Debian Sarge on Xen: Difference between revisions
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http://wiki.xensource.com/xenwiki/DebianSarge | http://wiki.xensource.com/xenwiki/DebianSarge | ||
=== PROCEDURE === | |||
Prepare your storage. You can use partitions, LVM volumes or simple file-based images. I choose file-based for the flexibility - for a real server you would NOT want to use a file-based because the IO sucks, use real partitions or LVM volumes. | |||
Choosing a suitably large partition (/usr) I linked it into /opt/xen | |||
mkdir /usr/xen | |||
ln -s /usr/xen /opt/xen | |||
Bootstrap Debian into a file-based image (note: this is a meager setup of 1GB root / and 128MB swap, you'll likely want much more for a real-world VM) | |||
mkdir -p /opt/xen/domains/vm01 | |||
dd if=/dev/zero of=/opt/xen/domains/vm01/diskimage bs=1024k count=1024 | |||
dd if=/dev/zero of=/opt/xen/domains/vm01/swapimage bs=1024k count=128 | |||
mkfs.ext3 /opt/xen/domains/vm01/diskimage | |||
mkswap /opt/xen/domains/vm01/swapimage | |||
mkdir /mnt/disk | |||
mount -o loop /opt/xen/domains/vm01/diskimage /mnt/disk | |||
apt-get install debootstrap #If necessary | |||
debootstrap --arch i386 sarge /mnt/disk http://ftp.us.debian.org/debian | |||
chroot /mnt/disk /bin/bash | |||
cd /etc; vi hostname hosts resolv.conf | |||
Add minimal entries as desired. | |||
Create an ''/etc/fstab'' file | |||
/dev/sda1 / ext3 errors=remount-ro 0 1 | |||
/dev/sda2 none swap sw 0 0 | |||
proc /proc proc defaults 0 0 | |||
Logout and unmount ''/mnt/disk'' | |||
Now you can setup the first VM (aka vm01) | |||
cat > /etc/xen/vm01.cfg | |||
kernel = "/boot/vmlinuz-2.6.10-xenU" | |||
memory = 96 | |||
name = "vm01" | |||
dhcp = "dhcp" | |||
disk = [ 'file:/opt/xen/domains/vm01/diskimage,sda1,w','file:/opt/xen/domains/vm01/swapimage,sda2,w' ] | |||
root = "/dev/sda1 ro" | |||
Start it | |||
xm create vm01.cfg -c | |||
> Using config file "/etc/xen/vm01.cfg". | |||
> Started domain vm01, console on port 9601 | |||
Show it | |||
xm list | |||
Attach to it (already done if used -c above) | |||
xm console vm01 | |||
Login as root (no password yet set), set the root password and update. | |||
passwd root | |||
/usr/sbin/base-config | |||
apt-get update | |||
apt-get dist-upgrade | |||
Revision as of 10:35, 27 October 2005
Quick instructions for installing a Debian Sarge VM on Xen
REFERENCE
http://wiki.xensource.com/xenwiki/DebianSarge
PROCEDURE
Prepare your storage. You can use partitions, LVM volumes or simple file-based images. I choose file-based for the flexibility - for a real server you would NOT want to use a file-based because the IO sucks, use real partitions or LVM volumes.
Choosing a suitably large partition (/usr) I linked it into /opt/xen
mkdir /usr/xen ln -s /usr/xen /opt/xen
Bootstrap Debian into a file-based image (note: this is a meager setup of 1GB root / and 128MB swap, you'll likely want much more for a real-world VM)
mkdir -p /opt/xen/domains/vm01 dd if=/dev/zero of=/opt/xen/domains/vm01/diskimage bs=1024k count=1024 dd if=/dev/zero of=/opt/xen/domains/vm01/swapimage bs=1024k count=128 mkfs.ext3 /opt/xen/domains/vm01/diskimage mkswap /opt/xen/domains/vm01/swapimage mkdir /mnt/disk mount -o loop /opt/xen/domains/vm01/diskimage /mnt/disk apt-get install debootstrap #If necessary debootstrap --arch i386 sarge /mnt/disk http://ftp.us.debian.org/debian chroot /mnt/disk /bin/bash cd /etc; vi hostname hosts resolv.conf
Add minimal entries as desired.
Create an /etc/fstab file
/dev/sda1 / ext3 errors=remount-ro 0 1 /dev/sda2 none swap sw 0 0 proc /proc proc defaults 0 0
Logout and unmount /mnt/disk
Now you can setup the first VM (aka vm01)
cat > /etc/xen/vm01.cfg kernel = "/boot/vmlinuz-2.6.10-xenU" memory = 96 name = "vm01" dhcp = "dhcp" disk = [ 'file:/opt/xen/domains/vm01/diskimage,sda1,w','file:/opt/xen/domains/vm01/swapimage,sda2,w' ] root = "/dev/sda1 ro"
Start it
xm create vm01.cfg -c > Using config file "/etc/xen/vm01.cfg". > Started domain vm01, console on port 9601
Show it
xm list
Attach to it (already done if used -c above)
xm console vm01
Login as root (no password yet set), set the root password and update.
passwd root /usr/sbin/base-config apt-get update apt-get dist-upgrade