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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3answers
7k views

Blank screen after ATI video card installation on Ubuntu 11.10 amd64

I am new to Linux, and don't have much knowledge on the OS and its technical terms. I brought a new ATI/AMD Radeon video card, and installed on the new Ubuntu 11.10 amd64 system (this is my first ...
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0answers
345 views

root file system mounts as read only after some time

My root (/) file system get remounted as read only after the system has been up for some time. This seems to vary from 3 hours to 48 hours. This system is running Ubuntu desktop 14.04. Its primary ...
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2answers
2k views

How to fix my MBR? While installing random Ubuntu my MBR is not getting overwritten anymore

I boot with liveUSB. But how do i fix now my MBR, so that i can re-install Ubuntu? (after installing ubuntu i get mostly this blinking cursor and black screen) root@ubuntu:~# fdisk -l Disk /dev/sda: ...
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1answer
5k views

Formatted Partition and now I have Grub Rescue Error

I done goofed. I decided that I really didn't need Ubuntu anymore (and that I wanted to give Mint a try) so instead of doing a smart thing I went ahead and wiped the partition that Linux was running ...
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1answer
84 views

Authentication Failure on the first Ubuntu boot from my USB?

I have a old HP compaq computer. My windows XP on that computer has corrupted, so I decided to install Ubuntu on it. I used the following video: https://www.youtube.com/watch?v=FfEbsf06IwU I download ...
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1answer
1k views

How to setup whole-disk encryption with dual boot on a MacBook Pro (generation 9,2 with 12.04)

I can install Ubuntu 12.04 on the MacBook when using the "noapic" kernel boot option, using the alternate amd64+mac image (from http://cdimage.ubuntu.com/releases/12.04/release/ ). But after ...
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2answers
444 views

How to create bootable ISO from an installed OS?

Say I have two systems A and B. I have installed Ubuntu 12.04 on system A and need same set of settings in system B, for which I am thinking to make a bootable iso from System A(creating as a backup)....
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1answer
6k views

Windows Boot Partition was deleted after re installing Ubuntu 13.10 and can not boot into Windows

A while ago I tried installing nVidia drivers for Ubuntu and ended up completely messing up my system so I left a broken Ubuntu on my SSD and used the Windows 8 installation on my normal hard drive ...
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5answers
9k views

Dual boot Install of Trusty Ubuntu on an HP with Windows 8 (64 bit) pre-installed (UEFI supported)

Yes, I have read, many times, "Installing Ubuntu on a Pre-Installed Windows 8 (64-bit) System (UEFI Supported)," and I have read the "UEFI" piece with the subtitle "Installing Ubuntu Quickly and ...
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1answer
8k views

How to revert back to GUI as the default interface from CLI in Ubuntu desktop?

I was able to set up a text-only UI (CLI) by editing the file /etc/default/grub in Ubuntu 12.04 as per the instructions in: How do I disable X (GUI) at boot so that the system boots in CLI mode? using ...
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1answer
1k views

Unable to run Ubuntu on a MSI laptop without disabling ACPI

I own a MSI GP62 6QE-260XFR, which is a laptop featuring an i5-6300HQ CPU and a GTX 950M graphics card, sold without OS. I've installed Windows 10 on a partition. It works just fine. My problem is ...
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1answer
2k views

Re-configure GRUB to directly boot to Ubuntu on dual-boot

I'm curently Dual-booting between Windows 7 and Ubuntu 13.10 both are 32-bit I'm installing it on a HDD with Ubuntu Bootloader installed on an external Pendrive (So if i want to boot Ubuntu i must ...
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2answers
155 views

Windows 10 update removed boot?

I have been running Ubuntu alongside windows 10, but a recent update removed the grub loader. I tried using Boot Repair as suggest by this post: grub rescue> during windows 10 update But it's ...
1
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1answer
671 views

Creating ubuntu 14.04 boot into external hard drive

I've tried to use rufus software to create Ubuntu 14.04 boot into external hard drive but rufus cannot recognize external hard drive as USB flash drives. Is there a proper way or software to create ...
1
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1answer
508 views

Ubuntu Desktop 14.10 on Lenovo G505s Purple Screen Problem

Alright, I have been on every forum and website I can think of to fix this but with no success. My system specs are as follows: Lenovo G505s- AMD A10-5750M, 16 GB DDR3 RAM, AMD Radeon 8570M 2 GB, ...
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1answer
1k views

Combine Multiple ISO Files To Burn A Single Bootable ISO Image [duplicate]

I have three ISO files : "ubuntu-10.10-desktop-i386.iso", "ubuntu-11.10-desktop-amd64.iso, "ubuntu-13.04-desktop-i386.iso " I want to combine those multiple ISO files and want to burn a single ISO ...
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1answer
11k views

Ubuntu server error: file '/grub/i386-pc/normal.mod' not found. grub rescue>

Hi i installed the latest Ubuntu server 14.04 and rebooted a few times perfectly and now when i last reboot it, i get the following error: error: file '/grub/i386-pc/normal.mod' not found. grub ...
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1answer
314 views

Dual boot Windows 10 Ubuntu14.04 problem

I'm sorry if this question has been asked before, but I couldn't find a solution that worked for me. I recently got a new laptop with Windows 8.1. I added an SSD and installed Windows 8.1 on that ...
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0answers
1k views

Can't boot after installing Ubuntu 15.04 message [3.877375] ACPI PCC probe failed.starting version 219.error opening USB device 'descriptors' file

Can't boot after installing Ubuntu 15.04 message: [3.877375] ACPI PCC probe failed. starting version 219. error opening USB device 'descriptors' file. I managed to boot in safe mode. My laptop is ...
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1answer
35 views

Mounting Error at bootup

How do I solve An error occurred while mounting /mnt/AA99-3674 keys:Press S to skip mounting or M for manual recovery" Note: I have had this message at boot up for a while and I have not had ...
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2answers
1k views

USB boot is skipping and reverting the HDD

I installed Ubuntu 11.10 to a 16gb USB drive (Kingston DataTraveller G3), I know it is fully functional as I have tested after disconnecting my HDD. My BIOS has all other devices in a higher ...
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2answers
510 views

Ubuntu EFI boot problem - Dell Inspiron 13-7359

After a clean install (pre-installed Win 10 removed) of Ubuntu 14.04.4 on Dell Inspiron 13-7359 I am not able to boot the OS in "Secure mode". What was done: First installed standalone Ubuntu 15....
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2answers
1k views

Try to install Ubuntu - MD5 Check Sums Different

So to start off, the reason I came to be in this predicament is because my desktop crashed. It was originally running windows 8.1, which I'm not too fond of. I didn't have the windows disk and because ...
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0answers
759 views

Has the bootoption “acpi=noirq” any disadvantages in permanent use? Help me with debugging acpi pls

I am using Ubuntu for a while now and I have an average knowledge of it, I thought so ;), but have a problem I cant solve alone. I did a lot of research, but now I cant find an other solution and I ...
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3answers
10k views

Grub menu doesn't appear

I'm using windows 7 and I installed Ubuntu 12.04 along side with it by creating a new 60 GB partition. It installed perfectly and then I restart the PC. I can't see the grub menu that let me to choose ...
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1answer
189 views

Can't load Windows 8 on dual boot with Ubuntu

I installed Ubuntu 14.04 as a dual boot with Windows 8 (from Win8). The installation went well without any issues. When I switch my laptop ON, it opens the GRUB menu with : Ubuntu Advanced ...
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2answers
2k views

Can`t boot into ubuntu 11.10 64bit

I've already installed ubuntu 11.10 64bit version on my PC, but it won`t boot into ubuntu. i only get black screen then system suddenly reboot and then i only got blank flickering screen i`ve already ...
1
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1answer
965 views

Ubuntu 14.04 liveusb boot screen graphic errors

I am trying to install Ubuntu 14.04 on my Lenovo Y500 laptop. It came preinstalled with Windows 8. I want to install it in a separate partition with a USB drive. I have tried both Unetbootin and ...
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2answers
446 views

Why won't bless make rEFInd boot by default? [closed]

I'm in OS X. In the refind-install script, there's a bless command that is running, but doesn't seem to work: elif [[ "$TargetDir" != "/EFI/BOOT" ]] ; then bless --setBoot --folder "$...
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2answers
4k views

What are the partitions to create if I want to dual boot ubuntu 12.10 with Windows 7?

I want to dual boot ubuntu 12.10 with Windows 7 on my laptop. I checked some online guides but each one does it differently. Some only create a / (root) partition and a swap partition while others ...
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1answer
100 views

ubuntu installation using preseed

I'm trying to do the unattended ubuntu installation using preseed.cfg. I am following the instruction as in http://searchitchannel.techtarget.com/feature/Performing-an-automated-Ubuntu-install-using-...
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1answer
859 views

Initramfs + Luks - only one password prompt

What I want to achieve: Being asked for a password, only once during boot time; The other (non-root) partitions to use the keyfile inside the /root/ directory. What I have achieved so far: (A) ...
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1answer
76 views

Ubuntu 14.04 installation attempt destroys Windows 10 [closed]

A few hours ago I was trying to install Ubuntu 14.04 along side Windows on a UEFI Laptop by following the steps given here without any success. I'm pretty sure I would have succeeded had I followed ...
1
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1answer
268 views

Lubuntu 14.04 - No grub screen. Need to Ctrl Alt Del to reach grub

Turning the machine on or rebooting leads to a black screen right after the brand logo (Acer) splash screen. Nothing happens until I hit Ctrl+Alt+Del, which kind of reboots but shows the grub menu. At ...
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1answer
3k views

Drops to BusyBox, but can continue upon exiting

So I just installed 11.10 on my Dell Precision T5500 from the live cd. The live cd worked fine, but when I attempt to boot from hard drive I end up at the BusyBox prompt. However, if I simply type "...
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1answer
542 views

Don't wait for user input on errors while booting

I'm running 11.04 server, headless, and at a certain point it didn't boot anymore: it just stopped. It seems like I made a mistake with some of the disks, the fstab or the raid config, anycase one of ...
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0answers
931 views

Install to Intel NUC with onBoard 4GB eMMC

I'm just trying to install Ubuntu 14.10 onto an Intel NUC which has onboard 4GB eMMC storage and no other drives attached (Intel NUC Kit DE3815TYKHE). I've managed to get a working model for a CentOS ...
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1answer
2k views

MDADM RAID1 Home Server System disk error: incrementally starting raid arrays mdadm: Create user root not found

I'm not sure what else to check. Everything below looks sane to me but the system hangs on boot. This is a home server with four disks crammed into a Dell OP620. Each pair of disks are assembled as ...
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1answer
23 views

Where are the syslinux x86-64 files located on a booted up live medium?

I found a problem during creation of a live USB stick with a ESP to boot from. I have to populate the ESP manual. Therefor I need to copy the files from /usr/lib/syslinux/efi64/ to the ESP. Althrough ...
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1answer
186 views

How do I boot Ubuntu from the network?

Is there an easy way to boot ubuntu from network a.k.a. PXE? I would like to setup a PXE server, connect an old laptop (without cdrom nor working usb-boot-option) to the network and boot Ubuntu ...
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0answers
1k views

Windows 10 upgrade kills grub

At first, I had Ubuntu 14.04 LTS alongside with Windows 7 Professional. I was on windows 7 and I upgraded to windows 10. During the installation, It had to restart. What happened when I restarted was ...
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1answer
2k views

Is there easy and safe way to resize /boot

My /boot is full. Is there an easy and safe way to resize it? I saw a discussion which said that /boot partition is not required. A /boot directory will be fine. However, I don't think I can have /...
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1answer
1k views

Install Windows 10 along side Ubuntu 14.04

I'm having a lot of issues dual booting windows 10 and Ubuntu 14.04. I'd like to not do anything too crazy if possible. I need to: Install Windows 10, when I already have Ubuntu 14.04 installed. My ...
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1answer
2k views

How to boot USB from GNU GRUB 2.02~beta2-9ubuntu1?

I am using HP 1000-notebook pc corei-3 series. I had installed Ubuntu 14.04.1-desktop-amd64, accidentally using the lvm option. After finding my 500 Gb hard drive stuck in lvm I started to find ...
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1answer
8k views

Windows 8.1 is Completely Blocking Ubuntu [duplicate]

A few days ago, I upgraded my Windows 8 Lenovo U410 ideapad to Windows 8.1, and it proved to be a terrible mistake. It seems like the only visible change that it has made is adding the start button. ...
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4answers
5k views

BIOS not detecting boot files for 14.04LTS single OS installation

I am consistently getting the ERROR: No boot disk has been detected or the disk has failed. message when trying to boot a single OS Ubuntu 14.04LTS setup. I have a brand new Packard Bell L4875-i5 ...
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2answers
8k views

Grub don't find windows 7 loader. Can't boot to windows after installing linux Help

Last week i installed Ubuntu 13.10 on my windows 7 System and now I am trying to boot into windows and i can't do it. I installed GRUB-2 and i tried to boot to Windows from there but i can't see the ...
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2answers
2k views

Ubuntu 12.04 questionable RAM usage, mouse lags, windows fade slowly and programs hang…after a few hours things return to normal

I am running 12.04 on a Core 2 Duo T8100 at 2.10ghz with Intel GM965/GL960 integrated mobile graphics with shared memory. I have 3gigs of ram but it normally stays below 1 gig. Super Key hangs and ...
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2answers
3k views

init not found try passing init=bootargs

I tried to install ubuntu in my sony CS17G notebook. After selecting the option "Install ubuntu" from the boot menu, I am always getting the error.. init not found. try passing init=bootargs. (...
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2answers
759 views

Can't boot into Ubuntu, keeps returning to GRUB

I installed Ubuntu yesterday but it does not work when I try to access it. Instead it sends me to GRUB 1.99 . What can I do to make it work normally? What are the commands that I have to give for it ...