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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ubuntu download on laptop not working

I have just loaded up ubuntu on a new toshiba scullcandy laptop which came with windows 8 as a factor setting - i reformatted the disc and requested that ubuntu replace the existing. when i try to ...
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43 views

“An error occurred while mounting 0” after rebuilding computer

Ubuntu Server 14.04, installed recently with no swap partition. I was running this system just fine and was ready for "final installation" - that is, putting the components in the case, removing the ...
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99 views

Discrete graphics card only detect by BBSWITCH/BBSWITCH-DKMS every OTHER boot

I am running into a very strange issue with bbswitch where the module works / fails every alternating boot. IE: If bbswitch properly detects the discrete card this boot, it will fail next boot. I ...
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35 views

Ubuntu disk msdos partition fix reverse order

the disk info Hey.. I just made a mistake trying to convert a primary into a logical partition. and then it become a disaster to me.. my original disk partition: /dev/sda1 Windows Disk C, ntfs /...
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25 views

Acer switch 2-1: can't get any boot media to show up in boot menu

I have installed many many linux distros before, this is the first time I've had an issue. Running 32-bit windows 10, x64 processor, uefi booting, secure boot off, usb at top of boot order. I have ...
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19 views

Running from USB, when reaching loading screen it stops loading!

I have created LiveUSB with Ubuntu to try it before installing it. When I chose option to boot from USB it does that just fine but later when I pick first option: Try Ubuntu before installing, it ...
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20 views

Grub is unco-operative

I have an Acer Aspire M5, which was dual-booting Windows 10 and Lubuntu 15.10. Amateurishly, I deleted the Lubuntu partition from Windows' partition manager and shut down my machine. Now I have a ...
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39 views

Ubuntu installed but will not boot - problem with grub

(warning: I am a noob) Hello, I have recently installed Ubuntu onto my Lenovo b570 laptop and when I boot up the computer, it tries to load ubuntu but gives me a black screen and moves on the the ...
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20 views

Automating Refurbishing Tasks, MAAS

So I am currently working on a project and just came across MAAS as a potential product that I could use. The problem I am trying to solve is as follows: We have tonnes of old laptops that we ...
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125 views

Black Screen After Ubuntu Logo … (14.04)

(Blank Screen after Ubuntu Logo) At first i have an Asus Laptop GL752WV i installed Ubuntu 14.03, it's Not Dual-Boot. Running Graphic Card : Nvidia Geforce GTX 960M / CORE i7 / RAM 8GB Everything ...
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76 views

What Causes: “Error: environment block too small. Press any key to continue” Messages?

It seems like a never-ending fight at the moment, I'm able to fix it every time it happens, but having migrated to an 18 month old SSD pulled from a different (fully working) machine, I now seem to ...
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98 views

Unknown file system. Entering rescue mode. After Complete Format with Gparted

I installed Ubuntu 2 days ago. During installation I mistakenly selected to format my Disk.Later I realized that there was some very important data on the disk. So I thought it's better to go back to ...
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31 views

Ubuntu is frozen at login screen. Total noob, need detailed help

I am running Windows 8 and Ubuntu on the same laptop. After using Windows for a while and using up a lot more space than I previously did Ubuntu wouldn't start. I then removed some of these files, ...
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47 views

creating usb boot using winusb error

I'm using winusb to create a eufi win10 usb boot stick, but without luck. I'm getting the following error message: Installation failed ! Exit code: 256 Log: Formating device... Mounting... mount: /...
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41 views

Vizio CT14 + Ubuntu 14.04.3 LTS = No root & No boot

Have been running 14.04.3 LTS from usb stick in 'try first' mode. That has been working, so tried installing alongside Win7. Didn't work. Removed Win 7 from drive. Gave whole SSD drive to Ubuntu. ...
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108 views

how to set disk IO scheduler automatically

Grub line doesn't work: GRUB_CMDLINE_LINUX_DEFAULT="elevator=bfq" "udev rules" doesn't work while a boot time. But works when I mount a disk in a loaded system. # set deadline (noop) scheduler ...
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261 views

Ubuntu 12.04 not showing in boot menu after installing alongside with Ubuntu 14.04 and Windows 8.1

I know the question looks similar but I did not find any answer to my problem, hence posting it here. Thanks in advance for any help. I had Ubuntu 14.04 installed alongside Windows 8.1 and both ...
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14 views

Vanishing desktop and no Bootable device

This is a strange problem, so I am going to try to explain it as best as I can. When using Ubuntu unity the left icon bar will arbitrarily vanish. In addition the network manager and time and ...
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36 views

Grub2 boot menus out of sync on dual monitors

System Summary: I have dual monitors on my machine, and my operating systems are Ubuntu Desktop 14.04 LTS and Windows 10 on separate hard disks. I installed each operating system with only that hard ...
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283 views

Grub Rescue unable to “insmod normal”

I am stuck in the Grub rescue: I know my Linux is saved in (hd0,gpt2). grub rescue> ls (hd0,gpt2)/boot/ ./ ../ vmlinuz-3.13.0-70-generic grub/ initrd.3.13.0-70-genric grub rescue> ls (hd0,...
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111 views

Unable to find a medium containing a live file system

I am using DELL Inspiron 15 3000 series, On this system ubunto 14.04 was pre-installed. Today I just make it sleep mode, When I start system I is giving me message. Please see the following images. On ...
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163 views

How do I specify an LVM partition in GRUB?

I am wondering how I can specify an LVM partition in GRUB2 on my Lubuntu machine. I am attempting to use my USB hard disk I use to boot and run my laptop as a dual purpose live install medium for any ...
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26 views

Black screen on boot after GRUB, ran fine eariler today

I'm getting a black screen after the GRUB, I installed ubuntu last night and it worked fine. I tried removing quiet and splash and replacing them with nomodeset. The computer is from ~2005 and has a ...
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91 views

Ubuntu 14.04 freezes after booting from SSD

I recently installed a Crucial 500GB SSD, to replace the ageing HDD in my laptop, and improve performance (a Dell Vostro, about 5 years old). After cloning the existing drive using ddrescue, I ...
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43 views

PXE Boot: No boot file name recieved

So, I'm pretty much a toddler when it comes to Ubuntu and this is my first post on this site. I've been tasked , by my boss, to setup a FOG server. I got that all set up and can login and everything, ...
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192 views

Ubuntu clean install after fail upgrade from 14.04 to 15.10

I tried to upgrade... no success. pic: http://imgur.com/cWrRfaL.jpg I have backup off all my things, now i dont care i just wanna reinstall new version 15.10. I made a USB with (Universal-USB-...
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106 views

HELP!! Unable to boot into Ubuntu 15.10 after update

Before this happens, I uninstall ibus and apt-get update, after that update-center pop up notifying that system is up to date and I have to restart my system. I did it and now I'm unable to boot into ...
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25 views

VERY NOOB QUESTION in regards of dual boot installation

So before I booted to the live usb, I made a 12gb partition via disk manager (windows 10) for ubuntu 14.04.3 to install. I am now in the process of installing ubuntu where it shows a few options. The ...
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27 views

Missing Archive Repositories Lead to Lock-Out

I am running a Dell GX520 computer. I am only operating Ubuntu. I haven't been able to install updates for a couple weeks. While trying to upgrade from 14.04 to 15.1, my efforts to fix broken packages ...
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17 views

When unplugged, Ubuntu restarts in a loop

When I boot my laptop with my power cable unplugged, it will boot up to the Ubuntu loading screen with the loading icon moving, and suddenly the screen freezes and it restarts. This process goes on in ...
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116 views

Can't boot windows 7 after installing ubuntu 15.10

I know this has been asked a lot, but can't find a stable solution or well anything I can do to make it work. (I've been a Windows user for a long time so I'm not really familiar with Linux commands, ...
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16 views

Lost drive containing only grub and /boot

I am running Ubuntu 15.04 kernel 3.19.0-33-generic (installed originally as server then XFCE installed) with grub and /boot on a separate single drive that has failed. /root and everything else is on ...
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47 views

windows loader not showing

I had windows 7 64bit installed in c: and I installed ubuntu 15.04 on e:, now after installing the ubuntu the windows isn't showing in the loader menu in startup. please find the grub report following....
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61 views

Unable to boot into ubuntu/mint on 500gb Seagate SATA drive

I assure you I have searched and this is not a duplicate; after searching I am now confused that if I should post it to superuser instead. Please suggest. I am unable to boot into my computer, ...
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120 views

Wily werewolf grub 2 boot error

I've had some ups and downs with Wily Werewold, but the biggest issues I've had would be boot errors and lots of them. I boot up and after selecting Ubuntu, it simply goes into a black command prompt ...
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19 views

PowerPC VHD image download?

I got an iBook G4 off of eBay for $30 the other day but when I got it, the hard drive was dead. I've looked it up, and the hard drives cost more than the computer itself! So I went to install Ubuntu ...
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50 views

Ubuntu booting from USB errors

I am using a lot of software from my bootable USB with no problems until lately. My problems began when my computer turned off by accident twice ( I know this sounds stupid but sometimes I am unlucky ...
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114 views

Crashes every 30 minutes on 15:10

Environment: Linux david-1510 4.2.0-19-generic #23-Ubuntu SMP Wed Nov 11 11:39:30 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux I have suffered with freezes since installing 15.10 in October every 30 ...
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145 views

Cannot get GRUB menu at boot

It might be a bit lame question and I hope i will not be a duplicate or off-topic since I searched on askubuntu, but I could not solve my problem. It does not seem to be a VMWare specific thing then. ...
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63 views

None system is booting after installing ubuntu 15.10 alongside windows 8

I'm working on Lenovo T430u. It's preinstalled with Windows 8. Windows was normally booting. After installing ubuntu 15.10 now none system is booting. When I have "UEFI only" in boot options it is not ...
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77 views

Keyboard/Mouse unresponsive after waking from suspend. Followed by full system crash after restarting. Ubuntu 14.04

I have recently built my first computer and am dual booting ubuntu 14.04 and windows 10 (each on their own ssd). The hardware specs are linked below. http://pcpartpicker.com/user/xarmaster/saved/...
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87 views

Strange problem with backlight (it worked and now no more?)

EDIT : It's started working again?! i went out on friday night and i left pc ON. This morning it was working. looking in syslog i saw this : Dec 10 22:41:00 LittleHP kernel: [ 262.553256] video ...
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73 views

BAR 0: error updating - when booting up

this is a output from my dmesg http://jpst.it/DSJC There is buch on things going on I was reading it my two things are highlited in red: [ 0.323969] pci 0000:05:01.0: BAR 0: error updating (...
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64 views

Cannot access or boot encrypted drive (gave up waiting for root device…)

I cannot access or boot from my C drive. I'm running Zorin 9 and the drive is a Samsung SSD. The disk was encrypted on install, and that has not given me any problems before. When I start the system ...
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41 views

sda sometimes changes to sde after reboot

I have a problem on ubuntu 15.10 server. Sometimes, the boot device is /dev/sda and after reboot it changes to /dev/sde, which messes up my raid. /etc/fstab: UUID=34510a0f-c98f-407b-a11c-...
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81 views

Ubuntu Check for defects - Errors found in 1 file

I've followed every step from the ubuntu website about how to make a bootable usb drive and i'm using mac os x el capitan. After i booted to my usb drive and i saw the check for defects option so i ...
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92 views

GRUB error, can't install Win 10

I have a huge problem on my Ubuntu (15.10) version. My computer now has only Ubuntu and I tried to install Windows 10 via USB (as a live CD) unsuccessfully. Firstly I saw in the BIOS menu the ...
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32 views

Ubuntu 14.04 on Lenovo E531

I have the following problem. I have a Lenovo E531 with an I7-3632QM, NVIDIA GT740M, 1TB HD and 8GB RAM. It come with Windows 7. After I free some space with the winmgmt.exe utility, I do a clean ...
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16 views

Macbook: Lost boot options

I've followed the instructions at https://help.ubuntu.com/community/MactelSupportTeam/AppleIntelInstallation to do a single-boot install of ubuntu in my macbook (late 2008 aluminium), and now I can't ...
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56 views

14.04.3 Live USB not booting only on desktop

Acer Aspire XC-610 desktop computer Sandisk Cruiser USB 3.0 16GB Ubuntu 14.04.3 LTS Dell Inspiron 15 Laptop I downloaded ubuntu-14.04.3-desktop-i386.iso and created a live USB using Startup Disk. ...