how to uninstall software on Linux
If I install some software on a Linux system by building it with make and then make install, is there a command to give Linux to tell it to uninstall? I am asking if there is a "make uninstall"?
If I did the "make install" command and messed up, how can I undo it? When I was trying to build a kernel, with the instructions to build it, the PC crashed. This was for a 2.6.2X kernel. I rebooted the machine, and then it did not run right. I could have done something wrong. How can I undo it? Does Linux have a backup and restore capability? Can you set a restore point? |
There is a "make uninstall" target - but only if the developers implement one in the Makefile (most do).
If it's a kernel though, usually you have to copy the kernel image to your /boot directory for it to be "installed". I don't think kernel's have a "make uninstall" target though - as they usually compile everything into the image, and keep kernel modules in a single directory (I'm not sure where). I mean, if you re-issue the "make" command in the kernel source directory, it should just pick up where it left off. The basics for building a kernel are, simply: Code:
# make clean |
kernel build
Thank you for the comment.
The PC crashed before it finished the build, so I did not get to the install part. It crashed on the make. I built a kernel that had the image already there in /boot, but it was not called bzImage. It was called vmlinuz-2.6.2X. I did not use make bzImage. I just used make. Does it make a difference? Is that why I had problems with getting it to boot? The files bzImage and the vmlinuz seemed to be the same files but a different name. Does the boot image need to be called "bzImage" and does it need to be placed in /boot? I think that the make install puts the image in /boot. Do I still need to copy it there? What do I do with the vmlinuz file? If there is no uninstall in the Makefile, does that mean that you can not uninstall it and that it is stuck on your Linux? |
I've never used "make install" when building a kernel. But if a custom-compiled kernel doesn't work, just delete it from the /boot directory.
I have always just done the process I outlined above, as I know exactly which kernels are mine, and which kernels are installed by my distribution. Here's a decent guide on compiling a 2.6 kernel. Just try it with the most recent kernel source. Which distribution are you using, anyways, and why are you trying to compile your own kernel? Assuming you're a newbie, you should always stick to the kernels provided by your distribution's package manager - custom kerneling should only really be done if you (A) know exactly what you're doing, (B) need to change something to fix a problem with your current kernel, or (C) are trying to create a base kernel for installation on another system if you're, say, creating your own distribution. |
Her's a link to a tutorial I wrote for compiling a generic package from source.
http://hack.mypclinuxos.com/index.php?topic=79.0 [With some input from others to make it more understandable.] And yes, the command to remove the package is make uninstall. If you're new and already futching with make a kernel, it may end up being less frustrating to get your feet a bit wetter by having a better understanding of the ins and outs of building from source. It may be that your pc crashed because it was overloaded, which I don't think should have happened from compiling a kernel. I've never had the need to custom build a kernel but I wouldn't think it would require a huge amount of resources to the point the pc crashed. Only time that happened to me I was installing Gentoo to a pentium 3 laptop. [I do so love to torture a machine :)] |
I read windtalker10's tutorial and that was great help for newbies, like myself. During my research on "How to uninstall packages", I encountered another article that says something like;
--- when you need to manually uninstall packages built from source, you need to look into ./configure file and find locations of where files were copied and then delete those files from each directory. --- Is this the right procedure if "make uninstall" is not available? Following what's in ./configure and deleting files based on it cleans out the system? I believe Linux doesn't have registory like Windows does, so I guess I don't need to worry about it, right? (As you can see, I'm coming from Windows environment (trashed it and migrated to Linux environment now :) Thank you in advance. gibb |
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