NOOB struggling with Toshiba install. Never gets to Installer

[jhkoenig]

First, thanks for this community. An amazing amount of knowledge and interaction.

 

So I am a frustrated installer. All this wonderful code, lots of successful users, yet I am not able to make this work.  Here's my situation. My Toshiba Satelite L675-S7018 has an i3-350M processor, 8GB of memory and Toshiba's 'cinematic' 16x9 display (1600x900 resolution that's great for movies, not so great for writing code) delivered via Intel HD Graphics.

 

I have tried 10.9 and 10.10. I have tried every installation protocol mentioned on this site (and some on sites we don't mention). In every case, the result is the same.  The boot process announces "DSMOS has arrived", then "[iOBluetoothHCIController][start] -- completed" and then the laptop reboots just as the Apple logo screen flashes by. I can only report these verbose results because I videotape the boot process. By naked eye the screen flashes by too quickly to read the last few lines. It seems like a graphics problem but I can't figure out what's wrong.

 

I have deleted the video kexts, tried every combination of boot flags I can think of. I've nearly worn our a USB stick from too many reformats.

 

Any ideas on what else I can try?

 

Thanks for all the hard work!

--John

 

ps: My sig shows 2 laptops. The C50 is the machine I'm using to run a VM to create the USB, the L675 is the target laptop. If that truly can't work, I will dual-boot the C50.

 

Here's a picture just before the apple logo flash and reboot:

 

[Amit_]

I have Toshiba L655 with Intel i3 370M and intergrated graphics and I was having that same problem. Here's how I fixed it. I used the boot flag boot -s to go into single user mode and when it asked for the root, I typed in this and restarted. Hope I helped.

Type: mount -uw /
Type: cd /System/Library/Extensions
Type : mkdir intel_back
Type: mv AppleIntelHD* AppleIntelF* intel_back/
Type: touch ../ExtensionsReboot -v

Also, look for something called Vt-d in the bios and disable that.

[Pimentel]

Hello

 

If you want you can use olarila's image... it's a bootable image and 100% legal...

 

Select it in Donwload forum of olarila:  http://olarila.com/forum/viewforum.php?f=9&sid=407085a86dcd04652b1127fb3b12d685

[jhkoenig]

I have Toshiba L655 with Intel i3 370M and intergrated graphics and I was having that same problem. Here's how I fixed it. I used the boot flag boot -s to go into single user mode and when it asked for the root, I typed in this and restarted. Hope I helped.

Type: mount -uw /

Type: cd /System/Library/Extensions

Type : mkdir intel_back

Type: mv AppleIntelHD* AppleIntelF* intel_back/

Type: touch ../ExtensionsReboot -v

Also, look for something called Vt-d in the bios and disable that.

Thanks, amitkania, that gives me hope! I have not been able to reach single user mode, the system reboots before that point, but just knowing that I'm not tilting at windmills is encouraging. Thanks for your post!

Hello

 

If you want you can use olarila's image... it's a bootable image and 100% legal...

 

Select it in Donwload forum of olarila:  http://olarila.com/forum/viewforum.php?f=9&sid=407085a86dcd04652b1127fb3b12d685

Thanks! I'll give that a try tonight!

[jhkoenig]

Success! I am writing this on my Yosemite-based Toshiba C50-B laptop! No video acceleration yet, but things are good!

 

Secret sauce (boot flags): dart=0 npci=0x3000 cpus=1 USBBusFix=Yes

No wireless and, strangely, no USB so no thumb drives, but off to a great start.

 

Thanks for all the advice!