Questions tagged [live-cd]

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

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62
votes
8answers
296k 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.
56
votes
5answers
13k 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 ...
33
votes
5answers
20k 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?
26
votes
7answers
68k 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=/...
21
votes
4answers
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 ...
21
votes
2answers
630 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. ...
20
votes
6answers
25k 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". ...
18
votes
3answers
45k 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?
18
votes
5answers
544 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
4answers
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.
14
votes
3answers
8k 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?
14
votes
4answers
520 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 ...
14
votes
3answers
20k 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 ...
13
votes
6answers
14k 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 ...
13
votes
1answer
6k 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? ...
13
votes
4answers
44k 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 ...
12
votes
4answers
154k views

How can I create a LiveCD/LiveDVD/LiveUSB?

How can I create a Ubuntu LiveCD/LiveDVD/LiveUSB?
12
votes
2answers
33k 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 ...
12
votes
5answers
11k 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 ...
11
votes
2answers
63k 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 ...
11
votes
2answers
15k 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....
11
votes
4answers
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 ...
10
votes
6answers
43k 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 ...
10
votes
2answers
2k 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 ...
9
votes
1answer
63k 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
9
votes
2answers
17k 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 ...
9
votes
3answers
46k 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: ...
9
votes
2answers
4k 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.
9
votes
1answer
62k 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 ...
9
votes
1answer
6k 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 ...
9
votes
3answers
2k 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 ...
8
votes
2answers
2k 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 ...
8
votes
4answers
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?
8
votes
1answer
5k 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 ...
8
votes
4answers
7k 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 ...
7
votes
1answer
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 ...
7
votes
4answers
241 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 ...
7
votes
2answers
63k 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 ...
7
votes
1answer
18k 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 ...
7
votes
3answers
766 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 ...
7
votes
2answers
3k 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 ...
7
votes
5answers
4k 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 ...
7
votes
1answer
334 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 ...
7
votes
3answers
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 ...
6
votes
5answers
6k views

Is it possible to burn a 64-bit Ubuntu Live CD on a 32-bit computer?

My wife has been using Windows Vista on her computer, and it has finally borked bad enough that she is willing to try Ubuntu. The system is pretty much unbootable as far as I can tell, and I need to ...
6
votes
1answer
1k views

Why isn't Ubuntu delivering USB images instead of ISO ones?

So far Ubuntu (and derivatives) has been delivering ISO images to be burned onto optical media. Then there's a tool (usb-creator) to "burn" those ISOs onto USB drives. I could be wrong, but I think ...
6
votes
3answers
10k 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?
6
votes
2answers
31k views

Is it possible to use an Ubuntu Live CD and run GParted to partition a my HDD (including the partition that is usually mounted on a given system)?

I'm encountering a problem with my HDD's partitions and can't resize it. I've described my problem and my system here: https://askubuntu.com/questions/89427/gparted-0-3-encounters-problem-with-file-...
6
votes
2answers
39k views

How do I get root access to hard drive from livecd?

Ubuntu 11.10 has faffed up on me, It wont let me get passed the login-screen ( i have been searching around online the last two days and none of the proposed solutions worked) as at this point I don't ...
6
votes
4answers
4k views

Are there any Live CD versions of Ubuntu any more?

Is there a CD version that lets you boot without changing anything on the HD's? Everything I find is to big to fit a 700MB CD. I have an old server that crashed and it only has a CD ROM. I've tried ...

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