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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0
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1answer
17 views

Kernel Panic at boot Xubuntu 14.04.2

I'm receiving a kernel panic when I try to boot Xubuntu 14.04.2 - this is my System: Windows 8 (sda2) Xubuntu 14.04.2 (sda7) Kali Linux (sda9) First, I installed Xubuntu next Windows. That was no ...
2
votes
0answers
40 views

Trouble Deleting a Partition Containing Grub

Update: I have resolved one of my problems myself, but still need help to delete a partition. I left the original post intact in case someone has a similar issue and can quickly reference this post. ...
0
votes
0answers
18 views

Ubuntu install issues

i'm fairly new to linux in general so i've been trying outdifferent distros like ubuntu, lubuntu, Elementary OS, ETC... And now i've decided to use ubuntu sinceit's the easiest but i can't seem to ...
1
vote
1answer
31 views

Help with dual booting Windows 7 and Ubuntu 14.04

I have recently attempted to install Ubuntu 14.04 onto a partition on my hard drive, which is about 60GB in size. I was able to install it onto the partition. After the installation is finished, I ...
2
votes
1answer
7k views

Can not mount /dev/loop0 (/cdrom/casper/filesystem.squashfs)

I downloaded 12.04.1 and md5 sum checked them and everything is good. Made a live usb and booted up... Just gets to where its about to start with the purple ubuntu loading screen then it goes back ...
2
votes
2answers
12k views

Boot into Ubuntu from Android Tablet with Live USB Drive

I have an Android ASUS Slider tablet. I have successfully installed UBUNTU to an 8GB thumb drive. I would like to boot into the thumb drive the same way I do with a windows system except I would like ...
1
vote
0answers
32 views

How can I restore Master Boot Record in Ubuntu 15.04?

Old computer running Ubuntu 14.10 died so I purchased a new machine and had the HDD (500GB) from the old machine swapped into the new machine along with a new 1TB drive. Everything fired up OK so I ...
45
votes
8answers
78k views

How to create a bootable USB with multiple ISO images in it

What I want is to create a bootable pen drive that shows GRUB menu and I can select any of the several bootable systems from there to install/run. I have several ISO images that I want to install in ...
-2
votes
0answers
29 views

Elementary OS not booting [closed]

I have a problem. My computer turns on normally, and the OS starts booting. The cursor comes up and some graphics start appearing, but suddenly it jumps back to the boot text, then does the same thing ...
0
votes
1answer
281 views

Cannot boot Ubuntu from Acer C720 shell

I'm no longer able to boot Ubuntu from my Acer chromebook. I would be very grateful for any help. I get the following messages in the Shell: crosh> shell chronos@localhost / $ sudo startxfce4 ...
2
votes
6answers
48k views

Install Ubuntu in UEFI mode (unable to boot from USB)

I recently bought a Dell Inspiron 15R SE with Windows 8 (64 bit) pre-installed (UEFI supported). I want to install Ubuntu in dual boot with Windows 8. I tried to follow all these instruction and these ...
0
votes
2answers
1k views

Live usb does not work!

Unfortunately, I am not able to setup up Ubuntu on my system as I am having trouble creating a functional live usb. I have downloaded the installer and the iso from the Ubuntu download page and have ...
1
vote
1answer
14 views

14.04lts data rescue

My 14.04 installation has been stable until the latest round of updates. Now on boot I get to the log in password, when I enter it the screen goes blank then random splashes of colour, mouse pointer ...
0
votes
0answers
29 views

Home folder does not open and “Continue to wait” message

After I upgraded almost everything in my system (it took a long time and I executed only one command from the terminal, probably sudo upgrade or update), my Ubuntu 12.04 became a mess. It sounds ...
1
vote
2answers
3k views

Ubuntu 14.04 not booting after installation

I have a Vaio Pro and had Ubuntu 13.10 with EFI boot on it which worked fine until I did something wrong. What I did: reinstalled Ubuntu 14.04 run boot-repair create the ...
1
vote
2answers
4k views

Diskless with Ubuntu 12.04

I'm trying to setup a new diskless solution with ubuntu 12.04 without any success. I followed this howto: https://help.ubuntu.com/community/DisklessUbuntuHowto But the initramfs seems not to be ...
0
votes
1answer
52 views

boot problem after upgrade Ubuntu 14.10 to 15.04

I upgraded Ubuntu14.10 to 15.04, using software updater. After finished it , I restart. Now on a restart it fails to make it to the login prompt. The system looks to be in a cycle of failure and I see ...
0
votes
1answer
36 views

Can't boot any live cd anymore [on hold]

I have a dual boot setup on a UEFI machine, and until today I had no problems with this setup. However couple of days ago I tried installing Fedora 22 Beta. I was able to boot to the menu with: ...
2
votes
1answer
77 views

My boot volume is full, what should I do now?

I keep on getting an urgent error message telling me my BOOT volume is full! How can I safely clean this up? Please be aware, I am a newbie in Linux. This is the result of uname -a: Linux ...
-1
votes
0answers
29 views

How to reinstall a deleting MBR partition

I removed by mistake the MBR partition at the beginning of my disk (no kidding). Now I can't boot. Is there a way to fix this big problem without reinstalling all the system ?
0
votes
2answers
41 views

Couldn't make pendrive boot-able using UnetBootin

I've an iso file for RHEL in one of my pendrives. Now I want to first make the device bootable, so that later on I can put RHEL as a VM. Now the problem is even after following the instructions to ...
4
votes
1answer
87 views

Slow Ubuntu Booting

Problem: It takes too much to start Ubuntu 14.04.2 LTS 32-bit (7 minutes after the Grub screen). Problem description I turn on the PC 1 minute after the Grub screen appears Once selected Ubuntu ...
1
vote
2answers
68 views

Can not Boot up laptop after Linux installation

I have a windows 8 laptop. I went to install fedora 21. I deleted the D drive which had nothing on it. I then installed fedora on that partition. I restarted the computer and it booted into the bios. ...
0
votes
3answers
37 views

Installed Ubuntu 14.04 alongwith Windows 7

Today I installed Ubuntu 14.04 with Windows 7 and now only 1 operating system ie Ubuntu in working I want to use Windows also what should I do.
0
votes
1answer
24 views

Ubuntu installation on UEFI system - grub console after boot

After a short (but bloody) battle I was finally able to install Ubuntu on my Dell XPS 13 (the 2015 one). After rebooting all I can see is the grub console. Typing exit pops up the Windows system that ...
0
votes
0answers
42 views

Error: environment block too small. Press any key to continue

I am running Ubuntu 15.04 and getting this error in grub menu Error: environment block too small Press any key to continueI went through this AskUbuntu Post about this problem but unable to solve it ...
8
votes
4answers
39k views

Unable to mount NTFS hard drive partition “The disk contains an unclean file system”

I have dual booted ubuntu 13.10 and windows 8.1 in my laptop. Earlier my window partition(C drive) and other NTFS partition was accessible from ubuntu. Now its giving me this error and not mounting: ...
0
votes
0answers
14 views

Magic alloc can't be resolved using live-cd

Seems like when updating from 14.10 to 15.04, I screwed my grub2 installation and now when I boot from live-cd and try applying the boot-repair, I cannot boot my ubuntu distribution. Here is the log ...
0
votes
0answers
30 views

Booting Problems - Ubuntu 14.04.2

I had a fair bit of issues installing Ubuntu 14.04.2: basically, I think Grub wasn't running; when asking for the password, the display stayed dark, as if it was off. Waiting a few minutes until ...
1
vote
0answers
9 views

my pc displays GRUB and doesn't starts

I just tried to install ubuntu on my PC. I ran Wubi and rebooted computer. My pc has two partitions, one with windows installed and the other with an ubuntu-based linux OS called Linkat, created in my ...
2
votes
0answers
11 views

New Ubuntu 14.04 installation with full disk encryption prompts for passphrase in console

My previous Ubuntu 14.04 installation launched to a graphical screen with the Ubuntu logo and a text prompt under it for passphrase insertion. I did a distro upgrade, which broke my installation, so I ...
0
votes
1answer
2k views

Ubuntu 12.04 cannot start

I just installed Ubuntu 12.04 64bit, and I cannot start it. I tried twice. The first time, I used a CD I burned. (The CD works for my another computer, so it is OK.) After wubi did something in ...
0
votes
1answer
14 views

Force GRUB menu to choose my OS

I've installed Lubuntu on a pc. When the pc turns off incorrectly, sometimes, at the next boot, the grub menu appears and it wait for my choise. I would like to run my os, every times and in any case, ...
1
vote
6answers
13k views

How can I create a bootable iso from an extracted Ubuntu 13.04 iso?

I have an extracted copy of Ubuntu 13.04 iso (live CD), but if I burn it directly it will not boot. Is there any way to create a bootable iso so that I can burn it to a DVD or USB flash drive? I ...
0
votes
0answers
25 views

Ubuntu stopped booting

Ubuntu 15.04 has been installed. An update published May 21th was processed, which contains a new kernel. It stopped to boot with a message "Starting version 219." I have a Ubuntu bootable usb. ...
0
votes
1answer
3k views

I really wanna use ubuntu on my dell venue 8 pro

I am using dell venue 8 pro. but I think windows8.1 it is not that good on tablet. it is just allowed touch input system. but i think ubuntu is working well on tablet. so i searched a lot in google ...
0
votes
0answers
14 views

Changing Ubuntu's Splash screen in 14.10 [duplicate]

I need to know if I can change the boring Ubuntu logo with the five dots changing from White to Orange after the GRUB2 menu, I know I can change GRUB2's menu look with the documents on the Ubuntu ...
-1
votes
0answers
31 views

Can't install Ubuntu on my Laptop already running windows 8.1 [duplicate]

i followed the steps word by word even searched google for a solution but nothing. I want to dual-boot Ubuntu and Windows 8.1 the problem is I've tried to disable the Fast-boot and UEFI Settings ...
0
votes
1answer
29 views

Suddenly unable to boot from Ubuntu Live USB,

I see there are several similar questions on here, but none exactly matches the problem I think. I created a bootable USB of Ubuntu 14.04 and 15.04, via unetbootin, on OS X. The USB live session ...
-1
votes
1answer
20 views

Unable to boot CD

I have installed Ubuntu 15.04 and uninstalled Windows some time ago; However, i want to re-install Windows again and burned a copy to a CD (DVD+R) using write to disc pop-up right-click menu on the ...
1
vote
1answer
108 views

I keep getting the same GRUB error?

Any help will be greatly appreciated. Every time I start my computer, I encounter the error: '/boot/grub/x86_64-efi/normal.mod' not found. Here is a screenshot of my hard drive partition: I have ...
0
votes
1answer
27 views

GRUB “unknown filesystem” error on second boot of each day

I've installed a new 64GB SSD in my HP Compaq 2510p laptop. The SSD model is KingSpec KSD-ZF1. This system is a single-boot machine running Ubuntu 14.04.2 LTS. There are no other operating systems ...
0
votes
1answer
53 views

Upgraded Lubuntu 14.10 to 15.04, now get “Kernel Panic: not syncing VFS: Unable to mount root fs.”

I have a home server with Lubuntu installed. A few days ago, a Ubuntu update dialog box appeared, and I seemed to update to the latest version with no trouble (at least, no apparent errors). However, ...
1
vote
1answer
39 views

Portable installed ubuntu on a Pendrive that boots on UEFI and BIOS [duplicate]

There seem to be quite few tutorials for that but they are either for having both live and installed, or supporting old 32 bit systems and so on and have some complicated steps. I simply want to ...
0
votes
1answer
27 views

Landing in the GRUB command line at start up (bcs of XFS filesystem at /boot!)

Edit. The problem that I landed directly in the GRUB command line was another bug than originally asked for - see the answer. I changed the title accordingly. I think the title says it all. I'll ...
2
votes
2answers
4k views

How do I open the boot menu?

I want to uninstall 12.04 and install Ubuntu 13.04 instead. When I was installing Ubuntu 12.04 from Windows 7 opened the boot menu F12. I have read that on Ubuntu to enter the boot menu I have to ...
1
vote
5answers
40k views

How to delete grub entirely from grub rescue. Boot windows only

I had installed ubuntu (twice actually) onto the same drive. I wanted to 'try again' since one of them didn't install correctly and the other installed differently, but it worked. I was getting ...
1
vote
2answers
4k views

Grub2 on LVM: How can I switch between alternate root LVs?

I have a working setup of Ubuntu Server 12.04 LTS (precise) installed on a LVM Volume (/dev/vg0/root). /boot is on the same LV, and Grub2 boots nicely from it using its own raid/lvm/xfs modules. Great ...
0
votes
0answers
22 views

Cannot boot to ubuntu (dual-booted with Win8)

I made an attempt to install Ubuntu today from a DVD. It worked well for about an hour, when I was working in the tty's, getting things updated, etc. I closed the my computer's lid and upon ...
1
vote
0answers
19 views

Error with qemu emulator

I was writing a boot sector program(in assembly) and created the binary using nasm. The command od -t x1 -A n boot sect.bin confirmed the bytes the assembler had created. However, when I loaded ...