Is it Too Slow to Run Yosemite Under Yosemite using Parallels - parallels

Got a new MacBook Air. Want to run different configurations of Yosemite (e.g. with and without Dropbox to test its effect on battery life). Is the latest version of Parallels fast enough to run Yosemite under Yosemite, or am I going at this wrong?

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Mac OS Sierra install failure: The file couldn't be opened

While trying to perform a clean installation of MacOS Sierra on a Macbook Pro 2012 (8Gb ram, 250 SSD Crucial Driver and i5 processor) through the boot install option (cmd + r) from the web (Internet install, an this is needed as I just installed the new SSD) the operation always gets stuck at 2 minutes before finishing.
Left it the whole night and in the morning saw the message in the image of this post.
Booted in the new AFP2 filesystem format for the drive as required in the Sierra version. Created the partition and erased the disk without any problem.
Seems the installer is fail fast but not very descriptive, any help would be appreciated otherwise that Mac will likely be a deluxe "cup holder" :(
Thanks a million
sierra boot install failure picture
Solved it myself in the end, for anybody stuck on this in the future.
And the only way I found out to do it is to install the OS that came with the Macbook Pro (2010 Mountain Lion in my case) and then update but from the installed system rather than the boot repair util.
Restart the Macbook and right after you hear the sound hold the option key until you see the spinning globe icon.
Input the WiFi credentials to access the repair util (this is the original util that came with your mac not the one updated that only bounds to install High Sierra OS)
Now install your default OS.
After this, inside the default OS, go to app store and download the High Sierra installer and install from there. Installation seemed to go fine.
Loads of effort but at least does the trick,
Hope it helps.

cx_freeze on MAC 10.9 Python 2.7.6 (32/64 bit)

I have developed an app on a Window PC using Python and wxPython. For the several weeks I have been trying to migrate it to a MAC mini running 10.9, Python 2.7.6 (32/64 bit) using the Eclipse IDE with PyDev. I was NOT a MAC user prior to about three weeks ago when I purchased a used Mac mini and started working on it. Due to the fact that wxPython is a 32-bit library only I am running Python in 32-bit mode out of Eclipse - this has worked well until now I am ready to attempt and produce a stand alone app via cx_freeze and I am hitting a problem that cx_freeze is building the bundle using the 64-bit Python and it will not work with my 32-bit wx_Python library.
My question is what can I do at this point in time? Obviously, if I had been smart I would have installed the 32-bit ONLY version of Python 2.7.6 (hind sight you know), but I did not. I have gone through all the write to /Library/Preferences/com.apple.python.preference file and setting environment variables only to learn that that does not apply except to Apple installs. One solution would be to install the 32-bit ONLY Python - scared I will mess my current development environment up so that is why I am asking here for help. Also, there may be a setting in cx_freeze to accomplish this too. Any help to a "green horn" MAC person would be greatly appreciated.

Mindstorms: Installation of NXT2.0f3 patch for Mac OS X Lion 10.7.3

Looking for installation help with NXT2.0f3 patch for mindstorms NXT 2.0 software on iMac w/ Lion 10.7.3. Base software installation from CD works fine (with some minor glitches once the NXT software is running that I can live with for now); however, applying the NXT2.0f3 patch (so-called Mac software fix downloaded from Lego) prevents NXT application startup. On application startup, I get an alert box with
"Error Code: 1003" stating that a required file is broken. The program then quits. No useful information (like a filename) there.
Mindstorms phone support wasn't helpful. Did reinstalls five times with different combinations of 32-bit and 64-bit mode OSX. Also tried installing driver package from CD to repair installation (after patch was applied), but no luck.
Has anyone got this working, or run into the same problem and have a solution?

TinyMCE not working on Mac OS Lion

I recently switched from TinyMCE 3.2.7 to 3.4.7 but one of our users has some issues. He's the only one running Mac OS Lion and he doesn't see the editor at all; all other people (running Linux, Windows, Mac OS Leopard) are seeing it. He's cleared his caches and tried multiple browsers, he even tried running Windows via Parallels but no luck. Any guesses?
Thanks,
Robbert

How to run legacy Mac code on a faster, remote machine?

We've inherited some legacy software that we need to run quite urgently. It was written in Lisp and we don't have the source code (developer is dead), only runs on Mac OS 9 (some bug seems to prevent it running on anything newer) and requires a license dongle to run.
We have an old machine that will run the software, but it is a dinosaur. Ideally, the solution would also provide for remote access as well.
My first thought was to use some kind of emulator on a newer machine, or even a VPS. But I have concerns about how these will work with the USB dongle. Can anyone suggest a solution better than accepting that working with old code sucks and getting on with it?
The most recent hardware I can think is a PowerPC Macintosh, with Mac OS X 10.4 (Tiger). It is the last version of Mac OS X to have the Classic Environment, that will let you run this legacy software.
Alternatively, if you don't have a PowerPC Mac in house, you can look into SheepShaver, a PowerPC emulator, however you'll need a Mac OS install CD.