Xen: PTY allocation request failed

$ ssh vm3.rootspirit.com -l root
[email protected]'s password:
PTY allocation request failed on channel 0
stdin: is not a tty

Solution:

Kill the DomU (xm console *might* work, but somehow rarely works for me).

mkdir /tmp/disk
mount /path/to/disk.img /tmp/disk
chroot /tmp/disk /bin/bash

=> in chroot env

nano -w /etc/fstab

And add (though this is probably not needed):

none            /dev/pts      devpts    defaults        0   0

And install udev:

apt-get install udev

Clean up, and restart DomU

exit
umount /tmp/disk
xm create /path/to/xen/vm.cfg

Should do the trick. 🙂

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