I have accidentally deleted the file System/Library/Extensions/IOStorageFamily.kext by mistake. I know how stupid this was!
Now my iMac (model 2008, running Mavericks) gets stuck on the grey startup screen and hangs forever after the Apple logo turns into a no entry sign whilst the wheel continues to turn forever, see the following link for image showing this screen:
No entry sign on startup screen
I have run Disk Utility from the install CD and repaired the disk permissions with no success.
I have tried to run the rescue partition by using the Command + R key but this just displays my exsisting HD and does not show another option.
I have tried to boot into single user start with no success. The screen eventually hangs and says it can not find IOStorageFamily.kext.
I have tried to boot into safe mode with no success. It simply fails with the no entry sign as above.
I have reset the PRAM but this did not make any difference.
I have done a hardware test using the D key on startup but this returned no errors.
Please can someone advise if there is any way to fix this problem and if the is then what is the best way to do it? I know that it is not a harddrive failing or anything else and is simply because I accidently deleted the IOStorageFamily.kext file. Surely there is a way to repair this?
I appreciate any help or advice.
Many thanks
I have managed to fix the problem by using the following method:
http://support.apple.com/kb/PH13842
It says:
If you have two Mac computers with FireWire or Thunderbolt ports, you
can connect them so that one of them appears as an external hard disk
on the other. This is called “target disk mode.”
Connect the two computers with a FireWire or Thunderbolt cable. Start
up the computer to be used as a disk in target disk mode: If the
computer is off, start it up while holding down the T key.
If the computer is on, choose Apple menu > System Preferences, click
Startup Disk, then click Target Disk Mode.
When the computer has started up, a disk icon appears on the desktop
of the other computer.
Transfer files by dragging them to and from the disk. Eject the disk
by dragging its icon to the Trash. While you drag, the Trash icon
changes to an Eject icon.
On the computer you used as a disk, push the power button to shut it
down, then disconnect the cable.
After connecting to another Mac I simply copied the deleted file back into the correct directory from the host Mac.
I then booted my Mac successfully and repaired the file permissions via Disk Utility.
Related
I am having problem with Android Studio where my Andrdoid virtual device gets terminated for no clear reason!
I tried searching all over internet and Stackoverflow but nothing seemed to work for me.
Tried everything from installing just SDK, Buildtools, Envoirnment-variables, to completely deleting and reinstalling android studio but issue persists. Ps it's not space issue as i have plently available
Solution
it's temporary fix but works!
open Android Virtual Device manager.
click 3dots(located right after the pencil)
click show on device
delete the cache file. (there will be file named cache)
There will be file named config.ini, (open it and change hw.ramSize=3068 hw.cpu.ncore=1 ) cores and ram
you can also change ram and cores from that pencil and going to advanced.
after that do a cold start and wait patiently!! it will load up after a while! it works ....
i just did it.. but i have to do it everytime...😒
I downloaded the agora.io video sdk asset from the asset store, imported it to a new project. On the demo "SceneHome" scene, I entered the api id. Clicked play, and as soon as I click the "join" button Unity crashes. As far as I can tell the crash happens on the
app.join(field.text);
line in the TestHome.cs script (line #86).
I tested it in 2019.3.2f1 and 2020.1.0b5. The result was the same.
The OS is Catalina 10.15.4.
The demo works on Windows.
I followed this tutorial: https://medium.com/#jake_agora.io/mac-run-video-chat-within-your-unity-application-e001091db62f but used x86_64 dlls instead of x86
Does anyone know what this is about? Or where should I begin to look?
Another tutorial, this one from Agora:
https://www.agora.io/en/blog/run-video-chat-within-your-unity-application-mac
It can be caused by missing the Camera and Microphone usage in the Unity Editor project setting. Please let us know if that's the case. (I saw you are also on the Slack channel, let's continue the conversation there.).
For the people who didn't know, Agora Developer Community - Unity Chat channel is here :)
As herve nau pointed out the problem was that the Unity did not had the permission to use camera or microphone. And the solution should work. Alternatively, here is another way to add the permission as described by launzone:
1) Disable SIP: Go into recovery mode (hold CMD+R when you
restart your Mac) Don't be afraid, we are not doing anything crazy.
2) After that open Terminal (it should be accessible from one of the
Menus at the Top) Type in "csrutil disable" and hit enter. Then reboot
your Mac normally.
3) Open Terminal and type in: "sqlite3 ~/Library/Application\
Support/com.apple.TCC/TCC.db" and hit enter
4) For microphone access, type in: "INSERT INTO access
VALUES('kTCCServiceMicrophone','com.unity3d.unityhub',0,1,1,NULL,NULL,NULL,'UNUSED',NULL,0,1541440109);"
and hit enter
For camera, type in: "INSERT INTO access
VALUES('kTCCServiceCamera','com.unity3d.unityhub',0,1,1,NULL,NULL,NULL,'UNUSED',NULL,0,1541440109);"
and hit enter
6) check in your SystemPreferences/Security&Privacy > unity hub should
now show up in both mic and cam
7) reboot in recovery mode again (CMD+R), open terminal again, type
in: "csrutil enable" and hit enter, to enable SIP again
8) reboot normally and enjoy!
Here is the full thread. I hope it helps someone :)
check if not related to the webcam registration issue on macOs with the Unity Hub running. Fix for the camera, not sure if related to your problem: Remove the Unity Hub app, then open the project directly from Unity App. May also be useful to relocate the Unity app in another folder to force the webcam usage security registration.
Made the test here, Unity 2019.3.11.f1, using the demo app, with Hub active -> crash on press of Join Button, did the Hub removal described above, rerun the same demo and no more crash at this level. Running on Catalina 10.15.2.
My Audio Service refuses to function properly. I have tried so many different solutions I can't even recall all of them.
Here's how it started; I got home from work one day to see my computer has no video signal but is turned on and receiving input from my mouse/keyboard. I force restart my computer and, after it boots up, I see that the Windows Audio Service is stopped.
I first try to use the task manager to start the service (Audiosrv) and it would blink at Starting then immediately go back to Stopped. From here I went to the Services window and tried starting it from there (Windows Audio) and, after trying to start, says Access Denied (Error 0x80070005).
So after searching a solution I went into regedit and was told to add System as a permission group for AudioSrv and the AudioEndpointBreaker service. Turns out they were already there with FULL CONTROL for both.
I try to change the logon to use Local System Account (WITH INTERACT DESKTOP CHECKED!) and voila, my audio service is running! But my bad luck continues.
None of my speakers/headphones are creating sound even though the service turned on and I can see all my devices. As an attempt I tried to do test sound, and this error appears.
Keep in mind I've restarted after every one of these fixes, both the service and my computer afterwards. As a final attempt I tried to open the Command Prompt as administrator and entered sfc /scannow . After verifying, this message appears.
I honestly have no clue what could've happened while I was working, but I'd rather not have to reinstall my windows to lose all my files.
Recap of my attempts to solve
Start the Audiosrv service from Task Manager (failed to start but keep in mind the EndpointBreaker service was running)
Opened services window and tried starting the Windows Audio service (Access Denied [Error 0x80070005])
Tried adding System as permission group for AudioSrv and AudioEndpointBreaker to find out both already had Administrators, my user, and System with full Control.
Changed login to local system account with interact desktop control checked and it fixed! Supposedly. THIS WAS THE FIX FOR 99% OF PEOPLE ON THE FORUMS
After realizing my sound wasn't playing but my devices/control was showing up, tried testing sound and received an error.
Last resort I did a sfc /scannow command and was given the response shown above.
What should and what can I do to get my audio running?
SIDENOTE
When I drag the volume slider [which usually creates a tone with the volume adjusted], the speakers/headphones meter on the Sound window do NOT light up green (in other words they aren't showing sound receiving on its end)
I resolved this issue after doing a system restore.
Add the Local Service in the Local Users and Groups
Right-click This PC or My Computer, depending on which version of Windows you have, and select Manage from the dropdown menu.
To the right, you will see a System Tools section. Double click Local Users and Groups, and select Groups beneath it.
Right-click Administrators in the list in the middle of the window, and select Add to group.. from the dropdown menu.
Click Add, then Advanced, and then click Find Now. Double click Local Service, and click OK. You should see NT Authority\Local Service in the list, click OK. Close the Computer Management window and reboot your device. Your problem should be solved.
Then in services.msc change logon to LOCAL SYSTEM.
If you dont permission to run Windows Audio:
key windows + Services
search Windows Audio
right click settings
login
Local system account and allow the service to interact with the desktop
save and run Windows Audio
I've had a search on the forums and the internet but couldn't find an answer to my issue.
Just updated my OSX to Catalina. I'm having a problem with Safari, when I try and download a file it tells me that there isn't enough space and to delete files. My SSD and my removable volume have more than enough space. As I only have a 128gb Macbook Pro I use an SD card as an overflow and this is where my download folder directs to. If I download using 'download file as..' and select the main SSD, it downloads fine. It just won't let me access the SD card. Chrome works fine.
I know that apps have been asking to access the removable volume, but to my knowledge, Safari has never asked permission. I've found how to add permission to for apps to access removable volumes in the privacy settings, but I cannot add safari to this list.
I've clicked the padlock and given permission but the + symbol is greyed out and I cannot drag the app from the applications folder to the window.
If somebody could point me in the right direction, I'd greatly appreciate it.
I had the same problem and fixed it as follows:
do "get info" on the downloads folder. You will see on users & groups a user "fetching" or something similar, but not your user name in the list.
click on the lock item next to the list and remove that user.
click on the + to add your name to the list.
close the lock.
Sorry if I got some details wrong. At work I'm enjoying Windows :)
I have a Surfacebook (first generation) running Windows 10 Enterprise and joined to my company's active directory domain. I'm not sure what happened (as best I can tell now updates were installed nor were any GPO applied), but I woke up to a machine that seems to have several core setting reset. All of my apps that were pinned to my Taskbar and Start Menu were gone, and my app auth tokens were reset, and the two powershell related shortcuts off the context menu of the Start button were no longer mapped to .lnk' files. I'm trying to get these powershell menu items working again and I'm having no luck.
Doing this:
Fails with:
This file was indeed gone. I don't know what removed this, but I recreated it:
But still it fails. I've checked the permissions, I own the directory and .lnk. I've rebooted and still it didn't work. Anyone know how to get this back to functional? And I would love to have a clue as to what might have caused all this to go haywire.