Questions tagged [live-cd]

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

Filter by
Sorted by
Tagged with
73 votes
9 answers
352k views

Live CD asks for a username and password

When I boot Ubuntu 10.04.3 from a live CD, it asks me to enter a username and password. I have not booted before, and I haven't created an account.
Sofiane Bouamine's user avatar
59 votes
6 answers
18k views

How can I prevent someone from resetting my password with a Live CD?

Recently one of my friends came over to my place, within 15 minutes he hacked my account using a Live CD and reset the password in front of me. I was baffled to see such a thing. Please guide me to ...
coder's user avatar
  • 3,591
36 votes
7 answers
60k views

Where is the memtest option on the Ubuntu 64-bit live CD?

I'm looking for the memtest option on the 64-bit version of the Ubuntu 12.04 live CD, but the only options I have are "Try Ubuntu without installing", "Install Ubuntu", and "Check disc for defects". ...
Drise's user avatar
  • 506
33 votes
5 answers
23k views

How can I check the integrity of a downloaded Ubuntu CD?

I've just downloaded a CD image of Ubuntu. I know the installer has a check CD option, but how can I check that the image is good before burning it to CD?
Jorge Castro's user avatar
  • 71.7k
26 votes
3 answers
76k views

How to use Cubic to create a custom Ubuntu live CD image?

How do you install Cubic and use it to create a customized Ubuntu live CD *.iso file that can be burned to CD/DVD or copied to a bootable USB?
Enterprise's user avatar
  • 12.3k
26 votes
8 answers
72k views

How to boot from non-Ubuntu live ISO images like Fedora or CentOS?

I found that it can be done with loopback as follows menuentry "Lucid ISO" { loopback loop (hd0,1)/boot/iso/ubuntu-10.04-desktop-i386.iso linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=/...
Rahul Virpara's user avatar
23 votes
2 answers
716 views

What are some alternatives to upgrading without using the standard upgrade system?

What are some alternatives to upgrading without using the standard upgrade system? Suppose for example that I wanted to upgrade an Ubuntu installation on a machine with a poor Internet connection. ...
DLH's user avatar
  • 2,445
21 votes
4 answers
2k views

What version is this Live CD / Live USB?

I often have a number of Live CDs sitting around (actually USBs) and I'm not always sure which version is which. Is there some quick way to find out the Ubuntu version I'm looking at? Perhaps a file I ...
Jake's user avatar
  • 425
18 votes
5 answers
575 views

How can I put old Ubuntu CDs to good use?

I have a fair number of older Ubuntu CDs sitting around for releases that are not supported anymore. They have beautiful pressed labels and sleeves that I would hate to just throw away. What can I do ...
17 votes
4 answers
1k views

What's the difference between Ubuntu for free and the Official CD for $5?

What's the difference between Ubuntu 12.04 LTS for free and the Official CD of Ubuntu for $5? I didn't know the difference.
Jan Freisler's user avatar
16 votes
2 answers
90k views

Unable to locate package chntpw

To overwrite a Windows 7 password, one can boot from a Ubuntu LiveCD and run chntpw. Unfortunately, installing chntpw is not so easy: $ sudo apt-get install chntpw E: Unable to locate package chntpw
Nicolas Raoul's user avatar
16 votes
2 answers
128k views

Where can I find the log files for mounting disks?

I understand if I boot from a live cd I can see all the system logs under System > Administration > File Log Viewer I have a major error with a disk not mounting and I want to trace i tback to the ...
winchendonsprings's user avatar
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
  • 1,969
15 votes
6 answers
15k views

Installer gets stuck with a grayed out forward button

I have a CD with Ubuntu 10.10 and a laptop with Ubuntu 8.10. The laptop had all sorts of crud on it, and anything I wanted to keep was backed up on an external drive, so I was happy to do a wipe and ...
TRiG's user avatar
  • 1,910
15 votes
3 answers
9k views

Will Ubuntu live cd/dvd work with no hard drive installed?

I have no hard drive installed, Only USB thumb drive. Will this be a problem?
Ringtail's user avatar
  • 16.1k
14 votes
1 answer
7k views

Can I build a Ubuntu ISO from a manifest?

This answer talks about the ISO manifests - an example is here.. Is it possible to build an ISO from a manifest file, or is the manifest file just dpkg --get-selections put into a text file? ...
jrg's user avatar
  • 60.6k
14 votes
3 answers
18k views

Using a bootable live cd disk image mounted on the hard drive

I want to mount the contents of a boot-able CD image, like Ubuntu rescue remix, to a partition of the hard drive. So I can have an entry in Grub to boot to the contents of that disk, http://www....
Mateo's user avatar
  • 8,104
14 votes
4 answers
557 views

What are the legal consequences of customizing the LiveCD?

the organization I work at wants to create a custom Ubuntu LiveCD, the customizations are: Pre-installed programs, plugins, some device drivers, and aesthetics such as icons and backgrounds, as well ...
Orca's user avatar
  • 243
14 votes
3 answers
21k views

Howto run Ubuntu with UEFI and Intel Smart Response Technology

This question has NOT been answered by the following due to them saying to permanently disabling these features Installing Ubuntu Alongside a Pre-Installed Windows with UEFI Install ubuntu on windows ...
BeowulfNode42's user avatar
13 votes
2 answers
80k views

How do I erase/format a harddisk from a live CD?

I need to format a drive containing an old install of Ubuntu 10.04, to install Vista (not my idea!) Vista setup apparently refuses to format non-FAT32 or NTFS partitions. However, I can't seem to ...
Thomas O's user avatar
  • 365
12 votes
4 answers
167k views

How can I create a LiveCD/LiveDVD/LiveUSB?

How can I create a Ubuntu LiveCD/LiveDVD/LiveUSB?
George's user avatar
  • 241
12 votes
4 answers
52k views

Installing Ubuntu 12.04 without installing Grub

Using the Ubuntu 12.04 Live CD, is possible not to install Grub? In previous versions, there was a checkbox called something like "skip grub installation", now in 12.04 this checkbox isn't there any ...
Matteo Pagliazzi's user avatar
12 votes
2 answers
36k views

Recovering user files with a Live CD

For some reason I can't boot my system. I get an error akin to Operating System Not Found. I tried bootrepair, and that didn't work. So then I decided I would just save my personal files, wipe ...
JamesKPolk's user avatar
12 votes
2 answers
94k views

How to access hard drive files from liveCD?

I don't know what files or file types are there on the hard drive nor do I know the file system in which the hard disk is written on. I am not able to view it in the home folder after booting from the ...
Sriram's user avatar
  • 131
12 votes
5 answers
13k views

Is there any way to make a live CD from my current installation?

Remastersys is no longer maintained and UCK as well as Live-Magic aren't exactly what I'm looking for as they remaster a livecd. What I'm aiming for is something like PCLOS's makelivecd so I can have ...
Shogun's user avatar
  • 233
11 votes
6 answers
48k views

No sound in 12.04 on VirtualBox

No sound when installed in VirtualBox. When I boot from the live CD in Windows, sound works fine on my speakers. When in boot the live CD in VirtualBox it does not see my speakers. In sound properties ...
john crisp's user avatar
11 votes
3 answers
51k views

Fixing unbootable installation on LVM root from Desktop LiveCD

I just did an installation from the 10.10 Desktop LiveCD, making the root volume an LVM LV. Apparently this is not supported; I managed it by taking these steps before starting the GUI installer app: ...
intuited's user avatar
  • 7,203
11 votes
4 answers
5k views

Prevent LiveCD using existing swap partition

I have an existing installation with a swap partition, and I want to boot a Ubuntu 10.04 Desktop LiveCD without using the swap partition. I want to avoid using the swap partition so that I can resize ...
Liam's user avatar
  • 427
10 votes
3 answers
23k views

How to securely erase hard drive with ubuntu live cd? [duplicate]

I want to sell my old SSD on EBay. How do I prepare the hard drive to protect my personal data and get the hard drive in a good shape using an Ubuntu live cd?
ThreeCheeseHigh's user avatar
10 votes
2 answers
3k views

How to quickly and thoroughly use a LiveCD to test for hardware incompatibility?

Often people wanting to know if Ubuntu will run on a potential hardware purchase are advised to use the LiveCD, perhaps in-store, to check hardware compatibility. For example, this answer suggests ...
Chan-Ho Suh's user avatar
  • 7,562
10 votes
1 answer
7k views

Using an APT proxy for downloads during installation

During system installation from a Desktop LiveCD (10.10) I checked the "Download updates during installation" option. Before starting the install I had configured an apt proxy server. The proxy ...
intuited's user avatar
  • 7,203
9 votes
2 answers
19k views

Difference between LiveCD, LiveUSB, full-install, and persistence?

I am currently running Ubuntu as a guest vm on a Win 7 host via VirtualBox, but I would like to have a portable version of Ubuntu when I am not using my laptop. I am unsure as to the difference ...
Jay's user avatar
  • 1,053
9 votes
4 answers
8k views

How to change Live CD splash screen

I'm remastering the ubuntu CD, I've changed some files in the isolinux folder (access.pcx, blank.pcx, gfxboot.cfg) and I have been able to change the first screen (background color to green): But I ...
jmehdi's user avatar
  • 133
9 votes
2 answers
13k views

What's the difference between installing and trying Ubuntu?

I was wondering what the difference between running and trying Ubuntu and I was also wondering if there was any downfall to running Ubuntu on a USB drive.
Jesse S's user avatar
  • 561
9 votes
7 answers
57k views

How can I create a bootable iso from an extracted Ubuntu 13.04 iso?

I have an extracted copy of Ubuntu 13.04 iso (live CD), but if I burn it directly it will not boot. Is there any way to create a bootable iso so that I can burn it to a DVD or USB flash drive? I ...
Natwar Singh's user avatar
9 votes
3 answers
3k views

Live USB faster than full install

When I run 11.04 from a USB flash drive, it works the way I suspect it should - quick and responsive. With a full install, on the other hand, I click the home button and I have to wait four seconds to ...
nulldozer's user avatar
  • 166
8 votes
2 answers
3k views

Where exactly are programs and files saved on a non-persistent live system?

Recently, I needed to test various kernel boot-options with a live system and had to install a program to check system information on every boot (I did not have a USB drive available and the CD was ...
Prototype700's user avatar
8 votes
4 answers
3k views

How can I install Ubuntu without CD?

My CD drive is broken,so I can't install Ubuntu from a CD. Are there any workarounds for that?
akshatj's user avatar
  • 13.2k
8 votes
1 answer
6k views

How can I create a bootable USB disk from a CD image? [duplicate]

I have a bootable CD image that I would like to transfer to a USB stick, so that I can boot from it. The Startup-Disk creator doesn't support it. How can I make a bootable USB disk from it? The ISO is ...
Alvar's user avatar
  • 17.1k
8 votes
5 answers
9k views

How do I put Ubuntu on a NON-flash external USB hard-drive?

Amazingly enough, circumstances have left me without a single USB flash drive, or a working CD-R drive. Also, because I moved about six months ago, I got rid of all my extra Ubuntu CDs that I used to ...
Jono's user avatar
  • 3,889
7 votes
1 answer
8k views

How can I reset my Windows XP password using a LiveCD?

My mom's ancient Winbook laptop, using Windows XP Professional, was also hooked up to a wireless keyboard and mouse. Unfortunately, this caused it to only accept the account password at the login ...
Knowledge Cube's user avatar
7 votes
4 answers
261 views

Why do things change between using a LiveCD/LiveUSB and installing Ubuntu?

Here have been a couple of weird experiences I've had with a Ubuntu LiveCD or LiveUSB: 1) I had one of the original Chromebooks (CR-48). I ended up wiping ChromeOS and installing only Ubuntu 12.04.0 ...
ahow628's user avatar
  • 71
7 votes
1 answer
19k views

Convert a live CD to a bootable USB

I bought an Ubuntu CD that contains an ISO image file (.iso). I want to install Ubuntu on a netbook and it cannot be done by the CD, so I have to install Ubuntu by USB. How can I convert the Ubuntu CD ...
HoseinPanahi's user avatar
7 votes
3 answers
815 views

Total Newbie confused about partitions

I am totally fed up with Vista, it has 3 different keyboard settings (AZERTY QWERTY and QWERTZ) depending on the software used (or the time of day) and freezes 7 times an hour or more often if it`s a ...
Michele Sabese's user avatar
7 votes
4 answers
4k views

how can I configure my live (x|l|k)ubuntu to: have my username and NOT autologin

I am playing around with the ISO image of a few Ubuntu derivatives - which should be fairly similar to Ubuntu. The version is 14.04.1 64bit. The idea here is to create a custom live USB stick, based ...
nass's user avatar
  • 1,440
7 votes
2 answers
7k views

Difference between Live CD and Alternate CD?

I came across this term Alternate CD. How it different from a Live CD? Also why cant we upgrade using a live cd while we can using an alternate one as mentioned here? The link does not specify ...
Ashu's user avatar
  • 9,472
7 votes
2 answers
4k views

Black screen when booting on a Mac mini 4,1

I have a Macmini4,1 (most recent variant) with a Mini DisplayPort connected to a DVI monitor, and HDMI connected directly to a projector. Both monitors are on but black when booting of the ‘Natty ...
Daniel's user avatar
  • 1,268
7 votes
5 answers
5k views

Why is my Ubuntu 10.10 CD not booting?

I have downloaded Ubuntu 10.10 and burned the ISO but it will not boot. I discarded problems with the ISO, as I've downloaded from the official website with no errors, and burned it with no errors. I ...
The Student's user avatar
  • 11.9k
7 votes
1 answer
366 views

How do I create a customized CD that doesn't display any installation screens?

I would like to create customized Ubuntu installation CD. Here is what I want a customized Ubuntu Installation CD to do: Do not display any Installation Screens of Ubuntu. Manually, set default ...
Yajushi's user avatar
  • 215
7 votes
3 answers
3k views

LiveCD not booting/can't install

So, I got a new laptop some days ago, and as usual I formatted it to install Ubuntu. I downloaded 11.04 and burned it on my pendrive using my old laptop (running 11.04). When I tried to boot from the ...
Julian Fernandes's user avatar

1
2 3 4 5
16