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Acer Aspire V3-772G and HighSierra : still waiting for root device
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By fusion71au
AppleAHCIPort.kext v328 from High Sierra PB1_17A291m.
Info.plist has been edited so Bundle version is 999.1.1 ---> give higher priority loading in kernel cache/pre-linked kernel than v329 from later betas/GM. Need to disable SIP (since editing info.plist invalidates Apple's kext signature).
Install in /Library/Extensions (so doesn't get over-written during updates) repair permissions, rebuild caches eg
sudo chown -R 0:0 /Library/Extensions/AppleAHCIPort.kext && sudo chmod -R 755 /Library/Extensions/AppleAHCIPort.kext sudo touch /System/Library/Extensions && sudo kextcache -u / Test kext is loadable...
sudo kextutil -tn /Library/Extensions/AppleAHCIPort.kext Confirm kext is loaded after rebooting the system...
kextstat | grep AHCIPort To use with a USB installer, the kext needs to be included in the prelinkedkernel. Use PLK.tool attached to post#13 to create a new prelinkedkernel with AppleAHCIPort.kext v328, then replace original prelinkedkernel in the installer - post#16.
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By b31k
Hello
My system is
Asus Z170-P Motherboard
i5 6600K Processor
NVIDIA GeForce GTX 1050 Ti 4095 MB
Be-quiet 500W PSU
Crucial 16 GB 2400 MHz DDR4
BIOS:
xHCI Handoff enable
Serial Port disable
SATA AHCI mode
IOAPIC 24-119 Entries (enable y disable) two mode stuck
I can not build a robust and stable system, The system Sierra is already installed but when I restart or shut down, I get the error Still waiting for root device error, but after too many reboot ( from 2 times to 9) start correctly or other times leave too minutes, with prohibited symbol and finally starts.
Once started recognised correctly HDD.
Also I tried with a new EVO860 nvme SSD , but I have the same problem.
I dont know because sometimes yes sometimes no, the system stuck in this error
I add some information files and logs.
sudo touch /System/Library/Extensions && sudo kextcache -u /
kext-dev-mode allowing invalid signature -67030 0xFFFFFFFFFFFEFA2A for kext HackrNVMeFamily-10_12_6.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext FakeSMC.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext BrcmPatchRAM2.kext
kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext BrcmFirmwareRepo.kext
thank you.
Solution by Rehabman;
Extracting my native/clean DSDT using Clover F4.
and check with diff DSDT file.
My SystemMemory addresses in DSDT are mismatched:
SPEEDY-NUCatched rehabman$ diff ../origin/ ../patched/|grep SystemMemory
< OperationRegion (GNVS, SystemMemory, 0xC74EC000, 0x06D5)
> OperationRegion (GNVS, SystemMemory, 0xC74FE000, 0x06D5)
< OperationRegion (CPSB, SystemMemory, 0xC6CC0F98, 0x10)
> OperationRegion (CPSB, SystemMemory, 0xC6CD2F98, 0x10)
and other mistake in OperationRegion(PNVA,SystemMemory,PNVB,PNVL)
< Name (PNVB, 0xC74F1018)
> Name(PNVB,0xC7503018)
My system after too many month , keep stable the still waiting error no appear again, it seems that the problem was with the memory addresses in my DSDT.
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By TheCoolGuy
So i'm trying to install OSX 10.4 Tiger (patched for intel cpus) on a 9 year old laptop, so far i've burnt a DVD and tried to boot from it, when not starting with -v it loads and then a prohibited sign shows up, and when starting with -v it keeps saying "still waiting for root device", i've tried multipile fixes and none of them work, and im sure there isnt a problem with the computer as it also fails to boot on my core 2 duo machine, so is it possible one of you guys knows how to fix this? Thanks in advance!
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By Bruno49
Salve, sono passato da Yosemite ad El Capitan, dopo aver installato quest'ultimo sul PC in firma con il bootloader chameleon, tutto funziona correttamente: scheda grafica, rete ed audio, usb etc.. tutto ok, l'unico problema è che quando avvio il pc senza la USB di installazione, quindi direttamente da HD dove ho installato El Capitan, dopo diverse righe con AppleUSBEHCIPort@fd300000..... il pc si blocca su : still waiting for root device. Quindi sono costretto ad avviare sempre dalla USB.
Qualcuno può' aiutarmi per piacere?
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By iStigPL
This topic is to gather all information about "still waiting for root device" in one place.
Few days ago I wrote about running El Capitan on the Skylake rig
http://www.insanelymac.com/forum/topic/308576-success-el-capitan-build-15b30a-on-skylake-i7-6700-with-some-bugs/?p=2184344
I passed all information to Pike R. Alpha, so hope he and others find the solution for everybody:
The most intresting thing is some bios option called "IOAPIC 24-119 Entries" which is enabled by default.
You have to disable it to forget about "still waiting for root device" :-)
Why this option is intresting ? it and the other 3 options are not avaible in the newest bios version. I've allready checked all versions and it is avaible in: 0701, 0801, 0902. The newest version 0907 is missing it:
Dumping ACPI gives nothing - the tables look the same with and without that option enable. If someone want to look at it, here it is: https://dl.dropboxusercontent.com/u/40896256/Hackintosh/MB/Asus/Maximus%20VIII%20Gene/Archiwum.zip
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