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Guide to Installing Mountain Lion on HP Probook

RehabMan

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Joined
May 2, 2012
Messages
181,112
Motherboard
Intel DH67BL
CPU
i7-2600K
Graphics
HD 3000
Mac
  1. MacBook Air
Mobile Phone
  1. iOS
Please Note

If you have an issue with this guide, please post a reply in this thread and I will try to address it with an edit (and then delete your post).

If you have an issue with your laptop after following this guide, please DO NOT reply to this thread. I do not want this thread to be one of those 25-page threads with a bunch of random questions in it. So, open a new thread for your issue, or resolve your issue by reading the FAQ or doing a search.

Installation

Installing Mountain Lion on the HP Probook 4x30s/4x40s series laptops is actually pretty easy (compared to other hacks you may attempt). This is mostly thanks to the fact that the hardware is very generic and well supported by current versions of Mac OS and to all who have contributed to the process including tonymac, MacMan, blueking, tegezee, Mieze, Zenith432, kozlek, bcc9, BigDonkey, philip_petev, Mac4Mat, RehabMan and others who spend many hours messing with the technical details to make things run smoothly.

This version of the guide is updated to use ProBook Installer v6.1 (beta), which has support for 10.8.3 and the ProBook 4x40s series laptops.

Here is what you will need:
- A legal purchased "Install OS X Mountain Lion.app" from the Mac App Store
- philip_petev's HP ProBook Installer from here: http://www.tonymacx86.com/hp-probook/87816-hp-probook-installer-6-1-4x30s-4x40s-support.html
- The latest Unibeast from here: http://www.tonymacx86.com/downloads.php?do=cat&id=3
- Access to an OS X computer, where the "Install Mac OS X Mountain Lion.app" is. Whether this is Lion or Snow Leopard, or Leopard, hackintosh or Mac, it doesn't matter.
- A flash drive that can be formatted, anything 8 GB or bigger is fine.
- For computers with high resolution displays (1600x900 or greater), a "mini SSDT" from here: https://github.com/RehabMan/HP-ProBook-4x30s-DSDT-Patch/raw/master/Mini-SSDT-DualLink.aml
- For ProBook Installer v6.1.1: If you're starting with a version of Mountain Lion that is not the latest, gather the "combo" update from here: http://support.apple.com/kb/DL1659, and place it on a USB stick or other media.

1. Go to the Mac where "Install Mac OS X Mountain Lion.app" downloaded from the Mac App Store is. Your "Install Mac OS X Mountain Lion.app" must be present in the Applications folder before running Unibeast (prior versions allowed you to mount InstallESD.dmg, but not the latest version). Make sure you download the Unibeast intended for Mountain Lion. Unibeast requires your language is set to English. No support for other language settings is provided.

2. Insert your flash drive, and open disk utility. Format it as Mac OS X Extended (Journaled) with a MBR partition map. Name it Installer. Note: If your flash drive is larger than 8GB, create a partition that is 8GB instead of the full size of the drive.

3. Exit Disk Utility, and run Unibeast, installing to that flash drive. When installing, be sure to select "Laptop Support." Then select your flash drive to install it to. Let it finish to create your Unibeast USB flash drive.

4. Copy the latest HP Probook Installer to the flash drive. You will need it later.

4a. If you have upgraded your screen from the standard 1366x768 screen in the 45x0s to either 1920x1080 or to 1600x900, or you have a Probook 47x0s with a 1920x1080 or 1600x900 screen, you must copy a "mini SSDT" to the Unibeast flash drive as /Extra/ssdt.aml. So, copy the Mini-SSDT-DualLink.aml from your Downloads to the clipboard, navigate to the Unibeast drive's /Extra folder, and paste it. Then rename it to ssdt.aml. You may have to show hidden files or navigate to /Volumes/Installer/Extra directly via Finder's Go -> Go to Folder.. option. Having this /Extra/ssdt.aml on your Unibeast drive will enable you to have a working screen during installation.

5. Now we are moving on to the laptop. If you have discrete graphics card (switchable graphics) other than the Intel HD 3000 or HD 4000, disable it in BIOS now. It currently does not work in OS X. If your laptop has an i5 or i7 processor, be sure to disable "Virtualization Technology for Directed I/O" in BIOS, if available. If you can't boot for some reason, set all BIOS settings to default, and then try again, again making sure any other graphics cards are disabled, and "Virtualization Technology for Directed I/O" is disabled. For 4x40s series, be sure to turn off "Wake on LAN/Wake on USB." Also for 4x40s series, be sure legacy boot is enabled. There are 2 places to look for Legacy: Enable legacy boot in "Device Configurations" AND in "Boot Options" set "Legacy" or "UEFI Hybrid (With CSM)". Finally, be sure that "Fast Boot" is disabled as it will keep the bootloader from seeing a second hard drive connected to the DVD SATA port and can cause issues for internal USB devices (camera, bluetooth, etc.).

6. Insert the flash drive in one of the USB ports on the right (you want a USB2 port, not USB3). The "right front" USB2 port seems to work best on most ProBooks.

7. Upon boot-up, hit Esc, and F9. Then, select the USB hard drive. Select the Flash Drive, called Installer, and hit enter. Let it load. Note: the 4x40s series laptop may not be able to boot with Unibeast defaults. If you run into trouble booting your 4x40s, try typing the boot flags 'PCIRootUID=0 GraphicsEnabler=No -x' before hitting enter.

8. Now you should be at the Installer screen. Hit continue to select your language.

9. Along the top, click Utilities. Then select Disk Utility.

10. Select your hard drive, and format it in however many partitions you want, with a GUID partition map. At least one "Mac OS Extended (Journaled)" (HFS+J) is required, as that is where you'll install OS X.

11. Hit Alt+Q to return to the installer after you have finished. Finish the install process like normal, selecting the partition you just made.

12. After it restarts, you will need to once again hit Esc then F9. Then select the USB hard drive again. This time, select the partition you just installed Mountain Lion on, and hit enter (if you have a 4x40s and you needed to use boot flags in step 7, use the same boot flags here). Make sure you leave the flash drive plugged in.

12a. If you get an indication for "no keyboard," use a USB keyboard to get past the message. Plug it in on the other USB port on the right, and after the stupid prompt goes away, you can unplug it.

13. Finish the setup process like normal. After you get to the desktop, open the flash drive (it's called Installer in Finder) and copy the HP Probook installer to your desktop. If your need the "combo update" to upgrade your system to the latest version, copy it as well.

13a. In order to run the installer, you must allow applications downloaded from the Internet to be run (this is a new default in Mountain Lion). Go into System Preferences, then Security & Privacy. Click the lock (lower left) to make changes. Then select "Anywhere" from the "Allow applications downloaded from:" section. You can then close System Preferences.

13b. For ProBook Installer v6.1.1 and greater: If you installed a version of Mountain Lion other than the latest (eg. latest is 10.8.4, but you installed 10.8.2), you must update to the latest using the 'combo update' downloaded from apple.com. This is because the ProBook Installer v6.1.1 only supports the latest of each major OS X release. Update using the combo update PKG and DO NOT RESTART.

14. Run the installer, and select:

- From "OS X support kexts," select only the version that matches your laptop (4x30s or 4x40s) *and* only the version of OS X you just installed.
- From "DSDT generator/patcher" select your "ProBook model," a "Fan behavior" that matches your preferences, and your "Display type." If you have an Atheros 9285 WiFi mini PCIe card installed, choose the 9285 patch under "Optional patches." Note: you must select one option from each of the first three groups to generate a patched DSDT. In addition, you must have no DSDT present in /Extra/dsdt.aml at the time you run this option. If you wish to regenerate a DSDT later, you must remove /Extra/dsdt.aml, reboot, and then run the ProBook Installer using your desired DSDT options.
- Check the option for "SSDT" generator.
- From "System definitions," select ONE system definition which matches closest your laptop.
- Chameleon: This allows you to boot from your main HDD/SSD
- From "Optional hardware-specific fixes,"
- "AHCI patch (10.8.x only),". If you are installing 10.8.x where 'x' is 0, 1, or 2, you will probably need this. If you're installing 10.8.3 you probably won't need it. There is no harm in selecting it from the beginning, but not everyone needs it, so you can skip it and deal with it later if you want, or if you prefer the easy way, just select it now.
- "AHCI 3rd party kext," You can apply this option later if it turns out your DVD drive is not recognized by the system. It is not needed on every laptop.
- "Graphic Glitch Fix," You probably won't need this, because you will have a custom patched DSDT, but you can try without and see if you experience random blocks/lines on the display. This option can help sometimes.
- "EDID generator" Recommended.
- From "Misc OS X fixes"
- "Color profiles," Recommended.
- "Sleep fix," If you have SSD, "Sleep image fix" is recommended. This disables OS X version of "hybrid sleep" where upon entering sleep, a "hibernation image" is written to the boot drive. For SSD, you don't really want to write this file every time your laptop goes to sleep.
- "blinkscreen" This option works around an issue where 1) all the screen brightness levels are not available before the first display sleep, and 2) the screen brightness is not restored on a fresh boot (still... currently only fixed if you're using the Chameleon boot loader). This option will very quickly "blink" the screen when you login, fixing the brightness issue.
- "Screen brightness fix" Select an option here if you would like your screen brightness changed automatically each time the laptop starts.
- "Extra tools" All optional. Select the ones you want.

After making, your selections, click 'Continue' and allow the ProBook Installer to work.

15. Shutdown the computer, unplug the USB flash drive and attempt to boot from the hard drive. If it does not work (you don't see the Chameleon boot loader), it is very likely you have a 4k/AF (advanced format) HDD. If that is the case, see this link for more information (start at solution 1 step 4, or solution 2 step 2): http://www.tonymacx86.com/25-boot0-error-official-guide.html. If you see the Chameleon boot loader, but booting ML times out after a long time (and you didn't install the AHCI patch in step 14), you will need to boot "Ignore Caches" (either type "-f" at the Chameleon boot loader screen, or use down-arrow to choose it from the menu). After booting with ignore caches, you can run the installer again to select and install the AHCI patch from "Optional hardware-specific fixes"

16. At this point everything should be working (WiFi, Audio, keyboard, trackpad, ethernet, etc.). Note for WiFi: You must have Atheros, or for 4x40s a compatible card (Atheros 9485 is not compatible), for it to work. If you don't, you should consider replacing the mini-PCI card that provides WiFi.

Updates

10.8.0 to 10.8.1

1. Download and install the update from here: http://support.apple.com/kb/DL1571. DO NOT RESTART.

2. Run philip_petev's Probook Installer, selecting only the Mac OS X 10.8.1 option, and AHCI patch if you need it.

3. Click continue to install your ProBook Installer choices, allow it to complete, then restart the computer.


10.8.1 to 10.8.2

1. Download and install the update from here: http://support.apple.com/kb/DL1580. DO NOT RESTART.

2. Run philip_petev's Probook Installer, selecting only the Mac OS X 10.8.2 option, and the AHCI patch, if you need it.

3. Click continue to install your ProBook Installer choices, allow it to complete, then restart the computer.


10.8.0 to 10.8.2

1. Download and install the "combo" update from here: http://support.apple.com/kb/DL1581. DO NOT RESTART.

2. Run philip_petev's Probook Installer, selecting only the Mac OS X 10.8.2 option, and the AHCI patch, if you need it.

3. Click continue to install your ProBook Installer choices, allow it to complete, then restart the computer.


10.8.2 Supplemental Update

1. Apply it through Software Update or from here: http://support.apple.com/kb/DL1600. This one is safe.


10.8.x to 10.8.3

1. Download and install the "combo" update from here: http://support.apple.com/kb/DL1640. DO NOT RESTART.

2. Run philip_petev's Probook Installer, selecting only the Mac OS X 10.8.3 option, and the AHCI patch, if you need it.

3. Click continue to install your ProBook Installer choices, allow it to complete, then restart the computer.


10.8.x to 10.8.4

1. Download and install the "combo" update from here: http://support.apple.com/kb/DL1659. DO NOT RESTART.

2. Run philip_petev's Probook Installer, selecting only the Mac OS X 10.8.4 option, and the AHCI patch, if you need it.

3. Click continue to install your ProBook Installer choices, allow it to complete, then restart the computer.


10.8.x to 10.8.5

1. Download and install the "combo" update from here: http://support.apple.com/kb/DL1676. DO NOT RESTART.

2. Run philip_petev's Probook Installer (version 6.1.5 or greater), selecting either "4x30s support kexts" or "4x40s support kexts" from "OS X support kexts" depending on your hardware, and the AHCI patch, if you need it. Also, if you use the Atheros AR9285 for WiFi, select only the "Atheros 9285 patch" from "DSDT generator/patcher -> Optional patches."

3. Click continue to install your ProBook Installer choices, allow it to complete, then restart the computer.

4. If you have an SSD (Solid State Drive) and wish to enable TRIM, run Trim Enabler to turn on TRIM (it patches IOAHCIBlockStorage). Repair permissions & rebuild cache, then reboot.


10.8.5 Supplemental Update v1.0

1. Allow Software Update (App Store) to apply the update, or get the update from here: http://support.apple.com/kb/DL1686/

2. After rebooting (if using App Store based Software Update) or before rebooting (if using the download), run phlip_petev's ProBook Installer (version 6.1.5 or grater), selecting either "4x30s support kexts" or "4x40s support kexts" from "OS X support kexts" depending on your hardware.

3. Click continue to install your ProBook Installer choices, allow it to complete, then restart the computer.


Other Updates

When new updates come out it is best to wait until someone here has analysed what is in the update and if any additional patches or rollbacks are required. And with all updates it is wise to create a backup before performing the update, because you never know what is going to happen.

If you want to understand more, get Pacifist so you can look inside PKG installers...


BIOS updates/hardware upgrades

If you ever make a hardware change or update the BIOS, you should re-patch your DSDT. See this thread: DSDT patch: http://www.tonymacx86.com/hp-probook/70490-hp-probook-4x30s-4330-4430-4530-4730-patches-updated.html and this thread for a guide using MacIASL: http://www.tonymacx86.com/hp-probook/83573-patching-your-dsdt-probook-4x30s-using-maciasl.html

You can also re-patch your DSDT using the ProBook Installer. Follow these instructions

1. Remove /Extra/dsdt.aml. If you have a high-resolution screen and 6-series chipset, install Mini-SSDT-DualLink.aml to /Extra/ssdt-1.aml. Then reboot. If you have a high-resolution screen and 7-series chipset, be sure to use boot flags "IGPEnabler=N GraphicsEnabler=N -x". After reboot, you are running without a DSDT (no audio, WiFi, battery, etc)
2. Run ProBook Installer and select only the DSDT options you did before in step 14.
3. Allow the ProBook Installer to create your DSDT, then reboot.


Optional Optimizations:

If you ever make a hardware change or update the BIOS, you should re-patch your DSDT. See this thread: DSDT patch: http://www.tonymacx86.com/hp-probook/70490-hp-probook-4x30s-4330-4430-4530-4730-patches-updated.html and this thread for a guide using MacIASL: http://www.tonymacx86.com/hp-probook/83573-patching-your-dsdt-probook-4x30s-using-maciasl.html

A number of the kexts that are in the installer are under active development. If you want, you can update to these kexts as they are updated.

- Battery Manager: http://www.tonymacx86.com/hp-probook/69472-battery-manager-fix-boot-without-batteries.html
- Keyboard/Trackpad: http://www.tonymacx86.com/hp-probook/75649-new-voodoops2controller-keyboard-trackpad.html
- Fan Control: http://www.tonymacx86.com/hp-probook/72043-new-fan-control-dsdt-silent-fan-higher-temps.html


FAQ: Please see this post for common questions/issues: http://www.tonymacx86.com/hp-probook/77058-faq-mountain-lion-hp-probook.html


*** This guide adapted by RehabMan from blueking's original guide for Lion.
 
Sorry sir, can you give me source of ML.app, I have no Apple account so I can not buy it from mac app store. I have search many time about it but I can not meet the true source, so it doesn't work correctly. Plz help me!

The 'true source' is from the Apple store. No other methods are supported or tolerated. You should read the rules.
 
Thank you for this guide. Step by step instructions, easy to read and figure out. I have ML 10.8.2 running on my 4530s perfectly. Now just installing windows 7 for dual booting.

This isnt my first time installing OSX on my Probook. Followed the old Lion install guide on the old forum and I had lion working pretty well for over a year until I decided to do ML. Also rocking ML on my Asrock Z77 Extreme4 desktop, although I've had less problems on the Probook than on the ASRock thus far.

Anyway if you follow instructions to the letter you should be good to go.
 
..
" still waiting for root device "
...

Make sure you are putting your Unibeast stick in a USB2 port. And if that doesn't work, when you get the "still waiting..." remove the Unibeast stick and then re-insert it.
 
I followed the guide to "building the USB boot" with unibeast and such, When I boot its not seeing the USB thumb drive as a device. Does this mean I simply messed up or is this a issue I managed to miss on the 4530s.

Make sure you have it in a USB2 port. Make sure you partitioned it as MBR. Use simple/cheap/small (8GB) USB flash drives, not large fancy USB3 types. Make sure you have USB boot enabled in BIOS. And if you really have no plain USB flash drives (eg. Sandisk 8GB from Costco -- noticed yesterday Costco now only sells 16GB), then try partitioning a 16GB into 2 8GB partitions instead of just one 16.

Hope that helps...


-----

Side note: Just yesterday I purchased a 32GB flash drive for the low, low price of $12.99 (I couldn't resist). It was in a bargain bin at the local OfficeMax. I was able to partition it into 4-8GB partitions and now have *one* stick that I can use to install ML10.8.2, ML10.8.3, Lion10.7.5, or SL10.6.3(w/ upgrade stuff to 10.6.8). This has freed up 4-8GB sticks for other purposes. The reason I mention this is as proof that you can use larger USBs, but that they probably need to have smaller partitions...
 
Thanks to all who have contributed for an easy and trouble free installation!!!
 
Updated to use ProBook Installer v6.1 (currently beta 9) and with extra instructions for ProBook 4x40s series laptops...
 
I followed the guid through a complete install on an external disk and... well, it's a great work! Big Thanks!

During install I tried to find points that may cause misunderstandings (or are of merely cosmetic nature). Some are:

From the second paragraph after the "installation" headline, the 4x40s could be merged into the first para. The credits could go into their own paragraph.

"Here is what you will need"
Possibly a USB keyboard (step 12a)
The "Install Mac OS X Mountain Lion.app" may have a different name following the language of the downloading system.

Step 1
Non-English systems only: UniBeast does not accept the install file under any other name than "Install Mac OS X Mountain Lion.app" (that's why its creators insist on an English system). After manual renaming it automatically reverts to the localized name. To work around this you want to make an alias of the install file and rename the alias to "Install Mac OS X Mountain Lion" (without the ".app"). If the alias is in the /Applications folder, UniBeast will resolve it and accept the install file despite the different name. If this trick doesn't work, change the system language: System Preferences > Language & Text: in the language list drag English to the top; close System Preferences, log out and back in again. After running UniBeast you can set the language back to your preference.

Step 2
Just for curiosity: why no partition >8GB for the installer?

Step 4a (and for us tinkerers)
An option for permanent visibility of the install stick's Extra: Open Terminal, enter "chflags -R /Volumes/<InstallStickName>/Extra", hit Return. Maybe "sudo " is necessary?

Before step 5
Latest BIOS (currently F.40) is advisable.

Step 5
Hit Esc, then F10 (similar to steps 7 and 12)
BIOS F.40 on 4740s lists only "VTx" (i.e. Intel Virtualization Technology for IA-32 and Intel 64 Processors) no "Virtualization Technology for Directed I/O" (VT-d). Can we ignore that point?
BIOS F.40 on 4740s: There are 2 places to look for Legacy: Enable legacy boot in "Device Configurations" AND in "Boot Options" set "Legacy" or "UEFI Hybrid (With CSM)".

Step 6
4740s (and others?): The (right) front USB 2 port is best, the rear one is multiplexed with a USB-3 and may be problematic.

Step 7
Maybe insert "the boot flags" before " 'PCIRootUID...' " so users know in step 12 what boot flags are.

Step 8
On a 1600x900 display the screen image may appear too broad. This will be OK with the patched DSDT in the installed system.

Step 10
At least one HFS+J partition for the system is necessary.

step 14
insert "and" after the braces.

after step 15
... continue and install. :)

Updates
As the installation guide uses PBI 6.1 now, the update section could follow it.
to 10.8.1: not supported by PBI 6.1, max v6.0
to 10.8.2: use PBI 6.1
to 10.8.3: use PBI 6.1

BIOS updates/hardware upgrades
Copy the mini-SSDT-DualLink.aml to ssdt.aml, not ssdt-1.aml.


...jeez, I think i cought OCD. ;)
dg
 
I followed the guid through a complete install on an external disk and... well, it's a great work! Big Thanks!

Thanks for looking at this! I'm sure you did 10.8.3... do you have the capability to try it with 10.8.2? Just wondering if the ProBook Installer v6.1 10.8.2 option for 4x40s really works or not (there are signs it doesn't).

During install I tried to find points that may cause misunderstandings (or are of merely cosmetic nature). Some are:

From the second paragraph after the "installation" headline, the 4x40s could be merged into the first para. The credits could go into their own paragraph.

Maybe. Style issue.

"Here is what you will need"
Possibly a USB keyboard (step 12a)
The "Install Mac OS X Mountain Lion.app" may have a different name following the language of the downloading system.

I think I'll leave it as it is. I've never seen this with ML (but very common w/ the Lion installer). It was reported by one person that they needed to do this, but who knows, they could have been installing Lion w/ the ML guide. No need to be chasing down a USB keyboard if we are pretty sure one is not needed. If you need it, it is something you can grab later.

Step 1
Non-English systems only: UniBeast does not accept the install file under any other name than "Install Mac OS X Mountain Lion.app" (that's why its creators insist on an English system). After manual renaming it automatically reverts to the localized name. To work around this you want to make an alias of the install file and rename the alias to "Install Mac OS X Mountain Lion" (without the ".app"). If the alias is in the /Applications folder, UniBeast will resolve it and accept the install file despite the different name. If this trick doesn't work, change the system language: System Preferences > Language & Text: in the language list drag English to the top; close System Preferences, log out and back in again. After running UniBeast you can set the language back to your preference.

Unibeast docs state you must set the system to English. I'm not going to make up my own rules here.

Step 2
Just for curiosity: why no partition >8GB for the installer?

People seem to have problems with larger partitions.

Step 4a (and for us tinkerers)
An option for permanent visibility of the install stick's Extra: Open Terminal, enter "chflags -R /Volumes/<InstallStickName>/Extra", hit Return. Maybe "sudo " is necessary?

Trying to stay away from Terminal in the guide. No need to do this to 'install' so I don't think we need it in the guide.

Before step 5
Latest BIOS (currently F.40) is advisable.

It should work with any BIOS, but I'll mention that updating the BIOS is advisable.

Step 5
Hit Esc, then F10 (similar to steps 7 and 12)
BIOS F.40 on 4740s lists only "VTx" (i.e. Intel Virtualization Technology for IA-32 and Intel 64 Processors) no "Virtualization Technology for Directed I/O" (VT-d). Can we ignore that point?
BIOS F.40 on 4740s: There are 2 places to look for Legacy: Enable legacy boot in "Device Configurations" AND in "Boot Options" set "Legacy" or "UEFI Hybrid (With CSM)".

You only have VT-d if your CPU supports it. I will add the specifics for boot options.

Step 6
4740s (and others?): The (right) front USB 2 port is best, the rear one is multiplexed with a USB-3 and may be problematic.

"right front" is probably a good universal recommendation.

Step 7
Maybe insert "the boot flags" before " 'PCIRootUID...' " so users know in step 12 what boot flags are.

Subtle.

Step 8
On a 1600x900 display the screen image may appear too broad. This will be OK with the patched DSDT in the installed system.

I'm not worried about hw not working 100% during install.

Step 10
At least one HFS+J partition for the system is necessary.

Will add.

step 14
insert "and" after the braces.

I think this is already done.

after step 15
... continue and install. :)

I think you meant after step 14.

Updates
As the installation guide uses PBI 6.1 now, the update section could follow it.
to 10.8.1: not supported by PBI 6.1, max v6.0
to 10.8.2: use PBI 6.1
to 10.8.3: use PBI 6.1

I don't see anything wrong with the updates section. Realize the 4x30s does support 10.8.0 and 10.8.1.

BIOS updates/hardware upgrades
Copy the mini-SSDT-DualLink.aml to ssdt.aml, not ssdt-1.aml.

No, ssdt-1.aml is correct. There is already an ssdt.aml at that point (CPU info), so this additional ssdt must be ssdt-1.aml.
 
Yes, I used the install file for 10.8.3. No 10.8.2 left, not even in backups, sorry. Is there a way to download the previous version again from Apple?

And, yes, "continue and install" was after step 14. :)

Re ssdt-1: I always deleted or overwrote the original ssdt.aml, not knowing that more than 1 ssdt is acknowledged. It still worked. Strange.

dg
 
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