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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Udev can't create persistent rules, read only file system

After upgrading to 15.04 I was messing around with drivers for my wireless card, so I thought to refresh the udev rules and deleted the /etc/udev/rules.d/70-persistent-net.rules file, thinking it ...
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1answer
16 views

Swap doesn't seem to mount after update

I updated to Ubuntu 15.04 and now my swap partition does not seem to mount. I'm not an expert, but it looks like the partition does not seem to have a UUID anymore. How do I get the swap partition to ...
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9 views

Ubuntu wont boot under systemd

I have just installed Ubuntu 15.04 on my laptop, the installation went fine but Ubuntu will not boot. Using the default boot options I get stuck at a prompt to enter an encryption passphrase that I ...
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1answer
16 views

Ubuntu Server 14.04 does not boot upon restart following fresh installation

I'm trying to install Ubuntu Server 14.04 on an old system I have rebuilt (Intel Core 2 Duo with 4GB RAM, PATA HDD). I've succeeded in installing Ubuntu using a USB stick and the system reboots to ...
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1answer
36 views

Long boot after upgrade from 14.10 to 15.04

Its take much longer after the upgrade from 14.10 to 15.04 but its not the case when i boot from a live USB. Do I need to purge or reinstall anything? I prefer the systemd method and I have the dmesg ...
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2answers
17 views

How to change grub2 color?

I want to change the grub2 menu color to black and white, also if it's related I wanted to change the purple color that appear between transitions when the PC boot. I'm using Ubuntu 15.04.
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36 views

Fresh Kubuntu 15.04 installation hangs on boot

I've just done a fresh installation of Kubuntu 15.04 on my Macbook Pro retina (june 2014) and it seems to get stuck somewhere during booting. I suspect it has troubles with the wireless adapter in my ...
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7 views

Disable automounting of hard disks on ubuntu live

I have an ubuntu live USB. When I try to boot it on a computer with a SATA hard disk, it automounts the hard disk and that would seem to corrupt the windows 7 installation which is on the hard disk. ...
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1answer
14 views

my PC showing grub rescue

Two operating systems are installed on my laptop: first Ubuntu and second Windows 7. But both are in same drive, that is the C: drive. I shrank 10 GB off the volume of C: drive and created a new ...
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1answer
89 views

Ubuntu 15.04 SLOW BOOT

I upgraded to Ubuntu 15.04 from 14.10 two days back. The boot time has increased a lot since then. I installed the boot-up manager(bum) and deselected Bluetooth and scanner support options. The boot ...
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0answers
17 views

Ubuntu stuck on the kernel log at boot

I've just upgraded my Gnome version, using the gnome3-staging PPA. Since it is still a little buggy, I've done a ppa-purge to come back to the 3.14 version shipped with Ubuntu 15.04. After a ...
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1answer
25 views

Why do I keep getting GNU GRUB?

My computer is not a dual-boot it is just Ubuntu. Why when I boot up do I get the GNU GRUB menu? It has options like recovery mode and stuff.
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24 views

How can I change boot splash theme, in Ubuntu 15.04? [duplicate]

I would like to alter the splash in Ubuntu 15.04, 64 bit.
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8 views

How to boot into Kubuntu if i have two disk?

at me is kinda driffent how i thought, after i installed kubuntu i rebooted my pc and it only boot into my Windows 7, if i boot my aother disk it will boot back into window and here my disks: ...
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0answers
21 views

Rebuild a vaporized dmraid array using mdadm

Executive Summary While upgrading from Utopic to Vivid, my system removed dmraid, which I was using as the RAID controller for the array that I booted from. How can I rebuild the array using mdadm ...
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1answer
39 views

Issue installing Ubuntu via USB - no the normal install instruction forums have not helped

I'm a new to Linux operating systems and am having some problems installing Ubuntu 14.04.2 I am trying to install it on a HP laptop running Windows 8.1, I have created a separate partition of my hard ...
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0answers
13 views

Using and installing from DVDs

I downloaded the newest Ubuntu iso-file and burned it on a DVD as described here: How to Burn an ISO. In my bios I changed the boot order with CD/DVD on the first place. Afterwards, my machine made ...
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1answer
16 views

Lubuntu 14.04 light do will not start

I have no clue what to do Sudo lightdm /etc/modprobe.d is not a file update-alternatives: error : no alternatives for x86_64-linux-gnu_gfxcore_conf
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0answers
22 views

Installing Debian on MacbookPro, cant boot the iso [on hold]

this is my first question on AskUbuntu, but I use this forum almost everyday. This is the thing, I have a MacBook pro mid 2012 and I installed a full Ubuntu 14.04 LTS instalation on it. Removing all ...
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0answers
48 views

15.04 Mate install will not boot

After installing Ubuntu MATE 15.04 on my SSD I am always met with this error when rebooting: I have tried various partition layouts, as well as enabling updates when installing, but still no ...
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2answers
65 views

How to get Ubuntu 14.04 to detect and connect to open WiFi on startup from USB stick

I'm an 8th grade science teacher and I have recently been given 17 mini dell computers. All are in great physical shape, however, none of them have an operating system or hard drive. I can load Ubuntu ...
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0answers
3 views

“Boot Partition not Found” While booting ATB chromium os from external hard drive

So I recently installed ATB Chromium OS build on a partition on my external hard drive. When I try to boot from BIOS it says "Boot Partition not Found" and normally boots Ubuntu. Gparted recognizes ...
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0answers
13 views

Cannot boot to SteamOS after upgrade to 15.04

A quick overview of my system: I have Ubuntu, Windows 8.1, and a Debian-based OS (specifically SteamOS) all installed. All of them booted just fine before yesterday. Yesterday, I upgraded to Vivid ...
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9 views

udev Wait for Complete Device Initialization

During boot of Ubuntu 15.04 vivid the system waits too long for a usb device to be initialized. The problem is that the reported usb has a hub (front usb ports on my cabinet) but no device connected ...
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0answers
157 views

ACPI PCC probe failed; starting version 219

The previous two questions regarding the ACPI error message do not have answers that fix my problem with the same error. I have just upgraded to 15.04 and cannot log in after a normal boot. The login ...
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210 views

In Ubuntu 15.04 can't do graphical log in

I have done clean install recently of Ubuntu Desktop 15.04. And I was able to log in to the graphical environment until I enabled "boot to text" like said there: How do I disable X at boot time so ...
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1answer
18 views

Can't access my home directory “Encrypted private directory is not setup properly”

Hi I'm trying to access my home directory on my laptop hard drive through a live usb. I cannot boot into the OS on the hard drive and the home and root directory is encrypted. I have the encryption ...
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0answers
21 views

Getting an “Enter Passphrase” box at boot

I have upgraded from 14.10 to 15.04 today. On 14.10, I did have my home folder encrypted. I have never had to enter a passphrase before (except the initial setting of it). Right after upgrading to ...
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1answer
26 views

Windows 7 does not boot after I installed ubuntu on a second drive

I installed Ubuntu on a different drive to Windows 7, but after installing, Windows 7 disappeared on the boot screen, that is I don't have options to boot Windows 7, the computer start up directly to ...
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2answers
355 views

Ubuntu 15.04 doesn't start with nvidia driver

Hello I upgraded from Ubuntu 14.10 to 15.04 and when I use the proprietary Nvidia driver Ubuntu doesn't boot. It shows "Starting 219" on my secondary screen and on my primary screen it shows something ...
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0answers
20 views

Boot Ubuntu with only the built-in Mac EFI loader?

I installed Ubuntu 15.04 on a partition of my Mac Pro's HD. I can boot Ubuntu if I use refind. I don't really like refind at all. I was wondering how to boot Ubuntu with just the Mac OS X EFI menu. I ...
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1answer
23 views

can i add space to sda1 boot from sda2 extended

I tried getting help in another post (SDA1 almost full. What do i do? [duplicate]) and was told it was a duplicate.everyone was helpful and i tried the suggestions as well as going to a post on how ...
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0answers
23 views

Live USB doesn't start - GNU GRUB version 2.02

When starting my laptop, the first and only screen I see is "GNU GRUB Version 2.02~ beta 2-9 Minimal BASH-like line ...". I can't access to BIOS, nor use a bootable usb flash drive. It doesn't read ...
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56 views

Updated to 15.04, Black screen with flashing cursor.. Suspected grub issue

The black screen with the flashing cursor was completely unresponsive. I loaded up a bootable USB drive and did "Try Ubuntu". I started looking around in Gparted and found this.... ...
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0answers
17 views

cannot boot - Ubuntu 14.04 server - waiting for network configuration error

i am having problem booting into a ubuntu server. the simple error is "waiting for network configuration" The problem started when the server got turned off due to power failure. i have tried ...
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0answers
7 views

Ubuntu 14.10 server locked after cleaning /boot

My Ubuntu 14.10 server locked after cleaning /boot. It has been working without any problems for several months, but yesterday I received an error message saying that there was no space on /boot. I ...
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0answers
21 views

unable to boot linux

I have installed linux on my brand new alienware area 51. When I start it up it loads directly into windows. If I press F12 for options Linux is nowhere to be found. I have tried using boot repair to ...
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0answers
26 views

Old laptop wont boot up [on hold]

my laptop runnning ubuntu 10.04 is booting to a initramfs prompt. I tried booted off the cd but it does not see it. I can't enter bios to view the boot menu or to view boot options either. Does ...
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0answers
9 views

Ubuntu boot stuck “stoping userspace bootsplash”

I have Ubuntu 14.04. When I try to boot my PC, it hangs at the message stopping userspace bootsplash. I tried the recovery mode and repair broken packages, but it's still hangs. Can someone help?
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14 views

Plymouth boot screen, boot messages on a background

I have set a custom background for my Grub screen, my Plymouth splash and my MDM greeter. I use the same image for all three backgrounds and it looks pretty good so far. What I would like to do now ...
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0answers
26 views

Boot from USB not working on Lenovo X1 3rd gen

I have a brand new X1 3rd gen with Fedora21 installed. After some kernel issues, I decided to install Ubuntu because when I was looking to fix my issues there was so much more help for Ubuntu than ...
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0answers
268 views

Ubuntu 15.04. Problem booting with systemd

I just upgraded Ubuntu 14.10 to 15.04. When booting system with systemd it only gets to login screen. After login following message is printed: /usr/lib/update-notifier/update-motd-fsck-at-reboot: ...
2
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1answer
35 views

Do I need a bootloader in my existing hard disk to boot from USB?

The question is aimed at understanding the boot functionality when I try to boot from USB/a pendrive containing an OS. Does it use the bootloader of my existing OS in the HDD when I try to boot from ...
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1answer
36 views

Ubuntu 14.10 doesn't boot after update from 14.04

first i got to say, i'm a complete newbie to ubuntu/linux. I bought a notebook a couple of days ago, with win7 installation on boot. After Windows i installed Ubuntu 14.04. I want to try something new ...
2
votes
1answer
52 views

Full Disk Encryption Passphrase at Boot: Keyboard not working

I have upgraded my System with full disk encryption from 14.10 to 15.04, and now i'm not able anymore to input my passphrase at boot and therefore can't access my system anymore. Strangely it worked ...
2
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0answers
11 views

Powered down my laptop during a drive partition, any way to save some data?

I was in the process of partitioning my laptop drive which was running the latest version of Ubuntu when I was forced to turn it off, knowing the damage it could cause. When I turned it on later it ...
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1answer
20 views

List all services starting at boot

I'm looking for a way to get a list of all the services (/etc/init.d or upstart or systemd), which are supposed to be starting (or having been started at) boot. How do you get a list of all starting ...
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2answers
14 views

Boot-sector size is constant?

I read that first sector on any partition needs to be reserved for bootloader, regardless of weather it is used or not. But sector sizes changed from 512 to 4096 bytes. So how much space must really ...
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1answer
108 views

Ubuntu 15.04 USB devices powered off at encrypted root password prompt

Since my update from Ubuntu 14.04 -> 14.10 -> 15.04 it sems that i cannot boot my system anymore as i am stuck at the password prompt when ubuntu appempts to mount my encrypted root partition. The ...
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0answers
10 views

error: no such partition entering rescue mode grub rescue>

i have dual boot in my laptop win7 and linux.Accidentally i deleted linux partition.now when i try to boot it is showing following error error:no such partition entering rescue mode grub rescue i ...