IPhone stuck in boot loop? Don't worry, this troubleshootings will help you recover the iPhone and get back in normal condition. More specifically, it runs on Powerbook G4, iBook G4, Mac mini G4, eMac, Power Mac G5, and Power Mac G4 as well as on. Try rebooting the machine - you. If you have Karabiner-Elements installed, your Mac will reboot immediately after the system exits (after the power LED is turned off), even if you have Quit Karabiner before the system exits. In this case, there will be no startup sound. After the automatic reboot, you will get an error report 'your computer restarted because of a problem'.
- What To Do If Mac Keeps Restarting
- What Do You Do If Your Mac Keeps Restarting
- Mac Randomly Restarts
- What Does It Mean When Your Mac Keeps Restarting
About unexpected restarts
Rarely, your Mac might experience a software or hardware issue that requires it to restart. Mig17as. When it starts up again, you might see a message that your computer was restarted because of a problem.
Unexpected restarts are usually caused by software installed on your Mac, or by devices connected to your Mac. If the issue causes your Mac to restart every time it attempts to start up, your Mac might eventually shut down. Use the steps below to check the software and hardware on your Mac.
Check your software
If the issue is caused by software on your Mac, one of these steps might help:
- Install all available software updates.
- If your Mac suspects that a particular app caused the restart, it might ask whether you would like to move the app to the Trash. Click Move to Trash, then contact the software developer to see if a software update is available.
- Use safe mode to try to isolate the cause of the issue.
- Reinstall macOS. If the issue continues after reinstalling macOS, check your hardware.
Check your hardware
Learn how to check your connected devices and other hardware.
Check peripheral devices first
If you don't have any devices attached to your Mac, skip to the next section.
- Shut down your Mac.
- Disconnect all peripheral devices, such as hard drives or printers. If you have a desktop Mac, make sure that only a display, keyboard, and mouse or trackpad are connected.
- Turn on your Mac.
- Use your Mac for the amount of time that it would usually take for an unexpected restart to occur.
- If an unexpected restart occurs, follow the steps to check the internal RAM and third-party hardware.
- If an unexpected restart doesn't occur, turn off the Mac and connect one peripheral device at a time until an unexpected restart occurs.
Check RAM and third-party hardware
Certain models of Mac computers have removable memory (RAM). If you recently installed memory or a hard disk (or SSD), make sure that it's compatible and installed correctly. If possible, remove it and test with the original memory or disk.
- If you continue to experience unexpected restarts, contact Apple Support.
- If your Mac is frequently restarting unexpectedly, it's important to determine the exact steps that lead up to the issue. The next time that your Mac restarts unexpectedly, record the date and time it occurs. These questions might help you diagnose the problem:
- Was the computer starting up, shutting down, or performing a particular task when the unexpected restart happened?
- Is the computer restart random, or does it happen every time you do a certain task?
- Does the restart happen when a specific external device is connected to your Mac or to a specific port?
- Learn what to do if your Mac doesn't turn on or start up.
- Learn about the screens you see when your Mac starts up.
Please use the MorphOS mailing list for bug reports and other inquiries regarding MorphOS. To sign up, please send an email to the following address: [email protected]
You will receive a confirmation email, and after replying to that, you can use [email protected] to send an email to the mailing list. There is also an informational mailing list where news about MorphOS updates are announced. Signing up works the same as for the MorphOS mailing list, except the address to sign up is [email protected] Only MorphOS team members can post to this mailing list.
A few parts of MorphOS were originally derived from work made for the open source AROS project.
More specifically, it runs on Powerbook G4, iBook G4, Mac mini G4, eMac, Power Mac G5, and Power Mac G4 as well as on computers and systems based on EFIKA, Pegasos I, Pegasos II, Sam460 and X5000 mainboards. There exist also development ports to the NXP MobileGT platform.
For a detailed list of the supported hardware, please visit this page.
The unregistered version of MorphOS includes the full functionality, but slows down operation after a 30 minutes period until you choose to reboot your computer.
For urgent matters, please visit #morphos on the FreeNode network (irc.freenode.org) where you can talk to other MorphOS users and various core developers.
MorphOS 3.10 first introduced proper time zone support. For this to work properly you need to specify your time zone and correct the system time in Time preferences. If you have already configured your internet connectivity you can also:
- Select the correct time zone
- Click 'Set date and time using the Internet'
- Click Save
We strongly urge you to not buy or otherwise finance any hardware for the purpose of running MorphOS until you have read an announcement on this website that clearly states MorphOS will support it.
Now add your boot arguments after the ramdebug keyword and save the file. You need to call HFSSetMacBoot Boot:bootinfo.txt EACH TIME you
modify the bootinfo.txt or your Mac computer will not be able to boot MorphOS!
Using and understanding boot options requires a little knowledge about DOS pattern management. If you are just searching for examples, skip the following part and take a look at the examples listed below.
The character case is not important. Just the boot image file name must be exact.
- no / behind argument means that a textual argument is expected.
- = means you can use one of these key word as argument. e.g. Fuh=Bar=Chicken/S allows to enable the same switch by using fuh, bar or chicken.
- /S means no arguments needed. Just the keyword will enable option.
- /N means a numeric argument is required.
To get all available arguments simply use
> boot boot.img '
(' is important here, as it makes it fail and shows a template.)
The boot menu can be opened by using F1 or pressing your left mouse button during the boot up, but this may be tricky due to issues of wireless devices or USB ones in general. This switch forces the boot menu to be opened without any additional key or button press.
If there is more than one partition marked with the boot flag, you can use this option to specify the name of the boot drive / partition from which you would like MorphOS to be loaded, e.g. bd dh0:
By default, debug output is routed though the serial port. This may slow down debugging or cause massive system slowdowns whenever applications with enabled debug
or bugs are running. This option allows to redirect debug into a predefined memory section.
Normally the size of ram debug memory is 4MB on the Pegasos and 256kB on the Efika. This may not be enough for several debug purposes, so this option allows to increase the amount of memory to the desired size. Using the size of 0 disables ramdebug and enables default (serial) debug.
This option allows to move the used memory area which is usually at the beginning of the memory block. As Open Firmware overwrites the first kB of the memory it may be useful to move the ram debug cache beyond that area.
Please note that boot.img and ide:0 need to be adjusted depending on your hardware and partition layout.
Optimal arguments for using MorphOS on Efika & Pegasos:
> boot ide:0 boot.img rd rds 0
Optimal arguments for running MorphOS with basic debug functionality being enabled.
> boot ide:0 boot.img ed invzeropage
This will boot MorphOS from a device/partition named SDH2.
> boot ide:0 boot.img BootDevice SDH2
> setenv boot-file boot.img ramdebug
There are alias names available if you did not remove them, so this /pci/ stuff can be replaced by a simple ide:0.
> setenv boot-device /pci/ide/[email protected]
Now, we set the auto boot delay. By default the Open Firmware counts down from 5 before starting auto boot. This would be a 5 second delay. It is possible to set up lower or higher numbers. It is recommended to refrain from using values below 1000, because it may be very hard to re-enter the Open Firmware command line interface again otherwise. The optimal values are between 3000 and 10000. (4000 equals 4 seconds, 1000 equals 1 second, and so on.)
> setenv auto-boot-timeout 3000
You may skip this for now. Using 'boot' command without any argument will use the configuration specified above. If its working fine you finally can enable automatic booting using those set-ups.
> setenv auto-boot? true
There is a GRUB port done by Marcin Kurek available at http://tbs-software.com/morgoth/projects.html
On a Mac system, always use the MAC partition layout.
it is located in the first 32MB of ram (i.e. it will be overwritten by the firmware)
> boot boot.img ramdebug rdo=33555456
If you type the above, this will result in the Ramdebug log surviving a reset on Pegasos computers by moving its buffer outside the first 32MB of RAM. Of course, this implies that sufficient memory is available to do so.
Select System.. from the Ambient's Settings menu to open the Network settings. You should see the wireless network interface wl0 at the top of the list. Once you enable the interface, a list of available Access Points should appear shortly. In order to connect to a selected network, double click the item and type in the password if requested. Wait for the led next to the network name to turn green and press the Save button.
You should be online now!
Please note that while the passwords are saved, you will have to manually switch to a new network when moving around. This will be changed at a later date. In case you are connected to a wireless network (signalled by the green led in the Network settings), but the connection does not seem to work, it is likely that the DHCP service has failed. Try rebooting the machine - you will be reconnected automatically when booting MorphOS.
What To Do If Mac Keeps Restarting
MorphOS handles most of the hardware found in PowerBooks, namely:
What Do You Do If Your Mac Keeps Restarting
- CPU throttling (DFS2, currently only for 1.67GHz models)
- Temperature and fan control
- Screen backlight control
- Keyboard backlight
- Battery control
- Lid sensor
- Sound output with hardware volume control
- And all the obvious things like USB, IDE, Ethernet controllers
Mac Randomly Restarts
What Does It Mean When Your Mac Keeps Restarting
button with your third hand. Keep all keys and the power button pressed until you hear the Mac mini reboot again.
If this does not help, you should probably send the machine to your local service center.
Reboot CD again and use the HDConfig tool in tools drawer to set the boot flags for that partition.
Type the following line to boot your Pegasos 2 via CD only.
> boot cd boot.img
On a Pegasos 1, please type
> boot cd bootpeg1.img
After making a proper installation, you can now boot any MorphOS 3.x CD without the need to type this again.