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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my 12.04 version on DELL is crashing while booting…how do I resolve this please?

My system while booting is on a perpetual screen roll..and I keep tapping FN+ESC (Lock) and after sometime the system boots and my home screen appears...this was not the case earlier ...how do I ...
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0answers
17 views

Ubuntu live cd not detecting existing 15.04 partition

I have been using Ubuntu 15.04 since it was released. Today, I had to reinstall Windows 7 for some work requirements. The windows installation went well, and as always, grub had been erased. So now, I ...
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0answers
13 views

How to increase /boot partition size when installing Ubuntu 14.04 using the “use entire disk and set up encrypted LVM” option?

How to edit the size of the /boot partition when installing Ubuntu? Using the guided partitioning option "use the entire disk and set up encrypted LVM" results is a /boot partition which is only ...
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0answers
20 views

How do I install Ubuntu on a Lenovo Thinkpad?

I have Ubuntu on all of my computers that I use, so I am fairly clear on how to install it via USB, but this time has been different. I receieved a Lenovo Thinkpad tablet(no keyboard) from my school ...
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0answers
12 views

Booting USB with LiveCD GRUB

Under VMWare Player, I cannot boot directly Ubuntu 14 from an USB drive, so I would like to start with the LiveCD and boot from GRUB, issuing a custom command. Is that possible? What should be the ...
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0answers
12 views

GRUB wont recognize ubuntu

I just have installed ubuntu and than red hat linux enterprise after it and now my GRUB menu just shows Red Hat and when I insert Ubuntu disc and try to install it it says Ubuntu is already installed ...
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0answers
34 views

Uninstall ubuntu 14 using windows 7 recivery dsk

I am novice to ubuntu. I had dual boot windows 7 and ubuntu on separate partitions. Somehow I managed to corrupt my windows 7 and started to run system recovery using recovery disk. The recovery ...
1
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1answer
22 views

Booting from usb in ubuntu on macbook

Ive installed ubuntu solely on my macbook. However, I want to change to windows. I try to open the startup manager by pressing option(alt) on the macbook. However, no options appear. If osx is ...
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0answers
8 views

How to get to Recovery mode?

my Ubuntu shares the PC with windows 7 how would I get in to recovery mode for Ubuntu and my password is working for root ice tried reinstalling it but nothing Amy help?
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1answer
142 views

Dual boot Windows 10 Ubuntu14.04 problem

I'm sorry if this question has been asked before, but I couldn't find a solution that worked for me. I recently got a new laptop with Windows 8.1. I added an SSD and installed Windows 8.1 on that ...
3
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2answers
111 views

“Error: Invalid signature” when configuring dual boot Ubuntu 14.04 and Windows 10

After installing the Windows 10 upgrade on my laptop, it ruined the grub boot manager, and I could only boot in windows 10. I fixed the boot manager using a live cd with the boot-repair tool, but it ...
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0answers
37 views

fail to load - grub rescue>

I had dualboot with windows and linux, I tried to change size of windows C: volume and after reboot, it doesn't load ends with grub rescue shell. If I trun on UEFI boot in BIOS it ends with "No ...
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0answers
18 views

Fail to boot! Help please

I installed ubuntu, but it failed. Then it sendt me in to desktop to search for answers. When i tried to reboot, it wouldn't boot. I booted an the screen was there for 5 seconds. I can enter bios, ...
0
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1answer
31 views

How do I make my computer automatically boot into Windows instead of Ubuntu?

I have dual-OS's on my computer and when I turn it on it will automatically boot into Ubuntu. I am only able to get into Windows if I manually make a selection in what I think is grub (I am new to ...
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0answers
23 views

Help! (initramfs) failed boot

I cant boot to my ubuntu 15.04, after boot I get to initramfs. After looking for solutions online and here, I'm not sure what I can do to get back my OS and files... I introduced the command blkid ...
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0answers
15 views

How to optimize boot time

my machine it takes 2 minutes to boot(I know big problem). Although I have a similarity on the other thread it does not explain how to achieve that great performance. I had installed bootchart as ...
3
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4answers
3k views

Windows 10 upgrade lead into grub rescue

I was dual-booting Windows 7 and Linux Ubuntu on my desktop, and today is the day they gave out free Windows 10 upgrades. How exciting! I got the update, and it was installing, and I left to go take ...
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0answers
12 views

GRUB 2 dual boot freeze for a few seconds

Sorry for asking this question again, asked it here a long time ago but didn't get any answers. Since I setted up dual boot with Ubuntu and Windows 8 I have this "problem", grub menu shows up, if I ...
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2answers
31 views

Help! First time setup password broken! [duplicate]

I tried downloading Ubuntu 14.04 onto my old windows vista laptop. The installation went fine, but when i loaded it up for the first time I got to this screen: Ubuntu 14.04.2 LTS Linux tty1 Linux ...
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0answers
10 views

Multiboot and same /boot

I have a Win8 partition and some Linux on my laptop. I was wondering if it would be right to create a partition /boot and every time that I install a new linux overwrite it. Will this work or I will ...
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0answers
44 views

How can I boot from a USB device via grub shell or initramfs?

I recently got my Dell XPS 13 with Ubuntu 14.04 preinstalled. After some time I tried to update Ubuntu (big mistake) just to find out that it doesn't work out of the box and there are some issues to ...
1
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0answers
11 views

Is FSCK on boot disabled in 14.04.2?

I have a few different installations of 14.04 server, all 32 bit, mostly kept updated, so I feel confident to say that they're at 14.04.2. One server is on a clients site, and doesn't get updated as ...
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3answers
55 views

Can't boot after boot-repair

This morning starts with ubuntu updates installation, which unfortunately freezes at some point. I hard-rebooted my laptop and got grub> command-line. There I tried manual boot from each of two ...
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0answers
21 views

is it possible to run ubuntu kernel on fedora root filesystem?

My concern is theoretical possibility of running ubuntu kernel with fedora root filesystem (e.g. 3.2.58 ubuntu kernel on fedora 22). It's long story why I need this.. Also, I have no chance to make ...
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0answers
14 views

Mint won't install over ubuntu from unetbootin, startup disk creator, or terminal dd commands [on hold]

I'm new to linux but have been with Windoze since forever, so have a fair/average knowledge of general IT stuff. OK we have a Lenovo Thinkpad S10 149GB HDD 1.5GB RAM Last week I removed Windows XP ...
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0answers
24 views

Any possible way to void data on a DVD-R/+R? [closed]

Alright, so long-story short, I had to completely format both my hard drives. So, I need to reinstall my dual-boot of Windows 7 and Ubuntu. One problem. I lost my Windows 7 installation disk. ...
0
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1answer
36 views

Can I delete my most recent kernels

Yesterday I asked about problems I am having with my laptop computer Having problems booting my Lenovo laptop Basically the problem is that all recent kernels are failing, whereas old kernels still ...
0
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1answer
29 views

Grub,Ubuntu bootup [on hold]

I am using Ubuntu 11.04. One fine day something went wrong. Instead of loading Windows directly as set by me initially, it started showing me the grub command line. Once I type exit, it shows me ...
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0answers
7 views

Deleted Kernels from Full Disk Encrypted Ubuntu 14.04 with home directory encryption - help?

I have an Ubuntu 14.04 OS on which I enabled full-disk encryption and home directory encryption. In the process of updating Ubuntu my boot folder was too full to update so I ran a command I thought ...
0
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1answer
7 views

Intel RST (option rom, bios) raid and mdamd, how to?

I have 4 x 6TB hard drives which has been setup for RAID 10 in the BIOS (option rom: Intel RST (v12.7.0.1936)) on my P6T7 WS ASUS Motherboard with modded bios (BIOS) which works : lrwxrwxrwx 1 root ...
1
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2answers
62 views

Ubuntu Server Fails to boot from USB with External Drive

I recently installed Ubuntu Server 14.04 onto a 32GB pen drive. This is used as the main drive for an Intel NUC. -System- Intel Nuc (i3 D34010WYK) - Headless Sandisk USB3 micro pen drive (used ...
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0answers
9 views

Unable to acces BIOS setup menu

Firts, sorry for my english level, I'm french ! I would like to install in dual-boot windows 7 and Ubuntu, to do this I must acces to my BIOS at the startup of my computer but when I want to acces my ...
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0answers
9 views

how do I get quick boot on my hp pavilion g7 laptop?

Every suggestion I have tried leads to a blank wall. When directed to follow a procedure I do not find the same menus as described.
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0answers
16 views

Same Ubuntu on external SSD used on different machines : feasible, or not?

I happen to work with some new and old computers, all of them 64-bits, with at least 4 GB of RAM. So my question could remind this one : How can I install Ubuntu on an external hard drive so that I ...
0
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2answers
31 views

Problems running Ubuntu [closed]

When I try to boot in Ubuntu I get an error, to run it I try the Advanced options and I run it on a previous version. I guess it happened from something I installed and it crashed. How can I solve it? ...
2
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0answers
38 views

Ubuntu 15.04 Visual Glitches

I reinstalled Ubuntu 15.04 onto my computer, and I am receiving some strange graphical/visual glitches when I boot up. First off, there is some black terminal grub screen that comes up, tells me my ...
0
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2answers
39 views

Uninstall Kubuntu from a dual-boot with Ubuntu?

I have a multi-boot system with Windows 7, Ubuntu 15.04, and Kubuntu 15.04 installed in that order. At the moment, I think my system boots through Kubuntu's GRUB. My Windows is installed on an NTFS ...
1
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1answer
34 views

Why does Lubuntu 14.04 Kernel Panic on boot when Notebook is connected to AC Power, but not when on battery

since Ubuntu kernel 3.13.0-59 (or possibly even -58) Lubuntu kernel panics on Acer Travelmate B115-M when the device is connected to AC, but not when it's starts with battery only. Older kernels ...
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0answers
29 views

Noticable Faster Boot With Upstart, 15.04 [closed]

It takes about a minute to boot with systemd, but however, with upstart just 20, most of the time 10 seconds. I actually can just switch from systemd to upstart, but upstart is not the default init ...
1
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1answer
107 views

Can I create a bootable Windows 7 installation USB from within Ubuntu to boot a 2010 model iMac?

I have a 2010 model iMac on which I have installed Ubuntu 14.04 as the sole OS. I would like to install Windows 7 as a dual boot. I have freed up some space on the HDD. No matter what I try, I am ...
0
votes
1answer
38 views

Why does ubuntu 15.04 not detect my hard drive?

I have a windows 8.1 laptop. When I try to install Ubuntu via pen drive on the machine, the partition slider(Not the advanced partitioning tool) is showing the pen drive as the storage drive. I want ...
0
votes
3answers
36 views

How to install Ubuntu on Toshiba Satellite c850-19z

My computer is using UEFI and is running Windows 8. I've tried install Ubuntu before but I only got as far as putting it on a USB (using universal USB installer). But when I go to the boot manager on ...
0
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0answers
219 views

Windows 10 + Linux Mint 17.2 [closed]

I installed Windows 10 over an existing windows partition on my system. Now I can't boot into Linux :( I've tried booting from the Linux live CD and running boot-repair but I get the an error as shown ...
1
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1answer
24 views

Having problems booting my Lenovo laptop

I reported a bug on this issue and have had zero response http://bugs.launchpad.net/ubuntu/+source/grub2-signed/+bug/1474342 The problem is that I can no longer turn on my laptop and expect it to ...
0
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0answers
24 views

I think I've deleted a current kernel on Ubuntu 14.10 [closed]

I think I've deleted a current kernel on Ubuntu 14.10. I was having some issues with software updates, and I thought I needed to clear some space in /root. I was using some software that was ...
0
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0answers
10 views

Cannot install 14.04, cannot boot, no correct live environment

I cannot install Ubuntu 14.04.2 on my Acer aspire es1-531. I ran BootRepair and it gave me this paste. I added the nomodeset param to the grub2 to let the live or the installer run properly. I noticed ...
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0answers
30 views

Weird numbers and codes, help!

When I start my ubuntu computer, I see these options. "Ubuntu", "Ubuntu more settings", Memory test (memtest86+)", And Memory test (memtest86+, serial console 115200". When I press enter on the ...
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1answer
25 views

Clean install of ubuntu 14.04.2 LTS on PC. Will not boot & bios shows no HDD only DVD?

I am new to this. I have just bought a new 1TB HDD and it is the only drive in my Desktop PC. I downloaded Ubuntu 14.04.2 LTE and copied it to DVD and did a clean installation. After the system ...
0
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2answers
25 views

Mounting encrypted LUKS partition from Live CD

Error to begin with, can't boot I had to do a hard reboot of my computer, and when booting up it (initramfs I think) gave an error: mount: mounting /dev/mapper/ubuntu--vg-root on /root failed: ...
0
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1answer
30 views

Wanting to replace pre-installed Windows 8.1 on my Lenovo laptop with Ubuntu. Needed help on which partitions to remove and which to keep

I have the following partitions right now on my laptop: 1000 MB (Healthy OEM Partition) 260 MB (Healthy EFI System Partition) 1000 MB (Healthy OEM Partition) 462.14 GB (Healthy Boot, Primary ...