“mknod: `/lib/udev/devices/ppp’: Operation not permitted” when updating Ubuntu 10.04 on virtual LXC machine

By Emanuelis, on September 15th, 2010

Today I wanted to update my virtual LXC Ubuntu and I got an error: mknod: `/lib/udev/devices/ppp’: Operation not permitted . . . → Read More: “mknod: `/lib/udev/devices/ppp’: Operation not permitted” when updating Ubuntu 10.04 on virtual LXC machine

How to solve Redmine error “Permission denied – /etc/redmine/default/session.yml” on Ubuntu 10.04

By Emanuelis, on September 15th, 2010

After installing Redmine on Ubuntu 10.04 Lucid Lynx from repositories (apt-get install redmine redmine-mysql) I got an error: Permission denied – /etc/redmine/default/session.yml . . . → Read More: How to solve Redmine error “Permission denied – /etc/redmine/default/session.yml” on Ubuntu 10.04

Workaround “/usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?)” on diskless Ubuntu

By Emanuelis, on August 26th, 2010

When trying to “aptitude upgrade” a diskless Ubuntu 10.04 machine I gen an arror:

update-initramfs: Generating /boot/initrd.img-2.6.32-23-generic Running postinst hook script /usr/sbin/update-grub. /usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?). User postinst hook script [/usr/sbin/update-grub] exited with value 1 dpkg: error processing linux-image-2.6.32-23-generic (–configure): subprocess installed post-installation script returned error exit . . . → Read More: Workaround “/usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?)” on diskless Ubuntu

KVM failed to start with error: internal error unable to start guest: chardev: opening backend “pty” failed

By Emanuelis, on August 25th, 2010

This is just a quick workaround.

After restarting my Ubuntu 10.04 server KVM virtual machines didn’t start. Tried manually:

virsh # start saturn error: Failed to start domain saturn error: internal error unable to start guest: chardev: opening backend “pty” failed

I needed a fast solution. Very fast googling and this gave me a . . . → Read More: KVM failed to start with error: internal error unable to start guest: chardev: opening backend “pty” failed

How to Fix LXC’s Error: PTY allocation request failed, stdin: is not a tty

By Emanuelis, on June 4th, 2010

I like LXC very much. But this error was killing me for a few days. Google gave me no answer about that.

I have Ubuntu 10.04 Lucid Lynx as a host and as LXC guest. This is what I was getting while trying to ssh to virtual host “hostingas”:

nzn@servukas:~$ ssh root@hostingas root@hostingas’s password: . . . → Read More: How to Fix LXC’s Error: PTY allocation request failed, stdin: is not a tty

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