Linux – How to i restore linux backup on virtual machine

backup-restorationcentoslinux

I have made the backup of my linux OS in bacukp.tgz which is centos 6.4.
Now i want to create a new virtual machine vmware from it.

So do i first need to install centos form cd or iso and then i overwrite all the files with backup or is there any way i can directly start with backup.tgz

Best Answer

boot a LiveCD, any Linux Distro is OK.
partition the disk
mount your partition (for example to /target)
mount your other partitions under /target if you plan to have separate /boot, /var, or any other partitions
copy your backup to /target

mount /dev, /sys, /proc with bind mount to the /target

mount -o bind /dev /target/dev
mount -o bind /sys /target/sys
mount -o bind /proc /target/proc

chroot into /target
```
 chroot /target
```
install grub
reboot into your restored system

Related Solutions

Restore Virtualbox snapshot from backup

After much exploration I have found that this is possible!

NB I don’t have any experience with XML so please excuse the terminology......also please backup any configuration files before making any of the changes suggested..

I could not find any references to this in the VirtualBox documentation or on any websites. In case anyone ever has the same problem here are the steps I went through to resolve the problem:

I Turned off the virtual machines and took a copy of the VirtualBox directory, which contains all of the virtual machine folders and configuration files.
Created a new snapshot of the machine in question
Compared the copy of the VirtualBox folder with the original after the snapshot was created to see what changes were made.

I was happy to see the changes were fairly simple. To restore the snapshot from the backup I:

Opened the VirtualBox.xml file from the VirtualBox folder and found the node named
Under the node I located the child node of the virtual machine I wanted to add the snapshot to - which you can tell by the name of the VHD file.
As the temporary snapshot I added to compare the directories was no longer needed I found the folder where it was created and replaced it with the snapshot from the backups.
I then amended the line which contained the information about the temporary snapshot by changing the uuid of the temporary snapshot with the uuid of the snapshot from backup as well as changing the name of the snapshot file. The section looked like:

Notice that the uuid is the same as the snapshot file name, if you need to find out what the uuid is just copy and paste the snapshot filename without the extension.

That’s it for the VirtualBox.xml file, save it and close it. Now open the MachineName.xml file from within the virtual machines directory
Scroll down to the section that looks similar to this:

Replace the uuid of the temporary snapshot with the uuid of the snapshot from backups.
Save the file and close it

That worked for me. The machine booted up fine with the snapshot restored from backup and all the data back!

Linux Bash – How to Sort du -h Output by Size

As of GNU coreutils 7.5 released in August 2009, sort allows a -h parameter, which allows numeric suffixes of the kind produced by du -h:

du -hs * | sort -h

If you are using a sort that does not support -h, you can install GNU Coreutils. E.g. on an older Mac OS X:

brew install coreutils
du -hs * | gsort -h

From sort manual:

-h, --human-numeric-sort compare human readable numbers (e.g., 2K 1G)

Best Answer

Related Solutions

Restore Virtualbox snapshot from backup

Linux Bash – How to Sort du -h Output by Size

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