General :: Dd Command Not Working While Creating Live USB
Feb 5, 2011
I want to create a Live USB ..I have the ISO image in the hard disk
Where Sdb is my USB
The copy operation is okay...It says no of records in / out and gives the statistics
But when I boot the system , getting the error:
Boot :
In some cases , the USB itself is not recognized by BIOS at boot..
My BIOS supports boot from USB ..I have Boot order 1. CD/DVD 2. USB 3. HDD
Also what is the filesystem to be adopted for dd?
I usually format using FAT or FAT 32
1.mkfs.vfat /dev/sdb -I (or)
2.mkdosfs /dev/sdb (or)
3.mkdosfs -F 32 /dev/sdb
What is the correct way of partitioning USB drive? - FAT or FAT 32....Most Live USB creators (unetbootin/LiLi Live/Usb Creator) recognize only FAT32...
I dont want a Linux filesystem (ext2,ext3 or 4or reiserfs)for my USB as it is not portable across many systems as MS OSes do not read them..Also I had little success in booting a USB when I partitioned it using ext2..I read somewhere that ext2 will not reduce the life of the USB drive compared to other fs.
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Oct 29, 2010
i have server with rhel3 ES. in folder "/lib64/tls" there is one file named libc.so.6 which is softlink of libc-2.3.2.so. i just copied libc-2.3.4.so from rhel4 AS server to rhel3 server in the same location and override the softlink libc.so.6 as a softlink of libc-2.3.4.so. now no any command is working in this server i.e.(cp,vi,rm mv ls etc.). it is also not opening any terminal and nothing command is working.
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Oct 26, 2010
I am looking into creating my own terminal command from scratch. I researched online for some information on this subject was only able to view stuff related to OS X. I understand that they are both Unix based, are they both similar in creating these commands? Basically all I would like is for someone to point me towards the right direction to start or complete this task.
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Mar 9, 2011
I encountered a question in the Redhat Skills Assessment regarding useradd: Which of the following cannot be defined when you create a user account with useradd?
a* A password expiration date.
b* The user's primary group.
c* The user's default shell.
d* The user's NIS or LDAP group.
e* The user's home directory.
Which is the correct answer? I have my own thinking which will be explained later.
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Sep 4, 2010
I would like to create the shell which would support the LS command in C++. And the way the command prompt can be changed.
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Jan 16, 2010
I'm trying to create a user john with default password 'abcdef'. I used the following command.
useradd john -p abcdef
I can't login with the password. in /etc/shadow file I can see the password in clear text format. how I can create a user along with password.
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Jul 26, 2011
I recently used the newusers command to generate several user accounts from a text file. That process seemed to go well until I tried to su into one of the new accounts.
This behavior appears for all the accounts that were created from the text file and the newusers command. It seems that several configuration files that should have been autogenerated for these new users were never created. I was able to confirm this was the problem by copying .bashrc and .bash_profile from a user that was created with the "useradd" command into the /home/newaccount directory. After logging off and logging into the newaccount again, the issue is corrected.For the record, I just read this forum post and I'm looking for an alternative to this. If this is the most efficient way to accomplish my goal, then I'll try the route mentioned in the thread. I'm still open to alternatives.
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May 8, 2010
I can do:mkdir messages and then: touch messages/hello.txt Is there a command that will do both - create the directory if it doesn't exist, and then the empty file? Something like: touch -p messages/hello.txt
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Feb 27, 2011
I'm wanting to make a DSL live boot to run on an ancient laptop. I can't find a live USB creator that will do this for me in Fedora.
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Mar 6, 2010
I am in the tasks section of the following tutorial [URL] I did the list package thing to see what packages there are. However now I cannot leave the list in order to run the purge command. How can I get back to the previous section so I can remove packages from the custom live cd. I want to make sure I am editing the live cd and not the current install. I am going to make two images. One cd that will still have a gui but I plan to build as a recovery tool. The other one is a dvd and will be for installing everything I want on any machine. I am doing the tutorial with Karmic. Also I have cursors, themes and icons I installed from gnome look. I then went to customize and created my own personal mix I like. I would like to make this a standalone theme and come as the default theme on the live cd and dvd. I have no clue what I am doing, however wish to learn to build my own custom live cd. Also I would like to know how to ad repositories to the live cd and how to add programs pre installed that are not usually included.
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May 5, 2010
I've been unable to do a fresh install of XBMC Live 9.11 to my hard drive. Everytime it fails at the Install System step. But I am able to get XBMC Live 9.04.1 to install successfully. How do I upgrade XBMC Live 9.04.1 to 9.11? I understand that Ctrl+Alt+F2 brings up the command line, but what are the next set of commands to run?
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Jul 12, 2011
i feel like this is a stupid question as i have seen many different ways to make a debian live cd, but the only way i understand is remastersys.i am trying to make a snapshot of my own debian unstable (sid) to be capable of re-distribution. remastersys will ONLY work on ubuntu, lenny, and squeeze.if anyone knows of any relatively simple tools i could use or could write an easy how too that would be very much appreciated. i am attempting to stray away from ubuntu and ubuntu based distros and use debian instead, although i cant find any distribution based on debian that i really like (maybe linux mint debian edition based on debian testing), but i really want the software right out of unstable (sid) and i would like to be able to make a distribute-able snapshot for myself and others that may be interested. (xfce + compiz + others, hopefully plymouth, out of the box). i have made some very good headway on this, but i dont know how to make a live cd out of an installed system without remastersys.
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Feb 24, 2016
I'd like to create my own custom Debian live CD — the idea being to have my own rescue CD with my favorite Debian tools installed. I read about bootcd and was going to give that a try, after creating the ideal system in a qemu virtual machine.
How much exactly can you install on a system so that bootcd can still fit it on a CD? I'm presuming there is some kind of compression involved. When I tried to create my VM, I coudln't get Jessie + LXDE to install onto a 2GB virtual drive (net install) so naturally I'm wondering what I'm going to be able to put on a 700MB CD.
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Apr 25, 2011
I am using Fedora 14. I want to create custom live cd in Fedora 14. I saw this fedora site. [URL]. But its only used command line tool. Any GUI tools are available to create custom live cd in Fedora.
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Nov 9, 2010
I can't seem to find this anywhere. I have burned Debian 5.06 for i386 and trying to login when running the live cd. What is the username and password to get in?
edit....
I found 'user' and 'live' but they don't work.
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Sep 3, 2010
Couple of days I go I setup VLC using Kubuntu's graphic software manager, and installed the 3 plug-ins, one of which was related to pulse. After doing this sound stopped working in flash videos. I had read, not sure where, that Kubuntu didn't use pulse (which slipped my mind when setting up VLC).
So I make the mistake of removing everything which had pulse in it's name (again, via the graphic software manager). A message popped-up saying that some packages needed to be removed/edited (a LONG list, a big clue that I was doing something stupid I guess). I let it run it's course and after that it won't boot properly.
If I boot it normally it hangs at the Kubuntu screen with the five dots filling endlessly. If I press F1 it's stuck at "checking battery status."
Recovery mode boots, but the recovery option does nothing.
So I was wondering if I could boot into recovery mode and go into the terminal and add a live USB as a repository for apt, and try to salvage the install?
Or should I admit defeat and reinstall?
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Apr 8, 2016
I'm trying to rebuild an old laptop, EeePc 1001PX and I've issues to boot on the usb on it.
I've followed [URL] .... and the only way I manage to make a usb key that will boot is by hd-media/boot.img.gz:
Code: Select all# zcat boot.img.gz > /dev/sdb
# mount /dev/sdb /media/usb
# cp /tmp/debian-8.4.0-i386-CD-1.iso /media/usb
# sync
# umount /media/usb
I managed to install Debian using this technique to build the usb key.
However I'm having an issue on the laptop with the wifi card (Atheros AR9285) and after a night trying to make it work I'd like to check if I'd would have the same issue Ubuntu.
So I've been desperately trying to make a bootable usb key with Ubuntu on it.... It boots on my laptop but not on this EeePc...
I've tried:
Code: Select allcat /tmp/myimage.iso > /dev/sdb
Code: Select alldd if=/tmp/myimage.iso of=/dev/sdb && sync
I've installed multibootusb [URL] ... and liveUsb install [URL] .... which doesn't work on my EeePc...
Wh only this technique of using is hd-media/boot.img.gz is working on that laptop?
I'd like to try to install Ubuntu via grub using a partition [URL] .... but I need to create 2 partitions and so to boot on a external system.
I've downloaded gparted-live-0.25.0-3-i686.iso but like with Ubuntu I don't manage to create a bootable USB key for this crappy EeePc.
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Apr 23, 2010
I want to create a LiveDVD with lots of packages that do not exist in repos. Stuff that I built from source...
OpenFOAM with my own customized solvers and utilities, Tetgen, Netgen ,GMSH with OpenCascade support, BRL-CAD, Code-Aster, Salome Platform, Code Saturne, FreeMat, K3d...
Some of these apps have been compiled with Intel development toolbox, icc/ifort/mkl. Mainly scientific/Engineering stuff. How do I include all these packages in a custom Live Build...?
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Apr 28, 2011
Live CD: I dowloaded the ISO, burned it to CD, booted from this CD. It starts to load and I can see the purple background with the loading icons. Everything seems normal. But instead of ending up with the login screen, it ends up with a screen that says 'Please remove all bootup media and hit ENTER' or something like this. So I hit enter and then it shuts off my computer. That's it.
Live Stick: So I tried another option and created a stick with 'usb-creator.exe' that is on the CD. Then I start from that stick, but all I end up is a line of 'Syslinux bla bla copyright 20xx-2011'. That's it. Then it does nothing anymore. The cursor is blinking, but no prompt or whatsoever and keyboard input doesn't do anything.
Now something weird: When I insert Live CD and Live Stick at the same time and then boot my computer, then it boots into Ubuntu. Obviously it loads the first parts from CD and then the rest from stick. Because when I'm then in Ubuntu and try to format the stick, it says it can't do so, because there's system files from that stick in use.
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Jan 5, 2011
What's a good linux command line utility for watching a log file live? It's probably obvious but I totally forgot it.
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Feb 25, 2010
OK. I've successfully mirrored the Karmic Koala repositories. Now I have, and will have as time goes on, various computers I'll want to install Ubuntu on and point at the repository mirrors (Karmic now, Lucid later). Can I create a modified Live CD that will set up out computers from the beginning with /etc/apt/sources.list pointing at our mirrors, so we don't have to edit it later or tell people to edit it later? I've looked around and not found instructions on how to do it so far.
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Feb 16, 2011
I am trying to create a custom Ubuntu live CD according to this guide [URL]. First of all I wanted to test how mkisofs utility works so I copied the content of the live CD to /tmp/bootcd directory and create an ISO image. I ran the following commands
Code:
sudo rsync -av /media/CDROM/* /tmp/bootcd/
cd /tmp/bootcd
sudo mkisofs -r -V "Ubuntu9.10" -cache-inodes -J -l -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -o ../ubuntu-9.10.iso .
If I understand it correctly, the same image as the source one should be created. When booting the Ubuntu boot menu appears and I choose "Try Ubuntu without installing.." It gets stuck after a while with this message "Unable to find a medium containing a live filesystem".
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Mar 9, 2010
I would like to a build a CD image (of CentOS 5, x86_64 that loads into memory and boots to the OS without installing anything to hard drives. Then I would like the system to execute a shell script automatically. The shell script will have commands that will control execution.
The goal of this exercise is basically to pre-configure a system (RAID config, BIOS update, etc) automatically using the shell script before installing the OS. I would like the ability to change the shell script as needed and probably repackage the ISO image. I would prefer not to deal with building a source tree to accomplish this. this is something one could do using mkisofs.
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Jan 30, 2010
I am going to reinstall my GRUB bootloader and some one said do the followings:
But when I type "sudo grub" in terminal it gives this error: "sudo: grub: command not found"
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Jul 30, 2010
In my college many proxy : port (like 144.16.192.245:8080)are using to get Internet connection, performance of each proxy changes, how can i decide which one is working well at particular time. is there any way to switch over them automatically?
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Aug 18, 2009
I want to run a linux command with apache through web browser and that's is not working. and it's working properly when I execute this command through terminal, where is the problem?
NOTE: apache have the privileges to execute the command
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Feb 6, 2010
Is it possible to create a new command prompt in Ubuntu? I have a assignment and I don't fully understand it. I have to make c files and then open them in the command prompt. Would this happen in a new command prompt or I'd have to use the already existing one? Is this even possible?
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Sep 15, 2010
rying to find a way to generate a PDF file from a text file in a command mode (X is not installed). Is there a simple way to do that?I don't need anything fancy - no special formatting and no images to include, just simple text converted to a PDF format
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Jul 11, 2010
I have a file having name test.txt content of which is following My Self is Arvind Kumar.My Date of Birth is 21/07/1984.I am 26 year year old.I did M.Sc Informatics from Delhi University in 2008.I did B.Sc Electronics from Acharya narendra Dev college Delhi University.I did my schooling from DAV Yusuf sarai.Curren tly I am working with InterGolbe Technologies as a Associate software Engineer.I want to be Linux Expert. What I am doing I am creating a list of words,But i want to take B.Sc and M.Sc as a single word
[Code]....
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May 12, 2011
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