<div class="gmail_quote">On Fri, Nov 13, 2009 at 5:35 PM, Mr. Teo En Ming (Zhang Enming) <<a href="mailto:space.time.universe@gmail.com">space.time.universe@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div><div></div><div class="h5"> <div class="gmail_quote">On Fri, Nov 13, 2009 at 1:25 PM, Mr. Teo En Ming (Zhang Enming) <<a href="mailto:space.time.universe@gmail.com" target="_blank">space.time.universe@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div><div></div><div> <div class="gmail_quote">On Fri, Nov 13, 2009 at 11:17 AM, Mr. Teo En Ming (Zhang Enming) <<a href="mailto:space.time.universe@gmail.com" target="_blank">space.time.universe@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div class="gmail_quote"><div><div></div><div>On Fri, Nov 13, 2009 at 5:40 AM, Sergey Vlasov <<a href="mailto:vsu@altlinux.ru" target="_blank">vsu@altlinux.ru</a>> wrote: </div></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div><div></div><div> On Fri, Nov 13, 2009 at 12:57:22AM +0800, Mr. Teo En Ming (Zhang Enming) wrote: [...] <div>> # VM 11: Rocks 5.1 x86_64 HPC Compute Cluster HVM domU > > kpartx -av /dev/virtualmachines/rocks0001 > > dd if=/dev/virtualmachines/rocks0001 of=$DEST/rocks0001.mbr bs=512 count=1 > > partimage -d -M -b -z1 save /dev/mapper/virtualmachines-rocks0001p1 > $DEST/virtualmachines-rocks0001p1.img > > partimage -d -M -b -z1 save /dev/mapper/virtualmachines-rocks0001p2 > $DEST/virtualmachines-rocks0001p2.img > > partimage -d -M -b -z1 save /dev/mapper/virtualmachines-rocks0001p5 > $DEST/virtualmachines-rocks0001p5.img </div>Note that this VM (and some other VMs listed in your script) uses logical partitions. In this case just saving a copy of MBR will not be enough to save partition layout - MBR describes only 4 primary partitions, and restoring just MBR will not restore extended partitions. One way to backup the complete partition layout is by saving also the output of "sfdisk -d $device"; the resulting file can be used as input to sfdisk to restore all partitions, including logical ones. Saving MBR is still needed together with sfdisk, because it saves the boot code (used for HVM) and CHS geometry information (which can be used during boot in some cases). </div></div>-----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iEYEARECAAYFAkr8gM8ACgkQW82GfkQfsqLa+QCaAqpO5NWhYHtKVi3M5ytERw27 eC0AnjsJuG34MAR1jZRejBiJCVybQvc1 =RRGH -----END PGP SIGNATURE-----<div> _______________________________________________ Xen-users mailing list <a href="mailto:Xen-users@lists.xensource.com" target="_blank">Xen-users@lists.xensource.com</a> <a href="http://lists.xensource.com/xen-users" target="_blank">http://lists.xensource.com/xen-users</a> </div></blockquote></div> Thank you for pointing this out. Otherwise I would made incomplete backups. Would it be best practice to always backup both the MBR and the partition geometry using sfdisk whenever cloning our harddisks on desktops and servers? Besides sfdisk, there are also other partitioning tools like fdisk, cfdisk, and parted. Could these other tools also be used for backing up the partition geometry like sfdisk? Thank you.<div><div></div><div> -- Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics) BEng(Hons)(Mechanical Engineering) Alma Maters: (1) Singapore Polytechnic (2) National University of Singapore My Primary Blog: <a href="http://teo-en-ming-aka-zhang-enming.blogspot.com" target="_blank">http://teo-en-ming-aka-zhang-enming.blogspot.com</a> My Secondary Blog: <a href="http://enmingteo.wordpress.com" target="_blank">http://enmingteo.wordpress.com</a> My Youtube videos: <a href="http://www.youtube.com/user/enmingteo" target="_blank">http://www.youtube.com/user/enmingteo</a> Email: <a href="mailto:space.time.universe@gmail.com" target="_blank">space.time.universe@gmail.com</a> Mobile Phone (Starhub Prepaid): +65-8369-2618 Street: Bedok Reservoir Road Country: Singapore </div></div></blockquote></div> </div></div>Hi, I have made some improvements to the backup/cloning script. Please help me to vet it through for any mistakes. Thank you very much!<div> <SCRIPT> </div></blockquote></div></div></div></blockquote><div> ***SNIPPED*** </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div><div class="h5"> <div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div></SCRIPT> </div><div><div></div><div>-- Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics) BEng(Hons)(Mechanical Engineering) Alma Maters: (1) Singapore Polytechnic (2) National University of Singapore My Primary Blog: <a href="http://teo-en-ming-aka-zhang-enming.blogspot.com" target="_blank">http://teo-en-ming-aka-zhang-enming.blogspot.com</a> My Secondary Blog: <a href="http://enmingteo.wordpress.com" target="_blank">http://enmingteo.wordpress.com</a> My Youtube videos: <a href="http://www.youtube.com/user/enmingteo" target="_blank">http://www.youtube.com/user/enmingteo</a> Email: <a href="mailto:space.time.universe@gmail.com" target="_blank">space.time.universe@gmail.com</a> Mobile Phone (Starhub Prepaid): +65-8369-2618 Street: Bedok Reservoir Road Country: Singapore </div></div></blockquote></div> </div></div>Hi All, This is the final version of my backup script. I have gone through the script once to make sure there are no mistakes. If I want to capture any errors during the execution of the backup/cloning script, which of the following commands do I run? # ./backup-script.sh > backup.log OR # ./backup-script.sh 2> backup.log After completing the backup script, I will proceed to write the restore script. If there are any errors, please let me know because I do not want to make any mistakes with the cloning process. Thank you. <SCRIPT> ***SNIPPED*** <div><div></div><div class="h5"></SCRIPT> -- Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics) BEng(Hons)(Mechanical Engineering) Alma Maters: (1) Singapore Polytechnic (2) National University of Singapore My Primary Blog: <a href="http://teo-en-ming-aka-zhang-enming.blogspot.com" target="_blank">http://teo-en-ming-aka-zhang-enming.blogspot.com</a> My Secondary Blog: <a href="http://enmingteo.wordpress.com" target="_blank">http://enmingteo.wordpress.com</a> My Youtube videos: <a href="http://www.youtube.com/user/enmingteo" target="_blank">http://www.youtube.com/user/enmingteo</a> Email: <a href="mailto:space.time.universe@gmail.com" target="_blank">space.time.universe@gmail.com</a> Mobile Phone (Starhub Prepaid): +65-8369-2618 Street: Bedok Reservoir Road Country: Singapore </div></div></blockquote></div> Dear All, This is the *initial* version of my data restore script. <SCRIPT> #!/bin/sh ############################################################################################################### ############################################################################################################### # Script to Restore Xen Host/Dom0 and all DomUs which are using Logical Volumes as Virtual Hard Disks ############################################################################################################### ############################################################################################################### # Written by: # Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics) BEng(Hons)(Mechanical Engineering) # Alma Maters: # (1) Singapore Polytechnic # (2) National University of Singapore # Primary Blog: <a href="http://teo-en-ming-aka-zhang-enming.blogspot.com">http://teo-en-ming-aka-zhang-enming.blogspot.com</a> # Secondary Blog: <a href="http://enmingteo.wordpress.com">http://enmingteo.wordpress.com</a> # Youtube Videos: <a href="http://www.youtube.com/user/enmingteo">http://www.youtube.com/user/enmingteo</a> # Xen Tutorials and Video Demos: <a href="http://www.xen.org/support/tutorial.html">http://www.xen.org/support/tutorial.html</a> # Email: <a href="mailto:space.time.universe@gmail.com">space.time.universe@gmail.com</a> # MSN: <a href="mailto:teoenming@hotmail.com">teoenming@hotmail.com</a> # Mobile Phone (Starhub Prepaid): +65-8369-2618 # Street: Bedok Reservoir Road # Country: Singapore # First written: 13 November 2009 Friday 6:49 P.M. Singapore time # Last updated: 13 November 2009 Friday 8:25 P.M. Singapore time # REFERNCE: "Geek Sheet: Bare-metal backup and recovery", May 7th, 2008, Jason Perlow # URL: <a href="http://blogs.zdnet.com/BTL/?p=8759">http://blogs.zdnet.com/BTL/?p=8759</a> # Usage Instructions: # Boot up your desktop/server with System Rescue CD version 1.3.2 for i386/amd64. # Then execute this restore script. You need to adapt this script to work for your environment. # Download System Rescue CD from <a href="http://www.sysresccd.org/Main_Page">http://www.sysresccd.org/Main_Page</a> # No. of QC Checks Performed on this restore script: 0 ############################################################################################################### # Declare Variables ############################################################################################################### HARDDISK=/dev/sda SOURCE=/media/hitachi/test ############################################################################################################### ############################################################################################################### # Restoring Xen Host/Dom0 ############################################################################################################### ############################################################################################################### # Restore the Master Boot Record dd if=$SOURCE/f11-xen-dom0-sda.mbr of=$HARDDISK bs=512 count=1 # Restore the Partition Geometry sfdisk $HARDDISK < $SOURCE/f11-xen-dom0-partition-geometry-sda.sfdisk # Re-create the LVM2 PV containing the host operating system/dom0 pvcreate --uuid ??? /dev/sda2 # Re-create the LVM2 PV containing all the virtual machines pvcreate --uuid ??? /dev/sda3 # Restore the LVM2 metadata for the volume group containing the host operating system/dom0 vgcfgrestore --file $SOURCE/vg_fedora11_host-vgcfg.lvm2.metadata vg_fedora11_host # Restore the LVM2 metadata for the volume group containing all the virtual machines vgcfgrestore --file $SOURCE/virtualmachines-vgcfg.lvm2.metadata virtualmachines # Activate all the volume groups vgchange -ay # Restore all filesystems for the host operating system/dom0 fsarchiver restfs -v $SOURCE/f11-xen-dom0-filesystems.fsa id=0,dest=/dev/sda1 \ id=1,dest=/dev/vg_fedora11_host/lv_home \ id=2,dest=/dev/vg_fedora11_host/lv_root \ id=3,dest=/dev/vg_fedora11_host/lv_var # Re-create the swap partition mkswap /dev/vg_fedora11_host/lv_swap ############################################################################################################### ############################################################################################################### # Restoring Xen-based Virtual Machines/DomUs/Guest Operating Systems/VMs ############################################################################################################### ############################################################################################################### ### NOTE: Check for swap partitions in each virtual machine and do a mkswap. # VM 1: Fedora 11 x86_64 PV domU (MPICH2 Virtual Supercomputer Center) ############################################################################################################### zcat $SOURCE/virtualmachines-f11-pv-hpc-node0001.img.gz | dd of=/dev/virtualmachines/f11-pv-hpc-node0001 # VM 2: Fedora 11 x86_64 PV domU (MPICH2 Virtual Supercomputer Center) ############################################################################################################### zcat $SOURCE/virtualmachines-f11-pv-hpc-node0002.img.gz | dd of=/dev/virtualmachines/f11-pv-hpc-node0002 # VM 3: Fedora 11 x86_64 PV domU (MPICH2 Virtual Supercomputer Center) ############################################################################################################### zcat $SOURCE/virtualmachines-f11-pv-hpc-node0003.img.gz | dd of=/dev/virtualmachines/f11-pv-hpc-node0003 # VM 4: Fedora 11 x86_64 PV domU (MPICH2 Virtual Supercomputer Center) ############################################################################################################### zcat $SOURCE/virtualmachines-f11-pv-hpc-node0004.img.gz | dd of=/dev/virtualmachines/f11-pv-hpc-node0004 # VM 5: Fedora 11 x86_64 PV domU (MPICH2 Virtual Supercomputer Center) ############################################################################################################### zcat $SOURCE/virtualmachines-f11-pv-hpc-node0005.img.gz | dd of=/dev/virtualmachines/f11-pv-hpc-node0005 # VM 6: Fedora 11 x86_64 PV domU (MPICH2 Virtual Supercomputer Center) ############################################################################################################### zcat $SOURCE/virtualmachines-f11-pv-hpc-node0006.img.gz | dd of=/dev/virtualmachines/f11-pv-hpc-node0006 # VM 7: Fedora 11 x86_64 PV domU (MPICH2 Virtual Supercomputer Center) ############################################################################################################### zcat $SOURCE/virtualmachines-f11-pv-hpc-node0007.img.gz | dd of=/dev/virtualmachines/f11-pv-hpc-node0007 # VM 8: Fedora 11 x86_64 PV domU (MPICH2 Virtual Supercomputer Center) ############################################################################################################### zcat $SOURCE/virtualmachines-f11-pv-hpc-node0008.img.gz | dd of=/dev/virtualmachines/f11-pv-hpc-node0008 # VM 9: FreeBSD 8.0 RC2 UNIX amd64 HVM domU ############################################################################################################### zcat $SOURCE/virtualmachines-freebsd.img.gz | dd of=/dev/virtualmachines/freebsd # VM 10: OpenSolaris 2009.06 UNIX amd64 PV domU ############################################################################################################### zcat $SOURCE/virtualmachines-opensolaris.img.gz | dd of=/dev/virtualmachines/opensolaris # VM 11: Rocks 5.1 x86_64 HPC Compute Cluster HVM domU (based on CentOS 5.2) ############################################################################################################### # Add partition mappings in /dev/mapper kpartx -av /dev/virtualmachines/rocks0001 # Restore MBR dd if=$SOURCE/virtualmachines-rocks0001.mbr of=/dev/virtualmachines/rocks0001 bs=512 count=1 # Restore partition geometry sfdisk /dev/virtualmachines/rocks0001 < $SOURCE/virtualmachines-rocks0001.sfdisk # Restore all filesystems partimage -e -b restore /dev/mapper/virtualmachines-rocks0001p1 $SOURCE/virtualmachines-rocks0001p1.img.000 partimage -e -b restore /dev/mapper/virtualmachines-rocks0001p2 $SOURCE/virtualmachines-rocks0001p2.img.000 partimage -e -b restore /dev/mapper/virtualmachines-rocks0001p5 $SOURCE/virtualmachines-rocks0001p5.img.000 # Delete partition mappings in /dev/mapper kpartx -dv /dev/virtualmachines/rocks0001 # VM 12: Rocks 5.1 x86_64 HPC Compute Cluster HVM domU (based on CentOS 5.2) ############################################################################################################### # Add partition mappings in /dev/mapper kpartx -av /dev/virtualmachines/rocks0002 # Restore MBR dd if=$SOURCE/virtualmachines-rocks0002.mbr of=/dev/virtualmachines/rocks0002 bs=512 count=1 # Restore partition geometry sfdisk /dev/virtualmachines/rocks0002 < $SOURCE/virtualmachines-rocks0002.sfdisk # Restore all filesystems partimage -e -b restore /dev/mapper/virtualmachines-rocks0002p1 $SOURCE/virtualmachines-rocks0002p1.img.000 partimage -e -b restore /dev/mapper/virtualmachines-rocks0002p2 $SOURCE/virtualmachines-rocks0002p2.img.000 partimage -e -b restore /dev/mapper/virtualmachines-rocks0002p5 $SOURCE/virtualmachines-rocks0002p5.img.000 # Delete partition mappings in /dev/mapper kpartx -dv /dev/virtualmachines/rocks0002 # VM 13: Rocks 5.1 x86_64 HPC Compute Cluster HVM domU (based on CentOS 5.2) ############################################################################################################### # Add partition mappings in /dev/mapper kpartx -av /dev/virtualmachines/rocks0003 # Restore MBR dd if=$SOURCE/virtualmachines-rocks0003.mbr of=/dev/virtualmachines/rocks0003 bs=512 count=1 # Restore partition geometry sfdisk /dev/virtualmachines/rocks0003 < $SOURCE/virtualmachines-rocks0003.sfdisk # Restore all filesystems partimage -e -b restore /dev/mapper/virtualmachines-rocks0003p1 $SOURCE/virtualmachines-rocks0003p1.img.000 partimage -e -b restore /dev/mapper/virtualmachines-rocks0003p2 $SOURCE/virtualmachines-rocks0003p2.img.000 partimage -e -b restore /dev/mapper/virtualmachines-rocks0003p5 $SOURCE/virtualmachines-rocks0003p5.img.000 # Delete partition mappings in /dev/mapper kpartx -dv /dev/virtualmachines/rocks0003 # VM 14: Rocks 5.1 x86_64 HPC Compute Cluster HVM domU (based on CentOS 5.2) ############################################################################################################### # Add partition mappings in /dev/mapper kpartx -av /dev/virtualmachines/rocks0004 # Restore MBR dd if=$SOURCE/virtualmachines-rocks0004.mbr of=/dev/virtualmachines/rocks0004 bs=512 count=1 # Restore partition geometry sfdisk /dev/virtualmachines/rocks0004 < $SOURCE/virtualmachines-rocks0004.sfdisk # Restore all filesystems partimage -e -b restore /dev/mapper/virtualmachines-rocks0004p1 $SOURCE/virtualmachines-rocks0004p1.img.000 partimage -e -b restore /dev/mapper/virtualmachines-rocks0004p2 $SOURCE/virtualmachines-rocks0004p2.img.000 partimage -e -b restore /dev/mapper/virtualmachines-rocks0004p5 $SOURCE/virtualmachines-rocks0004p5.img.000 # Delete partition mappings in /dev/mapper kpartx -dv /dev/virtualmachines/rocks0004 # VM 15: Rocks 5.1 x86_64 HPC Compute Cluster HVM domU (based on CentOS 5.2) ############################################################################################################### # Add partition mappings in /dev/mapper kpartx -av /dev/virtualmachines/rocks0005 # Restore MBR dd if=$SOURCE/virtualmachines-rocks0005.mbr of=/dev/virtualmachines/rocks0005 bs=512 count=1 # Restore partition geometry sfdisk /dev/virtualmachines/rocks0005 < $SOURCE/virtualmachines-rocks0005.sfdisk # Restore all filesystems partimage -e -b restore /dev/mapper/virtualmachines-rocks0005p1 $SOURCE/virtualmachines-rocks0005p1.img.000 partimage -e -b restore /dev/mapper/virtualmachines-rocks0005p2 $SOURCE/virtualmachines-rocks0005p2.img.000 partimage -e -b restore /dev/mapper/virtualmachines-rocks0005p5 $SOURCE/virtualmachines-rocks0005p5.img.000 # Delete partition mappings in /dev/mapper kpartx -dv /dev/virtualmachines/rocks0005 # VM 16: Slackware64 13.0 amd64 HVM domU ############################################################################################################### # Add partition mappings in /dev/mapper kpartx -av /dev/virtualmachines/slackware64 # Restore MBR dd if=$SOURCE/virtualmachines-slackware64.mbr of=/dev/virtualmachines/slackware64 bs=512 count=1 # Restore partition geometry sfdisk /dev/virtualmachines/slackware64 < $SOURCE/virtualmachines-slackware64.sfdisk # Restore all filesystems partimage -e -b restore /dev/mapper/virtualmachines-slackware64p1 $SOURCE/virtualmachines-slackware64p1.img.000 partimage -e -b restore /dev/mapper/virtualmachines-slackware64p2 $SOURCE/virtualmachines-slackware64p2.img.000 # Delete partition mappings in /dev/mapper kpartx -dv /dev/virtualmachines/slackware64 # VM 17: Ubuntu 9.10 Karmic Koala Linux HVM domU ############################################################################################################### # Add partition mappings in /dev/mapper kpartx -av /dev/virtualmachines/ubuntu910 # Restore MBR dd if=$SOURCE/virtualmachines-ubuntu910.mbr of=/dev/virtualmachines/ubuntu910 bs=512 count=1 # Restore partition geometry sfdisk /dev/virtualmachines/ubuntu910 < $SOURCE/virtualmachines-ubuntu910.sfdisk # Restore all filesystems partimage -e -b restore /dev/mapper/virtualmachines-ubuntu910p1 $SOURCE/virtualmachines-ubuntu910p1.img.000 # Delete partition mappings in /dev/mapper kpartx -dv /dev/virtualmachines/ubuntu910 # VM 18: Windows XP Home Edition SP3 32-bit HVM domU with VGA passthrough (requires Intel VT-d) ############################################################################################################### # Add partition mappings in /dev/mapper kpartx -av /dev/virtualmachines/winxphome32 # Restore MBR dd if=$SOURCE/virtualmachines-winxphome32.mbr of=/dev/virtualmachines/winxphome32 bs=512 count=1 # Restore partition geometry sfdisk /dev/virtualmachines/winxphome32 < $SOURCE/virtualmachines-winxphome32.sfdisk # Restore all filesystems partimage -e -b restore /dev/mapper/virtualmachines-winxphome32p1 $SOURCE/virtualmachines-winxphome32p1.img.000 # Delete partition mappings in /dev/mapper kpartx -dv /dev/virtualmachines/winxphome32 ############################################################################################################### ############################################################################################################### # Deactivate Logical Volume Manager vgchange -an # Sync filesystems sync # Reboot the machine reboot ############################################################################################################### # EOF ############################################################################################################### </SCRIPT> -- Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics) BEng(Hons)(Mechanical Engineering) Alma Maters: (1) Singapore Polytechnic (2) National University of Singapore My Primary Blog: <a href="http://teo-en-ming-aka-zhang-enming.blogspot.com">http://teo-en-ming-aka-zhang-enming.blogspot.com</a> My Secondary Blog: <a href="http://enmingteo.wordpress.com">http://enmingteo.wordpress.com</a> My Youtube videos: <a href="http://www.youtube.com/user/enmingteo">http://www.youtube.com/user/enmingteo</a> Email: <a href="mailto:space.time.universe@gmail.com">space.time.universe@gmail.com</a> Mobile Phone (Starhub Prepaid): +65-8369-2618 Street: Bedok Reservoir Road Country: Singapore