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libxcrypt provides /usr/lib/libcrypt.so.2, while glibc only has /usr/lib/libcrypt.so.1
Arch for x86_64 pulls in libxcrypt via dependency (e.g. of systemd), but I experienced it not being installed on i686 and i486 (and most probably also pentium4).
This leads to broken linking in e.g. sshd:
# ldd /usr/bin/sshd
...
libcrypt.so.2 => not found
...
If this is the case for you after an update, install libxcrypt manually
pacman -S --asdeps libxcrypt
I'm reluctant to force-move systemd to core, because this might break other stuff which I'm currently not aware of.
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