Hey everyone!

my first time here, and thanks for all the great reads!
I am trying to install an older OS 7.5.3 System files via Basilisk II and I simply don't know if i am in over my head
i am running the latest OS in Sierra and Basilisk II opens just fine, I have obtained ALL the right files, per some videos i have seen on the tube and am constantly prompted with
"Could not start Basilisk II (So such file or directory)"

I have gone over what i did at least 6 times and its the same result.
double checked spelling and placement of folders.

am i simply not able to do this on Sierrea? that is where my mind is at this point.

My ultimate goal is to get this OS on a raspberry PI but would like to get it running on my mac first.

thanks so much everyone!

Brian D

Try copying BasiliskII.app to the desktop and then moving it back to where you had it in the Applications folder. Something inside the app bundle appears to be running afoul of Sierra's security model (or the actual executable inside isn't marked executable).

thanks for the tip
before i do this
i just wanted to let you know that the BasiliskII app was downloaded as a zip and then unzipped to a folder in my downloads folder, from there i created a basilisk folder in my home folder to put those apps files and all the proper files needed in that folder, in my home folder.

the app itself was never i the actual applications folder.

does this raise any red flags?

so odd thing happened.

I decided to do what others have mentioned on the web about moving the app to the desktop, and though it didn't make sense in my situation i thought, i did it anyway.
well here is what i did.

1. moved main app icon to desktop. attempted to open, and save and start up. FAILED
2. moved main app icon back to root folder, attempted to open, save and start, FAILED
3. SAME as #2 above, but i for some reason decided to look in the menu drop down of basilisk for FILE and saw save and start so i decided to hit save, and then hit start and BAM!!! it opened and ran!!

so i don't know why, i don't know how but it seems that the actual start and save in the window were not working vs doing it from the file drop down window!

super super super weird and glad i decided to go further

Same here. (or similar) Sorry for not reading you posting earlier.
The Basilisk II GUI app does not start the emulator in Sierra 10.12.4. The GUI does configure things though and after save and quit, the Basilisk II app does work.

Apple won't care much about unsigned old 32 bit apps. Trouble ahead.
Keep a 10.6.8 instance naively or in a VM to be on the safe side.

Although I rarely do so, I can start BasiliskII fine from BasiliskIIGUI in macOS Sierra 10.12.4.

Did anyone find a resolution to this error yet I also have it on Sierra :/ (

In my installation, dating from before Sierra, this error does not occur in Sierra. If your's is newly installed, it may have an issue with a new security feature in Sierra. Did your BasiliskII installation exist before you upgraded OSX/macOS to Sierra or is it newly installed in Sierra?

Edit: If BasiliskII is newly installed in Sierra, see the workaround described by adespoton above. Apply it to both BasiliskII.app and BasiliskIIGUI.app.

(The GUI is only needed for initial configuration or for changing settings later. One can save the settings in the GUI and then launch BasiliskII directly. No need to start BasiliskII from the GUI.)

The workaround didn't help. The config file seems properly formatted and in my home dir. However, when I launch Basilisk, I get the no startup disk icon. I followed the tutorial here: http://www.emaculation.com/doku.php/bas ... _osx_setup

BasiliskII cannot find a compatible start-up volume. If you followed the tutorial, that should be the "DiskTools_MacOS80.image" file.

Please post here the content of the prefs file, so we can see if it is configured correctly.

Open Terminal (in /Applications/Utilities/) and type at the prompt:
The file will open in your default text editor. Select all content, copy and paste here.

some thing is happening to me, please take a look. -thanks, G.

disk /Users/toasterized infinite/BasiliskII/DiskTools_MacOS80.image
disk /Users/toasterized infinite/BasiliskII/MacOS753
disk /Users/toasterized infinite/BasiliskII/InstallerParts
extfs /Users/toasterized_infinite/BasiliskII/Shared
screen win/1280/800
seriala
serialb
ether slirp
udptunnel false
udpport 6066
rom /Users/toasterized infinite/BasiliskII/PERFORMA.ROM
bootdrive 0
bootdriver 0
ramsize 67108864
frameskip 2
modelid 14
cpu 4
fpu true
nocdrom false
nosound false
noclipconversion false
nogui false
jit true
jitfpu true
jitdebug false
jitcachesize 2048
jitlazyflush true
jitinline true
keyboardtype 5
keycodes true
keycodefile /Users/toasterized infinite/BasiliskII/BasiliskII_keycodes
mousewheelmode 1
mousewheellines 3
dsp /dev/dsp
mixer /dev/mixer
ignoresegv true
idlewait true


side note: i had to add a zero for DiskTools_MacOS80.image

- Are the GUI app and BasiliskII itself in the same folder?
- Are you trying BasiliskII in macOS 10.12 (Sierra)?
- If so, did you try the workaround for starting the newly downloaded app files for the first time in Sierra as described above: Copy the application files (only the two application files!) to the desktop. Remove the original files, then move the copies back in place of the original files.


The name doesn't really matter as long as the name in the entered path matches the name of the file. It should work without the zero added.