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Revision as of 09:32, 22 May 2012
How to create a Freebsd root-file-system for VNX
Contents
Basic installation
- Create the filesystem disk image:
qemu-img create -f qcow2 vnx_rootfs_kvm_freebsd.qcow2 8GB
wget ftp://ftp.freebsd.org/pub/FreeBSD/releases/i386/i386/ISO-IMAGES/9.0/FreeBSD-9.0-RELEASE-i386-disc1.iso cp FreeBSD-9.0-RELEASE-i386-disc1.iso /almacen/iso
vnx --create-rootfs vnx_rootfs_kvm_freebsd.qcow2 --install-media /almacen/iso/FreeBSD-9.0-RELEASE-i386-disc1.iso --mem 512M
ttyu0 "/usr/libexec/getty std.9600" dialup off secure
to:
ttyu0 "/usr/libexec/getty std.9600" vt100 on secure
echo "-Dh" > /boot.config echo 'boot_multicons="YES"' >> /boot/loader.conf echo 'boot_serial="YES"' >> /boot/loader.conf echo 'console="comconsole,vidconsole"' >> /boot/loader.conf
halt -p
Configuration
- Install bash and change package repository:
pkg_add -r bash pw usermod root -s /usr/local/bin/bash pw usermod vnx -s /usr/local/bin/bash echo "export PACKAGEROOT=ftp://ftp.es.freebsd.org" > ~/.bash_profile
pkg_add -r perl p5-libxml-enno
ifconfig_re0="DHCP"
- From the host execute:
/usr/share/vnx/bin/vnx_update_aced Freebsd /usr/share/vnx/aced/vnx-aced-lf-0.1b.tgz
mount /cdrom /cdrom/install_vnxdaemon
PermitRootLogin yes
export LANG=es_ES.UTF-8 export LC_ALL=es_ES.UTF-8
- Install packages needed:
pkg_add -r xorg-minimal gnome2-lite gdm detach xeyes xhost wmctrl
gnome_enable="YES"
proc /proc procfs rw 0 0
autoboot_delay="3"
pw usermod vnx -G wheel
http://www.freebsd.org/gnome/docs/faq2.html#q23
VER=v0.21 OS=FreeBSD 8.2 DESC=Basic FreeBSD 8.2 root filesystem without GUI
#!/usr/local/bin/bash # Delete /etc/resolv.conf rm -f /etc/resolv.conf # Clean command history rm -f /root/.bash_history # Delete VNXACE log rm -f /var/log/vnxaced.log while true; do # Ask for a message to save in /etc/vnx_rootfs_version file echo "** Save a log message in /etc/vnx_rootfs_version file " echo -n "** describing the modifications done? " read -n 1 -p "[y/n] " answer echo "" case $answer in [Yy]* ) echo "** Log message (1 line maximum):" read logmsg DATE=`date` echo "MODDATE=$DATE" >> /etc/vnx_rootfs_version echo "MODDESC=$logmsg" >> /etc/vnx_rootfs_version break;; [Nn]* ) break;; * ) echo "** Error: please answer 'y' or 'n'.";; esac done # Halt the system halt -p
chmod +x /usr/local/bin/vnx_halt
vnx_halt
If everything went well, your root filesystem will be ready to be used with VNX. You can make a simple test using the simple_freebsd.xml scenario distributed with VNX.
Note: after installing gnome, you probaly will get the following error message on the console:
acd0: FAILURE - unknown CMD (0x03) ILLEGAL REQUEST asc=0x20 ascq=0x00
To eliminate them you can execute:
hal-disable-polling --device /dev/acd0
Installing additional software
To install additional software or to modify your root file system, you just have to:
- Start a virtual machine from it:
vnx --modify-rootfs vnx_rootfs_kvm_fedora.qcow2
dhclient eth1
Note: use "ip link show" to know which network interface to use.
vnx_halt
Updating VNXACED
You can automatically update the VNXACE daemon with the following command:
vnx --modify-rootfs vnx_rootfs_kvm_fedora.qcow2 --update-aced -y
Installing additional software
To install additional software or modify your root file system, you just have to start it as described above and:
- Configure network interface with:
dhclient re0
pkg_add -r apache22
halt -p
Updating ACE daemon
If you have a root filesystem with the autoconfiguration and command execution daemon (ACE) already installed, you can use the autoupdate functionallity to update the daemon to a newer version. Just follow this procedure:
- Edit the xml described above and comment the line defining the Freebsd iso file for the cdrom:
- Start the virtual machine (directly using virsh or the vnx_modify_rootfs utility):
/usr/share/vnx/bin/vnx_modify_rootfs rootfs_freebsd.xml
- Execute the update utility:
/usr/share/vnx/bin/vnx_update_aced Freebsd /usr/share/vnx/aced/vnx-aced-lf-0.1b.tgz
- Once the ace daemon is updated the virtual machine will be rebooted automatically.