Questions tagged [disk-image]

Questions surrounding the creation and use of disk images (created via dd, ddrescue, or other means)

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Vm and Ubuntu on mac

I have a problem with the very start of setting up ubuntu with a VM on mac Result Code: NS_ERROR_FAILURE (0x80004005) Component: SessionMachine Interface: ISession {c0447716-ff5a-4795-b57a-...
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The cleanest way to compile Ubuntu from scratch?

Intro: I heard Ubuntu is safe because it is open sourced, we can see what code is running on our machine. Although there is source code of the linux kernel and many open source modules, but how could ...
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How is Bootabiiity Restored to an SD Card (Ubuntu-MATE / Raspberry Pi 4B)?

How is Bootability Restored (Repaired) to an SD Card; Raspberry Pi 4B, Ubuntu-Mate 20.04 I don't want to lose my files or customizations. The SD card for my Raspberry Pi 4B became un-bootable after ...
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Copying data to slightly smaller disk

I have a disk (32G) at /dev/sda, I want to clone that into a slightly smaller disk (30G) at /dev/sdb. Both of them have just the one partition (/dev/sda1 and /dev/sdb1 respectively) currently not ...
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1answer
68 views

Where can I get the Ubuntu Server 20.04.1 LTS for Raspberry Pi?

Nice to meet you. I installed Ubuntu Server 20.04.1 LTS on my Raspberry Pi last December. (I used Raspberry Pi Imager) It was necessary to reinstall, and when I started Raspberry Pi Imager, the OS ...
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Did I screw up when imaging luks partition?

Background: https://askubuntu.com/posts/comments/2249654?noredirect=1 Ok, so when I imaged the drive it was unlocked and I only imaged the luks partition (IE. only the luks part of the drive and not ...
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1answer
70 views

Is there a way to create a bootable image of a running Ubuntu system that excludes certain paths?

I have an Ubuntu 20.04 system that I use as my media server, and I'd like to create an image of the OS (so all my programs and configuration will be preserved) without including my media in the image, ...
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3answers
36 views

What are all the options available to capture Ubuntu installation and later restore to a pristine condition?

For testing, I have been using an Ubuntu Server VM on a Windows machine under VMware and disabling persistent storage. After a reboot I'm back to the original machine configuration. It's really ...
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1answer
314 views

How to mount .raw disk image with no partition table

I need help. I try to mount disk image from a file in raw format and I cant see any partitions on it, so I don`t know how to mount these file. fdisk -l file.raw Disk file.raw: 2 GiB, 2147482624 bytes,...
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Image Writer not working - missing partition table

I have downloaded the Windows 10 iso file and first, I tried to write it to my 16GB USB with the command sudo dd if=Win10.iso of=/dev/sdb and it didn't work so I tried balena etcher. it says missing ...
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32 views

Ubuntu & Windows - Dual Boot on external USB with image files

I want to dual-boot both Windows and Ubuntu - all on a 256GB USB-Stick. I already asked the question Cannot install Ubuntu 20.04 LTS to an external HDD how to just get Ubuntu solely running on an ...
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29 views

Verifying the flashing of a yocto-based linux image into an SD card

I am flashing an image to an SD card but having a bit of trouble understanding what's happening behind the scenes. I'm running the following command which runs successfully sudo dd if=<image name&...
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1answer
583 views

Remaster Installation Image for Ubuntu 20.10

I do remaster the images for installing ubuntu on my computers to have a custom preseed. But with 20.10 my previous used process and commands did not work That's the command i used with 20.04: xorriso ...
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1answer
127 views

How to use Clonezilla + NAS to enable an Ubuntu server to clone itself only via remote access?

Is this (or something like it) feasible, and if so, what high-level procedure/config is needed to do it? The rig/setup Ubuntu Server 20.04 node1 has only one disk, which can be partitioned. Ubuntu is ...
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29 views

No return when trying to access the root directory

I have a fat16 I am currently trying to look at the root directory, but I'm getting little to no return with the following command: sudo dd if=Project1.dd bs=512 | hexdump -C -s $(( 2132*512 )) -n $(( ...
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2answers
411 views

How to open .DD file to analyze it?

I am new to this process and I'm struggling a bit. I was given a .dd file to analyze as an assignment in my current college course. I am using Sans Sift in a virtual box environment, but I have no ...
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1answer
70 views

Cannot Umount the file /dev/sda1 in VirtualBox

I am using a Ubuntu 16.04 LTS on VirtualBox and start working on Yocto Project. I was able to modify and allocate until 1TiB in the Virtual box outside but when booting the system, it will just ...
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115 views

Gnome Disk Image Mounter Permission Issues

I am trying to mount an ISO but am getting permission issues: I have tried running disk-image-mounter as root which works, but while in nautilus, under other locations I see the image but am unable ...
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2answers
2k views

Raspberry Pi - Diskless Cluster using Ubuntu 20.04.1

I'm attempting to get Ubuntu 20.04 to boot diskless on a Raspberry PI so I can run Ubuntu on a cluster. So far, I moved the images from the boot partition on an installed RPi4b with Ubuntu installed, ...
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29 views

Ubuntu 18.04 server dosn't boot after shrinking image

I converted my physical Ubuntu 18.04 server maschine into an image running on unRaid. Cause the image is 1TB (size of the original HDD) and the data itself is just about 170GB, i shrinked the main ...
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119 views

Create a loop device from partition image

I have a partition.img. It was created with dd if=/dev/sdb1 of=partition.img conv=noerror,sync. Now I want to have a loop device that: 1) has a GPT partition Table 2) its only partition is partition....
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43 views

The process of building cloud images

I want to understand the process of building cloud images for ubuntu 20.04: What toolchain do you use for that? How do you build the ova cloud image? It's possible to see CI\CD configuration for that?...
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15 views

Transfer system to another HDD

I'm using Ubuntu 20.04 installed on 320 GB HDD that is about to fail. I've bought new, 1 TB HDD and I want to migrate my system to it. The question is can I make (and how) an image of my current ...
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1answer
242 views

Ghost Image file using FSArchiver for Full-Disk Encrypted OS Drive

Trying to make a ghost image of my full-disk encrypted Ubuntu OS drive. Normally I've used FSarchiver for years. Great tool. But lately, something strange is happening. I have full disk encryption ...
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1answer
915 views

Build aarch64 NVIDIA Jetson Nano image in x64 docker container using GitLab runner

I am trying to build a custom NVIDIA Jetson Nano image (aarch64 architecture) inside a Docker container (running Ubuntu 20.04 x64). I skip the NVIDIA tools part because I am stuck on the first part ...
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35 views

Disks not showing on fresh install

Firstly, I have 10+years on Windows sys admin, but i'm new to the linux world I've just deployed a dedicated server with 4x9TB disks for my backups using hetzner server I used their recovery console, ...
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2answers
2k views

Create bootable backup system image

I have successfully installed 20.04 and done lots of customization. In the event of a tragedy I would not like to have to start all over again. Is there a simple way (suitable for us newbies) to ...
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1answer
2k views

How to boot Ubuntu Cloud image using QEMU

I created config files echo 'password: asd' > userdata echo 'local-hostname: localhost' > metadata Then created iso from them genisoimage -output geniso.iso -volid cidata -joliet -rock ...
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1answer
67 views

G4L and the CLEANHP option

Yesterday I used G4L (Ghost For Linux) to image my Ubuntu 18.04.3LTS with no problem, but trying to image my Windows Visa 64 keeps giving me this error: "lzop: short write: File too large" after about ...
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360 views

How could I increase root partition size?

I want to increase the size of my root partition. This is a screenshot of the gparted:
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2answers
2k views

How to extract initrd from ubuntu-20.04-live-server-amd64.iso

I am trying to update a process used to remaster the Ubuntu 18.04 install image for 20.04 and running into a problem with extracting the initrd archive. The command used is cpio -id --no-absolute-...
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85 views

How to shift ubuntu OS from Logical Partition to Primary Partition?

I was new to Linux and Partition concepts when I installed Ubuntu on my machine, which already ran windows 7. At first, I created some unallocated space (~100GB). But at that time, I didn't know it ...
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1answer
28 views

How to store image of Ubuntu on existing machine and then use it to install on a fleet of machines over local network

I haven't found a clear answer or way of doing what I'm looking for. I'm used to doing this on a Windows environment, and was simply wondering if I could do the same with Ubuntu. I'd like to start ...
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29 views

How to duplicate a USB stick efficiently

I have a USB stick who's contents (including partition table) I want to duplicate onto another, larger USB stick. Right now, I have to dd the entirety of a 16 GB stick onto a 128 GB stick and then ...
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1answer
459 views

How to create a persistent live on a file (disk image)?

I created a personnalized ubuntustudio iso with cubic (it is smaller than the official). And i would like to write a persistent live in a file less than 4G (audio-ubuntustudio.img) In order to be ...
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1answer
161 views

How to make and install the image of my own Ubuntu 16.04 installation with Docker on a remote server

I'm going to hire some space on a remote linux workstation equipped with a Geforce GTX 1080 ti because I want to run there this deep learning repository : https://github.com/CMU-Perceptual-Computing-...
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242 views

Trying to boot from disk image with grub2

I installed Ubuntu and while fresh, captured the whole drive with the command sudo dd if=/dev/sda of=/dev/sdb/image.img then placed it into /boot/images/image.img I want GRUB2 to boot from this ...
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What's the best way to create an image of an old Mac floppy disk with an eye to further analysis?

I have an old Mac formatted 1.44 MB floppy disk that I want to read in Ubuntu 18.04. When I tried to read it under Windows with the MacDisk app it says that the Mac volume header can't be found. I'm ...
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1answer
384 views

Disk image in read-only with persistent storage image

so i already know how to create and mount disk images but here is the example idea of what im looking for create a image (ext4) as DiskA.img, mount it, fill it with data, remount read-only i would ...
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2answers
440 views

Setup an FAT12 floppy image with MBR

I am following the BrokenThorn tutorial about OS development. Windows is used in the tutorial, but I decided to use Ubuntu, because the build process is better. Until now, I only had the program for ...
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5answers
18k views

How do I use an .img.xz file or get an .img file from it?

I have a file with an xz extension, ubuntu-19.10-preinstalled-server-arm64+raspi3.img.xz. How do you get the .img out of it? My goal is to flash the file on an SD card. I want to use www.etcher.io I ...
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1answer
2k views

Unable to Create Backup Image With Gnome-Disk-Utility

New to the forums and running 18.04. Probably a rookie mistake I am making, but scoured the forums and tutorials. The gnome-disk-utility tutorials are simple enough and appear to be working in the os ...
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1answer
2k views

how to truncate a disk image file of unused space without corrupting GPT partition table (end pointer)

Lots of info on taking a image of a disk and shrinking the root (bionic) filesystem partition and then truncating the image to remove the part that became free space. Like https://softwarebakery.com/...
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Need help decompiling .img file on Ubuntu to theme UI

Sorry if it's been asked before but I have this aftermarket digital cluster in my jeep and it runs some kind of Linux version in it. I was wondering if I could get some help in decompiling the update....
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1answer
1k views

How can I find all Ubuntu iso files and other images?

I think the standard web site for Ubuntu iso files is https://ubuntu.com/download But it is difficult to find some of the files that way. Please describe how to find all Ubuntu iso files and other ...
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1answer
257 views

Saving a disk image containing both Ubuntu and Windows partitions to an external hard drive

I want a disk image of my computer hard drive, with both Ubuntu 16.04 (three ext4 Linux partitions /home, / and /swap within an extended partition) and Windows (NTFS partitions). I have an external ...
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1answer
133 views

Turn Old Laptops Into Kiosks

We have several old laptops (4-5 years) that were deployed with Windoze. I'd like to install Ubuntu on them and do something like this: Boot to a fresh install each time Restrict Chrome to only a ...
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230 views

How make snapshot of dedicated server?

What software or utility can help make a snapshot of a production Ubuntu system with all utilities and parameters? I would like to be able to simply restore this image with all data and statements, ...
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0answers
115 views

Convert installed system to PXE boot image

I've installed Ubuntu Server 16.04.6 onto a computer, customized it, and would like to take that installation (from a local 32GB mSATA drive; installed files use about 2.6GB) and convert it into an ...
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2answers
119 views

Users that aren't sudoers can't write SD images

I'm running Ubuntu 16.04 on my laptop. My son has a Raspberry Pi and uses my laptop to write SD card images as it had an integrated card reader. Whilst he can mount, format, read and write the cards ...

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