Re: [VBox-users] Avantquest sell Virtualbox for £30 - is that allowed?
OpenOffice was not superseded by LibreOffice. OpenOffice was gifted to Apache 1 June 2011 and is a top level project as of 17 October 2012. http://openoffice.apache.org/ On 04/ 6/13 09:11 AM, vbox-users wrote: StarOffice? Seriously? How long as it been since StarOffice was superseded by OpenOffice, and subsequently LibreOffice? -- Minimize network downtime and maximize team effectiveness. Reduce network management and security costs.Learn how to hire the most talented Cisco Certified professionals. Visit the Employer Resources Portal http://www.cisco.com/web/learning/employer_resources/index.html ___ VBox-users-community mailing list VBox-users-community@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/vbox-users-community ___ Unsubscribe: mailto:vbox-users-community-requ...@lists.sourceforge.net?subject=unsubscribe
Re: [VBox-users] Consistent vdi image during guest runtime?
On Sat, 06 Apr 2013 14:32:34 -0700 Geoff Nordli geo...@gnaa.net wrote: On 13-04-06 01:46 PM, Stephan von Krawczynski wrote: On Sat, 06 Apr 2013 10:50:13 -0700 Geoff Nordli geo...@gnaa.net wrote: I would say that the vbox snapshots are not the path you want to take for backups. VBox snapshots are great when experimenting with software, or creating a library using a base images. If you do a VBox snapshot online, then you also have a .sav file, and you have to wait for the save/resume to complete before it can come back online. If you can afford downtime, then I would power off the VM to get a consistent state of your data. Other people may be able to chime in here, but if you looking at using it for backups, then pausing the machine, and using LVM may be something that works, because after you take the backup, you delete the lvm snapshot. You will need to delete the backup though because LVM doesn't scale well for snapshots. In the past I used LVM and raw disks to do this. Geoff Hm, but your script does suspend/resume the vm, too. I cannot see a big difference to a vm snapshot ... ? The script uses the virsh suspend command which just pauses the VM temporarily until it is resumed, which is pretty much instant. http://www.centos.org/docs/5/html/5.2/Virtualization/chap-Virtualization-Managing_guests_with_virsh.html Whereas the vbox savestate when doing a snapshot takes a lot longer, because it writes out the active memory to a saved state file. Well, if you only suspend the guest, then take a backup from the vdi (with whatever method) you will not end up in a consistent backup. Think of a mysql database where you just suspended the guest right in between some write action. your database file has a good chance to be corrupted that way. On the other hand, if you take a snapshot of the guest and backup this chances are better you'll be able to resume the guest later on during restore, not? -- Regards, Stephan -- Minimize network downtime and maximize team effectiveness. Reduce network management and security costs.Learn how to hire the most talented Cisco Certified professionals. Visit the Employer Resources Portal http://www.cisco.com/web/learning/employer_resources/index.html ___ VBox-users-community mailing list VBox-users-community@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/vbox-users-community ___ Unsubscribe: mailto:vbox-users-community-requ...@lists.sourceforge.net?subject=unsubscribe
Re: [VBox-users] Consistent vdi image during guest runtime?
From: Stephan von Krawczynski [mailto:sk...@ithnet.com] I feel a need to be more precise on the true nature of the question. My intention is not only to have a consistent vdi image, but also to have a consistent backup of the virtual guest. With zfs, you snapshot, and then zfs send to another computer. Works great. Only the incrementally changed blocks between the last snapshot and present snapshot need be sent. With btrfs, you *should* be able to do the same thing. But a year ago, there was no btrfs equivalent of zfs send. I hear they have that functionality now, but I haven't tried it yet. With LVM, you make the snapshot, then mount the snapshot filesystem, and copy the file. Unfortunately, you'll need to copy the whole file. I said earlier in this thread, switch to something zfs-based until you're satisfied with btrfs. That, or run backup software inside the guest. Before I tried virtualbox, I ran ESX, with opensolaris guest inside it, which then exported storage back to ESX host, where ESX would then create additional VM's. -- Minimize network downtime and maximize team effectiveness. Reduce network management and security costs.Learn how to hire the most talented Cisco Certified professionals. Visit the Employer Resources Portal http://www.cisco.com/web/learning/employer_resources/index.html ___ VBox-users-community mailing list VBox-users-community@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/vbox-users-community ___ Unsubscribe: mailto:vbox-users-community-requ...@lists.sourceforge.net?subject=unsubscribe
Re: [VBox-users] Consistent vdi image during guest runtime?
On 13-04-07 03:00 AM, Stephan von Krawczynski wrote: On Sat, 06 Apr 2013 14:32:34 -0700 Geoff Nordli geo...@gnaa.net wrote: On 13-04-06 01:46 PM, Stephan von Krawczynski wrote: On Sat, 06 Apr 2013 10:50:13 -0700 Geoff Nordli geo...@gnaa.net wrote: I would say that the vbox snapshots are not the path you want to take for backups. VBox snapshots are great when experimenting with software, or creating a library using a base images. If you do a VBox snapshot online, then you also have a .sav file, and you have to wait for the save/resume to complete before it can come back online. If you can afford downtime, then I would power off the VM to get a consistent state of your data. Other people may be able to chime in here, but if you looking at using it for backups, then pausing the machine, and using LVM may be something that works, because after you take the backup, you delete the lvm snapshot. You will need to delete the backup though because LVM doesn't scale well for snapshots. In the past I used LVM and raw disks to do this. Geoff Hm, but your script does suspend/resume the vm, too. I cannot see a big difference to a vm snapshot ... ? The script uses the virsh suspend command which just pauses the VM temporarily until it is resumed, which is pretty much instant. http://www.centos.org/docs/5/html/5.2/Virtualization/chap-Virtualization-Managing_guests_with_virsh.html Whereas the vbox savestate when doing a snapshot takes a lot longer, because it writes out the active memory to a saved state file. Well, if you only suspend the guest, then take a backup from the vdi (with whatever method) you will not end up in a consistent backup. Think of a mysql database where you just suspended the guest right in between some write action. your database file has a good chance to be corrupted that way. On the other hand, if you take a snapshot of the guest and backup this chances are better you'll be able to resume the guest later on during restore, not? Yes, with LVM, I would prepare any hot applications for backup just to make sure. Note, pausing the disk will flush vbox cache: https://www.virtualbox.org/pipermail/vbox-dev/2011-June/004207.html For my MySQL maybe something like this: http://www.lenzg.net/mylvmbackup/ where they put a read lock on all the tables, and flush the cache. For windows you want to use VSS. You can execute scripts inside a guest os using guestcontrol, or use SSH before you pause the host. I am worried less about corruption with ZFS because it writes data in transaction groups and uses a COW format so data is never overwritten. Another note, you want to make sure you disable the ignoreflush: http://www.virtualbox.org/manual/ch12.html#idp20230944 -- Minimize network downtime and maximize team effectiveness. Reduce network management and security costs.Learn how to hire the most talented Cisco Certified professionals. Visit the Employer Resources Portal http://www.cisco.com/web/learning/employer_resources/index.html ___ VBox-users-community mailing list VBox-users-community@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/vbox-users-community ___ Unsubscribe: mailto:vbox-users-community-requ...@lists.sourceforge.net?subject=unsubscribe
Re: [VBox-users] software virtualization on older 32 bit systems
Date: Fri, 5 Apr 2013 15:32:37 -0300 From: Leonardo Carneiro chesterma...@gmail.com Subject: Re: [VBox-users] software virtualization on older 32 bit systems To: Community mailing list of VirtualBox users vbox-users-community@lists.sourceforge.net Message-ID: CAP5xjbuME8OHUW=q=zrh+wxw8rdfbhuvipfx5qbpdrdvjd7...@mail.gmail.com Content-Type: text/plain; charset=utf-8 Give vboxheadless a try =) http://www.virtualbox.org/manual/ch07.html -- Leonardo, Thank you for your reply and I greatly appreciate the link. I had considered using vbox-headless but wasn't sure that would achieve my goal. Further reading of Ch 7 indicates it may work for at least one of my VM's. My project involves building Speakup into the Ubuntu debian installer. The remote display doesn't really matter but remote audio from the VM is critical to the success of my project. At the very least I should be able to confirm whether the VMs work or not. Thank You, Jeff -- Minimize network downtime and maximize team effectiveness. Reduce network management and security costs.Learn how to hire the most talented Cisco Certified professionals. Visit the Employer Resources Portal http://www.cisco.com/web/learning/employer_resources/index.html ___ VBox-users-community mailing list VBox-users-community@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/vbox-users-community ___ Unsubscribe: mailto:vbox-users-community-requ...@lists.sourceforge.net?subject=unsubscribe
Re: [VBox-users] software virtualization on older 32 bit systems
Date: Fri, 05 Apr 2013 20:39:06 +0200 From: jdd j...@dodin.org Subject: Re: [VBox-users] software virtualization on older 32 bit systems To: vbox-users-community@lists.sourceforge.net Message-ID: 515f1a4a.50...@dodin.org Content-Type: text/plain; charset=ISO-8859-15; format=flowed Le 05/04/2013 19:53, Jeffrey Malewski a ?crit : Hello everyone, My main interest in Virtualbox is for testing iso images without the need to burn to disk. *why don't you open them with mount -o loop? #Please correct me if I'm wrong, but won't that just mount the file system and give me access to the files in the iso? I am working from a base install of Ubuntu Server 12.04 on an older 32 bit system. what is important is the ram. With 2Gb ram, I run easily several virtualbox sessions #I allocated 1gb in my script. Should be plenty for my testing. Having already tried to build a VM using qemu-kvm I've found that my system doesn't support hardware virtualization, only slow down the result a bit #Slowing of the system in the VM isn't a concern. The iso's I'm testing are a modification of the Ubuntu debian installer incorporating Speakup. All I need to do is demonstrate that Speakup starts when the installer starts. bash script to create my VMs from iso images. creating a vbox with vbowmanage is possible but unfriendly. If you have any X system on the host, using the gui just to crate the vm is pretty easy #I had more than a few errors while developing the script. The last was bridging the nic to the host nic. It sure would have been easier from gui. I'm saving that as last resort. If vbox-headless doesn't work out I'll probably install Gnome. and it's not necessary to have an X system on the guest this (http://www.culte.org/) web site run on a virtual machine on a host like yours #I'll keep that in mind. I greatly appreciate your help. Jeff jdd -- http://www.dodin.org -- Minimize network downtime and maximize team effectiveness. Reduce network management and security costs.Learn how to hire the most talented Cisco Certified professionals. Visit the Employer Resources Portal http://www.cisco.com/web/learning/employer_resources/index.html ___ VBox-users-community mailing list VBox-users-community@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/vbox-users-community ___ Unsubscribe: mailto:vbox-users-community-requ...@lists.sourceforge.net?subject=unsubscribe
Re: [VBox-users] software virtualization on older 32 bit systems
On Sun, Apr 07, 2013 at 09:19:35PM -0400, Jeffrey Malewski wrote: project involves building Speakup into the Ubuntu debian installer. The remote display doesn't really matter but remote audio from the VM is critical to the success of my project. At the very least I should be able to confirm whether the VMs work or not. That should be no problem. I was able to run both speakup and orca on a headless guest using vrdp. It was a bit sluggish, but that shouldn't be a big deal if all you're doing is testing. You can connect to it with both the Microsoft rdp client on a windows box, and rdesktop on a gnu/linux box. However, be aware that once you start rdesktop, it grabs total keyboard access, and the only way I know of to get back out when using it with the virtualbox vrdp server is to halt the guest. Good luck. Though I use debian here happily, I think it would be great if speakup got put back into ubuntu. Greg -- web site: http://www.gregn.net gpg public key: http://www.gregn.net/pubkey.asc skype: gregn1 (authorization required, add me to your contacts list first) -- Free domains: http://www.eu.org/ or mail dns-mana...@eu.org -- Minimize network downtime and maximize team effectiveness. Reduce network management and security costs.Learn how to hire the most talented Cisco Certified professionals. Visit the Employer Resources Portal http://www.cisco.com/web/learning/employer_resources/index.html ___ VBox-users-community mailing list VBox-users-community@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/vbox-users-community ___ Unsubscribe: mailto:vbox-users-community-requ...@lists.sourceforge.net?subject=unsubscribe
Re: [VBox-users] software virtualization on older 32 bit systems
Le 08/04/2013 04:24, Jeffrey Malewski a écrit : #I'll keep that in mind. I greatly appreciate your help. :-) don't forget we speak of virtual machines, here, you can create them elsewhere and copy them to the final host (I did it like this when creating it for the first time) jdd -- http://www.dodin.org -- Minimize network downtime and maximize team effectiveness. Reduce network management and security costs.Learn how to hire the most talented Cisco Certified professionals. Visit the Employer Resources Portal http://www.cisco.com/web/learning/employer_resources/index.html ___ VBox-users-community mailing list VBox-users-community@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/vbox-users-community ___ Unsubscribe: mailto:vbox-users-community-requ...@lists.sourceforge.net?subject=unsubscribe
