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• Problem with setting up a bootable USB on corrupted OSX

  - by Nick

  I cant access the desktop because my harddrive is corrupted. Therefore I want to make a bootable USB stick so i can transfer all of my important files to my External HD. Problem is that Im stuck on Step 3 --- http://www.ubuntu.com/download/help/create-a-usb-stick-on-mac-osx . Im not sure of what i should change this to: hdiutil convert -format UDRW -o ~/path/to/target.img ~/path/to/ubuntu.iso It says convert failed - No such file or directory. Obviously the problem is that i dont know the path to the USB, maybe you know how to find out? Please help me. Thanks. ps. Ive downloaded the ubuntu desktop amd64+mac. pps. Unetbootin is a different alternative, but i dont know if it works?

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• How do I create a new usergroup?

  - by Sergiu

  I want to do this because I'm trying to fix user permissions from Ubuntu on my Mac OS X partition and Ubuntu doesn't have the "wheel" group that I so desperately need! Please don't trash me for this but I set my whole Mac OS X partition to give read and write access to everyone so I could access and modify everything on it from my dual-booting Ubuntu OS, and now everything is screwed... I don't have the original Mac OS X installation DVD and booting a Mac OS X 10.5.6 DVD gives me kernel panics... The OS installed on that Mac partition is 10.4.11. Is there any hope for me to ever fix it? I don't have money to buy utilities, and I can't use AppleJack either because my permissions are so messed up... None of the posted answers are what I wanted to do. I wanted to add fields to a user that was on my Mac partition, not a user part of the Ubuntu groups. Is that possible?

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• SSD options in /etc/fstab stop machine from booting

  - by nbubis

  I just recently installed 12.10 on a new Lenovo T430, and added these options in \etc\fstab: discard, relatime To \sda1 on which \ is installed. When I rebooted, I got an error claiming that it couldn’t read \, and got thrown into a read-only shell, which necessitated booting from a rescue disk to revert to the original fstab. So: What are the correct options for SSD, and how can I make sure I won't get locked out of the system again?

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• Copy a linux install?

  - by Hailwood

  So short story is that I am wanting to grab my ubuntu install, delete everything from my hdd, repartition my hdd, put my ubuntu install back. Long story is. I finally got my recovery discs, so I do not need to recovery partitions, not the mention my hdd is kinda messy, So I am going to wipe it and put everything back. Thing is I don't want to have to re-install everything, I would rather just copy/paste my ubuntu install if possible. Oh, What I should also mention is that I will be dual booting windows!

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• How to uninstall Ubuntu 12.04 LTS dual booting with Windows 7?

  - by user103799

  I need to uninstall Ubuntu 12.04 LTS from my laptop. It's currently dual booting with windows 7. I've searched and found some ways to do this, but all use some kind of a CD to complete the deletion. I have neither the Ubuntu Live CD nor Windows Install CD/Recovery CD. This laptop did not come with one, and I unfortunately have no available storage device to make a recovery CD. Is there a way to completely uninstall Ubuntu 12.04 LTS dual booting without using any hardware? If there's no way, then how to uninstall using the least hardware possible? Or easy to find hardware? I've nothing against Ubuntu. I installed this as a backup/alternative to error-prone Windows 7. However, after a hardware upgrade, including extra RAMs and a new, better CPU, Windows 7 runs smoothly again. Now I'm running low on hard drive space and need the 40 gig or so of space I partitioned for Ubuntu back. Any help is appreciated, and thanks in advance!

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• Partition Alignment Confusion

  - by user170757

  I have a new Samsung 840 250GB SSD on the way, and I want to make sure that everything is running optimally after install. I've spent many frustrating hours on the internet trying to understand how I should align the partitions of the SSD when it arrives (and even how to partition everything; my other drive is a 1TB HDD with files already on it). I'd like to know a foolproof way of setting everything up. Now, the only place I could find the erase block size of the 840 is here: http://thessdreview.com/Forums/ssd-beginners-guide-discussion/3630.htm I simply can't understand why such information isn't made freely accessible by manufacturers! But, anyway, this would suggest the EBS is 1536kb, which seems odd to me. It is to my understanding that you should now align by MiB (usually set at 1MiB). I assume that the figure above should actually be 1536k B=1.5MiB? This seems to suggest the partition alignment will be somewhat non-standard. So my question is: How do I align my partitions given this information? Please bear in mind that I have never used linux before; I'm doing my best to get everything set up so that I can begin to learn but am finding this process incredibly opaque and time consuming. If possible, a step by step guide through GParted would be great; at the moment I'm considering an NTFS partition ~20GB for Windows (playing games), an EXT4 ~20GB for ubuntu (for doing everything else) and a shared documents+games partition for everything else in NTFS file format. I'm not going to have any swap partition and use swap files instead.

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• Partitoning to install Ubuntu but already have 4 main partitions

  - by Adam

  I want to install Ubuntu alongside of Windows, but there's a 4 primary partitions limit. So there's: BIOS_RVY (10GB) System (100MB) (Windows) (C:) Windows (D:) Data I'm not sure what to do in this situation. This is my girlfriend's laptop and she doesn't want to remove MSI's pre-installed recovery partition, even though I'm pretty sure she's never used it. What is it exactly? Also, does Grub render Windows's "System" partition redundant?

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• Ubuntu 12.04 installation freezes at "Detecting File Systems"

  - by user67970

  I am installing Ubuntu 12.04 onto my system, which I am dual booting an already installed version of Windows 7 with. The installation goes fine until what I suppose is near the end of the entire thing, where it is at the page where it scrolls through the features of Ubuntu. At this point, it is saying: Detecting file systems... It will not go past this point, and it has been at this part for an hour and a half. What should I do to fix this? I am new to working with Linux operating systems, so please help!

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• Can't n run a bootable cd of ubuntu desktop on a laptop with no OS

  - by csbl

  I recorded a bootable CD with the image that I downloaded from the Ubuntu site, using NTI CD MAKER. My laptop had a problem and I prefered to get it fixed without installing an OS. Now, when I try to run this CD it shows the following error mssage: Device driver not found: 'MSCD001'. No valid CDROM device drivers were selected Mouse driver was previously installed A:\> If the drive wasn't working the CD wouldn't even start, I assume....So can anyone help me please! Thank you!

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• How do I scan my windows partition for viruses from Ubuntu?

  - by Alvar

  I think I might have a virus on my windows partition and I want to scan it Ubuntu. Is this possible? I would like a program that is free. clamAV I tried clamAV but I couldn't find a setting for scaning my other partition that I have windows on, it scaned my Ubuntu disk and that was fine. Antivirus Within Windows I can't use my Windows partition since the virus make my laptop freeze every time I log in. And I don't want it to spread or make more damage than it might have done already.

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• Diskless Workstations

  - by guettli

  I want to run diskless booting with PXE. The gotchas at the end of the Diskless-Howto[1] is quite long. I am unsure how to get this done. Here are my current possible solutions: use debian live and not ubuntu use aufs [2] The How-To states "confirmed to work with Ubuntu 12.04.". But maybe I am doing something wrong, I don't think it works this way for several diskless clients sharing one nfsroot. What is the most painless way to get diskless workstations? PS: I can't create the new tag "diskless". Please create and add it. Thank you. 1: https://help.ubuntu.com/community/DisklessUbuntuHowto 2: https://help.ubuntu.com/community/aufsRootFileSystemOnUsbFlash

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• Various crashes in 12.04 after upgrade and fresh install

  - by stefan

  Ubuntu drives me crazy. Since I upgraded from 11.10 64-bit to 12.04 Ubuntu crashes regularly. One time the crash report tells me that Skype is the faulty app, another time it was Opera, and today the crash report tells me Xorg crashes. I read that it can be caused by a faulty upgrade so I made a clean new installation of 12.04 32-bit. But the error is the same. I had a look in the log files with a friend but we did not find a answer. This morning the crashes happened like this: Boot Auto-start Thunderbird Start VLC for radio Start Opera Working a while (30 minutes) Starting Skype 2 minutes later, the system freezes, the monitor turns black, a login screen appears and I enter my password. The desktop comes up again and the crash report pops up.

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• Ubuntu 13.04 is showing some error while opening my computer

  - by Singh

  Few months before when I was using Ubuntu 12.04 then I found some errors while starting my computer. Due to this problem I had given my CPU to a shop to repair it I don't know what he has done to my CPU but I only know that finally I got my CPU with Ubuntu 13.04. The technician was unable to make any partition and I also think that he had installed 13.04 over 12.04 and so now my computer is showing some error when I'm starting my computer the error is as follows: error: attempt to read or write outside of the disk 'hd0'. grub rescue _ Before showing this error, few times my computer was working very slow. So kindly someone tell me that is there any way by which I can start my computer. Please also tell me that what things I have to keep in mind while using Ubuntu so that in future I find no difficulties(errors) while using Ubuntu.

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• How to migrate from Wubi to a regular installation?

  - by schwiz

  I recently installed Ubuntu through Wubi and I love it enough that I am ready to ditch Windows! My set up is like this: Drive 1: 80 GB SSD Windows 7 Drive 2: 320 GB HDD Ubuntu (installed through Wubi) Drive 3: 1000 TB NTFS media drive What I want to do is move the Ubuntu installation from the 320 gig hard drive to my SSD and totally get rid of Windows. Would be great if I could preserve my current Ubuntu install during the process since it's finally working. :-) Thanks!

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• Terminal doesn't see Windows filesystem until I open in Home Folder GUI

  - by yeenow123

  I'm currently dual-booting Windows 7 and Ubuntu. When I try to access my Windows HD through the terminal I can't find it. However, I used the Home Folder application to see where those drives/folders were. And after I clicked into it in the Home Folder, I looked again at the same folder in the terminal and it appeared. Is there a reason for this and how can I set it so I always can see those folders?

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• Ubuntu freezes when gdm starts

  - by Enrique

  I have Ubuntu 10.10 (upgraded from 10.04) I was browsing in Firefox yesterday, then the PC suddenly did a reset Once it restarted, everything went normal until gdm begun showing. Then everything froze and locked when userlist showed. I can't move mouse pointer nor do anything with keyboard at this point (just after userlist shows in gdm). PS: Both, mouse and keyboard work fine, because this Ubuntu is dual-booting with a Windows XP install which loads/works fine. Here is my .xsession-errors file, but I don't have a clue what may be wrong. Thanks http://pastebin.com/GVtneEAF

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• I have Ubuntu 12.04 installed on my pc and the pc hangs and does not restart more (translated)

  - by adail

  Translated from google My pc is an intel atom + Yes, it came with windows 7, formatted and installed Ubuntu 12.04, but the pc is unstable, it will not turn off properly and alone, appearing msg that there is no image signal, what to do? Meu pc é um Sim+ intel aton, veio com o windows 7, formatei e instalei o ubunto 12.04, mas o pc está instavel, ele não liga corretamente e desliga sozinho, aparecendo a msg que não ha sinal de imagem, o que fazer?

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• Really weird situation with Swap that refuses to work

  - by Ghost

  So I decide to move my Swap partition to another HDD to make hibernation more fast, I create a partition with a liveUSB, do swapon, and then hibernate just disappears I go into the terminal, reactivate hibernate (so the button shows) for some reason the swap wasn't "on" so I do swapon again. Still not working. I go back to the terminal and edit the file with the UUID of the new swap partition. The partition shows as swap on gparted, it's on, the file has the right UUID, even the task manager shows a swap area of 10GB, and there is a hibernate button on the shutdown window. But it-wont-hibernate! What's going on?

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• Keep trying to install always throws error help!

  - by Hector Soto

  So I was installing 12.10 on my Asus g74sx laptop... Did everything the tutorial told me to do yet I keep getting an error saying that there was an error of input/output.. That I should check the hard drive and see if it needs replacement. I tried with 2 DVDs and did format twice my usb to fat 32 and mounted the image file for 12.10... No idea what is going on. Please help! Mmm I cannot add an image... I'll comment with the link to the error!

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• Starting problem fresh installed 12.10

  - by Emir Bulic

  I have downloaded ubuntu 12.10 image recently,and burned it to disc to install on my laptop everything worked fine until now,when i started it first time it got stuck on loading (Ubuntu title and dots below) i tried restarting and it got through,but new problem appeared After typing my password and logging in,it just freezes there with background and mouse pointer only visible.i can start terminal with ctrl alt f4 but thats all then after few mins,error comes up saying that application compiz has closed unexpectedly.whatever i click (relaunch or leave closed) it just stays frozen with background only.

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• My partition table is facing limitations; having problems creating more partitions

  - by Terence

  I first noticed an issue when trying to install Linux Mint 14 as a third OS alongside Ubuntu 12.10 and Windows 7 - I was unable to create another partition to install Mint to. Poking around, I realised that I had reached the limit of primary partitions: (from left to right of the table) 1) a ~100 MB primary partition that I meant to use for storing Grub files but never got down to, 2) a 25 GB extended partition, with the entire partition containing an ext4 Ubuntu partition, 3) a ~513 GB partition containing Windows 7, 4) some ~50 GB of unallocated space, and finally 5) a 4 GB swap partition. I decided to wipe off the first ~100 MB partition, which I didn't need anyway. This brought me to a dilemma, however: as Ubuntu, during initial installation, had created an extended partition for itself, which meant that I could not create any more. Having an extended partition for Ubuntu is virtually useless as there is only enough space to contain Ubuntu itself, and the benefits of extended are worthless here. And if I go ahead and install Mint now, I would face the same issue of too many primary partitions in the future should I want to create any more. What I'd really like to do is this: convert the current extended partition into a normal primary partition, and create a new extended partition in the unallocated space for all future partitions. Is this possible, and if so how? Thanks in advance!

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• Any benefit of /home Ubuntu partition

  - by nightcrawler

  I want to have dual OS of Win8 & Ubuntu 12.10. Provided that Ubuntu can access ntfs partition of Windows but same can't be said about Windows this leads to a question mark on the significance of having /home partition while installing Ubuntu. As far as I know /swap & / are the two partitions directly used by Ubuntu to store programs, installation & stuff while the documents/media resides in /home. Now because Ubuntu releases are more frequent than Windows & updates needs backup & relate stuff, so I came to decision to not to use /home at all, rather keep all my documents/media in ntfs, which would be untouched while upgrading Ubuntu as Win updates are once in a decade! Is my thinking correct? If yes, what would be the minimum space I should allot to /home plus how much I should allot to / one must know that I plan to use heavy applications like Maple, Matlab & Sagemath on Ubuntu.

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• How to fix "The system is running in low-graphics mode" error?

  - by jokerdino

  Note: This is an attempt to create a canonical question that covers all instances of "low-graphics mode" error that occurs to a user, including but not limited to installation of wrong drivers, incorrect or invalid lightdm greeters, low disk space, incorrect installation of graphics card like ATI and Nvidia, incorrect configuration of xorg.conf file while setting up multiple monitors among others. If you are experiencing the "low-graphics mode" error when trying to login but none of the following answers work for you, please do ask a new question and then update the answers of this canonical question as and when your new question gets answered. When I try to boot into my computer, I am getting this error: The system is running in low-graphics mode Your screen, graphics cards, and input device settings could not be detected correctly. You will need to configure these yourself. How do I fix the failsafe X mode and login into my computer? Answer index: The greeter is invalid

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• ubuntu installtion problem

  - by yogi

  I have one machine in which Windows8 is already installed and having 3 partitions(one for windows OS). Now i wanted to install Ubuntu12.04, i have tried many times but ubuntu 12.04 installer not able to fine those partitions, even it is not recognise windows partition. please refer the images and please help me to solve this issue. Somehow i am not able to update images so i am just explain here. "Installation type " window - this window only shows two options 1)Erase disk and install ubuntu" 2) Something else * here there is no option for "Along with windows 8" option and in second window of "Installation type" it shows Device : /dev/sda freespace 500107 MB *there is nothing else. but i reality there is three partitions and i wanted to install Ubuntu in other partitions. I don't formate windows8. I am new with Ubuntu so please help me to install Ubuntu. Thanks.

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• Advice on triple/quadruple-booting?

  - by professorfish

  I am currently running Windows 7 Home Premium x64 on my laptop. I would like to install more than one Linux distro, IN ADDITION TO Windows 7. How do I go about this, what do I need to be careful and aware of, is it possible? The specific distros I might eventually install: Definitely: Ubuntu (is it a good idea to install the Linux-Secure-Remix version?) Almost definitely: OpenSUSE Probably: Zorin Possibly: Arch Possibly: Fedora Possibly: FreeBSD Computer details: Successfully used WUBI for Ubuntu in the past Recently reinstalled Windows using the RECOVERY partition Windows 7 Home Premium x64 model: ASUS K53U series AMD Brazos Dual Core E450 1.65 GHz 750GB hard drive, currently partitioned into C: (300GB total, 246 GB free), D: (373GB - total, 167 GB free), and RECOVERY (the rest of the space, I think) 4GB RAM Can I be sure that GRUB will work, if WUBI has worked? In short, how do I go about triple- or quadruple-booting Windows 7, Ubuntu and other distros? What do I need to be aware of? How do I set up the partition structure? Thank you in advance

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