I was reading this. It's about detecting installed kernels. KERNELS???!! Is it possible that I have more than a kernel?? How is that??!!!!!
...so I followed the command in the instructions and this is my output:
username@hostname:~$ dpkg --list | grep linux-image
rc linux-image-3.11.0-12-generic 3.11.0-12.19 i386 Linux kernel image for version 3.11.0 on 32 bit x86 SMP
ii linux-image-3.11.0-13-generic 3.11.0-13.20 i386 Linux kernel image for version 3.11.0 on 32 bit x86 SMP
ii linux-image-3.11.0-14-generic 3.11.0-14.21 i386 Linux kernel image for version 3.11.0 on 32 bit x86 SMP
ii linux-image-3.11.0-15-generic 3.11.0-15.25 i386 Linux kernel image for version 3.11.0 on 32 bit x86 SMP
ii linux-image-3.11.0-17-generic 3.11.0-17.31 i386 Linux kernel image for version 3.11.0 on 32 bit x86 SMP
ii linux-image-3.11.0-18-generic 3.11.0-18.32 i386 Linux kernel image for version 3.11.0 on 32 bit x86 SMP
rc linux-image-3.8.0-19-generic 3.8.0-19.30 i386 Linux kernel image for version 3.8.0 on 32 bit x86 SMP
rc linux-image-3.8.0-25-generic 3.8.0-25.37 i386 Linux kernel image for version 3.8.0 on 32 bit x86 SMP
rc linux-image-3.8.0-26-generic 3.8.0-26.38 i386 Linux kernel image for version 3.8.0 on 32 bit x86 SMP
rc linux-image-3.8.0-27-generic 3.8.0-27.40 i386 Linux kernel image for version 3.8.0 on 32 bit x86 SMP
rc linux-image-3.8.0-30-generic 3.8.0-30.44 i386 Linux kernel image for version 3.8.0 on 32 bit x86 SMP
ii linux-image-3.8.0-31-generic 3.8.0-31.46 i386 Linux kernel image for version 3.8.0 on 32 bit x86 SMP
rc linux-image-extra-3.11.0-12-generic 3.11.0-12.19 i386 Linux kernel extra modules for version 3.11.0 on 32 bit x86 SMP
ii linux-image-extra-3.11.0-13-generic 3.11.0-13.20 i386 Linux kernel extra modules for version 3.11.0 on 32 bit x86 SMP
ii linux-image-extra-3.11.0-14-generic 3.11.0-14.21 i386 Linux kernel extra modules for version 3.11.0 on 32 bit x86 SMP
ii linux-image-extra-3.11.0-15-generic 3.11.0-15.25 i386 Linux kernel extra modules for version 3.11.0 on 32 bit x86 SMP
ii linux-image-extra-3.11.0-17-generic 3.11.0-17.31 i386 Linux kernel extra modules for version 3.11.0 on 32 bit x86 SMP
ii linux-image-extra-3.11.0-18-generic 3.11.0-18.32 i386 Linux kernel extra modules for version 3.11.0 on 32 bit x86 SMP
rc linux-image-extra-3.8.0-19-generic 3.8.0-19.30 i386 Linux kernel image for version 3.8.0 on 32 bit x86 SMP
rc linux-image-extra-3.8.0-25-generic 3.8.0-25.37 i386 Linux kernel image for version 3.8.0 on 32 bit x86 SMP
rc linux-image-extra-3.8.0-26-generic 3.8.0-26.38 i386 Linux kernel image for version 3.8.0 on 32 bit x86 SMP
rc linux-image-extra-3.8.0-27-generic 3.8.0-27.40 i386 Linux kernel image for version 3.8.0 on 32 bit x86 SMP
rc linux-image-extra-3.8.0-30-generic 3.8.0-30.44 i386 Linux kernel image for version 3.8.0 on 32 bit x86 SMP
ii linux-image-extra-3.8.0-31-generic 3.8.0-31.46 i386 Linux kernel image for version 3.8.0 on 32 bit x86 SMP
ii linux-image-generic 3.11.0.18.19 i386 Generic Linux kernel image
username@hostname:~$
Woah! Hold on a second!! So those things are kernels???!! And I had all that in my system and I didn't know??! I didn't install anything!! Or maybe it's the update manager that did this? ... ... ...If it's true then do I need all this?? If no then it should be taking up lots of space of my drive!! And then how do I clean up??
Please explain as much details as possible! It seems that there's a lot that I don't understand!
The kernel can be updated during a normal update. All the kernels remain on the hard disk and should be able to be booted from the grub menu presented at boot time. I keep the old kernels, there is no harm in doing so.
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