Contents/PlugIns/PACESupportPa nther.kext

/System/Library/Extensions/PACESupportFamily.kext/Contents/PlugIns/PACESupportTi ger.kext

System/Library/Extensions/RIMBBUSB.kext

/System/Library/Extensions/RIMBBVSP.kext

/System/Library/Extensions/USBExpressCardCantWake_Huawei.kext

/System/Library/Extensions/Vodafone.kext

/System/Library/Extensions/Vodafone.kext/Contents/PlugIns/VodafoneData.kext

/System/Library/Extensions/ZTEUSBCDCACMData.kext

/System/Library/Extensions/ZTEUSBMassStorageFilter.kext

/System/Library/Extensions/cdc.kext

/System/Library/Extensions/cdc_ecm_qmi.kext

/System/Library/Extensions/hamns.kext

/System/Library/Extensions/hp_Inkjet3_io_enabler.kext

/System/Library/Extensions/hp_fax_io.kext

/System/Library/Extensions/speedit.kext

I finally ran out of boot drives in my Mac Pro so I could no longer ignore it.

El Capitan could not get to the login screen.

There were a couple of corrupt cache files that Launch Services relied on.

After deleting them, I was able to reboot and finally reach the login screen.

See the article herein "Fix for El Capitan stuck at login" by robertk1 for details to search for the appropriate Cstore files to delete. Online articles may describe a process called "Reset Launch Services".

This may have been a problem for many OSXes. However, the files moved around and have had different names and locations.

My issue occurred before reaching the login screen.

Others were having problems after reaching the login screen and logging in.

What exactly happens when you try to boot?

Take each of these steps that you haven't already tried. Some of them may not be applicable to your model or your situation. Stop when the problem is resolved.

To restart an unresponsive computer, press and hold the power button for a few seconds until the power shuts off, then release, wait a few more seconds, and press it again briefly.

Step 1

The first step in dealing with a startup failure is to secure the data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since the last backup, you can skip this step.

There are several ways to back up a Mac that is unable to start. You need an external hard drive to hold the backup data.

a. Start up from the Recovery partition, or from a local Time Machine backup volume (option key at startup.) When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.” The article refers to starting up from a DVD, but the procedure in Recovery mode is the same. You don't need a DVD if you're running OS X 10.7 or later.

b. If Step 1a fails because of disk errors, and no other Mac is available, then you may be able to salvage some of your files by copying them in the Finder. If you already have an external drive with OS X installed, start up from it. Otherwise, if you have Internet access, follow the instructions on this page to prepare the external drive and install OS X on it. You'll use the Recovery installer, rather than downloading it from the App Store.

c. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, start the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.

d. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.

Step 2

If you've started from an external drive, make sure that the internal startup volume is selected in the Startup Disk pane of System Preferences.

Start up in safe mode. Note: If FileVault is enabled in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Ask for further instructions.

Safe mode is much slower to start and run than normal, and some things won’t work at all, including wireless networking on certain Macs.

The login screen appears even if you usually log in automatically. You must know the login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.

If the startup progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, the startup volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 9. If you ever have another problem with the drive, replace it immediately.

If you can start and log in in safe mode, empty the Trash, and then open the Finder Info window on the startup volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then restart as usual (i.e., not in safe mode.)

If the startup process hangs again, the problem is likely caused by third-party software that you installed. Ask for further instructions.

Step 3

If the startup process stops at a plain gray screen with a movable cursor, then the login dialog may be active but not visible because of a bug. You might be able to log in by using the arrow keys or the cursor to select the password field and typing your password as usual.

Step 4

If Step 3 fails, the startup volume may be full. If you had previously seen warnings of low disk space, this is almost certainly the case. You might be able to start up in safe mode even though you can't start up normally. Otherwise, start up from an external drive, or else use the technique in Step 1b, 1c, or 1d to mount the internal drive and delete some files. According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation.

Step 5

If a desktop Mac (without a built-in keyboard) hangs at a plain gray screen with a movable cursor, the keyboard may not be recognized. Press and hold the button on the side of an Apple wireless keyboard to make it discoverable. If need be, replace or recharge the batteries. If you're using a USB keyboard connected to a hub, connect it to a built-in port.

Step 6

Sometimes a startup failure can be resolved by resetting the NVRAM.

Step 7

If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.

Step 8

Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to start up, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can start up now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.

Step 9

Launch Disk Utility in Recovery mode (see Step 1.) Select the startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.

This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then restart as usual.

Step 10

If the startup device is an aftermarket SSD, it may need a firmware update and/or a forced "garbage collection." Instructions for doing this with a Crucial-branded SSD were posted here. Some of those instructions may apply to other brands of SSD, but you should check with the vendor's tech support.

Step 11

Reinstall the OS. If the Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.

Step 12

Do as in Step 11, but this time erase the startup volume in Disk Utility before installing. The system should automatically restart into the Setup Assistant. Follow the prompts to transfer the data from a Time Machine or other backup.

Step 13

This step applies only to models that have a logic-board ("PRAM") battery: all Mac Pro's, MacBooks with a removable main battery, and some others (not current models.) A dead logic-board battery can cause a startup failure. Typically the failure will be preceded by loss of the settings for the startup disk and system clock. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.

Step 14

If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

I too have this problem. Never had an issue upgrading yearly from OS X Lion 10.7, nor any kind of hardware issue on my Mid-2011 MacBook Air 13".

First installation of El Capitan, was easy and went without any hiccups. It loaded the new El Capitan no problem. It's only after the subsequent reboot/restart/shut down restart, my MacBook just hangs at boot. After the Mac chime, it just shows a white background, with Apple logo, and zero progress bar stuck indefinitely.

At this screen, I've tried:

1. restarting by holding down the power button, tens of times

2. doing a NVRAM reset tens of times

3. entering restore mode (CMD-R) several times to check for errors

4. to restore from an earlier image file of El Capitan from Time Capsule several times

5. to do a clean installation of both Yosemite and El Capitan several times from the restore utility

6. to restore from an earlier image file of Yosemite from Time Capsule ONCE, but it only to have a "prohibited sign" at reboot after completing the restore and restarting automatically

7. successfully using my Mac for an hour or so, after El Capitan has installed and running up, BEFORE i then go to restart/reboot (which then hangs)

7. all the steps (applicable to my case) you've recommended

and...... still same white background with Apple logo and zero progress bar stuck.

I think since public release on the 1st Oct till now, I've done over 10 restores/clean installations. And doing another restore of an image file a day before all these happened, just as I'm typing.

Do you still think it's hardware fault, even though:

- i'm able to complete the new clean installation each time

- i'm able to complete restore an El Capitan image file from Time Machine, and yet use my Mac under El Capitan with no issues after installation/restore for an hour or so, but yet hangs after i proceed to reboot/restart?

Note: After each installation/restore, I start backing up to Time Machine just have an image after each trial.

I appreciate your time and help.

Thanks!

SweeJ

Hi, I have the same issue.

Downloaded ElCap yesterday and installed without any problem. Did look beautiful but got some syncing problems with my iPhone 4S with up to date iOS 9.02 (the same dreaded 'circles' as after the update to iOS8) and hoped a reboot of both devices would fix it.

But, no reboot on my Mac, only the white screen with Apple logo and a stuck progress bar.

Tried to start with 2 different external bootable HD's (a FW and a USB) but the computer does not 'see' this disks. They are working OK, tried them with my wife's Mac, and both HD's do boot.

Also, in recovery mode it does not see the recovery partition.

Only recovery via internet works, El Cap gets re-installed and I'm back in my Mac, everything working.

Tried to reboot again, and the Mac is again stuck with a non-moving progress bar.

Again recovery via internet, and my Mac works again, I'm typing this post with it at the moment.

I'm making a clone with CCC right now, takes a while (> 500GB) to see if this disk will work.

Strange is also that I made a Time Machine backup 3 days ago that I can see on my wife's Mac (still on Yosemite), but my Mac in recovery mode sees only older backups, from july and earlier.

Using my internal SSD in target mode works OK, all my files are there, and I can see the EFI and recovery partitions, but also my wife's Mac is not booting with that disk, the same stuck statusbar...

So, I believe my Mac's hardware is OK, it looks that my 1 month old Samsung EVO SSD could be broken, (some system files somehow repeatedly erased?) but disk utility does not find any problems.

I'm pretty sure when I reboot I have again to do a recovery.

Will try and keep posted...

Hopefully someone has any idea?

My system is a Macbook Pro 15" I7 2.2Ghz, 16GB memory and a Samsung EVO 1Tb SSD.

Logic board was replaced by Apple last month under extended warranty because of a GPU failure...

I'm having the exact same issue as well. I can do a reinstall, and the system works great - but if I dare to do a reboot, it's stuck on the progress bar with 0%.

For whatever reason I'm also unable to start in safe mode. Only way I can bring the system back is to do a recovery and reinstall.

Forgot to write: Also with me Safe Mode not working.

The problem seems, at least to me, not to be faulty hardware, but an ElCap problem that causes some(?) system files to get corrupt while rebooting.

Why does, after reinstalling ElCap via internet, the Mac start up as normal, but will not reboot...???

As I wrote: in target mode another Mac has the same problem with a stuck progress bar.

Disk utility sees no problems at all...

Note: I did not do a clean install (yet).

Wolfman2015: What kind of system and HD/SSD do you use?

You're not alone, I finally had to do a restore to the previous OS. Everything I tried with Apple Tech Support holding my hand failed. I finally restored backwards.

Lost my Parallels/Windows 7 in the process but at least the machine is usable now.

El Capitan = no bueno.

Additional Details: iMac (Mid 2011) stock factory configuration. I upgraded from Yosemite.

This is pretty frustrating. Glad to see that my situation is not unique, but would rather see a resolution/fix from Apple.

Hi, I had the same problem, in my case it was a faulty kext of Eltima's SyncMate.

I removed it using terminal in the recovery partition.

You can check what is causing your problem (probably a kernel panic) keeping CMD+S pressed at the startup chime.

Your Mac will try to start in single user mode and will panic after a short time.

Examining what you will see on your screen you will hopefully find the software that is causing the problem.

Regards,

Luca

Interesting! It appears to be the same culprit for me. Would you mind sharing the steps you took within terminal to resolve?

Much Appreciated!,

Unfortunately, this is the only solution reinstall from USB bootable and not reboot until new updates fix are coming!!! I should remember when apple came with Snow Leopard was kind the same lots of problems, system slow, manu updates and fix lots of incompatibility software we had like 6 months of terrific time we where actually testing the system for them ... I have the feeling that El Capitan is the worse update aver ... the name itself suc*** ... How can they come up with such big GAP leave many working people stuck with a not bootable mac??!??!!? HOWWWWWWWW??

I suggest to keep always a bootable USB each time Apple come with a new big Update.

Gook luck!