aeroz51

I removed the -v from the Nvram file. Left the -f booted fine afterwards. I will finish tomorrow. Thanks all for your help. Greatly appreciated.

I pressed spacebar again, -v -f was back in there. Removed and only used -f booted right up, quick. How do I permanently remove -v?

I took Herve's advice... pressed spacebar.  I did see the flags -v -f   I removed them, system booted into Apple logo with wheel spinning... stayed there for a very long time. Never went to login screen. 

This is my org.chameleon.boot.plst  Looks like GraphicsEnabler is set to YES

<?xml version="1.0" encoding="UTF-8"?>

Here is a dumb question... how do I get to kextwizard??

It takes me to the boot loader, I press enter on my HDD to boot into Mavericks - not using -v -f   It goes directly into the scrolling pages of text.  Just noticed that sound is not working either.  Thanks for the link to wireless cards. 

I am thinking of just purchasing a usb wifi receiver - any specific model?

I was able to install Mavericks using this guide: https://osxlatitude.com/index.php?/topic/6472-dell-latitude-e7240e7440-with-mavericks-1095-updated/ 

Installed fine. Boots from HDD as well - only thing is that it scrolls thru about a dozen scripts before prompting login screen.  Also, my wifi does not work - I have an internal Intel wifi card. 

I am using the Bootpack in Post #4 https://osxlatitude.com/index.php?/topic/7478-dell-latitude-yosemite-install-guide/ Using the patched kernel

  Latitude_E7x40.zip   6.31MB   246 downloads

Reset BIOS, set HDD to AHCI - still won't load installer.

Tried it with GraphicsEnabler=no -x maximum=4096   same thing. 

Tried -v -f -no-zp  (stopped at System Uptime in nanoseconds: )

Tried it with graphicsenabler=no -x maxmem=4096  Getting the same thing...  

I used Haswell 10.10.2 on usb installer.  Now I can't get to the installer.  I was typing graphicsenabler=no -x maxmem=4096 to load it, now this won't work. This is all I get:  (This was happening before... using graphicsenabler=no -x maxmem=4096 would start installer though)

I apologize... I did type in /Volumes/"Macintosh SSD"/System/Library/Kernels/   Library had a small l in previous post... this returned no errors, brought me back to the -bash command.  After I rebooted, still went into the boot loop. 

Thanks for the info Jake Lo...  I typed in the copy path that you posted in your previous post, cp /Volumes/"Install OS X Yosemite"/System/Library/Kernels/kernel /Volumes/"Macintosh SSD"/System/library/Kernels

No errors, just brought me back to the -bash prompt.  I believe that it copied it over.  I rebooted - selected to boot from Macintosh SSD to finish install, Apple log flashed and went into boot loop. 

I just tried typing in cd /Volumes/Install_OS_X_Yosemite/System/Library/Kernels

Same error... no such file or directory.   I just booted from the USB!  

 Typing in cp /Volumes/Install_OS_X_Yosemite/System/Library/Kernels/kernel /Volumes/Macintosh_SSD/System/library/Kernels

Keep getting an error...cp /Volumes/Install_OS_X_Yosemite/System/Library/Kernels/kernel : No such file or directory

I am not very familiar on how to browse directories on OSX thru terminal so I can try to view the contents of the hard drive and usb. Any Suggestions?

I redone the installer, able to install.  After installation, reboots.  I select Macintosh SSD to complete installation - goes back into boot loop.  Any suggestions?

Actually, yes I did.  Just had to unhide files. 

Yes, I thought I did... checked the USB, don't see base system.dmg and base system.chunklist on the root of the USB.  Going to copy and try again...

Should I wipe out the USB and start over?  I used this installer guide: https://osxlatitude.com/index.php?/topic/7478-dell-latitude-yosemite-install-guide/ 

Tried this one first but had trouble with the DSDT.aml edit,  mine showed 3 errors - steps outlined two - couldn't get the errors to go away so I could save the file. https://osxlatitude.com/index.php?/topic/6461-guide-e7440-with-clover/ 

which one do you suggest?

Thank you for the help.  I was able to finally get to the installer.  Starts to install Yosemite and then it errors "an error occurred while extracting files from the package essentials.pkg"  I have ran Disk Utility and Partitioned drive, rebooted and attempted 3 times - same error.  I have a Dell Latitude e7440 128GB SSD / 8GB memory / Intel integrated video card.  I had to start the installer by using graphicsenabler=no -x maxmem=4096  

Any suggestions on why the error on this package?

I followed the installation instructions posted here, https://osxlatitude.com/index.php?/topic/6472-dell-latitude-e7240e7440-with-mavericks-1095-updated/

Installed Bootloader for e7440.  Downloaded Yosemite, boots into Chameleon and gives me the option to install - reboots, displays "invalid Partition table".  I press enter and keeps going into the boot loop.  Anyone have any suggestions??