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.

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Customizing Linux server after flashing image

I have a process which applies a image/clone of a "fully configured" Debian-based system to batches of like hardware, and then customizes several key system properties POST flash for ...
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Advice on replicating Hyper-V server image

What would be some recommendations for replicating a Windows Server 2019 system image that also contains a couple of Hyper V VMs? I have several identical new Dell Edge servers to set up. Setup ...
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39 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 ...
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26 views

How to read binary contents of free disk space in CentOS

Is there a way I can use dd or another tool to view the binary contents of free disk space in CentOS? In case it matters, it's a Linux logical volume with XFS format, holding data only (not a common ...
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113 views

Cannot create VM with uploaded image on Openstack (Devstack)

I am working on a very simple project with Openstack, using Devstack. Currently, I've been able to make networks, routers, Vm's without many issues. But here is where I am having trouble. I've created ...
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How to Lift and Shift from OpenStack to GCP?

I have previously had an OpenStack based cloud environmnent in which I had virtual servers. I have migrated to GCP and while I've refactored everything to be cloud native (and especially k8s), I'd ...
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65 views

How to create GCE machine image without including unmounted disks?

I created a machine image on GCE from a running ubuntu VM which has an "additional" disk available to be mounted. That disk is mounted for backups, then dismounted, and was not mounted at ...
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WDS Stuck Capturing Image - 75/76%

So I captured a software image Windows 10 2004 a month or so ago to WDS 2012 with no hitches. Over the last two days I have been trying to capture another image using the same method but yesterday it ...
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1answer
326 views

Is there a good way to shrink disk usage of sparse file containing luks-encrypted btrfs file system image?

I've created a sparse file filesystem.img, formatted in with cryptsetup luksFormat, created a btrfs filesystem on it. The image file disk usage expanding fine while adding files to the btrfs ...
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1answer
100 views

gcloud compute engine - multiple full backups / snapshots / machine images?

On a gcloud debian vm instance, I would like to create full backups and rotate them, e.g. one per day of week one per week one per month one per year That is, each daily would get over-...
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Make an image from entire ESXi host

For some reasons, I need to make an image from entire ESXi host. It is a physical server, I don't know the root password. It's ESXi 6.0 standalone host. I want to make a copy from entire server, ...
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140 views

Compute Engine - 1000 GB disk cant decrease size

i have a huuuuge problem. Created a snapshot and image from my instance...instance has 1000GB of disk. Now i need to reduce it but everytime i try to create an image or a snapshot from that, i get ...
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How to write a sparse Linux (EXT4) disk image without writing gigabytes of zeros?

I have a 64 GB Linux disk image with ~50 GB of unused space across the partitions. The file is sparse, so it only takes ~14 GB on disk. But if I dd the image, it writes the full 64 GB, which takes ...
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How can I automate the installation of an Ubuntu image using a USB device?

I have to automate the installation of a Linux image. The perfect behavior would be that I plug the USB, turn on the device and it runs the dd command in order to flash the image stored in the USB ...
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591 views

Automatically extend VM partition filesystem following a qemu-img resize

I'm launching a virtual machine with QEMU/KVM. After resizing the qcow2 disk image via qemu-img resize Test.qcow2 +500M And looking at the instance disk via: fdisk -l inside the instance, I can ...
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1answer
444 views

Updating a single file in a CPIO archive

I have a CPIO archive with the Linux image on it. With binwalk I can see that there are the following chunks: DECIMAL HEXADECIMAL DESCRIPTION ------------------------------------------------...
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ClearLinux on Openstack

I'm having trouble getting ClearLinux to work on OpenStack. From their download source, based on their sites download page & documentation, I've tried clear-29690-cloud.img, clear-29690-cloud-...
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VM image vs Phyical server image?

I often hear its easy to create the image of one VM and setup it another VM(even instance types are of different types) than creating the image on physical server. In fact one of the devops guy in ...
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Multi-OS imaging strategy

I've been backup up my Windows system to an external 2TB WD drive for a while, but not my CentOS server. Most of the code I write lives on GitHub so I haven't been concerned about it. I'm currently ...
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1answer
58 views

live server disk image backup data integrity

I've been looking for a way to do a disk image backup of a running linux server. There are several questions which answer this, like How to make a disk image, Mirror Live Linux (Debian) Server, Linux ...
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2k views

How to resize lxc/lxd images, if i am using LVM backend?

I'm using LXD few years and I'm glad to use this platform in my testing environment. But few days ago, I couldn't install Microsoft SQL server 2017. The reason was, that I used default ZFS backend. ...
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1answer
362 views

Clonezilla from single USB stick / pen

I am trying to create a custom clonezilla installer, as a tool to refresh our standard machines from memory stick. I can customise the start menu fine from syslinux/syslinux.cfg just fine, but I ...
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1answer
704 views

Hyper-V virtualization with google compute engine image

I am trying to download an image from my Google Compute Engine VM Instances in Google Cloud Platform and I'm following this article to export the image to a GCS Bucket and download it locally. I need ...
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Do all disks advertised as xyz-GB have exactly the same byte size?

I must setup a system where i can do a "dd if=/dev/sda of=/dev/sdb" to a backup and the reverse. This means i need disks to have exactly the same number of byte or i will run in trouble. It's not ...
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313 views

How to re-enable test mode when deploying Windows 10 wim image with Dism?

I am upgrading about 200 machines in my lab from Windows 7 to Windows 10, and as part of the upgrade, I am also converting the file system on the machines to GPT. I am doing this as an automated ...
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Azure: How to attach data-disks on VM startup, formatting if necessary

I want to provision an Azure VM with Terraform and configure it by using a custom AMI created by Packer. I want an attached, snapshotted, managed data-disk. I want to use Oracle Linux 7.4 What is ...
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What steps are needed after cloning from a image Ubuntu to new system? (sysprep, unconfig)

I have an imaged (clonezilla) system image of a Ubuntu setup with a bunch of settings. Now I am wondering, what needs to be changed if I use the clonezilla image to create always new systems from this ...
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2answers
169 views

Copy a disk in another VM in Azure (using Graphic Interface)

I'd like to copy a disk of a VM and use it in another VM. I see that there are many tutorials to do it, but they suggest to use PowerShell, bash, ecc. But I don't want to spend time to learn how to ...
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1answer
7k views

How do I generate a bootable .iso file from a directory?

Currently, I have selected a distribution of Linux that I like a lot and I have downloaded the .iso image which I can simply dd to an USB or CD media, etc... I would like to add some additional data ...
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168 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)...
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KVM: Cloning RHEL server on 2 disk images onto 1 disk image

We currently have a RHEL VM that is running from 2 disk image files (excuse my terminology if it is incorrect). Is there a way of cloning these 2 disks to create a 1 disk image?
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1answer
3k views

KVM image format convertion: raw thin provisioning to raw preallocated

I'd like to convert a KVM virtual machine disk image in raw file from a thin privisioning format to preallocated. In the first place I've got a preallocated 20Gb raw image file: image: /var/lib/...
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What to do if system administrator does not support system image? [closed]

In case of a system failure, I wanted to create a system image. However, it requires administrative password. System admin asked me why you want to create a system image; because we don't support it ...
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100 views

Automatic Image Deploy from Network to Multiple Different Machines

We have multiple different "computers" that uses SD card like drives to store Windows. Those Windows are written to those cards with HDD Raw Copy. Every couple of weeks we manually Write ...
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1answer
798 views

How to shrink btrfs image file used by LXD storage?

I have btrfs image file set as backend for LXD (2.18) but I would like to shrink it's size. What I did: mounted image to loop device losetup /dev/loop1 /home/btrfs.img mounted device to /mnt dir ...
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2answers
1k 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 ...
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1answer
200 views

Is it appropriate to use Docker for both long-running and short-running processes together?

Suppose I'm building a microservice that resizes and optimizes image files. It's a long-running daemon which provides an HTTP API responding to standard GET/POST responses. Based on my knowledge of ...
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1answer
444 views

Using pxe boot for usb installer

I have a disk image (A) with a custom installation of CentOS 7. This disk image is included in another disk image (B) which also contains an installation of CentOS (minimal) as well as an installer ...
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2answers
7k views

Windows 10 installation on Dell T7600 with PERC H310 Raid Controller

We work in an environment with machines running mostly CentOS 7.3 but from times to times we need to switch to Windows 10. To manage those changes, we have a PXE boot solution with tree options: ...
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1answer
793 views

create bootable ISO from USB flash drive recovery media with imgburn or other tool

I need clean my HDD and partitions but first did a recovery usb drive with the recovery tool, the recovery is one of Thinkpad E431 and was done right. I cant rely only on a fragile usb drive to keep ...
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1answer
3k views

Sysprep: Deploy image created in VirtualBox - Workflow?

I would like to deploy a reference installation of Windows 10 Pro with software and user settings to my physical clients. I have a couple of questions concerning this process: Can I start the ...
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1answer
4k views

using dd with conv=sparse to punch zeros

I am attempting to clone a disk partition to an image file using dd. I want to create the image without zeros to minimize the filesize, and on the other hand I do not want to pipe through gzip. The ...
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1answer
547 views

Does having a good or bad filesystem inside a Virtual machine really matters?

I want to understand how the IO is sent to hard disk blocks from a virtual machine. Does having a XFS or ext3 or ext4 etc. really matters inside a virtual machine, or it is just depended on the file ...
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3answers
444 views

How to create shared Google Compute Engine images?

In the past I've been using gcimagebundle to create an image from an existing GCE instance, that I can later upload to Cloud Storage. Since the tool been deprecated, I wonder if there is an ...
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1answer
15k 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....
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Windows PE3.0 does not detect SSD — Driver Injection

I’m having an issue with getting Windows PE 3.0 to recognize hard drive. At least I think this is the problem. I’m attempting to boot a Dell Latitude E7470 Solid State Drive, Windows 7 64-bit machine ...
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microsoft azure image lose all user accounts

At the moment we try Microsoft azure to check out the compatibility with our own products. Creating and installing our own software was pretty easy and everything works as a charm. Now we try to ...
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1answer
18k views

Create a windows 10 image for use as a docker container

I'm trying to create a Windows 10 image in order to dockerize an existing legacy application. For very good reasons, the base image has to be Windows 10 not Windows Server. How do I go about doing ...
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1answer
715 views

Dell E7470 Imaging in Windows PE and Acronis

Our India office has received a shipment of Dell Latitude E7470 laptops. Our technician there is having issues imaging this laptop when attempting to use Acronis True Image (2015) as well in Win PE (...
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1answer
3k views

KVM direct disk access vs raw files

I have to setup 14TB of raid storage space (which just shows up as /dev/sdb). My question is: Is there any impact on performance from a kvm guest if I create ext4 on this large drive directly, mount ...

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