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
8k views

How do I get into recovery mode on ubuntu 14.04 if the option not showing

I just boot up my laptop then run the sudo apt-get update command, but there's an error says: [username] is not in the sudoers file. This incident will be reported. so I search the google ...
0
votes
1answer
41 views

Server 16.04 - Default Grub Boot Option Fails

I'm able to get the server to boot by going into the advanced options and choosing the first option. My question is how can I automate this? Requiring someone to be at the console during the boot ...
0
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0answers
121 views

Ubuntu 16.04 stuck in boot loop

I upgraded to 16.04 the other day, I don't think this is the source of the problem however. Checking out the changes I came across the programs N1 (email client) and CoreBird (twitter client) after ...
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0answers
29 views

PC not booting after using Windows 7 auto-repair

My home computer has been unusable since a week, and I would like to hear your opinion about my problems. It is a long story, so I will keep it simple, okay? :) I had a dual boot Windows 7 + Ubuntu ...
28
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4answers
87k views

My main username is not in the sudoers file

I was trying to install some software/edit files with my main username(not root) But I got this error [X] is not in the sudoers file. This incident will be reported. I tried to edit the /etc/sudoers ...
1
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2answers
60 views

Trouble in Boot Repair

I had a problem with my grub, it didn't recognize my OS, I have installed windows, ubuntu and kali. But then I tried to use Boot repair in a ubuntu live cd, and then I got to type. sudo chroot ...
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0answers
18 views
0
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0answers
570 views

Fixing "The ext4 file system creation in partition #1 of SCSI5 (0,0,0) (sda) failed

The other day, I was using my gaming laptop (ASUS ROG G750JM) that I got last year when it froze up and shut itself off. When I tried to reboot it has a system 32 error message, since I don't have a ...
4
votes
3answers
2k views

How can I make my Mac Mini start headless?

My Mac mini doesn't boot without a monitor connected to it. As I've read in various forums on the internet, Mac OS X lets the Mac Mini boot without an attached monitor if SSH is turned on. Obviously, ...
0
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2answers
168 views

How to find previous boot log after Ubuntu 16.04 restarts?

My question is, how can I find boot log from previous system boot attempt? Today when first powering on my PC, boot process stopped on Ubuntu logo, when I pressed Esc I have seen several lines ...
0
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1answer
20 views

UBUNTU14.04 could not be loaded due to GRUB Error [duplicate]

I installed UBUNTU14.04 in ACER Laptop after completing the installation the GRUB is not working, How can I install the GRUB separately?
0
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0answers
21 views

Overwrote and Installed 14.04 lts on old win xp

Over wrote and Installed 14.04 lts on old win xp 32 bit. Went right through but on restart does not get into ubuntu. All I have is a blank screen.
1
vote
1answer
64 views

ubuntu installation using preseed

I'm trying to do the unattended ubuntu installation using preseed.cfg. I am following the instruction as in ...
0
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0answers
22 views

ACPI PPC probe failed, “Welcome to emergency mode…” and fsck problems

Some time ago I installed lubuntu for my grandparents (I'm not using linux regularly so I'm a noob here) Something got broken and I'm struggling to find what it was and how to fix it. Problem ...
0
votes
0answers
212 views

Windows 10/Ubuntu 14.04 dual boot problem. '/boot/grub/x86_64-efi/ntfs.mod' not found

I'm new to Ubuntu, it would be great if you can help me set the windows and Ubuntu dual boot. I've tried many solutions, and I'm really lost. It seems like I touched something on recovery mode to ...
1
vote
1answer
183 views

Cant boot Ubuntu 15.10 ( not even the live version)

Hi everyone ( sorry for my bad english), i own an Hp Stream 13 (2x1.6GHZ, 2GB RAM, 32GB SSD) with windows 10, and yesterday i have successfully installed Ubuntu 15.10 ( using a 4gb usb stick with ...
0
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1answer
42 views

Unable to boot in ubuntu after install [Reboot and Select proper boot device]

I am using Samsung RV513 laptop. I recently installed Ubuntu 16.04 LTS and was working fine. Then I reinstalled Windows 7. After a few days, I reinstalled Ubuntu 16.04 LTS. Now whenever I start ...
0
votes
1answer
36 views

Trying to install ubuntu in primary partion .but converting logical to primary makes some problem

Actually mine is lenovo z580 and in my laptop already 2 os are installed i.e windows 7 ,windows 8 and i want to install unbuntu but it's not installing and two primary partions are there and trying to ...
1
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0answers
32 views

My computer won't boot after trying to mount a Flash drive

I'm a beginner, I'v just installed ubuntu on my computer The problem is that I plugged my flash drive but nothing happened and it didn't appear in the launcher, I read online and then found that I ...
0
votes
2answers
400 views

windows 10 dual boot with Ubuntu

I am unable to install ubuntu on my windows-10 HP-laptop, through usb disk.The computer is unable to detect the USB while in UEFI mode(secure boot,fast boot turned off),but is detecting when in legacy ...
0
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0answers
27 views

How to install Ubuntu Server to a iSCSI Drive using IBFT

We have to install Ubuntu Server 16.04 on iSCSI Drives and boot from them, because we have no local storage. We have configured the iSCSI capable Network Controllers to log in into the iSCSI Target ...
0
votes
1answer
48 views

UEFI Installation Ubuntu parallel to Windows 10

I follow all the common instructions. I installed Ubuntu through disabling the UEFI block and uneabling the USB boot. When I restart the pc, with the legacy options enabled, I have the following ...
1
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0answers
18 views

Correcting crashing/grub issues with partially failed install

I had issues completing grub installation on an mdadm system with 16.04, and managed to hack it to boot. However now the system intermittently crashes and continually tries and fails to install ...
0
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0answers
5 views

Screen not loading properly on new install

Recently installed Ubuntu 16.04 on desktop via bootable USB. After install and restart, screen won't stay loaded for more than a few seconds at a time. It keeps blinking out of everything, keeping the ...
0
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0answers
142 views

Ubuntu 16.04 - system boot waits saying “Raise network interfaces”

I have an Ubuntu 16.04 system with two interfaces - eth0 configured with DHCP and eth1 configured with static ip addresses. The /etc/network/interfaces file has the following config # The loopback ...
1
vote
1answer
135 views

Problem flashing Ubuntu Touch Firmware on Aquaris M10 (frieza)

I have the new bq Aquaris M10 tablet. The device was recognized by my Linux machine using adb devices. I tried making my filesystem writable using phablet-config writable-image. Well, this turned ...
0
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3answers
45 views

Boot issue with Win7 (ntfs) and Ubuntu 14.04 (ext4) on separate hard drives

I have two internal SSDs connected to my motherboard's SATA slots with OS's installed as written in the title. Whether I connect the Win7 or Ubuntu HD as the primary one, I do not see the other HD in ...
0
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1answer
20 views

Just installed Ubuntu for first time, booted fine at first but now won't boot

Booted fine after first restart, Windows boots fine, but I'm getting stuck on this screen now
5
votes
3answers
4k views

After upgrading from13.10 to 14.04 screen on a laptop doesn't work but

First my laptop CPU/GPU is Intel Celeron N2815 (Bay Trail) and I am in dual boot with windows 8. I have upgraded from ubuntu 13.10 to 14.04 today through update manager. And after upgrading and after ...
0
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0answers
34 views

Unable to get to POST/BIOS settings after installing 16.04 LTS 64-bit Desktop

Just installed Ubuntu 16.04 LTS 64-bit Desktop on a Gigabyte GA-Z87X-UD3H motherboard with a Samsung 850 Pro SSD (MZ-7KE512BW). On install, I selected UEFI DVD (had disabled Secure Boot/Fast Boot and ...
4
votes
4answers
3k views

Cannot boot system due to start job running for hold

I've installed ubuntu-desktop on Ubuntu 16.04 Gnome and I picked lightdm and now once I restart, I get this error message when I press CTRL + ALT + F2: A start job is running for Hold until boot ...
0
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0answers
100 views

Ubuntu 16.04 LTS will hang on boot. Booting from lived/USB fails. Boot repair does nothing

I have no clue what else to do. I upgraded from 12.04lts to 16.04 Lts (forced). I've tried everything I could find online to no avail. Whenever I boot there is a kernel panic, I've attached a picture ...
1
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1answer
48 views

Can't acess installed Ubuntu 14.04

I am new to linux. I installed Ubuntu 14.04 from a USB onto an Acer Aspire E15. I logged off and back into Windows 8.1. Now I can't figure out how to get back to Ubuntu. If I tell Windows to boot off ...
0
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0answers
26 views

ACPI PCC probe failed Ubuntu MATE 16.04

I ran into this error when I installed Ubuntu MATE 16.04: I can install the OS but it will not run for the first time. I played with the UEFI settings but it still doesn't work. I tried different ...
0
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0answers
20 views

ubuntu usb not showing as mac bootable :(

I have currently the old old mac desktop or whatever it is called. Using os 10.4.11 and cannot be upgraded anymore. I decided to install ubuntu and followed the guide here ...
0
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2answers
4k views

Missing Operating System - Windows7 - Boot from USB

I am using an HP TouchSmart 600 that came from factory with Windows 7 Home Premium 64bit. I have decided to get rid of it and installed Ubuntu 14.04 booting from usb and everything went perfect. Now i ...
0
votes
1answer
52 views

GRUB boot loader(Ubuntu) not working after updating

I have a system with ubuntu-14.04.2-desktop-amd64 installed. It has stopped booting up after updating. As I power on it, screen glows for 1 sec and it shuts down. I have tried to open GRUB boot loader ...
5
votes
6answers
83k views

Install Ubuntu in UEFI mode (unable to boot from USB)

I recently bought a Dell Inspiron 15R SE with Windows 8 (64 bit) pre-installed (UEFI supported). I want to install Ubuntu in dual boot with Windows 8. I tried to follow all these instruction and these ...
0
votes
1answer
59 views

Windows Skips Grub after cmd

I used the command BootRec.exe /fixmbr thinking I could get the Windows boot manager instead of Grub. Now it just skips Ubuntu.
4
votes
7answers
125k views

Uninstall Grub and use Windows bootloader

I have Windows 8 pre-installed and then installed Grub with Ubuntu. Ubuntu is not my thing so now I want to remove it along with grub. From what I have learned, with UEFI, Grub does not overwrite the ...
1
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0answers
37 views

Replace Android/Remix OS (Remix Mini PC) with Ubuntu via USB Boot

I just bought a new Remix Mini PC that I had planned on hacking and installing Ubuntu 16.xx (or the whatever the latest stable version is). It works just like any other Android except it has two USB ...
0
votes
0answers
20 views

After system updates ubuntu grub no longer boots on dual-boot system

Very new to Ubuntu and not very tech savvy so bare with me. I have been using Ubuntu on a dual-boot system for a couple of months - all fine. I haven't touched windows during this time. I did some ...
1
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0answers
34 views

how do i not get a black screen after grub 2.02 beta, ubuntu 16.04?

Last night I clean installed Ubuntu. Fixed the grub too with boot repair. Now when I switch on my laptop, I see the grub menu, I click on Ubuntu and after that all I get is a black screen. I've tried ...
0
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0answers
4 views

fix boot - is it possible whith encrypted disk?

Is it possible to fix boot of encrypted disk ? only the ubuntu partition is encryoted (sda3). These are the partitions: sda1 - efi sda2 - grub sda3 - ubuntu I use removable disk, and just moved it ...
0
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0answers
60 views

Slow boot ubuntu 16.04

Boot ubuntu 16.04 takes 20-25 seconds, maybe not that much but 2 times longer than 15.04. The problem is probably apparmor. Any suggestions what I can do with it? systemd-analyze blame: 11.858s ...
33
votes
6answers
156k views

I can't get grub menu to show up during boot

After trying (and failing) to install better ATI drivers in 11.10, I've somehow lost my grub menu at boot time. The screen does change to the familiar purple colour, but instead of a list of boot ...
0
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0answers
11 views

External DVD drive only recognized when playing movies

I want to install windows 8.1 and have install disk. With disk in external DVD drive(internal doesn't work) when I start computer(compaq presario) and go to multi boot screen, the external drive is ...
0
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0answers
50 views

Ubuntu is not booting after re-installation of Windows in dual boot system

My laptop was dual booted - Windows 7 (32 bit) along with Ubuntu 14.04 (32 bit) LTS - and I used it without any problems. Due to Windows performance issues I had to format windows primary C:\ ...
77
votes
3answers
57k views

Ubuntu 14.04 LTS live USB boot error (gfxboot.c32:not a valid COM32R image)

I downloaded Ubuntu 14.04 (64 bit) lts. I made a bootable usb stick. But I keep receiving this error message upon booting: SYSLINUX 4.04 EDD 20110518 Copyright (C) 1994-2011 H. Peter Anvin et al ...
0
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0answers
62 views

tty work correctly but GUI does not work in Ubuntu 14.04

the problem when i start my ubuntu i can login to tty ( Alt + Crtl + F2 ) but there is a problem with GUI. i tryed to install tvtime and when i restart the machine, ubuntu blocked in : *Starting CPU ...