Can’t boot past the white screen.

iMac won't start in normal mode Hello,I desperately need help since I have a lot of very important information on this computer. I've been trying everything, all the commandos, external drives and different time machine backups. Nothing seems to help and I still cannot make it into the computer (unless in safe mode). The computer rebooting always stops before the loading bar is full. A forced shutdown has always been necessary unless booted into recovery or safe mode for the last weeks. Maybe you can get something out of this etrecheck report? I would be grateful.EtreCheck version: 5.0 (5008)Report generated: 2018-09-26 18:37:26Download EtreCheck from https://etrecheck.comRuntime: 4:41Performance: Below AverageSandbox: EnabledFull drive access: DisabledProblem: Other problemDescription: Computer wont boot into normal mode no matter procedureMajor Issues: NoneMinor Issues:These issues do not need immediate attention but they may indicate future problems. Unsigned files - There are unsigned software files installed. They appear to be legitimate but should be reviewed.Low performance - EtreCheck report took over 5 minutes to run. This is unusual.Vintage hardware - This machine may be considered vintage.Heavy I/O usage - Your system is under heavy I/O use. This will reduce your performance.Abnormal shutdown - Your machine shut down abnormally.Hardware Information:iMac (27-inch, Late 2009) - Vintage!iMac Model: iMac11,11 2,8 GHz Intel Core i7 (i7) CPU: 4-core16 GB RAM - At maximumBANK 0/DIMM0 - 4 GB DDR3 1067 okBANK 1/DIMM0 - 4 GB DDR3 1067 okBANK 0/DIMM1 - 4 GB DDR3 1067 okBANK 1/DIMM1 - 4 GB DDR3 1067 okVideo Information:ATI Radeon HD 4850 - VRAM: 512 MBiMac 2560 x 1440Drives:disk0 - ST31000528ASQ 1.00 TB (Mechanical - 7200 RPM)Internal SATA 3 Gigabit Serial ATAdisk0s1 - EFI (MS-DOS FAT32) [EFI] 210 MBdisk0s2 - Macintosh HD (Journaled HFS+) 999.35 GB (717.87 GB used)disk0s3 - Recovery HD [Recovery] 650 MBdisk1 - PI-239 USB 2.0 Drive 1.00 TBExternal USB 480 Mbit/s USBdisk1s1 - EFI (MS-DOS FAT32) [EFI] 210 MBdisk1s2 [Core Storage Container] 999.86 GBdisk1s3 - B*******X (Journaled HFS+) 134 MBMounted Volumes:disk0s2 - Macintosh HD 999.35 GB (281.21 GB free)Journaled HFS+Mount point: /Network:Interface Bluetooth-Modem: Bluetooth DUNInterface en0: EthernetInterface en5: iPhone 2Interface fw0: FireWireInterface en1: AirPort802.11 a/b/g/nInterface en4: iPhoneInterface en3: Bluetooth PANSystem Software:macOS High Sierra 10.13.6 (17G65) Time since boot: Less than an hourConfiguration Profiles:Information not availableSecurity:SystemStatusGatekeeperEnabledSystem Integrity ProtectionEnabledUnsigned Files:Launchd: /Library/LaunchDaemons/PACESupport.plistExecutable: /System/Library/Extensions/PACESupportFamily.kext/Contents/Resources/paceloadDetails: Exact match found in the whitelist - probably OKKernel Extensions:/Library/ExtensionsNIUSBMaschineController.kext (Native Instruments GmbH, 2.8.0 (R36) - SDK 10.9)/System/Library/ExtensionsNIUSBAudioDriver.kext (2.4.21 (R30))DigiDal.kext (8.0.3x225)DigiIO.kext (8.0.3x225)M-AudioFastTrack.kext (M-Audio Fast Track USB 1.8)PACESupportFamily.kext (5.9.1 - SDK 10.6)CmUSBMassStorage.kext (1.0.7)/System/Library/Extensions/PACESupportFamily.kext/Contents/PlugInsPACESupportLeopard.kext (5.9.1 - SDK 10.4)PACESupportPanther.kext (5.9.1 - SDK 10.-1)PACESupportSnowLeopard.kext (5.9.1 - SDK 10.6)PACESupportTiger.kext (5.9.1 - SDK 10.4)Startup Items:M-AudioFastTrack Path: /Library/StartupItems/M-AudioFastTrack System Launch Agents:[Not Loaded] 9 Apple tasks[Loaded] 187 Apple tasks[Running] 96 Apple tasks[Other] One Apple taskSystem Launch Daemons:[Not Loaded] 32 Apple tasks[Loaded] 191 Apple tasks[Running] 113 Apple tasks[Other] One Apple taskLaunch Daemons:[Not Loaded] com.github.IngmarStein.Monolingual.Helper.plist (Ingmar Stein - installed 2015-09-22)[Not Loaded] com.adobe.fpsaud.plist (Adobe Systems, Inc. - installed 2018-08-27)[Not Loaded] com.apple.aelwriter.plist (Apple - installed 2012-03-08)[Not Loaded] com.apple.qmaster.qmasterd.plist (Apple - installed 2010-08-26)[Not Loaded] PACESupport.plist (? ab6b5614 - installed 2013-02-01)[Loaded] com.apple.installer.osmessagetracing.plist (Apple - installed 2018-07-04)[Not Loaded] com.native-instruments.NativeAccess.Helper.plist (Native Instruments GmbH - installed 2017-02-24)[Not Loaded] com.paceap.eden.licensed.plist (? b8fa6e6c - installed 2015-08-10)Internet Plug-ins:Silverlight: 5.1.50901.0 (installed 2017-09-19)FlashPlayer-10.6: 31.0.0.108 (installed 2018-09-13)QuickTime Plugin: 7.7.3 (installed 2018-07-04)Flash Player: 31.0.0.108 (installed 2018-09-13)Audio Plug-ins:DVCPROHDAudio: 1.3.2 (installed 2012-03-15)3rd Party Preference Panes:Flash Player (installed 2018-08-27)Native Instruments USB Audio (installed 2015-09-18)Paragon NTFS for Mac OS X (installed 2015-09-22)Time Machine:Time Machine information not availablePerformance:System Load: 1.92 (1 min ago) 2.14 (5 min ago) 1.29 (15 min ago)Nominal I/O speed: 18.27 MB/sFile system: 62.37 secondsWrite speed: 66 MB/sRead speed: 80 MB/sCPU Usage:TypeOverallIndividual coresSystem1 %2 %0 %1 %0 %1 %0 %1 %0 %User4 %8 %0 %9 %0 %7 %0 %8 %0 %Idle96 %91 %100 %91 %100 %92 %100 %92 %100 %Top Processes by CPU:Process (count)SourceCPULocationOther processes?28.55 %EtreCheckApp Store6.03 %helpdApple0.30 %DockApple0.05 %cfprefsdApple0.03 %Top Processes by Memory:Process (count)SourceRAM usageLocationEtreCheckApp Store469 MBSafariApple76 MBDockApple55 MBiconservicesagentApple54 MBhelpdApple52 MBTop Processes by Network Use:ProcessSourceInputOutputLocationhelpdApple2 MB27 KBmDNSResponderApple91 KB64 KBapsdApple4 KB3 KBnetbiosdApple229 B0 BSystemUIServerApple0 B64 BVirtual Memory Information:Available RAM12.39 GBFree RAM1.07 GBUsed RAM3.61 GBCached files11.31 GBSwap Used0 BSoftware Installs (past 30 days):NameVersionInstall DateAdobe Flash Player2018-09-13EtreCheck5.02018-09-26Diagnostics Information (past 7 days):2018-09-26 18:23:03 Last Shutdown Cause: 3 - Hard shutdownEnd of report

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Cannot boot iMac - Suspected Hardware Issue Hi Guys, In summary, my iMac (late 2012) is not starting up and I would really appreciate some expert help! :) Problem On start-up, the following steps occur in a loop: I hear the chime. Apple logo appears. Loading bar gets to approximately seventy-five per cent. Error message displayed: 'Your computer restarted because of a problem. Press a key or wait a few seconds to continue starting up.' Automatic reboot. Suspicions I suspect there are two problems: The hard drive boot and/or recovery partitions are corrupt because I can access the main data partition using Target mode and Single User mode. But the bigger problem I think is… There is also some other hardware problem that stops me using the other recovery modes or booting from a bootable USB stick. If this is the case, then I guess I just need to give up! Hopes My only hope is that there might be some additional steps I can perform in Single User mode to recover from this situation and this is where you come in. :) All data is backed up so this is merely an attempt to see if I can recover the hardware and hopefully not have to throw this iMac away. Still in Progress I am still in the process of trying to run fsck via Single User mode, but I can’t see how this will help due to the suspected hardware issue above (#2) which stops me reinstalling the operating system, even if I can repair the hard drive. Hardware First thing I tried was unplugging all hardware apart from a keyboard to access start up key recovery options. I also plugged in a mouse when required. I tried plugging these into different USB sockets in case there was a problem with one of the sockets. I also removed all memory and tried different combinations of memory sticks in different slots in case the memory or the slots were broken. None of the above made any difference to the results. Summary of Recovery Start-up Key Results These modes succeed: Reset NVRAM/PRAM Single User mode Verbose mode Target mode. These modes fail: Boot to external drive Recovery (local or network) Safe mode Diagnostics (local or network) Here are the detailed results of attempting each of the available boot up options... Reset NVRAM/PRAM (Option-Command-P-R) Succeeds. Single User Mode (Command-S) I’m still investigating the available options including fsck. Any advice would be appreciated. Verbose Mode (Command-V) Lots of output displayed in console, then the ‘Your computer restarted because of a problem.’ error is displayed and machine reboots. I have a video of the console output which I have still to analyse to see if there are any clues there. If anyone has any suggestions of what to look for that would be appreciated. I suspect there is a key piece of information there but most of the output is meaningless to me. I will report back once I have investigated but the last couple of entries logged are: TODO Target Mode (T) Succeeds. Boot to external drive / Start-up Manager (Option) The boot manager screen appears. After selecting a bootable drive (tested on another mac), the following occurs: Apple logo appears. Loading bar gets to approximately fifty per cent. System hangs. Have tried more than bootable disk but the result is always the same. Recovery (Command-R) Apple logo appears. Loading bar gets to approximately fifty per cent. System hangs. Networked Recovery (Option-Command-R) Enter Wi-Fi password. This is because I unplugged all unnecessary hardware. If I startup with ethernet cable, the results are the same apart from having to enter Wi-Fi password. For a while I see a spinning globe and this message: ‘Starting internet recovery this may take a while.’ Apple logo appears. Loading bar gets to approximately fifty per cent. System hangs. Safe Mode (Shift) Apple logo appears. Loading bar gets to approximately eighty per cent. System hangs. Networked Diagnostics (Option-D) Enter Wi-Fi password. This is because I unplugged all unnecessary hardware. If I startup with ethernet cable, the results are the same apart from having to enter Wi-Fi password. For a while I see a spinning globe and this message: ‘Starting internet recovery this may take a while.’ This was unexpected for the local diagnostic tool. I suspect because the recovery partition is not available. Screen goes black and displays errors: Error 0x8000000000000003, Cannot load EFI/Drivers/TestSupport.efi Status 0x00000003 After a couple of minutes the system reboots and the ‘Your computer restarted because of a problem’ error is displayed. Diagnostics (D) Exactly the same as the networked version which was unexpected for the local diagnostic tool.

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imac early 2008 el capitan booting problem Hi everyone. I need some help. A few days ago during use, my mac hung itself. Force quit did not work so i needed to shut it down on the power key. From that point on i cannot get it boot up again other than in safe boot. i believe i tried every thing and ran out of ideas. So i hope that someone has a solution. I started it with cmd r and ran first aid. No problem. I started it with option cmd p r I ran apple hardware test no problem. I cleared Cache I repaired disk permissions I re-installed os el capitan I erased the disk and re-installed el capitan I changed the disk with a new one and installed os mavericks I updated os mavericks to el capitan All four led lights are switched on the logic board when i press the power key. The battery on the logic board has 3V. Etrecheck reports no obvious problem. Here is the copy of the report. Hardware Information: iMac (2008) - Obsolete! iMac Model: iMac8,1 1 2,66 GHz Intel Core 2 Duo (Duo) CPU: 2-core 4 GB RAM - At maximum BANK 0/DIMM0 - 2 GB DDR2 SDRAM 800 ok BANK 1/DIMM1 - 2 GB DDR2 SDRAM 800 ok Video Information: ATI Radeon HD 2600 Pro - VRAM: 256 MB iMac 1680 x 1050 Drives: disk0 - CT480BX500SSD1 480.10 GB (Solid State - TRIM: No) Internal SATA 3 Gigabit Serial ATA disk0s1 - EFI (MS-DOS FAT32) [EFI] 210 MB disk0s2 - Macintosh HD (Journaled HFS+) 479.24 GB (12.62 GB used) disk0s3 - Recovery HD (Journaled HFS+) [Recovery] 650 MB Mounted Volumes: disk0s2 - Macintosh HD 479.24 GB (466.36 GB free) Journaled HFS+ Mount point: / Network: Interface en0: Ethernet Interface fw0: FireWire Interface en1: Wi-Fi 802.11 a/b/g/n Interface en2: Bluetooth PAN System Software: OS X El Capitan 10.11.6 (15G22010) Time since boot: Less than an hour Safe Mode: Enabled Notifications: Notifications not available without Full Drive Access. Security: Gatekeeper: Enabled System Integrity Protection: Enabled System Launch Agents: [Not Loaded] 7 Apple tasks [Loaded] 168 Apple tasks [Running] 65 Apple tasks System Launch Daemons: [Not Loaded] 47 Apple tasks [Loaded] 161 Apple tasks [Running] 82 Apple tasks [Other] 2 Apple tasks Launch Daemons: [Not Loaded] com.apple.installer.osmessagetracing.plist (Apple - installed 2018-06-29) Internet Plug-ins: Default Browser: 601 (Apple - installed 2016-07-09) Audio Plug-ins: BluetoothAudioPlugIn: 4.4.6 (Apple - installed 2019-06-27) AirPlay: 2.0 (Apple - installed 2019-06-27) AppleAVBAudio: 406.1 (Apple - installed 2019-06-27) iSightAudio: 7.7.3 (Apple - installed 2019-06-27) Time Machine: Time Machine Not Configured! Performance: System Load: 5.15 (1 min ago) 2.86 (5 min ago) 2.67 (15 min ago) Nominal I/O speed: 12.30 MB/s File system: 47.80 seconds Write speed: 239 MB/s Read speed: 270 MB/s CPU Usage Snapshot: Type Overall System 2 % User 14 % Idle 84 % Top Processes Snapshot by CPU: Process (count) CPU (Source - Location) EtreCheck 24.58 % (App Store) Other processes 7.37 % (?) Dock 0.03 % (Apple) cloudd 0.01 % (Apple) sharingd 0.01 % (Apple) Top Processes Snapshot by Memory: Process (count) RAM usage (Source - Location) EtreCheck 286 MB (App Store) Finder 73 MB (Apple) Spotlight 71 MB (Apple) Safari 66 MB (Apple) iconservicesagent 37 MB (Apple) Virtual Memory Information: Physical RAM: 4 GB Free RAM: 192 MB Used RAM: 2.30 GB Cached files: 1.51 GB Available RAM: 1.70 GB Swap Used: 94 MB Software Installs (past 30 days): Install Date Name (Version) 2019-06-27 Security Update 2016-004 (10.9.5) 2019-06-27 EtreCheck (5.2) 2019-06-27 Security Update 2018-004 (10.11.6) 2019-06-27 iTunes (12.8.2) 2019-06-27 Safari (11.1.2) 2019-06-27 XProtectPlistConfigData (2103) 2019-06-27 MRTConfigData (1.42) 2019-06-27 Gatekeeper Configuration Data (170) Diagnostics Information (past 7 days): Directory /Library/Logs/DiagnosticReports is not accessible. Enable Full Drive Access to see more information. Thank you in advance for any sort of help

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Can’t boot past the white screen.

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