Tweak yaboot so Mac OS X is my default OS, not Ubuntu or Yellow Dog Linux?
I've been working on installing some different Linux operating systems on my G4-based Apple PowerBook as alternative operating systems to the (elegant) Mac OS X. Why? Because they're there. :-)
Once installed, Ubuntu Linux and Yellow Dog Linux both add something called yaboot which then controls the boot-up sequence. This boot control application that lets you pick which operating system you want to have run gives you about 15 seconds to pick between Linux and Mac OS X then defaults to launching Ubuntu. Not what I wanted at all.
The first thing I needed to do once Ubuntu was installed, therefore, was to change the default operating system to Mac OS X, not Linux.
Fortunately, there�s a great yaboot reference document online at the yaboot site.
It turns out that the change is trivially simple: in the file /etc/yaboot.conf I simply needed to add defaultos=macosx).
The second - and critical - step is to actually install the updated bootstrap loader configuration file, and that�s done with
/sbin/ybin -vwhich figures out where the new configuration file should be moved and does it. Perhaps the most amusing line in the entire process is the output statement �Blessing /dev/hda6 with Holy Penguin Pee�.
Only in the world of Linux!
If you haven't read my other article on customizing yaboot, it's a nice adjunct to this piece: Can Yaboot Support Three OS Choices for Linux and Mac OS X?
Related Unix and Linux Help articles:
✔ Copy and Paste from the Mac OS X Command Line?
I am constantly running commands in Terminal.app on my MacBook and then copying and pasting the results into email messages or documents. Yes,...✔ Shell script to convert lowercase to title case?
As part of a project I'm working on, I find myself deep in a Linux shell script, needing to have a subroutine that...✔ Can I script renaming files based on an XML data map?
I have a folder full of files which are named with four digits and a file extension e.g. 0312.file and an XML-file describing...✔ Test for valid numbers in a Bash shell script?
In a different discussion on this site [see Redirecting input in a shell script] a visitor commented that "I was too busy trying...✔ Review: iSSH for the iPad/iPhone
If you're running an online business like I am, there are times when you need to connect and log in to the server...
Let's stay in touch!
Sign up for my weekly AskDaveTaylor Newsletter and you'll receive even more tech and gadget help right to your inbox, along with exclusive news and industry updates. It's good stuff. I promise!
I do have a comment, now that you mention it!
Check This Out Too...
Look for Answers
All Our Categories
Apple iPad Help
Articles and Reviews
Auctions and Online Shopping
Blogs and Blogging
Building Web Site Traffic
Business and Management
Computer and Internet Basics
d) None of the Above
Google Gmail Help
Google Plus Help
Industry News and Trade Shows
iPhone and Cell Phone Help
iPod, Sony PSP and MP3 Player Help
Kindle Fire Help
Mac OS X Help
Pay Per Click (PPC) Advertising
Search Engine Optimization (SEO)
Shell Script Programming
Tech Support Video Help
The Writing Business
Twitter, LinkedIn and Social Network Help
Unix and Linux Help
Video Game Tips and Help
Windows PC Help
Find Me on Google+
ADT on G+