Pandu Poluan <pa...@poluan.info> writes: > On Wed, Aug 10, 2011 at 20:02, <c...@chrekh.se> wrote: >> Also, beware. If you recompile glibc withe NPTL_KERN_VER set, you can't >> boot with older kernels anymore. >> > > Can you explain what did you mean with "older kernels"? Kernels older > than a certain version, or a previously-compiled kernel on my system? >
Older then the kernel you specified, previously-compiled kernels not older than that is still fine. Any executable linked to glibc will fail unconditionally with "FATAL: Kernel too old", including init. > Anyways, this is a fresh install, so I don't think I'll have any trouble. > > But will still appreciate a reference and/or explanation re: > NPTL_KERN_VER, though. glibc will be configured with --enable-kernel=2.6.38 The configure help says this; --enable-kernel=VERSION compile for compatibility with kernel not older than VERSION -- Christer
