Questions about the bootup process in Ubuntu. Use this tag if you have trouble booting Ubuntu or you have questions about the bootup process.

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1answer
4k views

Insmod error in grub: symbol not found:grub_realidt

I have a dual boot PC with Windows 7 and Ubuntu. I upgraded from 12.04 to 12.10 and then to 13.04 and since then I have not been able to boot because the PC goes into grub rescue with the error "File ...
2
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1answer
2k views

Grub “quiet splash” + linux-image-3.2.0-40-generic + full disk encryption = boot failure

From this morning the boot process on my laptop is no longer working. The only relevant change from yesterday (when all was working fine) has been a kernel update (from 3.2.0-39-generic to ...
2
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1answer
54 views

Need to know what program is writing to the console on start, logout and shutdown

I would like to know what program is responsible for writing messages to the console during the start, logout and shutdown process. What I'm referring to is that black console that comes out and spews ...
2
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1answer
101 views

Why does Ubuntu always boot regardless of boot priority?

I am running Ubuntu 12.10. I thought I had installed 64-bit but somehow I had installed 32-bit. I wanted to install 64-Bit Ubuntu over the current installation with my flash drive but whenever I ...
2
votes
1answer
2k views

Problem booting after latest software update.

I have a Desktop i7 with an ATI HD6990. After the last update, my system is unable to boot properly. All I can access is a terminal. I can't access my files. Is everything lost? Here is a video I ...
2
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1answer
641 views

Installing Ubuntu on a Windows 8 UEFI laptop?

I have created an USB installer with UNetbootin for Ubuntu 12.10 Live (I'm not sure if that is the right one for this) I disabled Fast Boot, but I didn't change UEFI to Legacy because nothing will ...
2
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1answer
278 views

Boot my Mac into External USB Ubuntu Server 12.10

I recently downloaded ubuntu server 12.10 and created an install disk. I then proceeded to boot into the disk and install the server onto an external usb flash drive. After the installation was ...
2
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1answer
311 views

Failed getting dual boot with Windows 7 and Ubuntu 12.10, 64bit

I'm very new to Linux and Ubuntu so I'm not very technical able in Ubuntu. I have Windows 7 already installed. For a few weeks I booted Ubuntu 12.10, 64bit with a LiveUSB. I was able to save items ...
2
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1answer
277 views

How do I remove any data from a LiveUSB with data persistence?

I have miss-configured my LiveUSB installation and now when I run boot from it I get an error. How can I erase LiveUSB data? Can it be done from the booting LiveUSB menu? For some weird reason ...
2
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1answer
144 views

Does not finish booting from USB

While following the instructions here (either 12.10 or 12.04) It begins good. Brings up the selection menu to boot from USB or to install. Then starts booting fine but never finishes. It gets stuck on ...
2
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1answer
374 views

Should media files (HTPC) using NFS mount using fstab/static or autofs?

I'm using Ubuntu 12.04 with XBMC and am streaming media files from my fileserver (mounted using NFS). Right now I have fstab configured to mount my NFS share like this: 192.168.0.99:/tank/media ...
2
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1answer
216 views

Many problems booting / shuting down ubuntu 12.10

I installed Ubuntu 12.10 about a month ago, and since then it's been some kind of a nightmare! not listing all the issues I had to face, now I have this weird behaviour that really bugs me: when I ...
2
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1answer
302 views

Ubuntu 12.04 directory is full and won't boot

I tried to restore some permanently deleted files from my external hard drive the other day, but I didn't take into account the fact that my home folder had not so much free space left and now it's ...
2
votes
1answer
3k views

Unable to Boot: error couldn't read file

I have installed Ubuntu 12.04 LTS on an IBM Thinkpad T41. Up until Linux 3.2.0-30 generic everything was working fine. I accept all the software update. With 3.2.0-31 generic the machine freezes ...
2
votes
1answer
174 views

Display issues when logging in

I have installed Ubuntu 12.10 on my PC alongside Windows 7 option. All seemed to be working fine. I installed Chrome and FileZilla, installed updates which had downloaded during the install, ...
2
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1answer
833 views

Can't boot Windows 7 after installling 12.04 on HP 6735s laptop

I installed 12.04 through a USB drive and when it's done I can't load Windows 7 (Loader)(on/dev/sda1) in GRUB. When I select that, it displays a black screen and then returns to GRUB but I'm still ...
2
votes
1answer
551 views

Ubuntu Server 12.04 start fails after update

I did an system update on Ubuntu Server 12.04, which requested a reboot. Since that, the system never reaches the login. It hangs on: mount: mounting /dev on /root/dev failed: No such file or ...
2
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1answer
242 views

booting into 12.04 results in a purple sceen for just a second.

I have a vanilla Ubuntu install running on an Ivy-Bridge ultrabook that is using Intel 4000 graphics. I have enabled autologin via a line in the lightdm config file. My boot is very fast, however, it ...
2
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1answer
1k views

cannot log into Ubuntu 12.04.1 LTS after startup

I recently installed 64bit Ubuntu 12.04.1 LTS on my Inspiron 1720 laptop as a dual-boot with Windows 7. When I boot up Ubuntu, it gets to the log in screen just fine but after logging in it gets ...
2
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1answer
57 views

Is it possible to run an application as superuser within boot without input?

I have an Ubuntu 12.04 Desktop machine running as a server with no input devices accessible after initial setup. I need to place any application that I want to run within the boot process. I have one ...
2
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1answer
488 views

12.04 Suspend not working proper

Okay I may have a strange issue. I can suspend my session and the computer will suspend as normal i.e I can press my power button and the computer will come back to my session. However, when I leave ...
2
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1answer
1k views

Failure to boot from USB

I have created a USB live disk and am trying to boot from it. The computer Im using to learn Linux on is a Dell Optiplex 755 4gb ram C2D 3.0ghz and Im running windows 7 ultimate without any problems. ...
2
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1answer
730 views

Can't Install Ubuntu 12.04 on New Machine

I built a new system with the intent of using Ubuntu 12.04 as my primary OS, but I am unable to install it. Every time I boot, the splash screen with the options to try or install Ubuntu appears as it ...
2
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1answer
258 views

Problem with automatically booting

After upgrade from Ubuntu 11.10 to 12.04 I am unable to get Ubuntu to automatically boot. Even when I set grub.cfg as follows: GRUB_DEFAULT=0 GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true ...
2
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1answer
1k views

Why does my Live-USB fail to boot with “Syslinux…”?

I having trouble getting to boot from a Live USB pendrive explained in Ubuntu.com website. I downloaded various ISO images and only had success in booting from Live a CD or DVD. I've gotten newer ...
2
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1answer
431 views

Ubuntu Graphics Card boot issue

I upgraded to Ubuntu 12.04 because Gimp wouldn't install on 11.10. Said some conditions were not fulfilled. I upgraded and the graphics went for a toss. I was told by a friend to install the OpenGL ...
2
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1answer
908 views

unable to boot from live USB

Edit: Welp, I re-made the live USB and now it works fine. Thanks for the replies! Another computing lesson learned the hard way. I was messing around with my new dual-boot (win7 and the latest ...
2
votes
1answer
838 views

Dual boot ubuntu 12.04 and Mageia

I am new to Linux, and I am currently using Ubuntu 12.04. I would like to set up a dual-boot of Mageia 2 and Ubuntu. Should I install Mageia first so when I install Ubuntu I can use GRUB2? Will it ...
2
votes
1answer
1k views

Boot in whatever mode won't work for 12.04

When I boot in recovery mode I get a black screen with the mousecursor and that is it. When I boot in normal mode I get the purple Ubuntu screen with the five orange/white dots and there everything ...
2
votes
1answer
1k views

NFS /exports/media won't automount during boot

I'm using Webmin 1.580 with Ubuntu 12.04 and created an NFS export (export/media) which works perfectly fine after manually enabling the export, but when I reboot the system it tells me that it is ...
2
votes
1answer
456 views

Odd red pixels appear all over screen

When attempting to boot Ubuntu/Xubuntu/etc from a LiveCD, my screen displays "color scrambled" random pixels for a few seconds after the loading screen with the 5 dots, and then turns completely black ...
2
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1answer
337 views

How do I restore the original Grub2 boot loader?

I wanted to try out the Burg boot loader, so I typed in the following commands: sudo add-apt-repository ppa:ingalex/super-boot-manager sudo apt-get update sudo apt-get install burg That was ...
2
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1answer
169 views

I can not try Live CD

I inserted Boot CD into drive and choose "try", but monitor appears many horizontal lines passing through. My laptop is WolfNFox, win XP SP1. Can you help me?
2
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1answer
716 views

Dell Inspiron m5030 boots to a black screen with a mouse pointer

I have a dell inspiron m5030 and i have successfully installed ubuntu 11.10 64-bit. Whenever I boot with ubuntu it boots to a black screen with the mouse pointer, or the default background with the ...
1
vote
1answer
12 views

Ubuntu 14.04 doesn't boot on Sony Vaio pcg7l1m

I want to install Ubuntu 14.04 on my Sony Vaio PGN7L1M. My CD drive doesn't work but I have an external connected. I have a boot DVD and a boot USB. Neither will boot. The booting options I can choose ...
1
vote
1answer
10 views

How can I set up muti-booting by grub on a usb with different OS .

How can I set up multi-booting by grub on a usb with different OS . The purpose is I want to choose the different OS when I plug in the USB.
1
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1answer
83 views

Ubuntu 14.04 booting system without full network configuration

I've messed around with my network settings lately and I have no idea what I've done, but now my wifi doesn't seem to be working right. When I boot my system up I get the message booting system ...
1
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1answer
49 views

Ubuntu Splash Screen Background

I am not new to Ubuntu or anything, but I am just wanting to dabble a little deeper into Ubuntu's Inner workings. I was wondering if somebody could tell me how I can set a picture as Ubuntu's Splash ...
1
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1answer
105 views

Cannot boot into Windows 8.1 after “Trying Ubuntu” from a USB stick

I'm a student who wants to get his feet wet in Linux so I thought I would try Ubuntu. I downloaded the 14.04.1 LTS from the Ubuntu site and created a USB stick with it. I also disabled fast boot in ...
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1answer
52 views

After downloading Ubuntu installer, it asked me to reboot for install. It shut down and seemingly rebooted into a black screen!

So for my recent project I decided to install Linux Ubuntu on a separate 60GB SSD to dual boot with Windows 8.1. Once I went on the official Ubuntu website and downloaded the free version of Ubuntu I ...
1
vote
1answer
26 views

What after GRUB menu?

I have bought a laptop with pre-installed windows 8.1 After following all the steps from this article. (Installing Ubuntu on a Pre-Installed Windows 8 (64-bit) System (UEFI Supported)). I tried to ...
1
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1answer
84 views

System program problem detected showing at boot

I have been facing this dialog for a long time lately. Though I've gone through multiple reinstalls of the system,the system program problem detected still keeps appearing after every boot. Plus after ...
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1answer
161 views

Dual boot Windows 8.1 Ubuntu EFI GPT: rEFInd won't start automatically

My machine is an HP DM1-4341sa netbook which came with Windows 8. I've since wiped the disk, changed the disk type to GPT and clean installed Windows 8.1 from ISO, leaving space at the end of the ...
1
vote
1answer
244 views

lubuntu not boots

I have one old pc that Windows XP even got performance problems in time that caused me to give one lite linux distro try to make this pc useful for web surfing mainly. I dont want dual boot, or need ...
1
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1answer
265 views

Can't boot into UBUNTU, after Yosemite install

I have posted on here as a last resort as I have searched for a solution and haven't been able to find one. I recently installed OS X Yosemite on my mac. Since then I have not been able to gain ...
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1answer
88 views

Problem upgrading from 12.04 to 14.04

I just bought a new laptop which came with Ubuntu 12.04 LTS. I had read a little about Ubuntu in school and was excited to try it out, but I soon found that my previous knowledge was highly wanting. ...
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1answer
648 views

How to PXE network boot Ubuntu Server 14.04 using NFS

So far I have a PXE server based on Ubuntu Server 14.04 setup and running, configured to serve a Linux Mint 17 live CD and Ubuntu Server 14.04. The aim is to use NFS to serve install media around the ...
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1answer
214 views

Live USB boot does not work "any more!

For the past couple of days I was experimenting with Ubuntu. I am running Ubuntu 14 (BIOS) on a Dell xps 15Z. I used a USB drive to install ubuntu on this system (HP formatting tool & YUMI) ...
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1answer
81 views

How to install graphics drivers off a live usb

Hi im having some trouble with Xubuntu. I have a toshiba satellite c50-b-14d (Hardware can be found here: http://www.toshiba.co.uk/laptops/satellite/c50-b/satellite-c50-b-14d/) After installing ...
1
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1answer
109 views

How to turn off the boot up beep of Ubuntu Live USB?

I have recently bought a Yoga 2 Pro i5 version and a Seagate Backup Plus Slim 1TB Mobile USB HDD. I made a 4GB partition and used the Universal USB Installer to write the ISO into the partition with ...