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 14.04/Windows 8.1 dual-booted system gets stuck at loading initial ramdisk when I try to boot ubuntu

I'll start off by saying that I am not a very advanced Ubuntu user. This whole thing started when I was running Ubuntu and got a notification of a unfinished update, so I started the update. However, ...
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2 views

Xubuntu 16.04: fstab won't mount “/root” entry

A week ago, I installed Xubuntu 16.04 and supposed to mount a partition(/dev/sda3) for root's home (/root). Here is my fstab looks like: # / was on /dev/sda5 during installation ...
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7 views

Ubuntu Can`t Boot After Failing To Install

This is my situation: I had in my hard drive two operating systems: Windows 8.1 and Ubuntu 12.04 LTS Precise Pangolin. Using a bootable USB stick, I created another partition to install in it the ...
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3 views

Sony VAIO laptop SVF11N11CLB not start Ubuntu 16.04 without acpi = off

After installing Ubuntu 16.04 on my laptop, I could do without the option to start acpi = off. This causes loss control battery, wifi, screen brightness and sometimes left running only one processor ...
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12 views

After seeing login screen, screen goes black and freezes for 15 minutes before rebooting

When I boot into Ubuntu I have a black screen for a few moments. Then the login screen appears, with my wallpaper and the top bar and everything, but after a few seconds the screen goes black and ...
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1answer
14 views

Why does my laptop boot only on battery, but not on charge?

When I boot my laptop while on battery, it boots normally: Toshiba start screen, Intel patch screen, then Ubuntu screen with theatre-marquee dots. But if I try to boot while it is on charge, the ...
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7 views

Lubuntu 15.10 does not start after installed in a modern Mac Mini

Tried Lubuntu on a Mac Mini (4x i5 @ 2.5GHz / 4Gb) and works fine (after adding the nomodeset to booting parameters). Have installed it on the HD and after rebooting I just get the white screen for ...
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19 views

Ubuntu 16.04 boot taking more then 5 mins

I'm using a hp laptop with 4 gb ram and 2.2 GHz amd processor and Ununtu 16.04 installed in it. Before I was using windows 7. I formatted the whole harddisk and installed Ubuntu. It boots some times ...
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16 views

How Do I Change the Boot Loader to Load Ubuntu on a Different Hard Drive in Windows 10?

I've just done a successful installation of Ubuntu onto a brand new hard drive, but now I don't know how to load the Ubuntu OS. It does not show up when I boot my computer in the "Choose an Operating ...
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12 views

GPT, grub and mdadm. sda drive replaced, raid rebuilt in recovery mode, but now server won't boot

This is how partition table loooks like: (parted) print Model: ATA TOSHIBA DT01ACA2 (scsi) Disk /dev/sda: 2000GB Sector size ...
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9 views

Long Delay after Bootin - upower.service requires 26s

I am trying to determine the root cause of a delay after booting. Currently using Ubuntu 16.10 LTS, but the same issue was occurring on previous versions back to 14. The system hangs at the login ...
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2answers
47 views

How to reinstall Windows after installing Ubuntu [on hold]

My laptop (Lenovo IdeaPad 100) came preinstalled with Windows 10. I think I have overwritten the windows files with ubuntu. Now I want to install windows 10 back ,deleting Ubuntu. I have Windows 10 ...
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1answer
38 views

Can't start Ubuntu from USB flash drive

I'm trying to test ubuntu on this old laptop I happen to have but I can't get past the boot menu. I choose the option to test ubuntu and when I press enter it freezes. There's no error messages or ...
0
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1answer
40 views

Installing Ubuntu 16.04

I've been trying to install ubuntu 16.04 for a couple of days I Keep getting the message no boot drive defined. I'm trying to install on an 8GB partition of a 1TB drive. I have four 1TB drives in ...
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1answer
23 views

Latest Version of Ubuntu Desktop burned to DVD won't start through Windows 10?

I would like to begin programming so I just got a brand new 1TB hard drive to install Ubuntu onto and downloaded the Ubuntu 16.04 LTS disc image which I then burned onto a DVD-R disc. I read on the ...
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1answer
24 views

Failing GRUB installation and Boot-repair

Here is my earlier issue: Booting issue & Boot-Repair not working Despite of possible hard drive problems I have tried to install Linux Mint to my laptop via USB (Linux Mint because I'm not aware ...
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0answers
14 views

Ubuntu doesn't prompt for disk password when booting

I have an Arch partition installed on a LVM volume. It corresponding physical volume is in an encrypted partition (I used cryptsetup to do this). I installed Ubuntu Studio 15.10 in another logical ...
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0answers
6 views

Ubuntu Live USB showing completely black screen

Contrary to most questions, my 27" iMac is too big for Ubuntu to display on. Pre-startup messages show, but no text, no splash, and no desktop ever appears, just a black screen. I do hear the bongoes, ...
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0answers
12 views

Ubuntu installer doesn't warn about low boot partition size

I've installed Ubuntu on a system where Windows 10 is already installed. Since I wanted an encrypted partition, I used the "something else" option and set up an encrypted partition and a boot ...
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0answers
14 views

Systemd Kernel Variables Error

At boot, I receive an error message [failed] failed to start apply Kernel variables. I have not used a Systemd distro until now so I'm not sure what I should be looking for. I ran this in terminal ...
1
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1answer
20 views

14.04 Gave up waiting for root device

I installed Ubuntu 14.04 on my Asus PC. (If it matters, the OS is installed on my SSD.) The attach image shows the error message when booting. Picture of error message I have found a temporary ...
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27 views

Dual-Boot Problem with Pre-Installed Windows 8.1 & Ubuntu 14.04

I do understand similar questions already exist. Yet mine seems to be a problem that despite trying hard to address, I haven't been able to solve. Despite having a working Ubuntu LTs 14.04 ...
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0answers
11 views

Cannot configure common clock

I am trying to install Ubuntu from a USB that I created using the ISO from yourselves. It get to the loading screen that has 2 symbols, I can only describe as, a keyboard and a stick figure. Then ...
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0answers
20 views

Bootable pen drive 16.04 is not able to recognize by my laptop(UEFI)

I am using ubuntu 14.04 in my desktop and now i want to upgrade it to 16.04 so i downloaded ubuntu 16.04 image file and i make my pen drive to bootable by using Startup Disk Creator available in ...
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0answers
17 views

Boot screen does not show on external monitor ubuntu 15.04

I have ubuntu 15.04 and the older versions worked fine with showing the boot screen on my external monitor but now i have 15.04 it dosent show up on it any more how to fix? ALSO: same result on 15.10 ...
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25 views

boot to black screen after upgrade

I upgarted from 14.04 to 16.04. after boot the terminal tty1 opens, and a message is repeated: brcmsmac bcma0:1: brcmsmac: brcms_ops_bss_info_changed: disassociated brcmsmac bcma0:1: ...
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24 views

Ubuntu 16.04 - New install shows strange failed message

Just Installed Ubuntu 16.04 alongside Win 10, install completed ok, went to re boot and got this message so thought I would type it up here incase it is relevant to any troubles I'm about to have with ...
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2answers
41 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 ...
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0answers
88 views

Ubuntu 16.04 is booting and running pretty slow/

3-4 years ago. I had Ubuntu on my laptop, i forget what LTS but it was maybe 12-14. I recently installed 14.04 on my custom desktop, forget the specs sorry. But it booted up slow, it hung at black ...
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3answers
40 views

Noob needs help with fresh install of Ubuntu

To be as brief as possible: We have an old Dell Inspiron 8600 laptop that had an OS/hard drive crash a year or so ago. Destroyed the hard drive and was going to send the laptop off for recycling but ...
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0answers
20 views

Add grub menu for OS X

I installed Ubuntu 16.04 Desktop on my MacBook Pro, and cannot boot OS X now. My disk partition table is: Device Start End Sectors Size Type /dev/sda1 40 409639 409600 ...
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3answers
20 views

Kubuntu Boot Up Speed

It's been suggested I move to Kubuntu, GCC, and open GL for these small but critical applications. But Kubuntu 11.0 takes over 10 minutes to boot with a CF card for a drive and an AMD GX466 CPU. The ...
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1answer
33 views

Black screen appears when trying to enter ubuntu - dual boot (windows10 - ubuntu 14.04)

I am having problem with Ubuntu again. Everything was perfect (for 1 month), after ı installed mysql 5.7.12, gtk 3.0, the problem started. when ı try to enter ubuntu A blank screen shows up. However, ...
0
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1answer
20 views

Crash when trying to install Ubuntu

I'm new to Linux and trying to set up a dual boot Ubuntu / Windows 10 system on a new Dell xps x8900. Each time I get midway through the boot-up process before I can even install, the system crashes ...
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1answer
15 views

USB Security by Encrypt.com - where do i purchase this ap? (The instructions say it has never been hacked?)

I have a Lexar usb stick with Encrypt technology. Lexar said I had to purchase for like $12.99 software to use the USB stick, as it is so good apparently that it has never been hacked according to ...
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107 views

Ubuntu 16.04 does not start after Gnome shell installation

I'm relatively new to Linux, have been using it for about 6 months already. I like Gnome shell more than Unity but looks like in 16.04 Ubuntu plays a trick on me. As soon as I install gnome Ubuntu ...
0
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1answer
18 views

14.04 boot stuck at “Loading initial ramdisk”

I have a recent installation of Ubuntu 14.04.4 that is freezing at the "Loading initial ramdisk" stage of booting. What is the best way to troubleshoot this? The hardware is a Lenovo Thinkpad e410, ...
0
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1answer
24 views

I have a problem with dual boot after setup

Today I have downloaded Ubuntu but I can't use Ubuntu with windows like dual boot, for everytime I have to change boot order by hand while setuping Ubuntu I didn't prepare memory for Ubuntu by Hand it ...
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0answers
18 views

HP pavillion x360 i5 acpi=off no suspend & wifi

as ya know, me Core i5 13inch HP Pavillion no like ubuntu :'( so i NEED acpi=off to get more then, a BSOD (booting in legacy mode shows its actually a kernal panic :/ ) and no other command works ...
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2answers
46 views

Win 10 and Ubuntu - cannot create dual boot

I'm pretty sure I did everything - turned off the fast start up, ensured first boot is cd and everything is UEFI. First install I got Ubuntu 14.04 working ok - though I did have two boxes to select ...
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0answers
20 views

Writing ubuntu img to USB using dd results in corrupt primary GPT header

I have a 64GB USB 3.0 drive that I plan on installing bootable operating systems to for sysadmin purposes. My primary operating system is Mac OS X 10.11. I have a copy of ...
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4answers
39 views

Being started of Ubuntu

I am a new comer of Linux. I went into the official website of Linux and it recommends me to use Ubuntu. And I have some questions about Ubuntu. Is Ubuntu free of charge? Now I am using Windows, do ...
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0answers
14 views

Frequently getting “kernal panic:not syncing ,attempted to kill idle task” error and system is shuting down

My system is frequently shuting down and getting error " kernal panic:not syncing ,attempted to kill idle task". I am using ubantu 14 os.
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0answers
86 views

failed to boot after install Lubuntu 16.04

I have attempted to install Lubuntu 16.04 It completed install but on rebooting came up with message /dev/sda1: clean, 121492/3571712 files, 864878/14260224 blocks and then hangs with cursor ...
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2answers
30 views

Ubuntu to Windows 10 [duplicate]

My end goal is that I want to wipe all of Ubuntu off my computer completely and run Windows 10 solely. Right now I have both of them on my system, but I am unable to get to the Windows 10 login screen ...
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1answer
114 views

Does this answer work for UEFI computers?

One of my most popular answers is instructions on how to repair grub. Over time, others have contributed bug fixes to the answer. A recent comment, though, made me wonder if it works on newer UEFI ...
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0answers
30 views

Can't install Ubuntu 16.04 or any linux distro

So I recently rebuilt my desktop because the older parts were just slowing down my gaming. But now, I can't install ANY distro of linux on my system. I burn my ISOs in DD, and the live USB is ...
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2answers
29 views

when i run ubuntu the fan make noise and run load

hey guys i really tired of looking for any way to solve this problem when i run Ubuntu the fan start making noise and works loud my laptop is dell inspiron 15 3421 i3
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0answers
7 views

Grub2 doesn't display correctly - most of the time (inspiron 1090)

I have a Dell Inspiron Mini Duo (1090) with a 16GB samsung SSD and a fresh Ubuntu 16.04 installation. My issue is with Grub2. Most of the time, when the laptop starts up, all I get is a blank maroon ...
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0answers
16 views

Ubunutu won't boot when secondary storage drive is removed

I have a secondary storage drive installed in the optical drive. If I remove this drive I cannot boot and get dumped into emergency mode. When I put the drive back in, I have no problems. Is there ...