On Wed, Oct 27, 1999 at 08:41:47AM +0200, Onno wrote: > >You'll want to copy the System.map to /boot as well. > ># cp /usr/src/kernel-source-2.2.12/System.map /boot/System.map-2.2.12 > > Would you elaborate on that please... I'll try, but I don't know much about the System.map file, so what I tell you could be wrong - you have been warned. :-) The System.map file is a "map" of the symbols in the kernel, and their location (I think, if you look at the file it has what looks like addresses and then a symbol name in the third column (I'm not sure what that other character means, the t/T in the second column)). Some programs (top, ps, etc.) can use the System.map to discover and display extra information... If you have the wrong System.map file for the current kernel, when you start those programs, they'll complain. Most/all of the programs which use the System.map now look for it in the following order: /boot/System.map-<kernel-version> /boot/System.map I think it looks in at least one other place, but I don't remember where that is (sorry). I haven't actually come across any information about the use of the System.map so far, which is why I don't really know a great deal. Maybe it's one of those things which you know the purpose of it if you truly have a use for it. ;-) The file isn't critical to the running of a system, so if you don't bother updating it, I don't think anything Really Bad (TM) will happen. Oh, if you use make-kpkg to build kernels, when you install them with dpkg the updating of the System.map is handled as part of that, so you don't have to worry about it. If someone can post a better explanation, or a pointer to some information, I'd be very grateful... -- [ Matthew Gregan ] [ GPG ID: B63A1E95 ] [ kinetik@ihug.co.nz ] [ GPG fingerprint: FB83 2911 F170 B31C 9E4A E382 CA8A A2F6 B63A 1E95 ]
Attachment:
pgpvpkVmj9vQk.pgp
Description: PGP signature