Questions tagged [disk-image]
a disk-image is an exact copy of a disk, partition or volume, or the process of making such a copy.
19
questions
236
votes
29
answers
613k
views
Using DD for disk cloning
There's been a number of questions regarding disk cloning tools and dd has been suggested at least once. I've already considered using dd myself, mainly because ease of use, and that it's readily ...
- 2,775
28
votes
9
answers
33k
views
How to set up disk cloning with dd, netcat and ssh tunnel?
I would like to copy stuff in bulk (reimage disk using dd) with netcat from host A to B via ssh encrypted channel on Linux.
What commands should I type on both ends?
- 599
21
votes
1
answer
103k
views
How to create a custom ISO image in CentOS
I am trying to create a custom ISO image which would install the minimal required RPMS along with some custom written RPM of my app. and Also wants to perform some post install steps like configuring ...
- 1,780
11
votes
3
answers
4k
views
Where does Ubuntu store partition UUIDs on disk?
Exactly what part of the disk is a UUID stored on? MBR? Somewhere within the partition? Is it a calculated value, or randomly generated and recorded?
- 14.5k
10
votes
1
answer
14k
views
What is the recommended method to prepare Red Hat/CentOS 7 templates?
If I need to deploy Red Hat 7 from template, I would like to take the recommended steps to make my "golden image" clean. It should boot to the first boot prompt and guide the user through the typical ...
- 12.7k
5
votes
1
answer
19k
views
Converting Multiple VMware disk image to single disk image
I have a VMware Instance that uses "multiple vmdk" format(around 7 vmdk files). I want to write the entire disk image to my pen drive.
If it was "single vmdk" image, I can use
qemu-img convert file....
- 153
92
votes
2
answers
186k
views
Does the "bs" option in "dd" really improve the speed?
Every now and then, I'm told that to increase the speed of a "dd" I should carefully choose a proper "block size".
Even here, on ServerFault, someone else wrote that "...the optimum block size is ...
- 4,148
37
votes
6
answers
61k
views
free up not used space on a qcow2-image-file on kvm/qemu
we are using kvm/qemu with qcow2-images for our virtual machines.
qcow2 has this nice feature where the image file only allocates the actually needed space by the virtual-machine. but how do i shrink ...
- 689
22
votes
7
answers
34k
views
Best way to clone a live linux system
Does anybody know of a way to clone a live linux system? I have a live installation running a production site. Problem is, I'm needing to clone it (without bring it down), and then move it over (...
- 1,763
12
votes
2
answers
32k
views
Is it possible to restore disk image to a different size hard disk
recently I made a backup 120 GB disk image using dd:
dd if=/dev/sda of=backup.img
Now I have a new 320 GB hard disk and want to restore that backup image to that new disk. Will running
dd if=backup....
11
votes
5
answers
20k
views
Install .iso file on a remote server without DVD drive access
Is there an easy way to install software located on a .iso file to a remote server which does not provide to me access to the DVD Drive?
I have a license for SQL Server 2008 Web Edition through ...
- 277
8
votes
3
answers
13k
views
What to change after cloning a Linux server? [closed]
Let's say I'm cloning a virtual machine containing a Linux server.
What would you advice to change in the clone? I know - it's kind of vague and depends on what services ware installed on linux but ...
4
votes
2
answers
15k
views
How to copy KVM disk image to LVM
Problem
I'm getting a No space left on device error when doing a dd command. I'm trying to move a KVM qcow2 file to an LVM partition and thought that the LVM partition needed to be the same size as ...
- 749
4
votes
13
answers
3k
views
Best free tool to image a Windows XP drive before reinstallation?
Usually I stay away from desktop support, but as I am marrying this one I don't think I can get out of it :)
Whats the best tool for taking a full, browsable image of a disk before a full ...
- 2,264
2
votes
2
answers
2k
views
Is there a way to relate the mac address of a machine to it's hostname when deploying images over a network?
This is a os-agnostic question; When deploying to a large number of machines, the only thing you have to differentiate them with is a mac address; DHCP can assign an IP to each machine based on it's ...
- 4,919
1
vote
1
answer
289
views
Find out exact location of GRUB / GRUB not working after copying disk image
I prepared an Ubuntu server image with VirtualBox. To transfer the image to the server's SSD I first dded the MBR (512 bytes) and then the LVM partition (PV containing the root partition shrunk to 3GB)...
- 197
1
vote
3
answers
2k
views
Can I run Windows Deployment Services from start to finish without using the network?
I'm fairly new to the Imaging world, and I'm going to be imaging some Dell Venue tablets that don't support PXE booting. I've been reading up on WDS and see that I could potentially create something ...
- 719
0
votes
1
answer
2k
views
ESXi management fails, refusing connections, after copying in the boot drive from a backup
I’m writing this after having found the solution myself, because it was such a strange “gotcha” it deserves to be documented.
Although I hit this issue while doing a restore, it’s possible this could ...
- 1,628
0
votes
5
answers
27k
views
Mounting ISO image on VMware ESX guest OS without VMware client
I have an ISO image on my VMware ESX 3.5 host that I would like to mount in a guest OS. I cannot figure out how to do this. I can easily mount an ISO image with the VMware Infrastructure Client's "...
- 6,958