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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2
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1answer
61 views

Ubuntu not seeing Windows 7 in bootloader

While I was installing Ubuntu I unplugged my Windows 7 HDD so I wouldn't accidentally partition it. I installed Ubuntu, shut off my computer, plugged back the HDD, rebooted (and using the BIOS boot ...
2
votes
1answer
246 views

Ubuntu 12.04 LTS hangs (all black) before showing login screen

Attracted by the open-source philosophy and the idea of a free system from the people for the people I decided to throw away my Window 7 and replace it with Ubuntu 12.04 (I even bought it, just to ...
2
votes
1answer
23 views

How do I save a modified buffer for video resolution uncommented?

I've been getting a "Signal out of range" message when trying to boot up. Press down arrow, enter to get to recovery menu and go to system root prompt. From there I run sudo nano /etc/default/grub ...
2
votes
1answer
121 views

Windows 7 hangs up after Ubuntu dual-boot installation

I recently installed Ubuntu 13.10 using the Linux Live USB creator to create a live USB and then booting/installing from that drive. Everything seemed to go smoothly. I first tested booting Ubuntu ...
2
votes
1answer
94 views

Need help booting windows after installing ubuntu dual boot

I recently installed Ubuntu to dual boot with Windows 7. The first time I booted up, I was given the option to boot to Ubuntu or Windows. If I selected Ubuntu, I would go to a GRUB menu for Ubuntu. ...
2
votes
1answer
290 views

How do I format my 24gb SSD for ubuntu?

I have an Asus Ultrabook S400CA-DB51T and I want to replace windows 8 with ubuntu. No dual boots or anything like that, just 100% ubuntu. I'm trying to make the conversion with the 13.10 image, but ...
2
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1answer
161 views

Booting Ubuntu 13.10 from external hard disk on both uefi and bios?

External Hard Disk Details, GPT, 150GB partition of Ubuntu 13.10. Ubuntu Newbie here please be kind. Firstly, What I would like to do is that ubuntu is able to boot in uefi computers as well as old ...
2
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1answer
724 views

Boot fails(sometimes) after “Switched to clocksource tsc”

I am running on Ubuntu 13.10. I had worked on Ubuntu 12.04/12.10/13.04 and Linux Mint 13/14/15 both 32 and 64 bit versions. I have faced with the same boot problem in all of these distros. After ...
2
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1answer
183 views

Ubuntu boot failed

I have Kubuntu 13.04 installed and it was working fine until today, it's failed to boot with mounting failed message. I've run the Boot Repair but didn't fix my problem. If anyone can help, that ...
2
votes
1answer
248 views

Dual boot Win 8.1 OK, Ubuntu 13.10 stops launch at GRUB4DOS

I have scoured the net and this site and trying everything to get this to work. I have, currently, Windows 8.1 installed and I am trying to install Ubuntu 13.10 so I can dual boot them. My hardware ...
2
votes
1answer
164 views

Remove startup password when default login is command line

When I boot up my computer, it goes straight to the command line. I modified /etc/default/grub file from GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to quiet splash text. Can someone please explain ...
2
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1answer
530 views

Lifecam Cinema prevents boot into Ubuntu 13.10

When I have the lifecam cinema webcam plugged in, then there are problems booting into the operating system (ubuntu 13.1). Since I'm new to Ubuntu, I can only describe what happens. It boots as far ...
2
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1answer
173 views

Grub_rescue error : unknown filesystem , error loading operating system

i had Windows 7 and Ubuntu 12.04 installed in my system. I removed ubuntu and installed it again. When i restarted the system , its showing Error : Unknown filesystem grub rescue > i used ...
2
votes
1answer
2k views

Black screen when running xubuntu 13.10 after upgrade

I have a xubuntu v12 that I updated to v13.10. Sice the upgrade I get the black screen at a startup. I can get to the console and login. How can I run it in graphic mode? I run it on Oracle ...
2
votes
1answer
337 views

Installing linux on OCZ RevoDrive3 x2

First of all, here is the configuration of my computer: Motherboard: Asus H87Plus RAM: Corsair Vengeance 32GB Processor: Intel i7 4770 Drive: OCZ RevoDrive 3 x2 (240 GB) (OCZ Revodrive3 is a PCIe ...
2
votes
1answer
1k views

Errors with USB device during boot?

Explanation I just built a new computer. Here are the specs: Motherboard: Gigabyte 990FXA-UD3 CPU: AMD FX 8350 SSD: SAMSUNG 840 Pro Series MZ-7PD256BW RAM: G.SKILL F3-1600C9Q-32GXM Initially I ...
2
votes
1answer
853 views

Add “Boot from frist hard drive” to grub installed on USB

I have done a custom Ubuntu 13.04 installation on a 8GB USB pendrive using a minimal CD install [system root on /sda1 3.5GB ext4, shared partition /sda2 NTFS 4GB mounted as /shared, no swap ...
2
votes
1answer
611 views

How to bring up wireless after it sometimes goes down on reboot (wlan0 up gives error)?

I run (K)Ubuntu 12.10/12.04 in a triple boot with Windows 7 and access the Intenet wirelessly. This works perfectly most of the time. Sometimes after a normal reboot, the wireless connection ...
2
votes
1answer
671 views

Can't boot into Ubuntu Touch on Nexus 7 (grouper)

I have been trying to install Ubuntu touch on nexus 7 (grouper,WiFi) for couple days now, and no luck. I am using manual install method (from this tutorial) because other automatic tools don't work. ...
2
votes
1answer
162 views

Installation on an UEFI system

I've been using Ubuntu for years. Now I bought a new notebook and want to install Ubuntu again but I can't. My notebook is a Lenovo S300 ieadpad with preinstalled Windows 8. I want Ubuntu to be my ...
2
votes
1answer
2k views

Nexus 4 Fails to Boot After Ubuntu Touch Flash

I was running CM 10.2 on my Nexus 4 until I decided to give Ubuntu Touch a try. These are the steps I took. Because I as already running a custom OS, I already has a custom recovery installed (CWM), ...
2
votes
1answer
948 views

Ubuntu 12.04 lts won't boot after system crash + corrupt file system

Late the other night, Ubuntu crashed suddenly (wasn't doing anything unusual - just using firefox and audacity). I didn't catch the error message, and didn't think much of it - just went and rebooted ...
2
votes
1answer
397 views

if-up.d script not working?

I'm trying to make NAT routing persistent on my Ubuntu 12.04 EC2 instance (for OpenVPN; currently I need to run it every time after boot): ubuntu@vpn:~$ cat /etc/network/if-up.d/vpn-routing iptables ...
2
votes
1answer
384 views

Live USB stopped working

I had 13.04 32bit running great on a Sandisk Extreme USB 3.0 64gb stick. For the most part I use it on a Toshiba Portege laptop but sometimes on various desktops as well. I set the usb drive up with ...
2
votes
1answer
1k views

How to save boot log from failed boot?

I know I can run dmesg to look at boot errors. However, my system is failing to boot right now. It hangs indefinitely while trying to initialize hard drives. However, I can boot up into safe mode. ...
2
votes
1answer
3k views

Kernel panic - not syncing: no init found. Try passing init=option to kernel

I formatted all the partitions in my computer to a single ext4 partition and did a fresh installation of Ubuntu 13.04. I'm getting: Failed to execute /init Kernel panic - not syncing: no init found. ...
2
votes
1answer
2k views

13.04 Won't boot after update

I have a laptop with a dual-boot configuration, Windows 7 in one partition, Ubuntu 13.04 on the other. It was working fine for months, but now, after one of Ubuntu's recommended updates, it won't work ...
2
votes
1answer
3k 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
votes
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
votes
1answer
52 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
1k 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
votes
1answer
620 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
votes
1answer
275 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
votes
1answer
303 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
votes
1answer
219 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
votes
1answer
137 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
votes
1answer
318 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
votes
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
votes
1answer
298 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
173 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
votes
1answer
766 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
486 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
votes
1answer
239 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
votes
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
votes
1answer
56 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
votes
1answer
484 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
votes
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
votes
1answer
723 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
votes
1answer
247 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 ...