Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have installed Ubuntu from wubi.exe along-side windows, and I am a new user to it.

If my kernel has an error after modifying it and replacing the previous one, does the "safe" option in my bootloader recover my kernel?

share|improve this question
I'm not familiar with wubi, but usually you just add another kernel and leave the existing ones where they are in case you need them later. – Eroen Sep 18 '12 at 23:42

If you build your kernel following the proper procedures for building Ubuntu kernels (I don't know what they are), then when you install the resulting .deb packages you'll get an additional entry in the GRUB boot menu. Your old kernel(s) will still be there unless you explicitly remove them.

Recovery mode isn't a special kernel. It just boots a minimal system, using whatever kernel it's paired with.

share|improve this answer
I'm not an Ubuntu user, but I don't think it's common to package a kernel in a .deb for local use. It makes more sense when distributing it to a (large) number of computers. – Eroen Sep 20 '12 at 15:09
@Eroen: Actually, it's a perfectly normal way. Ubuntu provides easy tools (you don't have to start from scratch) and the approach is often recommended on Ask Ubuntu or the Ubuntu Forums. IMHO, the benefits of making a .deb far outweigh the benefits of spending a little extra time--only a minute or two extra once you know what you're doing. Having un-packaged software on your machine that you're not developing is a recipe for problems down the road. – Scott Severance Sep 25 '12 at 12:24
Oh. Sorry about the noise. Different distros, different tools ;) – Eroen Sep 25 '12 at 12:30

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.