PLEASE HELP: I deleted all my Kernels, and I get a "panic (cpu 0 caller...) during startup.
Hello,
I use the forum all the time to find solutions to problems, and my Mac was slow so I went to this discussion: "kernel_task high memory usage" and I thought I had to delete my kernel extensions based on what several users said worked for them. In retrospect it says to delete them for printers, but I accidentally and ignorantly deleted them all.
I restarted my computer and what I get is a quick start to the gray screen and the the apple logo. On the gray screen I get a bunch of white text in black backgrounds. It says:
panic(cpu 0 caller 0xffffff800a2c3221): "Unable to find driver for this platform: \"ACPI".\n"@SourceCache/xnu/xnu-2422.110.17/iokit/Kernel/IOPlatformExpert.cpp:1 533
Debugger called <panic>
Backtrace (CPU 0), Frame : Return Address
and then it has numbers and letters and a : and more numbers and letters
it says aslo "can't perform kext scan: no kext summary
BDS process name corresponding to current thread: unknown
Mac OS version:
Not yet set
Kernel version:"
and it has all the version and other information. I don't know if you need it to solve the problem. I can type it up if it's necessary.
I tried holding the shift button to start in safe mode but that doesn't help. How can I backup my data to an external hard drive? Some important data is not currently backed up and I don't have a time machine. I just made several copies of data that's important. How can I make sure I don't lose anything in the process of fixing my computer?
The computer is MacBook Pro And I think I had Mavericks installed on it.
what do I need to do to backup my data and to fix the computer? Do I need to reinstall the OS? If so, how can I do that? I didn't have an original cd or DVD that came with the computer. And I upgraded my os through a download.
I Know I did a stupid thing, and it would mean the world if someone can help me resolve this. Thank you so so much.
VitoK1,
I’m glad to learn that you’re able to use your MacBook Pro again. To back up your files (as a bit of insurance against future disk problems, so that a disk problem won’t wipe out all of your personal files), you can use the Time Machine app, which is different from the Time Capsule hardware. The Time Machine app can be used with an external disk of your choice; it’s not limited to being used with Time Capsules. As backup software goes, it’s pretty painless. This Apple page has information on how to set up an external disk to be a Time Machine backup destination, and on what needs to be done to set up regular backups of your Mac to that external disk.
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