osis on Linux

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I am using Ubuntu Server 14.04 LTS (kernel ) for this development
Optionally you can delete all kernel which are not in use

sudo apt-get remove --purge $(dpkg -l 'linux-*' | sed '/^ii/!d;/'"$(uname -r | sed "s/\(.*\)-\([^0-9]\+\)/\1/")"'/d;s/^[^ ]* [^ ]* \([^ ]*\).*/\1/;/[0-9]/!d')

Install the tools needed for this development

apt-get install nfs-kernel-server debootstrap -y

Install the base system (Ubuntu 12.04 LTS 32) to /nfs folder on local system

debootstrap --arch i386 trusty /osis

Set /osis as NFS share

echo "" >> /etc/exports
echo "# Development" >> /etc/exports
echo "/osis             *(rw,no_root_squash,async,insecure)" >> /etc/exports

Sync you exports

sudo exportfs -rv

Set the mount option

nano /osis/etc/fstab

Paste the following and save the file

proc            /proc         proc    defaults 0 0
/dev/nfs        /             nfs     defaults 0 0
none            /tmp          tmpfs   defaults 0 0
none            /var/tmp      tmpfs   defaults 0 0
none            /media        tmpfs   defaults 0 0
none            /var/log      tmpfs   defaults 0 0

Change /osis/etc/resolvconf/resolv.conf.d/original file and update dns according to your enviornment if needed.

nano /osis/etc/resolvconf/resolv.conf.d/original

Now copy the timezone, localtime, sources.list over to the new base system and set the computer name for the base system

cp /etc/{timezone,localtime} /osis/etc/
cp /etc/apt/sources.list /osis/etc/apt/
echo "localhost" > /osis/etc/hostname

Now chroot to /osis

chroot /osis

Set the locales and hostname

echo "en_US.UTF-8 UTF-8" >> /etc/locale.gen && locale-gen en_US.UTF-8 && update-locale LANG=en_US.UTF-8
dpkg-reconfigure -u tzdata

Setup password for root

passwd

Setup root for autologin and exit out of chroot

echo "" >> etc/init/tty1.conf
echo "# Autologin account" >> etc/init/tty1.conf
echo "exec /bin/login -f root < /dev/tty1 > /dev/tty1 2>&1" >> etc/init/tty1.conf && exit

Now boot your new system in pxe and do the rest from there, it is musch safe and error free doing from within the live system rather than chrooting to it Install some usefull packages

apt-get update && apt-get dist-upgrade
apt-get install nano ssh wget partimage partclone udpcast ntfs-3g nfs-common smartmontools dnsutils

Considering that you arleady have windows (7 in this example) system ready so lets start the process of capturing windows image using partclone.

mkdir /ntfs
ntfs-3g -o force,rw /dev/sda1 /ntfs
rm -fr /ntfs/{pagefile.sys,hiberfil.sys}
umount /ntfs

Mount the nfs share

mount -o nolock,proto=tcp 192.168.1.2:/images /ntfs

Backup MBRs

dd if=/dev/sda of=/ntfs/sda.mbr bs=512 count=1
dd if=/dev/sda of=/ntfs/sda.vbr bs=512 count=63

Capture image you can also use dd method but I am using partclone.ntfs so partclone.dd -N -c -d -s /dev/hda1 -o hda1.dd.img

partclone.ntfs -N -c -d -s /dev/sda1 -o ntfs/sda1.img

After you are done delete the ntfs folder and reboot the system

umount /ntfs && rm -r /ntfs && reboot

Now test this image by restoring it to different machine, make sure you are using hard drive bigger or equal to the size we used to capture image from. Boot the machine to pxe

partclone.restore -N -d -s /ntfs/sda1.img -o /dev/sda1

Restore MBRs

dd if=/ntfs/sda.mbr of=/dev/sda bs=512 count=1

Delete the temporary folder (ntfs) and reboot the system

umount /ntfs && rm -r /ntfs && reboot

Partclone utils

wget http://www.idealworldinc.com/partclone-utils/partclone-utils.tar.gz

Read the argument passed by pxe config file

$(for var in $(cat /proc/cmdline); do echo export $var | grep =; done)
echo ${dns}

Restrict ssh access to oscis