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Is it a good idea to remove the vmlinuz, system.map, initrd.img, config and abi files from old kernels in /boot manually?

They're not listed in dpkg, because I installed Precise Pangolin without removing Lucid Lynx before.

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Possible? Absolutely, simple sudo rm maneuver. Is it a good idea? This I think is what your question is. –  adempewolff May 31 '12 at 17:31
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I think that @adempewolff is right, but becarefull xD –  Dr_Bunsen May 31 '12 at 17:48
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@Dr_Bunsen for the faint of heart /boot/$ sudo mv vmlinux ~/, ~/$ sudo chown chris:chris vmlinux and then finally ~/$ rm vmlinux would also do the trick :P –  adempewolff May 31 '12 at 17:53
    
Ok, so it works. Thank you. –  chris May 31 '12 at 18:40
    
@adempewolff well ok, I dont care if I screw up my os, just reinstall it, but I can understand that some people would as kthat, so I thought, maybe I should mention it –  Dr_Bunsen Jun 1 '12 at 9:40
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Kernel version for Lucid Lynx is 2.6.32 and no other Ubuntu release uses that kernel. It is safe to remove those old Lucid's kernels runnning:

sudo rm /boot/*-2.6.32-*
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