Re: [gentoo-user] Problems updating glibc-2.26-r7

[Mike Gilbert]

On Sat, Jun 23, 2018 at 1:21 PM, wabe <wabenbau@×××××.com> wrote:
> "Andreas K. Huettel" <dilfridge@g.o> wrote:
>
>> Am Freitag, 22. Juni 2018, 20:11:51 CEST schrieb wabe:
>> > Hi folks,
>> >
>> > I have a problem and didn't find a solution yet.
>> >
>> > Upgrading glibc from 2.25-r11 to 2.26-r7 doesn't work. It says
>> >
>> > /var/tmp/portage/portage/sys-libs/glibc-2.26-r7/work/build-x86-x86_64-pc-lin
>> > ux-gnu-nptl/elf/sln
>> > /var/tmp/portage/portage/sys-libs/glibc-2.26-r7/work/build-x86-x86_64-pc-li
>> > nux-gnu-nptl/elf/symlink.list
>> > /var/tmp/portage/portage/sys-libs/glibc-2.26-r7/work/build-x86-x86_64-pc-li
>> > nux-gnu-nptl/elf/sln:
>> > /var/tmp/portage/portage/sys-libs/glibc-2.26-r7/work/build-x86-x86_64-pc-li
>> > nux-gnu-nptl/elf/sln: cannot execute binary file make[1]: ***
>> > [Makefile:106: install-symbolic-link] Error 126
>> >
>> > Compiling other packages is no problem. However when I try to
>> > reinstall glibc-2.25-r11 it also exits with an similar error at the
>> > end:
>>
>> [...]
>>
>> You're trying to make a multilib glibc, and your kernel does not
>> support one of the resulting ABIs (most likely CONFIG_IA32_EMULATION
>> needs to be turned on in the kernel configuration to be able to run
>> x86 binaries on an amd64 install).
>>
>> (That said, this is a rather stupid bug in the glibc build system and
>> needs to be fixed eventually.)
>
> Thank you very much for your answer.
>
> You are right. Compiling the kernel with CONFIG_IA32_EMULATION solved
> the problem. I switched from hardened kernel to gentoo standard kernel
> some time ago and just forget to compile it with that option.
>
> IIRC I build a multilib system many years ago because of grub. But maybe
> I don't need multilib anymore. How can I find out if I have x86 binaries
> installed?

This should give you a good start:

scanelf -M 32 /bin /sbin /usr/bin /usr/sbin /usr/local/bin /usr/local/sbin /opt