Questions tagged [live-cd]

Questions related to live CDs, which allow you to test drive Ubuntu without installing it.

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Install package into live environment

Suppose one is running Ubuntu's live CD/DVD installer ISO. Now also suppose for whatever purpose, they need to install a package into that live environment (the in-RAM environment, not the ISO image). ...
Melab's user avatar
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93 views

Some way to create an installable ISO from an installed (and customized) Ubuntu system (22.04 Jammy Jellyfish)?

Any help as soon as possible would be greatly appreciated. I customized Ubuntu very deeply, everything from the OS release file to the wallpaper, shell themes, custom Plymouth theme, logo in the about ...
AndrewTheGreat's user avatar
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57 views

Grub-installl command doesn't work inside chroot

While restoring grub after installing windows, after mounting everything(bin, proc, run, dev, dev, dev/pts), and after chroot /mnt/ command, I don't have Grub-installl command, Any suggestions?
Matin Mat8's user avatar
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121 views

Cannot find grub in ubuntu 23.10 image for editing it

I was editing Ubuntu 23.04 live CD image to change grub.cfg so that it does not show try and install option. In Ubuntu 23.10 it is not seen anywhere and I cannot edit the live CD. How and where can I ...
Basudeb Gupta's user avatar
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0 answers
174 views

customized ISO with ubuntu 23.10

"I utilized Ubuntu 23.10 to create a customized ISO with the intention that, upon burning it to a USB drive, it will automatically launch my designated startup application. However, everything is ...
Umang Jais's user avatar
1 vote
0 answers
69 views

Disable New Ubuntu Desktop Installer On Live Image

Does anyone know how to make a 23.10 live disk boot straight to the desktop without prompting to install? I know how to do it with ubiquity, but ubuntu-desktop-installer doesn't appear to use boot ...
Josh Noe's user avatar
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35 views

Wired connection fails, connection from live cd does work

My wired connection of my desktop has stopped working. It does connect to the internet when using the live cd. I'd like to know how to restore the connection. My system runs on Ubuntu 22.04.
mr dude's user avatar
2 votes
1 answer
81 views

Easy ISO customizing tool for Ubuntu?

I am searching for a way to create a custom ISOs for (K)Ubuntu desktop to provision physical machines (like laptops), esp. with lower RAM, through PXE / Netboot. Goal is a mostly completely unattended ...
OpenUser's user avatar
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209 views

anyone tried installing ubuntu-desktop via ipxe/22.04 live iso subiquity method?

Just recently, running a network ipxe install of Ubuntu 22.04 results in an error 100 when trying to install the ubuntu-desktop package. I can try and switch to xubuntu-desktop and while that allows ...
chester0801's user avatar
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snapshot of current OS including all dependencies and libraries and some specified folders

I need to make snapshot of my current OS including all dependencies and libraries and some specified folders. Folks from IRC just advised cubic to make some kind of iso (? live cd). Basically It does ...
jNc's user avatar
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1 answer
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How to prompt for user Hostname while booting Ubuntu22.04 live-cd customization

I'm customizing Ubuntu22.04 live-cd. I know how to hard code hostname while installing. But, my requirement is to prompt from hostname and take user input while installing. Could anyone please help me ...
Naga's user avatar
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Mounting encrypted rpool using Ubuntu Live CD, successful but broken links, out of ideas

VM took a crash during operation and now won't boot. Would like to rip the data out of the encrypted home directory and then start from scratch. I boot the VM with Ubuntu Live CD, below are the steps ...
psu190's user avatar
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How to create a customized ubuntu live cd

The answers to my question are all very old and the links are obsolete. As of today, what is the guide link for doing this? I am using this: https://help.ubuntu.com/community/LiveCDCustomization ...
Basudeb Gupta's user avatar
1 vote
1 answer
119 views

Install CD burner on Try Ubuntu

Is it possible to install a CD-ROM burner when running Ubuntu from the installation media as "Try Ubuntu" I have tried with apt instal brasero k3b etc. and none was possible to locate. The ...
Kjeld Flarup's user avatar
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228 views

Xubuntu Live how to login on lock-screen?

With Xubuntu 22.04 Live if you do nothing for an extended period of time, it open the lock-screen, but the lock-screen does not accept xubuntu:(blank) , nor ubuntu:(blank) nor root:(blank), and ...
hanshenrik's user avatar
5 votes
1 answer
896 views

Which squashfs file in Ubuntu 22.04 live server image should be used?

I found the squashfs file in Ubuntu 22.04 image pretty much different from previous releases. There is no filesystem.squashfs file under the casper directory after mounting the ISO. Instead, there ...
Ali Zhang's user avatar
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0 answers
287 views

Customizing LiveCD 22.04 - unable to boot - Squashfs GPG signature / keyring issues

I have spent last few weeks trying to customize Ubuntu LiveCD. Main guide which I follow is https://help.ubuntu.com/community/LiveCDCustomization This produces a modified image, but upon booting a ...
ojek's user avatar
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1 vote
2 answers
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how can I boot install iso from loopback in grub?

In the history, I can use iso_scan or loopback.cfg to boot: loopback loop $isofile linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=${isofile} verbose initrd (loop)/casper/initrd* Or ...
Wang's user avatar
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How do I add additional snaps to Ubuntu 22.04 Live?

I'm trying to add some snaps to a live USB. I tried the directions given in an answer to another question, but they don't seem to work on the latest LTS. After following those steps and booting the ...
Josh Noe's user avatar
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0 answers
252 views

Create Ubuntu LiveCD that boots into RAM and run a custom script

I have a simple question. Is there any way I could create ubuntu LiveCD that would boot into RAM and run a simple shell script that I have? I tried using CUBIC, but with CUBIC I am being able to ...
BishwashK's user avatar
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1k views

Help with Ubuntu 22.04 and realtek wifi driver

I am absolutely stumped as to how to get my realtek 8821ce driver onto a backup USB drive. I have tried everything from downloading/copying/installing binaries, dependencies, source, using Ventoy, ...
cyclopticnerve's user avatar
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How to accomplish some tasks within cubic with the goal to create a custom Ubuntu image ready to Pass-Through an nvidia GPU

I'm trying to understand how to customize Ubuntu 22.04 to satisfy my needs and also because I want to re-distribute a version of Ubuntu ready for the users who wants to passthru their nvidia gpu ...
Marietto's user avatar
  • 565
1 vote
0 answers
1k views

Ubuntu 22.04 LTS Desktop - DHCP DNS servers ignored

Relatively new to linux and just needed to run through something: I've noticed that with Ubuntu 22.04 there is no way to disable the dns stub listener at install time nor run time on the live cd ...
Josh Menzel's user avatar
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1 answer
435 views

How to fix: Failed to start default target: Transaction for grafical.target/start is destructive with BTRFS errors?

After installing Linux Ubuntu 22.04 on usb-stick some applications did not work (for example: “Ubuntu Software”). I tried reinstalling this app with this video tutorial: https://youtu.be/9pq7in1DTe8 ...
The Benjiro's user avatar
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0 answers
33 views

Ever clean ubuntu start

I want to install a ubuntu SO on some laptops. This laptops will be used for studens between 12-16 years old, so to avoid problems I would like to start the ubuntu every time from a clear .iso (like ...
NBB's user avatar
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Panic happened when create VM from live system ISO created myself

:cry: I followed this instruction: https://ubuntuforums.org/showthread.php?t=688872 Panic: panic - not syncing attempted to kill init Could you plz help me out ? enter image description here
Alex Александр's user avatar
1 vote
0 answers
593 views

Boot live .squashfs image from partition

Previously on Debian Jesse on Raspberry PI, I did a solution that was booting the system from one of squasefs images and overlayfs in the second partition (and alternatively boot to "main" ...
Uros's user avatar
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0 answers
689 views

How to update the kernel for a live CD Linux image

I've a customized LiveCD image based on Ubuntu. It's a small image has just the required software to get the job done. The thing is that this image doesn't have modules for newer hardware such as a ...
Taha Adel's user avatar
-3 votes
1 answer
1k views

Is linux kernel boot parameter root=live:LABEL=$iso a valid option for Ubuntu Live booting, e.g. Lubuntu 20.04 LTS?

Is linux kernel boot parameter root=live:LABEL=$iso a valid option for Ubuntu Live booting, e.g. Lubuntu 20.04 LTS? I was making various GNU GRUB 2.04 menu entries to boot into a live session of ...
breakdaze's user avatar
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346 views

How do I get a live USB install without the install prompt? [duplicate]

I have a Ventoy drive with a handful of ISOs for testing purposes. Since it's for testing and troubleshooting systems, it's useful for reaching the desktop to be quick. For my use case, the prompt to ...
3XC4L1B3R's user avatar
0 votes
1 answer
266 views

How to create an Ubuntu live iso that does not install os but runs a simple script

Goal: Create an Ubuntu Server 20.04 bootable ISO that: Does not install Ubuntu Obtains an IP and network settings via DHCP Just runs a bash script after boot Drops to a shell once the script has ...
Jeffrey Kenney's user avatar
0 votes
1 answer
781 views

How to change user id for live user?

Web search found How can I change my own user ID?. However there is no 999 (ubuntu) user in /etc/passwd in distro iso file (in casper/filesystem.squashfs), home folder is empty. AFAIK it means live ...
Martian2020's user avatar
-4 votes
1 answer
3k views

When using Ubuntu live CD, files and folders cannot be copied or moved due to permissions

I want to use an Ubuntu live CD and copy a folder between my two Windows hard disks. However, I get an error saying that I don't have permission to do it. How can I do this?
Mr Pubzz's user avatar
3 votes
0 answers
27 views

How to convert Ubuntu VirtualBox VM to .iso format? [duplicate]

I have configured Ubuntu 20.04 in VirtualBox. I have installed some software and applied some settings. Now, I want to convert this image to a .iso image so that I can install this customized Ubuntu ...
Hafiz Muhammad Shafiq's user avatar
-1 votes
1 answer
129 views

Ubuntu doesn't support USB wifi card in LiveCD mode - any way i can fix this?

Been trying to test out Ubuntu in livecd mode, hoping to install it but whenever im in livecd mode my USB wifi card simply just isn't supported. everything else seems to work, but just not the wifi. ...
NoCaps's user avatar
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2 votes
0 answers
2k views

How to Headless Install Ubuntu 20.04 Desktop Environment for the Raspberry Pi 4 using UART Pins (TTL to USB Serial Port)

I want to install Ubuntu onto my Raspberry Pi 4 using the desktop release build, not the server release build, because I do not have the time for the Pi to install all the huge packages and massive ...
Max Dax's user avatar
  • 79
15 votes
3 answers
3k views

What does "LiveCD" mean?

For example, I have seen the term "LiveCD" in this web page: https://help.ubuntu.com/community/LiveCDCustomization Why is it called a "LiveCD"? And is ubuntu-20.04.2.0-desktop-...
Chan Kim's user avatar
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342 views

Using tar command to backup file

I am using a live cd to take backup of a file.This was my problem. Now I want to use tar to backup a single file Phone academics where I have accumulated other files and I want to create the backup in ...
Spectra's user avatar
  • 211
2 votes
1 answer
2k views

How do I pre-install a program on a Live CD to boot? [duplicate]

I would want "program.deb" to be pre-installed to a Ubuntu Live CD.
TheTank20's user avatar
5 votes
2 answers
8k views

ubuntu 21.4 desktop iso burned to dvd fails to start

The ubuntu-21.04-desktop-amd64.iso burned to a dvd fails to start live session giving a bunch of error messages like: Failed to start Snap Daemon Failed unmounting cdrom Failed to start Holds Snappy ...
hikikomori666's user avatar
0 votes
0 answers
105 views

How do I read a Windows XP hard drive using Ubuntu on a cd?

I downloaded Ubuntu onto a cd and booted my laptop with it. When it was loading up it said something about checking filesystems. I just let it run until it was done. It then gave me an option to try ...
whatwhatwhat's user avatar
0 votes
0 answers
130 views

ubuntu LiveCd enable user login

I am customizing Ubuntu 18.04 and want to boot from a USB drive. As the LiveCD does automatically log in, I Want to enable user login while booting. Can someone pls help me to enable user login for ...
sureshk's user avatar
0 votes
0 answers
41 views

Customize XFCE on Xubuntu custom Live CD [duplicate]

I followed https://help.ubuntu.com/community/LiveCDCustomization and my custom iso worked, it booted and I have apps I installed and a few scripts I added. I'd like now to customize the GUI: keyboard ...
Hikari's user avatar
  • 203
0 votes
0 answers
180 views

how to custom ubuntu live CD with gcc installed

I want to make an Ubuntu image with gcc so that I can run gcc directly after the system is installed. The version of Ubuntu is Ubuntu Server 20.04.2 LTS. How can I package the gcc related installation ...
Jim's user avatar
  • 1
0 votes
0 answers
804 views

What does Ubuntu Live CD use to merge multiple *.squashfs files, from the casper directory, to single unified filesystem, UnionFS or AUFS? Or else?

Answer to this would really help me out with the master thesis. I created custom Ubuntu 18.04 Live CD .iso image that comes preinstalled with certain packages (NodeJS, Chrome, Java, MongoDB). However ...
Dajan Bračković's user avatar
0 votes
1 answer
1k views

How to use ubuntu-20.04.2.0-desktop-amd64.iso as a live CD

I am planning the upgrades of my MythTV box and laptop from 16.04 to 20.04 via 18.04. I have downloaded the .iso images for both releases, burnt them to a DVD, and tried them on the laptop prior to ...
PaulRSte's user avatar
4 votes
2 answers
3k views

How to modify partitions without a live USB/CD

Plenty of people struggle when they want to modify partitions on their running system. Frequently its because the partition they want to modify is mounted and when they run GParted the partition is ...
PonJar's user avatar
  • 1,830
1 vote
1 answer
495 views

Use Livecd to recover ubuntu

I accidentally deleted /usr/share. My system is unbootable now. I have a backup of /usr/share in the form of simple copy and paste. But my linux ubuntu 20.04 system is un writeable upon booting with ...
pasmon 79's user avatar
0 votes
0 answers
138 views

Backup installed packages from LiveCD

I recently messed up when trying to install an application which resulted in me doing a chown command that requires a reinstall of Ubuntu. I would ideally like to backup all the installed packages I ...
JCG's user avatar
  • 11
2 votes
1 answer
6k views

How to have Ubuntu read the file in windows hard drive which became RAW?

I have a 2TB USB Windows hard drive which suddenly became RAW. The hard drive contains only HD movies, mkv files. There's no OS there. From this link and this link, it seems I may get the chance to ...
karma's user avatar
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