Creating a Virtual Floppy Image on MacOS

Posted on by tanarman

Create .flp’s with MacOS

  1. Create an empty file that will ultimately get attached as the virtual floppy in VmWare.
    dd if=/dev/zero of=myfloppy.img bs=1024 count=1440
  2. Attach the image and format it as FAT, without a partition map. hdiutil returns the device file where the image is attached, so we just pass that right into diskutil as the device to be formatted.
    diskutil eraseVolume MS-DOS MYFLOPPY `hdiutil attach -nomount myfloppy.img`
  3. After you’re done, right click the .img and ‘Get Info’ so you can rename it to .flp.

Source: http://thatswhatised.com/blog/post/creating-a-virtual-floppy-image-on-macos

Convert ASM to FLP and ISO

Posted on by tanarman 
nasm -f bin -o myfirst.bin myfirst.asm
dd status=noxfer conv=notrunc if=myfirst.bin of=myfirst.flp
mkisofs -o myfirst.iso -b myfirst.flp cdiso/

Using mkisofs to create an ISO from a folder on OSX

JANUARY 5, 2017

Quick tip, if you’re wanting to make a CD-style ISO file from a folder.

We can use mkisofs via the command line, to get it you need to install the cdrtools package.

On OSX:
brew install cdrtools

It should be available on other distributions under the same name.

To generate the ISO:
mkisofs -V CDNAME -J -r -o /path/to/output.iso /path/to/folder

 

Sumber:
http://mikeos.sourceforge.net/write-your-own-os.html
https://nertant.com/2017/01/05/using-mkisofs-to-create-an-iso-from-a-folder-on-osx/

 

Preview have an error opening a file: The file “iris_clusters.png” couldn’t be opened because you don’t have permission to view it.

Posted on by tanarman

Source:

http://apple.stackexchange.com/questions/209686/preview-refuses-to-open-pdf-file-incorrectly-claiming-a-permission-issue

After searching on the net I found a solution, following mainly this suggestion, though only deleting a small sub-directory:

  1. I removed the sub-directory ~/Library/Containers/com.apple.Preview/Data/Library/Saved Application State/com.apple.Preview.savedState
  2. I quit Preview and re-started it.

Using the Built in TFTP Server on OS X

Posted on by tanarman

Sumber:

Using the Built in TFTP Server on OS X El Capitan

OS X Built-in tftp Server

Default tftpd folder: /private/tftpboot
pastikan ada subfolder dengan permission 777 jika perlu menaruh file.

Perintah menjalankan service tftpd:

sudo launchctl load -F /System/Library/LaunchDaemons/tftp.plist
sudo launchctl start com.apple.tftpd

Perintah untuk mematikan layanan tftpd:

sudo launchctl unload –F /System/Library/LaunchDaemons/tftp.plist