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Just got a shiny new vps with AlienVPS after waiting way to long for BuyVM to get in some stock. Anywho, I booted it up, installed Arch Linux, went to update, and BLAM! got a little broken VPS with the error: FATAL: kernel too old. Well I’ve come across this before, and it normally has to do with the Host Node being less than 2.6.18 kernel & the VPS not being happy when you try to update glibc.
#old kernel support needs to be compiled into glibc --enable-kernel=2.6.18 --disable-profile
Anywho, the after trying to get the package & update with a pacman -Su; Ignoring glibc & toolchain in pacman.conf, and some other tomfoolery, I remembered that I can just add a nice friend of the VPS world, and get everything golden.
Open up /etc/pacman.conf with a text editor (vi/vim/nano)
Add the following ABOVE CORE REPO!:<div>
[glibc-vps] Server = http://dev.archlinux.org/~ibiru/openvz/glibc-vps/$arch # where arch == i686 or x86_64
Run pacman -Syu
Do the following outlined here: http://fsk141.com/fix-pty-allocation-request-failed-on-channel-0
Sit back and enjoy your success…
Source (had to remember repo link): https://wiki.archlinux.org/index.php/VPS_Repo