On Fri, Nov 13, 2009 at 5:35 PM, Mr. Teo En Ming (Zhang Enming) < [email protected]> wrote:
> > > On Fri, Nov 13, 2009 at 1:25 PM, Mr. Teo En Ming (Zhang Enming) < > [email protected]> wrote: > >> >> >> On Fri, Nov 13, 2009 at 11:17 AM, Mr. Teo En Ming (Zhang Enming) < >> [email protected]> wrote: >> >>> >>> >>> On Fri, Nov 13, 2009 at 5:40 AM, Sergey Vlasov <[email protected]> wrote: >>> >>>> On Fri, Nov 13, 2009 at 12:57:22AM +0800, Mr. Teo En Ming (Zhang Enming) >>>> wrote: >>>> [...] >>>> > # 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 >>>> >>>> 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). >>>> >>>> -----BEGIN PGP SIGNATURE----- >>>> Version: GnuPG v1.4.10 (GNU/Linux) >>>> >>>> iEYEARECAAYFAkr8gM8ACgkQW82GfkQfsqLa+QCaAqpO5NWhYHtKVi3M5ytERw27 >>>> eC0AnjsJuG34MAR1jZRejBiJCVybQvc1 >>>> =RRGH >>>> -----END PGP SIGNATURE----- >>>> >>>> >>>> _______________________________________________ >>>> Xen-users mailing list >>>> [email protected] >>>> http://lists.xensource.com/xen-users >>>> >>> >>> >>> >>> 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. >>> >>> >>> -- >>> 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: http://teo-en-ming-aka-zhang-enming.blogspot.com >>> My Secondary Blog: http://enmingteo.wordpress.com >>> My Youtube videos: http://www.youtube.com/user/enmingteo >>> Email: [email protected] >>> Mobile Phone (Starhub Prepaid): +65-8369-2618 >>> Street: Bedok Reservoir Road >>> Country: Singapore >>> >> >> 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! >> >> >> <SCRIPT> >> > ***SNIPPED*** > </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: http://teo-en-ming-aka-zhang-enming.blogspot.com >> My Secondary Blog: http://enmingteo.wordpress.com >> My Youtube videos: http://www.youtube.com/user/enmingteo >> Email: [email protected] >> Mobile Phone (Starhub Prepaid): +65-8369-2618 >> Street: Bedok Reservoir Road >> Country: Singapore >> > > 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*** > </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: http://teo-en-ming-aka-zhang-enming.blogspot.com > My Secondary Blog: http://enmingteo.wordpress.com > My Youtube videos: http://www.youtube.com/user/enmingteo > Email: [email protected] > Mobile Phone (Starhub Prepaid): +65-8369-2618 > Street: Bedok Reservoir Road > Country: Singapore > 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: http://teo-en-ming-aka-zhang-enming.blogspot.com # Secondary Blog: http://enmingteo.wordpress.com # Youtube Videos: http://www.youtube.com/user/enmingteo # Xen Tutorials and Video Demos: http://www.xen.org/support/tutorial.html # Email: [email protected] # MSN: [email protected] # 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: http://blogs.zdnet.com/BTL/?p=8759 # 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 http://www.sysresccd.org/Main_Page # 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: http://teo-en-ming-aka-zhang-enming.blogspot.com My Secondary Blog: http://enmingteo.wordpress.com My Youtube videos: http://www.youtube.com/user/enmingteo Email: [email protected] Mobile Phone (Starhub Prepaid): +65-8369-2618 Street: Bedok Reservoir Road Country: Singapore
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