St. Ignatius College Prep Tech Blog

Tag: mac

  • Changing the error policy on a CUPS printer

    The default error policy for printers on CUPS (which Mac OS X uses, and which most Linux systems also use) is stop-printer. You can see information about your printers and error policies by looking at the output of the printers.conf file with this terminal command: sudo cat /etc/cups/printers.conf If you want to get the actual […]

  • Fixing Apache after upgrading to El Capitan

    I’m not sure how many people are running Apache on non-server Mac OS X, but if you are and upgrade from Yosemite to El Capitan, you’ll get some breakage. The breakage won’t be as bad as upgrading from 10.10.4 to 10.10.5 was. Apache generally will still work (as in the server will server up files […]

  • hdiutil: create failed – error -5341

    Usually if I have an .app I want to import into Munki, I just use munkiimport nameofapp.app, and Munki automatically creates a read-only disk image (.dmg) with the .app inside. For some reason, with the mBlock.app, I kept getting a 5341 error. I tried this workaround, but I still got the same error. What worked […]

  • Using a terminal command to disable App Store automatic checks

    If you want to automate disabling the App Store auto check, the terminal equivalent of System Preferences > App Store > Automatically check for updates is sudo defaults write /Library/Preferences/com.apple.SoftwareUpdate.plist AutomaticCheckEnabled -bool falseThis is handy to know in case you’re managing updates a different way (e.g., Munki) and don’t want your users pestered with update […]

  • Licensing GSP Deployments with a Payload

  • Preparing SonicWALL Mobile Connect for Munki

    I’ve found NetExtender (Packaging NetExtender for Munki) to be a little less buggy than SonicWALL Mobile Connect, but NetExtender is pretty much non-functioning in El Capitan, so I’m looking at possibly deploying SonicWALL Mobile Connect in the future. The import process into Munki for the .app is fairly straightforward. You install SonicWALL Mobile Connect from […]

  • Installing rEFInd on Mac OS X El Capitan

    If you’re using rEFInd on a Mac (for example, if you’re dual-booting or triple-booting with a Linux OS), you may have found rEFInd worked fine with Yosemite but broke with El Capitan. This guide worked for me to get it going again: Installing rEFInd on Mac OS X El Capitan.

  • Enable duplex printing via terminal command on a Mac

    If you want to enable duplex printing via a terminal command (e.g., trying to fix a bunch of already-installed printers with duplex disabled, and you want to fix that with a script), first you have to figure out what parameter to change. On one Mac with the printer installed, find the printer via System Preferences […]

  • Fixing ffmpeg for Munki (allowUntrusted)

    Apparently the version of ffmpeg that the Audacity Team wants you to install for Audacity has an invalid or expired signature, which now prevents Munki from installing it. The best solution (workaround) I’ve found is (author of Munki) Greg Neagle’s own: FIXING PACKAGES WITH EXPIRED SIGNATURES

  • Upgrading to Yosemite using Managed Software Center (Munki)

    If you’re running an older version of OS X (e.g., Mavericks or Mountain Lion) and the tech department is telling you to use Managed Software Center to upgrade to Yosemite, this is how you do it. Prerequisites Set aside time for this upgrade. Keep in mind the entire process can take between 45-90 minutes. You […]