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What is /boot/System.map ???
What does this file do? (Redhat 7.x)
The kernel README doesnt mention it, but some other documents do. If I am booting various kernels for testing, etc, often the System.map does'nt match the kernel I booted, does that matter, if not- why is it there?
The kernel README doesnt mention it, but some other documents do. If I am booting various kernels for testing, etc, often the System.map does'nt match the kernel I booted, does that matter, if not- why is it there?
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The the kernel and initrd can be specified to grub and it will use that definition once to boot the system. And since the kernel knows what its ID is it can find the modules dir as needed. The other, application level, things that use System.map have no easy way to figure out what system map is associated with the running kernel.
In a case where one is playing with kernels and has several around to boot with it would be possible to add some code to rc.local that figures out what kernel has just booted from 'uname -r' and adjusts the symlink as appropriate.
In a case where one is playing with kernels and has several around to boot with it would be possible to add some code to rc.local that figures out what kernel has just booted from 'uname -r' and adjusts the symlink as appropriate.
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