Trying to get the team on CAD

[artdutra04]

Create a new Boot Camp partition and install Windows natively on the Mac. CAD software needs every ounce of computing power it can get, and running it in virtual machines is robbing you of performance. You'll regret working in a VM anytime your assembly gets over a few dozen parts, which is barely enough to do a drivetrain.

[josh.pruim]

For data storage, I wrote a simple program to write to a Git repository that is executed by Inventor when the file is saved, It uses a mapping (On my computers) to Z:\Incoming and Z:\Outgoing, where Incoming contains the current revision of the repository, and Outgoing contains the most recent local commit.
For the drive itself, It will be configured as if it was an internal drive, that Windows was installed to, but then it was removed. It could then be mapped to a virtual machine (If needed), as some VM apps support physical drives alongside VMDK or VDI files.
and for performance, These Macs are most likely not going to be doing the full-bot design, maybe 5-6 parts per assembly at most. The bigger assemblies will be handled on a better machine, but we only have 2 of those, and they aren't portable.

[AdamHeard]

Originally Posted by artdutra04

Create a new Boot Camp partition and install Windows natively on the Mac. CAD software needs every ounce of computing power it can get, and running it in virtual machines is robbing you of performance. You'll regret working in a VM anytime your assembly gets over a few dozen parts, which is barely enough to do a drivetrain.

Ditto.

If the goal is just to get kids learning CAD a bit, and have them able to make simpler parts and assemblies, this is a solution.

If you want to do serious work, you really don't want to run through a VM.

[Mr. Lim]

I use a MacBook Air 2011 as my everyday computer, including a little bit of CAD work in SolidWorks 2011.

I work in Windows 7 95% of the time and run a tiny Mac OS X partition and a large Boot Camp Windows partition on the internal SSD. The remaining 5% of the time I'm in Ubuntu Linux, which I boot off a fast USB 2.0 Flash drive.

To be honest, I've never booted a full Windows off an external flash, but I have booted Windows PE (Hiren's Boot CD/USB).

Here are my thoughts on what you're trying to do:

0) I wouldn't do a VM approach. I've seen Parallels running Windows + SolidWorks and was not happy with the results at all. Slow, unresponsive, and getting hardware graphics acceleration working properly was a huge pain. Even with acceleration it working, it felt barely usable.

1) Not all USB sticks are created equal. I'm assuming the Macs you are using are USB 2.0 (not 3.0... argh Apple). There is a huge variation in USB 2.0 flash drives in terms of speed. If you bought the cheapest no-name ones that happened to be on sale, chances are you won't be happy with your result. Check out: http://usbflashspeed.com/ for reference. I wouldn't try running an OS off anything less than 20MB/s read and write.

2) Install rEFIt (http://refit.sourceforge.net/) on all the Macs, as it will make OS selection on boot-up much easier. rEFIt seems to be a lot less picky when it comes to booting non-Mac partitions, compared to the standard Mac boot.

3) I don't know how Windows Activation (and drivers) will work. I'm assuming all the Macs you are going to use have identical hardware? Once you activate Windows with a specific USB flash drive, you may need to use that computer/flash drive combination forever. You might not be able to interchange flash drives between computers.

4) Create an exFAT partition on the local hard drive for virtual memory, or disable virtual memory altogether. Using flash for virtual memory is not a great idea since it has a limited number of read/write cycles before it will fail. Enabling ReadyBoost is an interesting option, but I don't know if it will help if you run it on the same USB Flash drive as your OS. If you want to try it, create an extra empty exFAT partition on the flash drive.

5) I would really stay away from Windows Server if possible. Driver support always seem to be an issue with Server versions, and there is a lot of bloat you will never use. Plus it will be tuned to run background tasks with a higher priority, meaning it won't feel as responsive.

What you are trying to do really has a good use case, regardless of whether you are using a Mac or PC.

It'd be nice for teams to be able to have a stash of USB flash drives that they could send home with students and mentors, and have an instant CAD environment all ready to go.

Please keep us updated!

[josh.pruim]

Alright, so, this has changed a LOT from my original idea, but I have been making security and usage choices.

Did NOT use Server 2008, it refused to install Inventor, decided to use Windows 7 Professional, just for the master image, this may change later on.

The software still contains Inventor 2013, with Offline Help. I have added
Antivirus software
Internet-Tunneling Remote Desktop (TeamViewer) for quick admin tasks.

The flash disk I bought was just my test drive, I'm not going to buy a $50-$70 drive for the initial tests and checks. Most likely if this is a viable solution, and everyone would use it, I would then go and buy nicer drives. The writes are slower than the reads, but there are going to be very few writes to the drive in all, because most files will be saved remotely (A little tedious, but doable).

Another idea I have, is a BYOD (bring your own drive) type-thing, where I would install and configure a drive brought to me, alongside the 4 or 5 preinstalled drives.

Because the actual image resides as a Clonezilla image on my external drive, duplication is very easy.

[josh.pruim]

After installing Windows 7 and Inventor, I'm getting constant bluescreens on the portable drive when booted normally. I am unable to diagnose them as the minidump files are not being written anywhere. (I checked the flash disk's C:\, and I also checked C:\ on the internal hard drive of my computer.) Is it possible that the two are causing collisions in drive assignments, and not allowing it to boot? (My setup machine was not a physical machine, I used a virtual, due to the massively long time it takes to set up over a USB2.0 line, then cloned it to a flash disk.) Is it possible to reassign C:\ to something like G:\ if this is the issue?

[Mr. Lim]

Originally Posted by josh.pruim

After installing Windows 7 and Inventor, I'm getting constant bluescreens on the portable drive when booted normally. I am unable to diagnose them as the minidump files are not being written anywhere. (I checked the flash disk's C:\, and I also checked C:\ on the internal hard drive of my computer.) Is it possible that the two are causing collisions in drive assignments, and not allowing it to boot? (My setup machine was not a physical machine, I used a virtual, due to the massively long time it takes to set up over a USB2.0 line, then cloned it to a flash disk.) Is it possible to reassign C:\ to something like G:\ if this is the issue?

Very likely the problem is Windows is expecting G:, but now that you're booting directly, it's on C: instead and is confused...

I once installed Windows to D:, then deleted the C: partition. Thus D: was reassigned to C:. It would constantly blue screen during boot.

I created a tiny placeholder C: partition, reassigned the Windows partition back to D:, and it came right back up.

You might be able to reassign C: to G: with a partitioning tool, but I'm not sure if the reassignment will persist, or if Windows will react nicely.

There's some discussion on the topic here:
http://www.sevenforums.com/installat...t-drive-2.html

The best thing might be to try and reinstall Windows again, ensuring the target drive is C: before the installation starts.

[josh.pruim]

Actually, what I was meaning is the flash disk is C:\, and my laptop has an internal drive, that is also C:\, to make a total of 2 C:\ drives at once. I was wondering if there was a way to install Windows to say, a drive G:\, so that the drive would not collide with any existing Windows installations? I would think the best way would be to mount an existing C:\ drive, then run the installation again. since the drive is an image, I am going to attempt to change the mapping of it. If that causes any issues at all, i will revert back to a reinstall with a mounted C:\ drive.

[josh.pruim]

I plugged it into an older laptop, I had removed the internal hard disk drive, and it still bluescreened. I am now assuming it is not the C:\ collision, but a more serious error.

[Mr. Lim]

Windows could be complaining about the changes in "hardware" between your different setups: virtualized, physical booting, and now a completely different laptop.

This is a shot in the dark, but if you can still boot into the image in your virtual environment, try generalizing the image.

http://technet.microsoft.com/en-us/l...=ws.10%29.aspx

[Mr. Lim]

Also, the "Phase III" section of this article might be useful.

http://ftanada.wordpress.com/2009/02...ckflash-drive/

[josh.pruim]

Originally Posted by Mr. Lim

Also, the "Phase III" section of this article might be useful.

http://ftanada.wordpress.com/2009/02...ckflash-drive/

I was actually looking for an article like this (I had been doing so many different things, but it never occurred to me to remove the USB controller from the VM during the install, I managed to get a crashdump, and it was indeed an issue with the USB drivers and how Windows unmounts and remounts USB devices that are not NTFS on boot)

The article on 'generalizing' the image appears a little difficult to understand, but from what I gather, you run

cd C:\Windows\System32\sysprep
sysprep.exe

then a box pops up that you can select "Enter OOBE" and check "Generalize"

[josh.pruim]

Ah. I got the normalization working, and right now I'm imaging the disk to a file.
So far my steps were

1. Follow this guide http://ftanada.wordpress.com/2009/02...ckflash-drive/*
2. Install Inventor
3. Generalize the OS
4. Boot Clonezilla, save image
5. Restore image to Flash Drive with Clonezilla

*Changes to Guide in my case
I Used a physical disk, partitioned to have one same-size minus 1GB as the flash disk (of what the computer sees, not what is on the label, my 32 GB drive was actually 30.9 GB, so, partition was 29.9 GB), and another occupying the rest of the disk space. Formatted both as NTFS, named the additional space (The second partition) "Image Cache" and the 29.9 GB "Windows"

Clonezilla, image the "Windows" partition to the "Image Cache" partition, then restore it to the USB drive. (My reason for imaging is so that if I need to make duplicates, it's very easy)

If you were being clever, you could get a 500GB hard disk, chop it into 5 partitions
(Windows installer disk, Windows install partition, Image cache, Clonezilla, and a universal bootloader) and make a laptop that you simply can set up, image, and prepare for restore without any external drives.

[josh.pruim]

Update: I was browsing the Mac OS App Store, and found Inventor Fusion for Mac.
http://itunes.apple.com/us/app/autod...29580720?mt=12
Since it's free, I don't see any disadvantages to testing it out. It's not full-featured CAD, but it appears to export files that either Inventor Pro or NX can read.