Glibc - How to back to old version?? Help! Help!

[lfs]

My work needs Glibc up to 2.5.1 but with Fedora8, Glibc has a newer version (2.7?? 2.8??) that prevents me from continuing my work. Anyone shows me how to turn Glibc to that older version please?? I'm getting used to working with Linux

Thanks so much!!

[daark.child]

I don't think its a good idea because you could end up breaking a lot of the applications on your distro that were built using the newer glibc versions. Can't this app be ported to newer versions of glibc?

[lfs]

Thanks but Glibc is only a small part of my work and its newer version is not compatible with my work now

[i92guboj]

Thanks but Glibc is only a small part of my work and its newer version is not compatible with my work now

Unless you are doing really specific and low level stuff, "porting" your code should not be a problem, as long as you stick to standard C, of course.

But well, if you really don't want to do that, then you need an alternate solution. My best guess would be to use a chroot jail with another distro that ships that version of glibc. You can't change the glibc of your distro, and downgrading it is never supported, and will likely break all your binaries due to incompatible ABI. So, it is not a good idea to do that.

You can install another distro into a different partition, or even into a directory, then mount -obind the sys, proc and dev directories from your root installation into your new one, and finally chroot into it.

If you need more concrete instructions on something, just ask. You only need to find a distro that you like and that can install with glibc-2.5, as a reference, Gentoo ships that version and many more:

# eix glibc
[I] sys-libs/glibc
     Available versions:  (2.2)  [P]2.2.5-r10 [P]2.3.2-r12 2.3.5-r3 2.3.6-r4 2.3.6-r5 2.4-r4 2.5-r2 2.5-r3 2.5-r4 **2.5.1 ~2.6 2.6.1 ~2.7 (~)2.7-r1
        {build debug erandom gd glibc-compat20 glibc-omitfp hardened linuxthreads-tls multilib nls nptl nptlonly pic profile selinux userlocales vanilla}
     Installed versions:  2.7-r1(2.2)(15:24:19 17/01/08)(nls profile -debug -gd -glibc-compat20 -glibc-omitfp -hardened -multilib -selinux -vanilla)
     Homepage:            http://www.gnu.org/software/libc/libc.html
     Description:         GNU libc6 (also called glibc2) C library