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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8 views

Deleted Kernals, tried to update, can't do anything with full boot directory

I tried to run a backlog of updates for my ubuntu computer (lenovo T420 if that's relevant) and received a "your boot is full" message. I've had this before and decided to remove some kernals. The ...
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0answers
14 views

Trouble installing Ubuntu on a Gigabyte motherboard

So I've been reading around here about similar problems to mine but nothing helps. mainly because every one is having problems after the 15.04 update from 14.04 or 14.10. my problem isn't with ...
1
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1answer
3k views

Boot failure after upgrade /dev/mapper/isw…Volume01 does not exist

I upgraded to 12.04 and now my system won't boot. It complains about /dev/mapper/isw...Volume01 does not exist and drops me to busybox. cat /proc/cmdline tells me it is indeed trying Volume01. ...
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0answers
36 views

Ubuntu live disk stop halt in the boot process

I have just bought a new ASUS laptop for my son. It have pre-installed Windows 8.1. I made my usb-live stick as I use to and tried install ubuntu. It use to be simple. I switch off fast-boot in bios ...
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0answers
21 views

“mount: wrong fs type, bad option, bad superblock on /dev/sdc1” when mounting ext4 drive

I'm trying to mount an ext4 partition on another drive so it can be mounted at login, but whenever I do, I get this message: Error mounting system-managed device /dev/sdc1: Command-line `mount ...
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0answers
13 views

I have osx needing 'legacy' boot and linux using efi can I set up osx for efi boot?

I have osx needing 'legacy' boot and linux using efi can I set up osx for efi boot? At present I can boot either linux or an efi-booting windoze10 install, but to boot into osx I have to first enter ...
0
votes
1answer
33 views

Dual Booting Linux Distributions

So I decided I want to build my own LFS system on the same drive of my Ubuntu partition. I want to mount the LFS system but I do not know where the proper place to mount it at. Should I mount it as / ...
3
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2answers
431 views

Lost disk space after switching to Ubuntu from Windows

I am new to Ubuntu and was really excited to try it. I did my home work before installing Ubuntu on installation topics. So, I'm fairly knowledgeable about systems. Hardware: Dell Inspiron 14R ...
0
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1answer
11 views

Booting up - Can't get my Toshiba portable hard drive to load up - no icon visible?

When I try to load my portable hard drive to back up - it does not load. It looks and acts likes it is being read ie the light flashes - then the light is fixed and no icon appears on screen.
0
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1answer
26 views

How do you force start ubuntu on Macbook Pro

My MacBook stopped running LION OS so i decided to install Ubuntu on it. I followed the steps set out (see below) and got Ubuntu working well for a few days. Then it would not boot past the famous ...
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0answers
15 views

Xubuntu black screen after install (restart) HELP

I've never used this OS or anything like it (we all have to start somewhere) Ok, old laptop, nothing special. Have managed to format drive and install xubuntu (after multiple attempts) but as it ...
0
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1answer
23 views

After `apt-get upgrade` mdadm won't auto-assemble RAID at startup

After a simple apt-get upgrade, mdadm won't assemble my intel raid anymore automatically. This leads to fstab entries not being mounted and so the startup fails. I'm dropped into a recovery shell ...
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0answers
43 views

Having trouble dual-booting Linux (Ubuntu 14.04) with Windows 8.1

I would like to dual boot Ubuntu 14.04 for a software development environment, but I would also like to keep Windows 8.1 and my programs / media on a partition because I enjoy playing some ...
0
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0answers
19 views

I bought a new laptop and would like to know how to install Ubuntu on it [duplicate]

I am buying a Lenovo z50, which comes with Windows pre-installed. I want to install Ubuntu. I am new to Linux and am basically a home user. Please guide me (preferably step by step) how to install it. ...
5
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6answers
1k views

hide grub on computer start

I tried all the methods that comes in google search for "hide the grub menu on computer start", but still no luck, I guess things work differently on Ubuntu 15.04 ? this is my grub # If you change ...
1
vote
1answer
22 views

Cannot see Boot Screen on Ubuntu 15.04 running on Virtualbox

I have installed Ubuntu 15.04 on my laptop. Inside that, On virtualbox i have installed another ubuntu 15.04. I see the ubuntu logo during the boot on the host but on the guest I see the message ACPI ...
3
votes
1answer
183 views

USB works only when booting in recovery mode

I have Ubuntu 14.04 LTS 64 Bit installed on my HP Pavilion Windows Tablet with an Intel® Core™ i3-4030U CPU @ 1.90GHz × 4. When I've booted Ubuntu, my USB mouse does not work. The laser is lighting ...
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0answers
9 views

does LVM installation erase windows which installed earlier

i installed Ubuntu in LVM installation and when i restart my computer there is no boot menu there is no windows 8. how can i fix this? and does Lvm installation erase windows 8?
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0answers
31 views

Ubuntu unbootable without usb and usb partition umountable

I have an external 500 GB usb hardrive and my computer runs the latest ubuntu mate (15 64 bit). My computer can't boot into Ubuntu without the hardrive attached error dev/sdb no medium found is shown. ...
5
votes
4answers
14k views

How I can change the GDM login screen wallpaper?

How I can change the GDM 3.6 Wallpaper? I dont mean the desktop background, but the Wallpaper at the login (GDM 3.6). Thanks Thank you for your answer, I know exactly what you mean. Recently I ...
1
vote
1answer
768 views

Startup Disk Creator “Checksums do not match”

So I tried to create a bootable USB dirve with Startup Disk Creator on Ubuntu 12.04 using a Ubuntu 14.04 iso. The first USB drive I tried already had an old boot image on it and Startup Disk Creator ...
2
votes
1answer
44 views

Xubuntu 14.04.3 - Monitors turn of during boot

After installing Xubuntu 14.04.3, I can not boot into the system. Instead, after selecting ubuntu within the grub menu and pressing enter, a few messages are shown and the monitor turns of after ...
3
votes
1answer
39 views

Systemd is really slow in comparison to upstart

I have been using Ubuntu for a long time now, this is what happened when I use: Systemd: It performs really bad using systemd: it uses 95% of the CPU all the time and the PC gets really hot. Also it ...
0
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1answer
42 views

from Windows 10 to Ubuntu issues [duplicate]

Good evening, I confess, I'm a begineer. I've just heard about Linux and wanted to try it on my just turned Windows 10 PC. wubi and Windows 10 Yet, I met a first issue with wubi which told me ...
2
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2answers
893 views

Failed to open \EFI\Microsoft\Boot\grubx64.efi - 80000000000000E

I have a fresh install of 14.04 on a new SSD. Everything was running fine until I ran boot-repair for some reason that I cannot remember. Now when I boot up I get the following errors: Failed to open ...
0
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0answers
30 views

Grub menu not being shown after installation of kubuntu 15.04

I am using windows 10 ( upgraded from 8.1 ) and I installed kubuntu 15.04 using a bootable usb. I installed this into sda5 with 40GB capacity. I also created a swap partition of 8GB. After ...
0
votes
2answers
98 views

USB drive not mounting on Kubuntu; mounts on Ubuntu 14.04

I'm running Kubuntu 32bit (not sure which version). I want go back to having Ubuntu 14.04 which I have on my USB drive but it isn't mounting it. I have tried this but but it doesn't find anything: ...
0
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0answers
24 views

Ubuntu 12.04 32bit [duplicate]

When I login using credentials , the desktop screen doesn't load after waiting for some time. I have tried using commands sudo apt-get install ubuntu-desktop unity and also tried sudo apt-get ...
0
votes
1answer
26 views

Unable to boot computer

Ok, so I have a Dell XPS that I bought around 2011. About two weeks ago, it started behaving strangely during the boot load. First of all, it makes some weird clicking noises. When that happens, I ...
1
vote
0answers
26 views

cryptsetup: cryptsetup failed, bad password or options?

today ,i installed ubuntu 14.04 on my laptop running windows 8.1 using Universal-USB-Installer-1.9.6.1.exe. When i finished the installation, i was asked to reboot. I did so but the passphrase wasn't ...
0
votes
1answer
30 views

14.04 booting issues after install

after installing 14.04, the system will not boot. This is not a dual boot set up. I have reinstalled and tried everything that i can find on line to be honest. This isn't the first time I've ...
1
vote
1answer
26 views

Will not boot beyond GRUB command line

Upon installing rEDIt and Ubuntu on my Mac OS X Yosemite from a disk, Ubuntu Asked me to update. I say yes and it loads for a bit and flashes to a purple outline on a black box and sits there, I ...
18
votes
6answers
49k views

How to boot from non-Ubuntu live ISO images like Fedora or CentOS?

I found that it can be done with loopback as follows menuentry "Lucid ISO" { loopback loop (hd0,1)/boot/iso/ubuntu-10.04-desktop-i386.iso linux (loop)/casper/vmlinuz boot=casper ...
0
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0answers
14 views

Could not find kernel image kernal isoliunix/isoliunix.cfg

Since last 5 hours i get tired when i trying to install ubuntu through my flash memory and finally i surrender i trying all the solution in the google but nothing work i download Ubuntu 14.04.3 LTS ...
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0answers
14 views

i install ubuntu14 on atom z3735e tablet but don't boot HELP ME

i install ubuntu 14(no dual boot) on my tablet with atom z37353 but don't boot:a message say boot failure. the system is 64bit because it function with efi mode adding bootia32 file. the guide said ...
0
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0answers
18 views

When attempting to install Ubuntu 15.04 keeps rebooting into installation

When I try to install Ubuntu onto some old hardware I had lying around I encountered a problem. I can't install from USB, dont know why it just doesn't get recognized as a bootable device, DVD doesnt ...
0
votes
1answer
1k views

Ubuntu 14.04 hangs sometimes on boot after CUDA 7.0 installation

in the last couple of weeks I have been struggling trying to set up my laptop for c++, qt5, OpenCV developing. System Info: Latop: MSI GE60-2PE Apache Pro (Graphic: Intl HD Integrated Graphic ...
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0answers
20 views

Lubuntu 15.04 installed on USB won't boot on a Hewlett HP 20 All-in-One PC

I am a basic user and this is my first time trying to install Lubuntu 15.04 64 bit onto a USB from a CD. Installation went okay and when asked to reboot it booted up again without a problem. Then I ...
0
votes
1answer
38 views

Hoy do I get my data from Windows 8 back?

I had Windows 8 installed in my HP-PC when I proceeded to install Ubuntu 14.04 to run alongside it. My PC has a 2TB hard drive where Windows 8 and all my data was installed. In order to make the Linux ...
0
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0answers
32 views

Boot to black screen Ubuntu 14.04

I installed Ubuntu 14.04 and after it finished installing it asked me to reboot the computer. I attempted the reboot, but it sent me to a black screen, no cursor or anything. I turned it off and when ...
1
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2answers
71 views

How to paste the text selected from gui mode after switching into cli mode?

I have set up ubuntu-14.10 to boot up in text mode (cli) and I start gui with the command sudo service lightdm start then toggle between gui and cli mode with Alt+ctrl+F1 (to get into cli) and Alt Gr ...
0
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0answers
26 views

Grub Rescue after installing Elementary OS Freya [migrated]

I used to dual boot windows 10(recently upgraded from windows7) and elementary os luna. Windows is installed on my C drive, and Luna was installed on a partitioned D drive (i splitted 100GB for ...
0
votes
1answer
22 views

Dual-booting Windows 8 and Ubuntu with UEFI on two separate drives?

I've already installed Windows 8 in UEFI mode and it is currently running off of one SSD. On another SSD, I want to install Ubuntu GNOME. Is there any sort of special configuration or setting I have ...
0
votes
1answer
7k views

How is ubuntu live user graphical session (startx) started up in a LiveCD?

I am trying to build a custom ISO, using ubuntu-builder. I've taken a 12.40 mini remix ISO as a starting point. Here is my specific example - however, I'm interested in principle how the process goes ...
0
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0answers
47 views

Problem installing Ubuntu 14.04.3 on a 64GB flash drive-won't boot properly

I have thrice tried to install Ubuntu 14.04.3 on a 64GB flash drive, set it for automatic logon during the install and gave it a password. When I try to boot the new system it gets as far as the logon ...
0
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0answers
19 views

Can't boot Ubuntu, but Debian can, help me please!

I am having problem with boot Ubuntu or any other Ubuntu based OS. After installation is complete I am stucked at black screen. Tried to change grub, activating graphics from additional adapters via ...
0
votes
0answers
17 views

Stuck in grub rescue (error: invalid arch-independent ELF magic)

Well, I fiddled a bit with my partitions, now my computer wont boot. I get this message: error: invalid arch-independent ELF magic grub rescue> set gives cmdpath=(hd0) ...
4
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
30 views

hd1 cannot get C/H/S values

Ok, I know there are many questions about this topic, but I can't found a convince answer (fixing the problem or not). Recently I bought an SSD drive and installed in main SATA (hd0), I've replaced ...
0
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0answers
32 views

My Acer C720 all of a sudden won't boot my ubuntu install

I have a Acer C720 Chromebook. I was on Ubuntu. I rebooted, and I pressed Ctrl-L for Legacy Boot. It showed the bios screen. It said Booting from hard disk... and didn't do anything else. ChromeOS ...