Mac OS X on x86 Hardware 2008–2024 Technical Archive
InfiniteMac OSx86 › Leopard 10.5 › unable to boot after install of some kexts
4,774 reads · 2009-03-07 – 2009-03-10

unable to boot after install of some kexts

can some help me i installed some kexts now i cant boot when i boot with -v i get to errors in yellow that say unable to find drivers com.apple.driver.appleacpiplatform and com,psystar.driver.openhaltrestart.

Primary Author
@bandit250 Published 2009-03-07
Collection
Leopard 10.5
Archival Footprint
4,774 historical reads · 4 curated field notes (from 6 dispatches) · 2009-03-07 – 2009-03-10
Credited Voices (4)
@bandit250 (2)@lanceomni (2)@Ali C.@erick2red

can some help me i installed some kexts now i cant boot when i boot with -v i get to errors in yellow that say unable to find drivers com.apple.driver.appleacpiplatform and com,psystar.driver.openhaltrestart.

Author Updates & Technical Revisions

Follow-up dispatches by @bandit250

Author Update #1 @bandit250 2009-03-08

i tryed -v-x-F still nothing just asks me to reboot do i have to re-install it?

Synthesized Community Field Notes

4 technical responses curated from 6 original dispatches

Field Note #1 @Ali C. 2009-03-08

Try -v -x -F. If this lets you in, restore the ACPI driver as my guess is that's where your trouble lies.

Field Note #2 @lanceomni 2009-03-08

It is also a good idea to backup both your Extensions folder and your kernel once you get a working system. You could then boot into Single User Mode (-s) and manually replace those kexts.

To backup your Extensions folder:
1. First we will make a directory called "backup" in our root directory to store them. Open Terminal and type:

mkdir /backup

2. Copy your kexts to the new "backup" folder.

cp -r /System/Library/Extensions /backup

To backup your kernel:
1. Open Terminal and type the following:

cp -r /mach_kernel /mach_kernel.backup

Now if your kernel gets replaced you can boot using the boot-option mach_kernel.backup and it will load your backup kernel.

Field Note #3 @erick2red 2009-03-09
i tryed -v-x-F still nothing just asks me to reboot do i have to re-install it?

try "-s" and try to restore your old kexts

Field Note #4 @lanceomni 2009-03-10 ↳ Re: @bandit250
@bandit250i tryed -v-x-F still nothing just asks me to reboot do i have to re-install it?

Do you remember the exact kexts which you installed? We may be able to help you avoid a complete reinstall but will need to know a bit more.

Sources & Contributor Provenance (4 credited usernames · Thread #2328)
UsernameDossier ContributionDispatchesActive Window
@bandit250Primary Author22009-03-07 → 2009-03-08
@lanceomniContributor22009-03-08 → 2009-03-10
@Ali C.Contributor12009-03-08
@erick2redContributor12009-03-09