Questions about the bootup process in Ubuntu. Use this tag if you have trouble booting Ubuntu or you have questions about the bootup process.

learn more… | top users | synonyms (2)

0
votes
0answers
3 views

grub2: error: /vmlinuz-3.16-ucs109-amd64.efi.signed has invalid signature [migrated]

I am using a derivative of Debian, called Univention Corporate Server. It's a nice appliance that I use for my home server. Yesterday I upgraded to the newest version and since then my server does not ...
0
votes
0answers
15 views

Ubuntu single install SSD keep deleting data

I have a HP-ENVY laptop with 32GB LITEON SSD and 500GB Harddisk. I have a single boot system installed with ubuntu 14.04 on the SSD, and have a Data partition on the HD. Partitions look like this ...
1
vote
1answer
25 views

Ubuntu 15.04 Kernel panic - Samsung Series 9

Samsung Series 9 Laptop crashes in ubuntu 13.04-15.10 and other Linux (debian, arch, freebsd). Check: cleaned laptop, change the battery, change CPU cooler, memtest, temp. kernel 3.11 - crashes ...
0
votes
0answers
9 views

Dual boot Win7 and Ubuntu 12.04 encryption question - ecryptfs

I have Windows 7 and Ubuntu 12.04 installed on my computer, and I would like to encrypt only my Ubuntu home directory. I have these partitions: system reserved NTFS windows 7 main partition (C:) ...
1
vote
1answer
63 views

“ALERT! /dev/mapper/server--vg-root does not exist. Dropping to shell!”

So I guess I messed up my Ubuntu Server just now. I installed a 500GB hard drive, formatted it with ext4 and then wanted to statically mount via editing /etc/fstab and the UUID. For some reason I ...
0
votes
2answers
46 views

Cannot boot directly from Grub2 on dual boot Windows 8.1 with Xubuntu 14.04.2

I had Windows 8.1 Professional and Xubuntu in VM, but now I want dual boot. First two partitions I had them before with Windows 8.1 ((1) EFI and (2) msftres) then (3) partition C: and (4) parition ...
1
vote
1answer
20 views

Will Ubuntu be able to replace windows 7 on my pc? And if which version will work for me?

I have a low spec pc.It has 1 gigabyte RAM, 2.8 ghz Intel processor, 256 mb graphics card. CurrentIy I'm running Windows 7.I heard that Ubuntu is way faster than windows 7. I just do the basics in ...
0
votes
1answer
40 views

Ubuntu won't start, emergency mode

Hello guys I installed Windows 10 on my laptop (toshiba satelite c660) and after that I ran live version of Ubuntu and restored GRUB (with official boot repair tool) so I can start Ubuntu again, after ...
0
votes
0answers
27 views

Custom Ubuntu 15.04 Installer - Fails grub install on UEFI systems

I used the ubuntu 15.04 64 bit ISO and customized it using UCK. I installed a bunch of packages into the custom installer & generated the ISO. It installs perfectly in Legacy mode (non UEFI) In ...
0
votes
0answers
18 views

Ubuntu won't save the settings I have done after installation

I had created a 4GB bootable USB stick of Ubuntu 14.04 LTS using Universal USB installer. I have installed Ubuntu on my Windows 8.1 PC and allocated it 30GB space. After completing the installation ...
1
vote
0answers
48 views

Won't boot, ACPI PCC probe failed

After updating, my desktop machine will no longer boot. It shows the message ACPI PCC probe failed, starting version 219 and then stops in with a command prompt and some text about it being in ...
0
votes
0answers
18 views

Ubuntu 14.04 : “serious errors were found while checking the disk for / ” and after that Linux hangs very often

I have been using dual boot alongside Windows 8.1 from 1 year. Very recently the windows shut down unexpectedly, and then started showing "Trying to repair Windows". I knew it would harm Ubuntu file ...
0
votes
0answers
19 views

booting error causes ubuntu to boot in text mode

Everytime I boot into Ubuntu I get this error "EDAC sbridge: ECC is disabled. Aborting.EDAC sbridge: Couldn't find mci handler." It's really annoying because I have to wait about 10 to 15 seconds for ...
0
votes
0answers
14 views

ubuntu wont start

I upgraded ubuntu today and when it asked me to restart the computer it froze so I did a hard restart and now it wont boot I just get a sceen similar to dos, is it a problem with the new software or ...
-1
votes
2answers
24 views

Grub will only boot one of my two windows OS [on hold]

I am perplexed with Grub and am hoping someone can advise me. I have three operating systems installed on my computer: Linuxmint 17 and Windows 7 on sda, and windows Vista on sdb. I updated grub and ...
-1
votes
0answers
9 views

installing ubuntu from burned disk doesnt work on boot, but does just from disk [duplicate]

i used one computer to burn ubuntu 14.04 onto a dvd disk, and when i boot onto ubunto form the drive it works perfectly, maybe a little bit slow. however when i try to install ubuntu on one of my hard ...
0
votes
1answer
17 views

Messy partitions: How do I fix my HDD and SSD partitions from a USB?

So after finding out I gave my external HDD 250 MB instead of 250 GB I tried to fix it by changing the partitions around with some popular software. Told me to restart my PC. Now every time I try to ...
0
votes
0answers
5 views

Trying to screenshot my computer for imaging but the PXE boot isn't working properly

Trying to screenshot my computer for imaging but the PXE boot isn't working properly. We're using a fog server to reimage it when needed but the PXE isn't working, any ideas.
1
vote
1answer
29 views

BusyBox v1.21.1 error

As I am new to the forum, I don't know where to ask this question, or even if there is a particular place to ask the question. Anyway, I have recently burned ubuntu 14.04.2 to a DVD and rebooted my ...
1
vote
0answers
14 views

Cant get 15.04 or 14.10 or any version of Ubuntu to boot on Flex 10

I've seen a few questions around bit no one has really been able to hope. Ive been trying to get 64bit Linux working on this laptop through its 32bit EFI every nown and again for about a year now and ...
0
votes
0answers
13 views

How do I generate a GRUB configuration file for another disk?

Assume I have two disks that both have Ubuntu installed on them. One is an internal drive and the other is an external drive (though this doesn't really matter). This procedure is running on the ...
1
vote
1answer
19 views

Mounting Drives as user at startup (FSTAB)

I am running Ubuntu and have been having some trouble mounting my 2nd internal HDD. It would mount with settings made by Disks program but would mount and be owned by root at startup even though I ...
1
vote
0answers
13 views

If I have disable recovery option and someone still get's to root using the ro recovery nomodeset how do I password protect root?

If I have disable recovery option and someone still get's to root using the ro recovery nomodeset how do I password protect root? I know how to block the recovery just Want it to require a password ...
1
vote
1answer
51 views

installing linux to usb, didn't change boot loader installation, can't get into windows

I was trying to create a persistent usb stick, with everything contained on the usb (including grub or whatever). I used the live cd to install and was pretty sure I changed the boot loader ...
1
vote
1answer
78 views

How do I read the messages printed on startup?

Ubuntu 14.04 has recently started displaying a message on the purple screen that normally just displays the loading dots: ot present It appears to be a portion of a message. How can I read the ...
1
vote
1answer
18 views

“permission denied” when converting ubuntu.iso to ubuntu.img

I'm trying to make my macbook a dual boot with ubuntu with a USB drive, but when I go to terminal and put in the command to convert the file from iso to img it just says permission denied, and so I ...
1
vote
1answer
32 views

Unable to install Ubuntu. Cursor blinking on black screen

I have burnt Ubuntu ISO to a USB. When I boot from it, my laptop shows a black screen with a cursor blinking on top-left. This cursor keeps blinking endlessly. I left it overnight once to confirm that ...
0
votes
0answers
9 views

Problem with lost files on EXT3 Linux partition

i've got a big problem with files that have disappeared from EXT3 partition. This morning i have recived many i/o errors on consol of my linux server. I could not do anything in bash. After reboot ...
0
votes
0answers
28 views

Ubuntu 15.04 can't shutdown — How to find a way to get a shutdown log

I think all is in the title actually, I just need a way to get a shutdown log to understand what can block it. I don't know if the problem comes from Ubuntu itself or Grub though, as my computer ...
0
votes
0answers
7 views

Booting delayed due to strange messages

I installed Ubuntu 15.04 alongside Windows 10 preview. When I boot into Ubuntu, I get a screen saying "...database maybe corrupt". This message appeared previously when my Ubuntu 14.04 crashed. But ...
0
votes
0answers
18 views

Kubuntu freezing on startup logo

I chose recovery option in Grub and it gets far enough that I can drop down to terminal and move around. I can't get the desktop to load no matter what I do. I've tried to edit xorg.config and it ...
0
votes
0answers
14 views

no visible mouse / frozen mouse after booting (Ubuntu 14.04.2 LTS)

Dear fellow ubuntu'ers I just booted my laptop after a long day of work and I noticed that there was no mouse cursor visible. I could google this problem via the mobile phone and found this solution ...
0
votes
0answers
19 views

Blackscreen with only mouse pointer after switching to Ubuntu desktop from Kubuntu on 15.04

After upgrading to Kubuntu 15.04, I am having a lot of problems. On reboot, it was stuck at Kubuntu logo (it keeps on glowing) but nothing happens. On switching to Recovery mode, I was getting "Error ...
0
votes
1answer
27 views

Lubuntu not booting without USB used to install it [duplicate]

My Lubuntu v12.04 (I'm not using the newest one because my Laptop doesn't support PAE) doesn't boot when the USB I used to install it isn't plugged in. I've overwritten my Windows XP with Lubuntu and ...
0
votes
0answers
15 views

Installation 15.04 can't start

I'm trying to install Ubuntu 15.04 (x64) on my new laptop, but running in to a problem everytime I try to boot from the Flashdrive. I can boot in to the flash drive, can choose Try ubuntu before ...
0
votes
0answers
13 views

Error while booting

When I cold boot ubuntu 14..04 lts I receive a error: attempt to read write outside of disk 'hd0'. press any key to continue
0
votes
1answer
38 views

Linux Won't Run

Wow. I recently installed Ubuntu on my Chromebook C720. I installed it using Crouton, so it runs Chrome and Ubuntu side by side. I can switch between them with a hot key. For more information on my ...
0
votes
0answers
23 views

Ubuntu wants localhost login, won't accept any input

After trying a thousand things over countless hours to get Ubuntu 14.04.2 LTS server installed on my Macbook 2,1 (loosely following these instructions), I finally got something that seems like a ...
0
votes
0answers
44 views

/dev/sda1: Inodes that were part of a corrupted orphan linked list found

I was using my Ubuntu 2015.04 (with ecryptfs-encrypted user home) laptop normally when suddenly, the hard drive became read-only. I rebooted and now it is stuck on this: [ 0.703206] ACPI PCC ...
0
votes
0answers
31 views

Installing Ubuntu on an Asus K501LX

I'm having an incredible amount of trouble installing Ubuntu on an Asus K501LX. I'm booting from a USB drive, created by usb-creator-gtk. I've attempted Ubuntu 14.04 and 15.04, as well as Kubuntu ...
0
votes
1answer
12 views

Boot stuck at IRQ 22

I'm running Ubuntu 14 on a Macbook any my system froze so I performed a hard reboot. However when it came back up, it shows me the grub menu but no matter which kernel I pick the boot freezes with the ...
1
vote
0answers
25 views

Cannot install Ubuntu onto USB stick / external USB harddrive from Ubuntu Installer

I've successfully used unetbootin (unetbootin-windows-608) to create a bootable USB memory stick from the ubuntu-14.04.2-desktop-amd64 iso image. I select USB boot from my bios boot menu and get the ...
0
votes
0answers
9 views

Can't boot ophcrack with Ubuntu installed on system

On all my other computers I am able to boot ophcrack from a bootable USB drive. On my Acer Aspier E-15 running Ubuntu I cannot boot it up. Don't ask why I need to boot ophcrack on my Ubuntu laptop I ...
1
vote
1answer
15 views

Can't boot from HDD after install of Ubuntu 14.04 on Lenovo V570

After installing Ubuntu 14.04 as the only OS on Lenovo V750, I am unable to boot. I get messages: PXE-E61: Media test failure, check cable PXE-M0F: Exiting PXE ROM. Boot order: ATAPI CD ATA HDD PCI ...
0
votes
0answers
25 views

How to Install Ubuntu on Sony Vaio VPCEG1BFX/ What's Best Ubuntu version for Windows 7?

I want to first say that I've spent the past few days searching for different variations of this question without luck. So I apologize if this has been asked before. How We Got Here A few days ago ...
0
votes
0answers
5 views

Boot script table modified, please contact vendor

I had a variety of distros on this Lenovo G50-45 laptop, most recently Debian 8 and now Xubuntu 15.04 x64. Whenever I want to put the system to sleep (suspend) I get the error message written in ...
0
votes
1answer
11 views

Grub rescue trouble after moving a partition

So I was allocating some free space for ubuntu and now grub is launching in rescue mode. I have done a lot of searching and tried what has been suggested here several times. Grub rescue - error: ...
0
votes
0answers
21 views

How to change the boot menu icons + rename on my MacBook Air for a liveUSB

So I have a liveUSB with persitence installed with unetbootin from my mac (using this tutorial : https://www.youtube.com/watch?v=MpwrrQ36yqM ), and it works perfectly. However, when booting my mac ...
0
votes
0answers
11 views

Recover bcache backing partition data

I had a bcache setup using a spinning disk and SDD. The SSD cache got busted. Now when I boot from a live CD, I can't mount the backing drive since mount doesn't recognize the bcache filesystem. Is ...
1
vote
1answer
53 views

unable to upgrade to lts (or any supported distro) I am new no dvd

I bought a cheap laptop off gumtree. Unfortunately it does not come with dvd so I cannot install 15.1 or 14.04 on it. I do have old linux 11.2 I think but there is no way that I can see to upgrade it ...