Questions tagged [live-cd]

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

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Where to begin with using Linux [duplicate]

I do not know where to begin with installing/using Ubuntu. I am somewhat literate with Dos programming and use Win 10 Pro on my 17" Envy HP Laptop. Have not found anyone at the University who ...
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32 views

initramfs shows up when I use Ubuntu Studio 20.04

I have a strange problem: Ubuntu Studio is on another hard drive. I don't use it every day, but when I open Ubuntu Studio 20.04, an error with initramfs shows up. I tried to use a live CD and used the ...
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15 views

Unable to re-enable wifi

Context: I'm running ubuntu 18.04.2. I went to some effort to configure headless remote access to this machine, unfortunately one of the side effects of the xorg.conf changes is that I now don't get ...
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1answer
57 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?
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How to install ubuntu on a DVD (with custom dependency) [duplicate]

I am building a lucky draw system, names hard coded, to make sure that nothing had been modified since release (and convince my customers/end users), I want to install a ubuntu (desktop? Desktop cli ...
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26 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 ...
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1answer
34 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. ...
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43 views

Error message "Failed Unmounting /cdrom" after rebooting customizing ubuntu liveCD

I'm working on custom debian/ubuntu liveCD following this guide , and when i rebooting or shutdown system (with or without installing system), i got this message "Failed Unmounting /cdrom", ...
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38 views

Ubuntu live CD shows windows network despite fresh HDD & unplugged cable

I suspect that I had been hacked after I found a remote connection file in Windows that was set to execute a file called "Remote connection phone" or something. After booting into ubuntu ...
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0answers
341 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 ...
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22 views

PXE Boot / Live CD root partition size

we use a remix'd ubuntu ISO to PXE boot machines and since switching to a 20.04 based one, the amount of free space on the root partition after boot is not a lot, significantly less than the amount of ...
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3answers
2k 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-...
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99 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 ...
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0answers
184 views

Custom Ubuntu 20.04 live-CD using Cubic to change favorites, enable wifi and edge scrolling

I'm trying to customize a Ubuntu 20.04 live-CD using Cubic. I have not been able to get these 3 settings to work once the live-CD has booted: change favourites on left menu panel enable WiFi enable ...
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1answer
297 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.
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1answer
2k 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 ...
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43 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 ...
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40 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 ...
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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 ...
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0answers
67 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 ...
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0answers
177 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 ...
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1answer
374 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 ...
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2answers
105 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 ...
0
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1answer
71 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 ...
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163 views

isolinux vs grub in ubuntu

I went through a lot of resources online and I'm still not able to understand the difference between when isolinux/some_config_file (flavor of syslinux) and when grub.cfg is executed. Very confusing. ...
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30 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 ...
2
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1answer
1k 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 ...
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0answers
34 views

LiveCD ver 20.4.1 for AMD64 does not run

Live CD loads and runs on a multi-core AMD-64 box. The same CD over on my single-core AMD64 is giving me no joy. I end up with a splintered screen with horizontal lines, no menus and I have to bomb ...
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1answer
470 views

How to reset the root password of the Ubuntu system on Live CD?

Recently I got a customized Live CD image of Ubuntu 18.04.3 to install a customized Ubuntu system on a Hyper-V virtual machine on my Windows computer. However, I have only obtained the password of a ...
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2answers
834 views

Ubuntu 20.04 infinite loop on reboot, with three services of systemctl

Ubuntu Mate 20.04 crashed and enters an infinite loop on reboot, trying and failing to start the following systemctl services: Stystem Logging Service (rsyslog.service), D-Bus Message System Bus (...
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2answers
278 views

Why can't I extract _all_ of the ubuntu-20.04-live-server-amd64.iso initrd?

I can download the server live CD: $ wget http://releases.ubuntu.com/20.04/ubuntu-20.04-live-server-amd64.iso I can extract its contents: $ 7z x -aoa -o./ubuntu-20.04-live-server-amd64.iso.d ubuntu-...
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0answers
266 views

Create a LiveCD Distrobution .iso From Scratch

What have I done: Started with the Ubuntu Mini.iso 20.04 I have basically created a custom build in a VM environment I have installed xfce4 as the the Desktop engine. I have installed Nemo and set it ...
2
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1answer
3k views

Install Ubuntu 20.04 DESKTOP with Software RAID 1 on two disks

So I have looked far and wide (but maybe not enough) for the answer. Historically, you could avoid the LiveCD and use the alternateCD / text installer to configure software RAID 1 on two internal ...
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0answers
228 views

Problems with creating an encrypted livecd that works on USB/DVD/CD

Summary of the Problem I've created a custom ram-only Ubuntu image that refuses to boot over USB on any device. Before I encrypted it and used a loop device, it worked well. With the encryption setup,...
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0answers
62 views

Virtual machine into ISO

Can i customize an ubuntu image with a new theme, background and programs etc... and then convert it into an iso so i will be able to install the same operating system on a physical computer? I was ...
1
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1answer
372 views

GNURadio Live CD installed on HDD adding persistence [closed]

I installed gnu radio live cd on my hdd as a third OS on my laptop. Now I can boot in all three of them. But I want the Gnu radio to have persistence as in each time I boot it starts as a live OS. Is ...
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0answers
134 views

Ubuntu Live Session Installation Problem

Problem: Can’t install a live session of Ubuntu 18.04.3 What I’ve done: a. Downloaded the install program twice and burned it twice to 2 different DVDs with disk verification. b. Allowed both ...
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2answers
259 views

Live CD not live DVD

I have a very old PC that currently has no functioning HDD and only a CD-ROM drive (no DVD-ROM). There is no way to boot it from a USB drive. Can I still get a Ubuntu Live CD image that could be ...
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2answers
422 views

How to install Ubuntu LTS (18.04) on a system for which disk drivers are existing only i the most recent, non-LTS version?

I am holding in my hands a cool ASUS UX481F (ZenBook Duo) that works surprisingly well out-of-the-box (including network and disk) with Ubuntu 19.10 live USB, but the Ubuntu 18.04 both liveUSB and ...
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0answers
172 views

Problem mounting .ecryptfs home folder after entering correct passphrase!

I have and encrypted home folder on my previous OS (Lubuntu 18.04) which is not bootable now and need to recover it from Live OS. When I run following command to decrypt my home folder: sudo ecryptfs-...
2
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1answer
402 views

Is there any Linux based ubuntu installer like wubi?

I have a kali live CD and I'd like to install ubuntu on my HD, unfortunately I have no USB drives so I was wondering if there is some wubi like installer for Linux, or an alternative way to install ...
2
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1answer
3k views

How to convert existing ubuntu installation into iso [ GUI ]

I reed this How to customize the Ubuntu Live CD? but it's so hard to go throw all these steps & I'm asking for GUI I have an installation of Ubuntu with a system size over 21 GB I need to ...
1
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0answers
36 views

LiveCD shows options, but computer hangs after choosing one

Today, my computer stopped booting from its SSD, so I am now trying to boot from a USB LiveCD image. I downloaded the 64b LiveCD image, put it on a 64Gb USB stick. I can tell my BIOS to boot from ...
2
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2answers
1k views

Create an unattended ubuntu 18.04 live cd that run on demo (try ubuntu) environment with premade various steps

we often deal with some machines with ubuntu live cd. Most of the times there's lot of repetitive tasks we have to do in order to have our ubuntu live cd gets ready. I would like to know how create ...
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0answers
89 views

Unable to Try or Install from Lubuntu Live CD

I have an Powerspec B707 with a 10 year old Intel dh55tc motherboard design, i5 processor in the LGA1156 socket, 8 gigs of ram, and integrated graphics. When I boot with a Lubuntu livecd and ...
2
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0answers
395 views

Deploy firefox including extensions to LiveCD

I'm working on a customized LiveCD and would like to provide Firefox including a few extensions pre-installed. The steps of LiveCD customization are done within a self-written .sh-script. I found ...
0
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1answer
39 views

boot failure: wrong mount point (Kubuntu)

I tried to make an external luks encrypted drive (like i did several times). I was then unable to write to said drive and tried to change permissions (but of course could not remember how to do it). I ...
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0answers
190 views

Customization of LiveCDs Wallpaper, Keyboard Layout, Network adapter drivers and fix screen resolution

I followed instructions of https://help.ubuntu.com/community/LiveCDCustomization to customize my first LiveCD based on ubuntu-18.04.2-desktop-amd64.iso (note that all URI references point to chapters ...
1
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0answers
187 views

Ubuntu 1904 does not boot from LiveCD on Hyper-V in AMD Ryzen. No problems in 1804 [duplicate]

When booting 1904 LiveCD from a Hyper-V VM, I get some error messages: Spectre V2:Spectre mitigation: LFENCE not serializing, switching to generic retpoline Couldn't get size: 0x800000000000000e ...
1
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1answer
1k views

error: file ‘/boot/' not found while running ubuntu 16.04 live CD on MacBook Air (64bit) in either EFI boot mode or MBR boot mode

I burned a fresh copy of Ubuntu 16.04 on DVD (as well as USB) and am trying to boot a live version of Ubuntu. The system ends up eventually booting fine, but during the initial boot phase before ...

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