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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1
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1answer
54 views

Unable to shutdown, restart or logout

I am unable to shutdown, restart or logout from my ubuntu 14.04 machine. The screen goes blank, but the system hangs, then the fan begins to run fast. I have to turnoff the laptop by pressing and ...
0
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2answers
29 views

Computer boots on it's own

I have a Dell P4 that had Windows 7 and booted automatically every day a 8am. I downloaded and installed Ubuntu and it still "Magically" boots up. Could it be programed in the BIOS? I cannot find a ...
0
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1answer
3k views

How to start dhclient at boot?

Here's the problem: root@home:~# ping 8.8.8.8 connect: Network is unreachable root@home:~# dhclient eth0 RTNETLINK answers: File exists root@home:~# ping 8.8.8.8 PING 8.8.8.8 (8.8.8.8) 56(84) ...
1
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1answer
2k views

Ubuntu Install doesn't see Windows 7

I have researched this and tried the suggested solutions and haven't been able to fix it in my case. I have a Dell Inspriron 15 R SE. It came pre-loaded with Windows 8. I booted into the BIOS and ...
5
votes
1answer
3k views

Macbook Pro Ubuntu install freezes after grub menu

I am trying to install Ubuntu 14.10 (also tried 14.04.1 LTS) on my 2009 Macbook Pro 5,2. I have installed rEFInd, I have made a bootable USB as instructed on the Ubuntu site. I can get to the grub ...
1
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3answers
125 views

how can I install ubuntu on dell inspirion 15z

I am trying to install ubuntu 14 on a dell inspirion 15z with intel chip. The machine came preloaded with windows 8. I want to wipe windows out and run only ubuntu. When I try to install the ...
-2
votes
1answer
52 views

Help me. my boot time is more than 20s

i have a hp pavilion laptop with 2gb ram, intel i3 and 500gb hdd boot time is taking too long(>20s). tried preload, e4rat, e4defrag etc but still no improvement below is my dmesg output ...
0
votes
1answer
3k 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
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0answers
13 views

Dual boot RHEL 7 with ubuntu 14.10 installed

I have an old machine with processor Intel(R) Pentium(R) CPU B970 @ 2.30GHz with 64 OS support but does not supports VT and I am doing my RHCE certification in RHEL7 and I want to dual boot my ubuntu ...
0
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0answers
15 views

Simulate Universal Bootloader (DAS U-BOOT) with Qemu

I was trying to simulate u-boot with qemu for the ARM based versatile_pb board. I was successfully able to CROSS_COMPILE my u-boot source code with the gcc-linaro-arm-none-eabi-toolchain and create ...
18
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2answers
53k views

How to create UEFI-only bootable USB live media?

Having live media that can boot both ways can be a problem when installing Ubuntu onto currently available Windows 8 computers. In other words the key advantage to creating UEFI-only bootable USB ...
1
vote
1answer
29 views

Customize splash screen on live CD. || Initrd.lz problem

I try to customize splash screen on live CD session LUBUNTU 14.04. According to this solution, i need to edit initrd.lz file and replace with my own plymouth theme. So.. # cd extract-cd/casper # ...
0
votes
1answer
38 views

Problem installing Ubuntu on MacBook

I have a macbook that cannot get past the startup splash and the spinning wheel under the Apple logo. edit bodhi.zazen - removed extra information.
0
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0answers
127 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 ...
0
votes
0answers
10 views

U-Boot switch kernel on OMAP device

I build my own kernel for armel architecture, successfully installed it on my device, can see it in kernels list: dpkg --list | grep linux-image ii linux-image-2.6.33-500-omap ...
0
votes
1answer
34 views

cant install windows 8 while ubuntu is already installed ! [want to dual boot] [duplicate]

I am having ubuntu 12.04 LTS , I was trying to install windows8 but at the partition selection i got this error " We couldn't create a new partition or locate an existing partition" . But i had ...
0
votes
3answers
4k views

MSI GS70 reboot and select proper boot device or insert boot media

I just bought an MSI GS70 and I wanted to install Ubuntu from a Live USB. As suggested by other posts, I switched the boot mode to Legacy and after that the only thing that happens when I start up my ...
0
votes
0answers
35 views

I can't boot: SMBus Host Controller not enabled

I'm using Ubuntu Server 14.04.2 on Hydrahost without the GUI and run on console only. I need to autologin my guest user and try to follow the answer on this page, but it turns out make my Ubuntu ...
1
vote
2answers
5k views

an error occurred while mounting /boot/efi

I'm a new Ubuntu user. I have UEFI system and after few tries I succeeded to install (via usb), the latest version of ubuntu. Now when I'm trying to boot from grub i get this message: an error ...
0
votes
1answer
42 views

How do I install _“64-bit Power PC Ubuntu 14.04 ”Trusty Tahr“ Minimal CD” on my MeeGoPad Stick T01 64-bit?

The MeeGoPad Stick came with Windows 8.1 and Android that I also would like to remove and run Ubuntu only. I cant find a way to mount the mini.iso file to a bootable usb. I am using Rufus 2.1.649 and ...
0
votes
1answer
24 views

Not able to boot to already installed Windows and Ubuntu in Hard drive

I am facing problems with OS booting of my laptop. I had a dual boot Ubuntu 14.04 alongside windows 8.1. I generally work in Ubuntu and one day when I started my system Ubuntu wasn't booting up. It ...
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0answers
7 views

my dell gx270 wont boot up after failed ubuntu update [duplicate]

My dell optiplex gx270 wont boot up all i get is a black screen that says stopping system V runlevel compatability. I have not tried anything to solve this problem
0
votes
2answers
34 views

Grub dont shows after windows 8.1 update [duplicate]

I had ubuntu 14.04.2 LTS installed in dual boot with windows 8 with grub2 as boot manager. The problem arose when the updated windows 8 for windows 8.1, now grub is no longer displayed when starting ...
0
votes
1answer
13 views

Ubuntu Server doesn't boot after initial install boot on external hard drive

I have read a number of posts about similar issues but nothing so far has done anything to help me. I am also fairly inexperienced with setting up linux distributions. I am trying to instal Ubuntu ...
4
votes
3answers
14k views

System no longer boots, gave up waiting for root device, (initramfs), /dev/mapper/gnome-root does not exist

After installing an update, my system no longer boots. I have full disk encryption (the one the installer sets up for you) enabled so it usually asks for the key only seconds after booting past GRUB. ...
0
votes
1answer
21 views

Why does the screen go dead until I press escape every time I boot up?

I have Ubuntu Studio 14.04, it is the only operating system on my machine. Every time I boot up, the BIOS loads, and then the screen goes dead and will stay that way unless I press ESC, in which case ...
0
votes
0answers
8 views

Booting Problem after removing old kernels and having run boot repair

Having cleared old kernels, I am unable to boot into Ubuntu 14.04. After a suggestion here, I ran boot repair, which came up with the following URL http://paste.ubuntu.com/10816487. Could someone ...
2
votes
2answers
32 views

How can I make Ubuntu not mount efi partition by default at startup?

I've a Asus laptop with windows 8.1 pre-installed, I've managed to install Ubuntu alongside it, and for some days it worked fine. Today, out-of-the-blue, Ubuntu just goes black screen and I'm back at ...
0
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0answers
8 views

The disk drive for /u01 is not ready yet or not present

when i boot i see this message The disk drive for / is not ready yet or not present. Continue to wait, or Press S to skip mounting or M for manual recovery. i want solution to remove this message and ...
1
vote
1answer
154 views

Numerous hard restarts cause gradual damage to system?

I'm setting my mining rig on Ubuntu x13.10 AMD64 up to lose power about 5 times a day Those of us all can remember a time long ago when you'd get your hand slapped if you shut down a computer by the ...
0
votes
1answer
25 views

Error while booting Ubuntu 14.04

I am a beginner with Ubuntu. My laptop is working fine and very fast ever since I made the transition from Windows! So no regrets... In Windows I used Bluestacks to use Whatsapp on the PC. I also ...
0
votes
3answers
653 views

fail to install ubuntu server 14.04 64bit LTS from USB drive

I created a bootable USB using Startup disk creator (in ubuntu desktop 12.04 32bit), from an iso image of Ubuntu server 14.04 64 bit, when I want to boot another computer using this usb drive, The ...
0
votes
1answer
31 views

How to make grub2 recognize other Ubuntu installations again?

Until 13.10 and the grub2 version used there (version number is 2.02~beta2-... since years/multiple Ubuntu releases) parallel Ubuntu installations on other partitions (both with and without separate ...
0
votes
1answer
18 views

I can't install ubuntu on my asus s451l

I have a new computer and unfortunately it came with an operating system called windows. I want to install ubuntu on it but I have falied epicly, apparently it has something to do with UEFI. I already ...
0
votes
2answers
360 views

mdadm raid1 boot error

I created a RAID with Intel-Rapid-Storage(RST) - containing 2 3TB HDDs. Then I installed Ubuntu Server 14.04.1 64Bit. Everything worked fine and then I did a reboot. Then I got the following error ...
1
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2answers
89 views

Upgrade 12.04->14.04 broke mdadm RAID10. Boot stops

Server was an Ubuntu 12.04 x64 and was running just fine. All four drives in server are SATA spin-drives. /dev/md0 - swap RAID10: sda1, sdb1, sdc1, sdd1 /dev/md1 - root RAID10: sda2, sdb2, sdc2, sdd2 ...
1
vote
1answer
879 views

MDADM RAID1 Home Server System disk error: incrementally starting raid arrays mdadm: Create user root not found

I'm not sure what else to check. Everything below looks sane to me but the system hangs on boot. This is a home server with four disks crammed into a Dell OP620. Each pair of disks are assembled as ...
1
vote
1answer
5k views

How to delete Refind entries

I'm not sure which area this post would be appropriate, but here goes. I have attempted several different Linux distributions on my Macbook Pro Retina (10.1) before settling on Ubuntu 13.04 and I have ...
17
votes
3answers
87k views

Boot drops to a (initramfs) prompts/busybox

I am running an HP pavilion dv6000 dual boot win7 and Ubuntu 12.04. (well, up until today). After a reboot, the boot process drops to the BusyBox shell and I end up at the prompt: BusyBox v1.18.5 ...
0
votes
1answer
18 views

Does someone mind taking a quick look at my boot-repair log? No operating system found

Symptoms: Previous Ubuntu install worked fine for a while (months?). One day the interface disappeared, leaving visible only folders that happened to be on the Desktop. After some troubleshooting ...
1
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3answers
4k views

Black screen when trying to install ubuntu 13.10

I am in need of some help. It has been 2 weeks since I bought my first ever windows laptop with the aim of replacing windows but I have been unsuccessful. The hardware is as follows : Asus 15' F550D ...
1
vote
2answers
61 views

Is the boot process longer when installed on a hard drive than from running on a USB stick?

I have a Windows 7 Sony Vaio laptop. I have created a bootable USB stick with Ubuntu 12.04 and have tried Ubuntu and like it. I would like to have it alongside Windows 7. When I boot from the USB, I ...
0
votes
1answer
33 views

installing ubuntu 14.04 from usb error

I have been trying to install Ubuntu 14.04 and 14.10 from a gorilla 32gb flash drive, it will install and on reboot if i take out the usb as the computer starts up i get a message telling me to insert ...
1
vote
2answers
293 views

What will happen if I bump the USB drive Ubuntu is running from?

I am considering creating a Live Ubuntu USB drive and running Ubuntu just from it. So, what bad things would happen if I was running Ubuntu and doing stuff and my flash drive got bumped out of ...
0
votes
2answers
134 views

How do I access my software updater if it doesn't display anywhere?

I'm really struggling to update my ubuntu os... I've got three different versions of it on my pc namely Blackbox, twm & Kde/ kubuntu. However I can't access my software updater from any of them ...
0
votes
0answers
25 views

Ubuntu suddenly restarts and is unable to mount /boot/efi anymore [duplicate]

My problem is the following: I have installed Ubuntu 14.10 in my asus laptop with pre-installed windows 8.1, everything went great and I managed to have grub doing dual boot and I used both OS's for ...
0
votes
0answers
27 views

Ubuntu installed alongside W8, W8 wont boot anymore, live usb isnt recognized

I think I might be screwed. I normally run preinstalled windows 8.1 on my Lenovo IdeaPad P400 touch, and I decided to try out dual booting Ubuntu 14.04, having never used Linux before. I edited the ...
0
votes
0answers
9 views

Unsecure boot on macbook pro

first i would like to mention i'm not using dualboot. I own a macbook pro 15", retina display with intel iris pro. model 11,2. Just booted ubuntu 15.04 from usb pen, and installed using full disk. ...
0
votes
2answers
30 views

dhcp is not working

I am using 14.04 and installed isc-dhcp-server in my ubuntu. here is my dhcp configuration. INTERFACES="eth0" allow booting; allow bootp; subnet 192.168.1.0 netmask 255.255.255.0 { range ...
2
votes
2answers
32 views

My other operating system has vanished even after installing boot reapir, I can't see my other operating system

After installing Lubuntu, I have never found a dual boot option, so I googled this problem and then installed boot repair, and processed it. There are 2 news one is good and the other is extremely ...