Difference between revisions of "Backups"
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| − | + | There are two things that I'm doing with backups: | |
| + | # I'm archiving an old machine before I wipe it completely to turn it into a Media Center PC (Using Mythbuntu or LinuxMCE) | ||
| + | # I'm making a full system backup of my notebook before I do a distribution upgrade from Kubuntu 8.4 to Kubuntu 8.10 | ||
| − | == | + | == Backup Software == |
| − | + | For my purposes, I chose [http://www.mondorescue.org/index.html Mondo Rescue] as my tool of choice because it is a very versatile package for complete disaster recovery as well as flexible in the ability to use online storage (e.g. external USB drive). | |
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| − | + | == Archive the old workstation == | |
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These are the disks that I have to preserve by copying the good, throwing away the bad. | These are the disks that I have to preserve by copying the good, throwing away the bad. | ||
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Units = cylinders of 16065 * 512 = 8225280 bytes | Units = cylinders of 16065 * 512 = 8225280 bytes | ||
| − | Device Boot Start End Blocks Id System | + | Device Boot Start End Blocks Id System |
/dev/hda1 * 1 2550 20482843+ 7 HPFS/NTFS | /dev/hda1 * 1 2550 20482843+ 7 HPFS/NTFS | ||
/dev/hda2 2551 2633 666697+ 7 HPFS/NTFS | /dev/hda2 2551 2633 666697+ 7 HPFS/NTFS | ||
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Units = cylinders of 1008 * 512 = 516096 bytes | Units = cylinders of 1008 * 512 = 516096 bytes | ||
| − | Device Boot Start End Blocks Id System | + | Device Boot Start End Blocks Id System |
/dev/hdb1 1 158816 80043232+ 83 Linux | /dev/hdb1 1 158816 80043232+ 83 Linux | ||
</pre> | </pre> | ||
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shows you what file system types are supported under your currently running kernel | shows you what file system types are supported under your currently running kernel | ||
| − | + | == Backups for Disaster Recover == | |
| − | + | So, when it came to using a backup program, I chose Mondo Rescue because it can backup to CD, DVD, disk or other mediums. Plus, it can create a restore | |
| − | + | disk for you which is what I want... in the case of catastrophic system failure, I want to be able to recreate my computer on new hardware. | |
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| − | == | ||
| − | So, when it came to using a backup program, I chose | ||
I have an external USB hard drive with a terabyte of storage that I have mounted at /media/disk | I have an external USB hard drive with a terabyte of storage that I have mounted at /media/disk | ||
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-d /media/disk/backups # write ISOs to this directory \ | -d /media/disk/backups # write ISOs to this directory \ | ||
-s 4420m # make the ISOs 4,420 MB is size (smaller than a DVD) \ | -s 4420m # make the ISOs 4,420 MB is size (smaller than a DVD) \ | ||
| − | -S /media/disk/tmp # write scratch files to this directory | + | -S /media/disk/tmp # write scratch files to this directory |
-T /media/disk/tmp # write temporary files to this directory | -T /media/disk/tmp # write temporary files to this directory | ||
</source> | </source> | ||
| − | At first, the backup failed with a message that it thought my drive was full. But in reality, it was a problem with the tmp partition being too small so then I added the -S and -T options and it worked fine. | + | At first, the backup failed with a message that it thought my drive was full. But in reality, it was a problem with the tmp partition being too small so then I added the -S and -T options and it worked fine. |
This is what mondoarchive said after I used the -T and -S options to do the run | This is what mondoarchive said after I used the -T and -S options to do the run | ||
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</pre> | </pre> | ||
| − | Basically, I have to | + | Basically, I have to |
"reduce your kernel's size" | "reduce your kernel's size" | ||
if I want to create a boot floppy, but it doesn't matter if I want to use a boot ISO instead. | if I want to create a boot floppy, but it doesn't matter if I want to use a boot ISO instead. | ||
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[[Category:Howto]] | [[Category:Howto]] | ||
Revision as of 16:39, 1 November 2008
There are two things that I'm doing with backups:
- I'm archiving an old machine before I wipe it completely to turn it into a Media Center PC (Using Mythbuntu or LinuxMCE)
- I'm making a full system backup of my notebook before I do a distribution upgrade from Kubuntu 8.4 to Kubuntu 8.10
Backup Software[edit | edit source]
For my purposes, I chose Mondo Rescue as my tool of choice because it is a very versatile package for complete disaster recovery as well as flexible in the ability to use online storage (e.g. external USB drive).
Archive the old workstation[edit | edit source]
These are the disks that I have to preserve by copying the good, throwing away the bad.
greg@liberty:~$ sudo fdisk -l Disk /dev/hda: 40.0 GB, 40000020480 bytes 255 heads, 63 sectors/track, 4863 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/hda1 * 1 2550 20482843+ 7 HPFS/NTFS /dev/hda2 2551 2633 666697+ 7 HPFS/NTFS /dev/hda3 2634 2646 104422+ 83 Linux /dev/hda4 2647 4863 17808052+ f W95 Ext'd (LBA) /dev/hda5 2647 4668 16241683+ 83 Linux /dev/hda6 4669 4863 1566306 82 Linux swap / Solaris Disk /dev/hdb: 81.9 GB, 81964302336 bytes 16 heads, 63 sectors/track, 158816 cylinders Units = cylinders of 1008 * 512 = 516096 bytes Device Boot Start End Blocks Id System /dev/hdb1 1 158816 80043232+ 83 Linux
One of the first tasks at hand was to mount my old Windows drive in a way that made it accessible to me (as opposed to read-only to root) Learn more about this at https://help.ubuntu.com/community/AutomaticallyMountPartitions
 |
the file /etc/fstab sets up your file system devices and has started using universally unique identifiers to avoid problems with pluggable external disks. |
You can learn the identifier with the command:
sudo vol_id -u /dev/sda1
But it turns out there is a simpler way of finding out what the volume id is for a disk drive:
ls -l /dev/disk/by-uuid/
total 0
lrwxrwxrwx 1 root root 10 2008-10-21 09:32 05226929-bdde-4a46-af85-01b40827a1f4 -> ../../sda5
lrwxrwxrwx 1 root root 10 2008-10-21 09:32 8e46d1ff-5f34-46b1-a51a-0dac169123b7 -> ../../sdb1
lrwxrwxrwx 1 root root 10 2008-10-21 09:32 c82c1eb4-439c-4982-8764-ac207d4f9622 -> ../../sda1
</source
<source lang="bash">
cat /proc/filesystems
shows you what file system types are supported under your currently running kernel
Backups for Disaster Recover[edit | edit source]
So, when it came to using a backup program, I chose Mondo Rescue because it can backup to CD, DVD, disk or other mediums. Plus, it can create a restore disk for you which is what I want... in the case of catastrophic system failure, I want to be able to recreate my computer on new hardware.
I have an external USB hard drive with a terabyte of storage that I have mounted at /media/disk
This is the command that I used to create a full system backup of my laptop hard drive to my external USB drive:
mondoarchive \
-OV # do a backup, and verify \
-p greg-laptop # prefix backup files with this \
-i # Use ISO files (CD images) as backup media \
-I / # include from root (default) \
-N # exclude all mounted network filesystems \
-d /media/disk/backups # write ISOs to this directory \
-s 4420m # make the ISOs 4,420 MB is size (smaller than a DVD) \
-S /media/disk/tmp # write scratch files to this directory
-T /media/disk/tmp # write temporary files to this directory
At first, the backup failed with a message that it thought my drive was full. But in reality, it was a problem with the tmp partition being too small so then I added the -S and -T options and it worked fine.
This is what mondoarchive said after I used the -T and -S options to do the run
Call to mkisofs to make ISO (ISO #18) ...OK Please reboot from the 1st ISO in Compare Mode, as a precaution. Done. Done. Writing boot+data floppy images to disk No Imgs ---promptpopup---1--- No regular Boot+data floppies were created due of space constraints. However, you can burn /var/cache/mindi/mondorescue.iso to a CD and boot from that. ---promptpopup---Q--- [OK] --- --> Backup and/or verify ran to completion. However, errors did occur. /var/cache/mindi/mondorescue.iso, a boot/utility CD, is available if you want it Data archived OK. Errors occurred during backup. Please check logfile. See /var/log/mondoarchive.log for details of backup run.
Basically, I have to "reduce your kernel's size" if I want to create a boot floppy, but it doesn't matter if I want to use a boot ISO instead.
