Re: Duplicate existing FreeBSD Server in VM
DAve wrote: Terry Sposato wrote: Hi, I have just installed a machine and have it setup running a web based CRM solution. I want to have an exact duplicate of this machine running as a VM for redundancy reasons. What is the best way to go about getting this exact machine transferred to the VM? Both machines exist on the same network and will be able to talk to each other, I have been thinking of a couple of different ways to get all my data across which is the easy part, but I want to match everything that is installed, base system, ports etc. Anyone have any ideas or point me into the right direction? You can use dump over ssh easily enough, here are my notes from using it to create multiple production machines from a single test server. There are better ways I am sure, but this is quick and easy if you are familiar with FreeBSD installs. Note #1 In the first comment line I say to boot the live file system CD, that is what you would do in the VM, just as you would normally boot an installer CD, but use a Live filesystem CD instead. Note #2 I used several slices with sizes some may not agree with. It was a choice we made for various reasons, the servers have been running for three years. You may have more or less slices of varying sizes, adjust the steps below to your preferences. Note #3 You will need to check and WRITE DOWN which slice is which mount point, /, /var, /usr and so on. Your disks may be different if you choose not to create a seperate /tmp, or /var. I'll be out of the office for a week, but you can try and adjust as needed, it won't hurt anything and you can always overwrite and try again. WRITE IT DOWN. Works for us, I've used it several times, adjusting as needed for the system I am cloning. DAve # boot live filesystem cd # use disklabel to check/create slices /stand/sysinstall /dev/ad0s1b256mb swap /dev/ad0s1a256mb /mnt/ufs.1softupdates /dev/ad0s1e256mb /mnt/ufs.2softupdates /dev/ad0s1d256mb /mnt/ufs.3softupdates /dev/ad0s1fall /mnt/ufs.4softupdates /dev/ad1s1d2mb /mnt/ufs.5 # unmount the new slices umount /mnt/ufs.1 umount /mnt/ufs.2 umount /mnt/ufs.3 umount /mnt/ufs.4 umount /mnt/ufs.5 # make newfs on each slice newnfs /dev/ad0s1a newnfs /dev/ad0s1e newnfs /dev/ad0s1f newnfs /dev/ad0s1d newnfs /dev/ad1s1d # remount the slices mount -t ufs -o rw /dev/ad0s1a /mnt/ufs.1 mount -t ufs -o rw /dev/ad0s1e /mnt/ufs.2 mount -t ufs -o rw /dev/ad0s1d /mnt/ufs.3 mount -t ufs -o rw /dev/ad0s1f /mnt/ufs.4 # fetch the filesystems from the test server # you will need to enable root ssh access on the test server for this. cd /mnt/ufs.1 ssh [EMAIL PROTECTED] dump -0L -f - /dev/ad0s1a | restore -rf - /dev/ad0s1a cd /mnt/ufs.2 ssh [EMAIL PROTECTED] dump -0L -f - /dev/ad0s1e | restore -rf - /dev/ad0s1e cd /mnt/ufs.3 ssh [EMAIL PROTECTED] dump -0L -f - /dev/ad0s1f | restore -rf - /dev/ad0s1f cd /mnt/ufs.4 ssh [EMAIL PROTECTED] dump -0L -f - /dev/ad0s1d | restore -rf - /dev/ad0s1d # change the following entries in rc.conf, remember everything is mounted under /mnt! # X = the ecluster number 1,2,3,4,5,6,7,8, etc. hostname=new_server_X ifconfig_em0=inet 10.0.240.13X netmask 255.255.255.0 Reboot the new server, it should come up just fine. Your instructions is very helpful. When using on 4.11, -L seems not working with dump. Also I have one question, I clone file system from one machine to another different type of machine. The source machine's file system is on /dev/da0s1, but destination's is on /dev/ad0s1. Then I run following to update boot loader: fdisk -B -b /boot/boot0 /dev/ad0 bsdlabel -B /dev/ad0s1 However, the cloned system can't find kernel on reboot. What am I missing? Simon ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Duplicate existing FreeBSD Server in VM
Hi, I have just installed a machine and have it setup running a web based CRM solution. I want to have an exact duplicate of this machine running as a VM for redundancy reasons. What is the best way to go about getting this exact machine transferred to the VM? Both machines exist on the same network and will be able to talk to each other, I have been thinking of a couple of different ways to get all my data across which is the easy part, but I want to match everything that is installed, base system, ports etc. Anyone have any ideas or point me into the right direction? I know I have already asked this question but there is a slight difference, the real server is running FreeBSD 6.2-RELEASE-p8 AMD64 version. The duplicated version which will be running in a VM is only going to be the i386 version. What would be the best way to attack this problem? The stuff that needs to be synced would be a MySQL database along with a website. Everything else probably doesn't matter... Regards, Terry http://www.sucked-in.com Have you been sucked in? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Duplicate existing FreeBSD Server in VM
On Fri, Nov 02, 2007 at 12:46:09PM +1100, Terry Sposato wrote: I have just installed a machine and have it setup running a web based CRM solution. I want to have an exact duplicate of this machine running as a VM for redundancy reasons. The best and easiest way I know of is using /usr/ports/net/rsync for this task. I often used it to move BSD or Linux systems to new hardware or transfer them into a VM. I usually make sure that the kernel supports all important hardware on the target machine and that /etc/fstab is correct. After that I start to transfer filesystem after filesystem with e.g.: # rsync -avxH --delete --exclude /etc/fstab / [EMAIL PROTECTED]:/ You might want to exclude other files (e.g. /etc/rc.conf) from being overwritten, I guess. The nice thing with rsync is that only diffs are transferred, so it would be easy and fast to keep your VM in sync with the source machine. Uwe P.S.: Yesterday I moved a FreeBSD 4.5 system from a Proliant 3000 (~7 years old) to a VMware Server VM using rsync. All I had to take care of was the use of a GENERIC kernel, a new /etc/fstab and a changed ifconfig line in /etc/rc.conf. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Duplicate existing FreeBSD Server in VM
Terry Sposato wrote: What is the best way to go about getting this exact machine transferred to the VM? Both machines exist on the same network and will be able to talk to each other, I have been thinking of a couple of different ways to get all my data across which is the easy part, but I want to match everything that is installed, base system, ports etc. Anyone have any ideas or point me into the right direction? There are a # of ways to skin that cat. Have a look at my Linux P2V page as it describes a process that should work for you. http://mark.foster.cc/wiki/index.php/Linux_P2V -- Said one park ranger, 'There is considerable overlap between the intelligence of the smartest bears and the dumbest tourists.' Mark D. Foster, CISSP [EMAIL PROTECTED] http://mark.foster.cc/ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Duplicate existing FreeBSD Server in VM
Hi, I have just installed a machine and have it setup running a web based CRM solution. I want to have an exact duplicate of this machine running as a VM for redundancy reasons. What is the best way to go about getting this exact machine transferred to the VM? Both machines exist on the same network and will be able to talk to each other, I have been thinking of a couple of different ways to get all my data across which is the easy part, but I want to match everything that is installed, base system, ports etc. Anyone have any ideas or point me into the right direction? Regards, Terry http://www.sucked-in.com Have you been sucked in? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Duplicate existing FreeBSD Server in VM
Terry Sposato wrote: Hi, I have just installed a machine and have it setup running a web based CRM solution. I want to have an exact duplicate of this machine running as a VM for redundancy reasons. What is the best way to go about getting this exact machine transferred to the VM? Both machines exist on the same network and will be able to talk to each other, I have been thinking of a couple of different ways to get all my data across which is the easy part, but I want to match everything that is installed, base system, ports etc. Anyone have any ideas or point me into the right direction? You can use dump over ssh easily enough, here are my notes from using it to create multiple production machines from a single test server. There are better ways I am sure, but this is quick and easy if you are familiar with FreeBSD installs. Note #1 In the first comment line I say to boot the live file system CD, that is what you would do in the VM, just as you would normally boot an installer CD, but use a Live filesystem CD instead. Note #2 I used several slices with sizes some may not agree with. It was a choice we made for various reasons, the servers have been running for three years. You may have more or less slices of varying sizes, adjust the steps below to your preferences. Note #3 You will need to check and WRITE DOWN which slice is which mount point, /, /var, /usr and so on. Your disks may be different if you choose not to create a seperate /tmp, or /var. I'll be out of the office for a week, but you can try and adjust as needed, it won't hurt anything and you can always overwrite and try again. WRITE IT DOWN. Works for us, I've used it several times, adjusting as needed for the system I am cloning. DAve # boot live filesystem cd # use disklabel to check/create slices /stand/sysinstall /dev/ad0s1b256mb swap /dev/ad0s1a256mb /mnt/ufs.1softupdates /dev/ad0s1e256mb /mnt/ufs.2softupdates /dev/ad0s1d256mb /mnt/ufs.3softupdates /dev/ad0s1fall /mnt/ufs.4softupdates /dev/ad1s1d2mb /mnt/ufs.5 # unmount the new slices umount /mnt/ufs.1 umount /mnt/ufs.2 umount /mnt/ufs.3 umount /mnt/ufs.4 umount /mnt/ufs.5 # make newfs on each slice newnfs /dev/ad0s1a newnfs /dev/ad0s1e newnfs /dev/ad0s1f newnfs /dev/ad0s1d newnfs /dev/ad1s1d # remount the slices mount -t ufs -o rw /dev/ad0s1a /mnt/ufs.1 mount -t ufs -o rw /dev/ad0s1e /mnt/ufs.2 mount -t ufs -o rw /dev/ad0s1d /mnt/ufs.3 mount -t ufs -o rw /dev/ad0s1f /mnt/ufs.4 # fetch the filesystems from the test server # you will need to enable root ssh access on the test server for this. cd /mnt/ufs.1 ssh [EMAIL PROTECTED] dump -0L -f - /dev/ad0s1a | restore -rf - /dev/ad0s1a cd /mnt/ufs.2 ssh [EMAIL PROTECTED] dump -0L -f - /dev/ad0s1e | restore -rf - /dev/ad0s1e cd /mnt/ufs.3 ssh [EMAIL PROTECTED] dump -0L -f - /dev/ad0s1f | restore -rf - /dev/ad0s1f cd /mnt/ufs.4 ssh [EMAIL PROTECTED] dump -0L -f - /dev/ad0s1d | restore -rf - /dev/ad0s1d # change the following entries in rc.conf, remember everything is mounted under /mnt! # X = the ecluster number 1,2,3,4,5,6,7,8, etc. hostname=new_server_X ifconfig_em0=inet 10.0.240.13X netmask 255.255.255.0 Reboot the new server, it should come up just fine. -- Three years now I've asked Google why they don't have a logo change for Memorial Day. Why do they choose to do logos for other non-international holidays, but nothing for Veterans? Maybe they forgot who made that choice possible. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
