dpkg-query --show --showformat='${Installed-Size}\t${Package}\t${Status}\n' | grep -v deinstall | sort -nr | less

adapted from Martins Blog

Clear dpkg status file

dpkg-Status sorted:
grep Status /var/lib/dpkg/status|sort|uniq -c

purge rc packages:
dpkg -P $(dpkg -l \*|grep ^rc|awk '{print $2}')

purge for other status:
grep -B 2 'deinstall ok config-files' /var/lib/dpkg/status|sed /^$/d |grep Package|awk '{print $2}'

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---

Clusterssh opens for each connection a xterm and sends a keystroke to each window.

You can also work in only one xterm.

#> apt-get install clusterssh

I use approxd for caching .deb's using port 9999. This port is not reachable by all my hosts,
therefore i use remote port forwarding from ssh.

I can type

#> cssh -o "-R9999:approxy:9999" host1 host2 host3

or create a default config

#> cssh -u > $HOME/.csshrc

You can define different clusters aliases. Each alias consists of some hosts:

clusters = apt mon
apt = host1 host2 host3
ssh_args= -x -o ConnectTimeout=10 -R9999:approxy:9999

now i only type

#> cssh apt


a small patch makes "retile windows" working for me:

--- ClusterSSH.pm.orig 2010-09-27 13:23:02.561375883 +0200
+++ /usr/share/perl5/App/ClusterSSH.pm 2010-09-27 13:09:27.011375882 +0200
@@ -1319,7 +1319,7 @@
logmsg( 3,
"x:$current_x y:$current_y, r:$current_row c:$current_col" );

- $xdisplay->req( 'UnmapWindow', $servers{$server}{wid} );
+# $xdisplay->req( 'UnmapWindow', $servers{$server}{wid} );

if ( $config{unmap_on_redraw} =~ /yes/i ) {
$xdisplay->req( 'UnmapWindow', $servers{$server}{wid} );


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---

First get ubuntu-vm-builder from http://packages.ubuntu.com/intrepid/ubuntu-vm-builder

#> dpkg -i ubuntu-vm-builder_0.6_all.deb

I suggest to use approx for caching packages

#> sudo apt-get kvm libvirt-bin

#> sudo adduser `id -un` libvirtd (and relogin)

To have a working virio inside the guest i patched:

--- /usr/share/ubuntu-vm-builder/templates/libvirt.tmpl.orig
+++ /usr/share/ubuntu-vm-builder/templates/libvirt.tmpl
@@ -18,13 +18,14 @@
     <interface type='network'>
       <mac address='%MAC%'/>
       <source network='default'/>
+      <model type='virtio'/>
     </interface>
     <input type='mouse' bus='ps2'/>
     <graphics type='vnc' port='-1' listen='127.0.0.1'/>
 %loop%
     <disk type='file' device='disk'>
       <source file='%img%'/>
-      <target dev='hd%curdisk%'/>
+      <target dev='hd%curdisk%' bus='virtio'/>
     </disk>
 %/loop%
   </devices>

#> ubuntu-vm-builder
Read More...

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---

* enable port tcp 80 forwarding on your firewall

because adept_manager connects directly to http://changelogs.ubuntu.com/
https://bugs.launchpad.net/ubuntu/+source/adept/+bug/153016/comments/13

* kdesu "adept_manager --dist-upgrade-devel"

if you use a proxy like approx stop adept_manager after changing /etc/apt/sources.lists and rewrite to

deb http://proxy:9999/ubuntu/ hardy-security universe main multiverse restricted
deb http://proxy:9999/ubuntu/ hardy-updates universe main multiverse restricted
deb http://proxy:9999/ubuntu/ hardy main universe multiverse restricted

and start it again.

after upgrade done add

deb http://proxy:9999/medibuntu hardy free non-free

to /etc/apt/sources.lists

on my proxy /etc/approx/approx.conf:

ubuntu          http://ubuntu.inode.at/ubuntu
medibuntu       http://de.packages.medibuntu.org

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---

To bootstrap debian sid on a second harddisk do following

* create partitions / filesystems

cfdisk /dev/hdc
mkfs.ext2 /dev/hdc1
mount -o rw,suid,dev /dev/hdc1 /mnt

mkswap -f /dev/hdc2
swapon /dev/hdc2

* bootstrap (with a deb proxy like approx)

cdebootstrap -v sid /mnt http://proxy:9999/debian

install cdebootstrap from hardy if something went wrong

wget [mirror]cdebootstrap_0.4.4ubuntu1_i386.deb
dpkg --force-all -i cdebootstrap_0.4.4ubuntu1_i386.deb

* enter chroot

mount --bind /proc /mnt/proc/
mount --bind /dev /mnt/dev

chroot /mnt
export LANG=C

* install kernel and bootloader

apt-get install grub linux-image-2.6.24-1-486

cat /etc/kernel-img.conf<<EOF
# Kernel Image management overrides
# See kernel-img.conf(5) for details
do_symlinks = yes
relative_links = yes
do_bootloader = no
do_bootfloppy = no
do_initrd = yes
link_in_boot = no
postinst_hook = update-grub
postrm_hook = update-grub
EOF

* config bootloader

echo "/dev/hdc1 / ext2 rw 0 0" > /etc/mtab
grub-install /dev/hdc
update-grub

change in /boot/grub/menu.lst root=/dev/hdc1 with UUID
sed "s|root=/dev/hdc1|root=UUID=$(/lib/udev/vol_id --uuid /dev/hdc1)|" /boot/grub/menu.lst

* create /etc/fstab

echo "UUID=$(/lib/udev/vol_id --uuid /dev/hdc1) / auto defaults,noatime 0 1" > /etc/fstab

echo "UUID=$(/lib/udev/vol_id --uuid /dev/hdc2) none swap sw 0 0" >> /etc/fstab

* add a user

shadowconfig on
adduser USERNAME

* setup network, timezone

echo "nameserver NAMESERVERIP" > /etc/resolv.conf
echo HOSTNAME >/etc/hostname
cat > /etc/network/interfaces <<EOF
auto lo eth0
iface lo inet loopback
iface eth0 inet dhcp
EOF

* individual configs

tzselect

/etc/default/rcS:
TMPTIME=0
SULOGIN=no
DELAYLOGIN=no
UTC=yes
VERBOSE=no
FSCKFIX=yes
RAMRUN=yes
RAMLOCK=yes

/etc/default/syslogd:
SYSLOGD="-m 0"

* cleanup

apt-get clean
apt-get install deborphan
apt-get remove --purge $(deborphan)

* search for unused packages

dpkg -l | grep ^ii | less

* remove unused packages

apt-get remove --purge aptitude cdebootstrap-helper-diverts laptop-detect nano tasksel-data tasksel vim-common vim-tiny

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---

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