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Dell inspiron 5558 (i5-5250U + HD 6000): seeking help to install Sierra


naresh8

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Still not seeing AppleHDA_ALC255.kext showing in your output...did you copy it to /Library/Extensions?

 

System extension cannot be used

The system extension “/Library/Extensions/AppleHDA_ALC255.kext” was installed improperly and cannot be used. Please try reinstalling it, or contact the product’s vendor for an update.

 

this error occurred...

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yes, that's noted on the Clover guide...

 

7. Copy kexts from /EFI/Clover/Kexts/Other/LE to /Library/Extensions of Macintosh SSD

    Note: Ignore warning/error messages and click OK, then run commands below.

 

8. Repair permission and rebuild cache. Run command from terminal

 

      sudo chmod -Rf 755 /L*/E*
      sudo chown -Rf 0:0 /L*/E*
      sudo touch -f /L*/E*
      sudo chmod -Rf 755 /S*/L*/E*
      sudo chown -Rf 0:0 /S*/L*/E*
      sudo touch -f /S*/L*/E*
      sudo kextcache -Boot -U /
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Last login: Fri Sep  8 13:39:58 on console

GoFitXs-MacBook-Pro:~ gofitx$ sudo chmod -Rf 755 /L*/E*

Password:

GoFitXs-MacBook-Pro:~ gofitx$ sudo chown -Rf 0:0 /L*/E*

GoFitXs-MacBook-Pro:~ gofitx$ sudo touch -f /L*/E*

GoFitXs-MacBook-Pro:~ gofitx$ sudo chmod -Rf 755 /S*/L*/E*

GoFitXs-MacBook-Pro:~ gofitx$ sudo chown -Rf 0:0 /S*/L*/E*

GoFitXs-MacBook-Pro:~ gofitx$ sudo touch -f /S*/L*/E*

GoFitXs-MacBook-Pro:~ gofitx$ sudo kextcache -Boot -U /

rebuilding //System/Library/PrelinkedKernels/prelinkedkernel

kext-dev-mode allowing invalid signature -67062 0xFFFFFFFFFFFEFA0A for kext CodecCommander.kext

KernelCache ID: F7E09781091BC88FA44D25591BFA0057

kextcache updated critical boot files, requesting launchd reboot

 

GoFitXs-MacBook-Pro:~ gofitx$ 

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