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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How do I select which OS to boot with no keyboard on a laptop? Can I adjust GRUB loader settings from the booted Ubuntu OS? [duplicate]

Well, the title says it all, basically. I am dual booting Windows 7 and Ubuntu 13.04 on my laptop, that has no keyboard. I am wondering how I would go about switching to Windows 7 (Ubuntu is the first ...
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3answers
2k views

PC won't boot anything but Ubuntu

Well, I decided to give Ubuntu 12.10 a try but really isn't for me, mostly because I'm a gamer at heart and the game selection on Linux is very limited. :P I want to revert back to Windows 7 but I ...
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2answers
4k views

/dev/mapper/vg00-root does not exist

Since I upgrade from 11.10 to 12.04 server. I obtain the following error at boot. /dev/mapper/vg00-root does not exist I must use the recovery mode to manually do "vgchange -ay" to active my VG00. ...
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3answers
3k views

Ubuntu way to run sysctl -p on each boot?

I made some changes to sysctl.conf but now need to run sysctl -p on each boot. I can always create an init script to have it run automatically on boot, but I was wondering if there was an Ubuntu / ...
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1answer
540 views

Don't wait for user input on errors while booting

I'm running 11.04 server, headless, and at a certain point it didn't boot anymore: it just stopped. It seems like I made a mistake with some of the disks, the fstab or the raid config, anycase one of ...
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1answer
450 views

My system won't boot after install of 12.10

I just finished installing 12.10 on my desktop. I chose to erase the current data on the drive and start fresh. When my system attempts to boot now, it doesn't see an available operating system at all....
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3answers
192 views

Live CD works great, but installed drops to INITRAMFS, kubuntu 16.04 LTS, XFCE

good afternoon, i recently swapped from Mint to Kubuntu with XFCE. the Live CD (actually a thumb drive) worked fine, so i went forward with the installation. on boot, i get dropped to initramfs, ...
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1answer
10k views

Can't boot --> PXE-M0F: Exiting Intel PXE ROM [closed]

Question: I recently installed Xen (paravirtualization) on my Ubuntu 12.04 machine. Ubuntu 12.04 worked excellently before, but afterwards, the trouble started. The laptop crashed every time I ...
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1answer
825 views

Initramfs + Luks - only one password prompt

What I want to achieve: Being asked for a password, only once during boot time; The other (non-root) partitions to use the keyfile inside the /root/ directory. What I have achieved so far: (A) ...
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2answers
3k views

Can not boot 12.04LTS from USB HDD [duplicate]

I have installed Ubuntu 12.04LTS on an external USB HDD, and put the bootloader onto the same drive. This is so I can interrupt the boot sequence on the PC and force the system to boot from the ...
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2answers
540 views

Whenever I boot I get Visual Artifacts, why? Is there a way to fix it?

I have a desktop with a old Nvidia 6150SE Nforce 430 and I can't boot up every time I try the system shows the desktop wallpaper and a cursor and then freezes and shows me a colorful pattern across ...
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1answer
311 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 ...
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1answer
252 views

Lubuntu 14.04 - No grub screen. Need to Ctrl Alt Del to reach grub

Turning the machine on or rebooting leads to a black screen right after the brand logo (Acer) splash screen. Nothing happens until I hit Ctrl+Alt+Del, which kind of reboots but shows the grub menu. At ...
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1answer
2k views

Is there easy and safe way to resize /boot

My /boot is full. Is there an easy and safe way to resize it? I saw a discussion which said that /boot partition is not required. A /boot directory will be fine. However, I don't think I can have /...
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2answers
2k views

How to get disable nVidia Graphics Card (which has recently expired) so that I can boot Desktop?

I have a 3-4 years old laptop (Compaq V3000), which had Win Vista with Ubuntu 10.10 in dual boot configuration. The graphics card inside is an old Nvidia GeForce Go 7200. One fine day, my graphics ...
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1answer
103 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 ...
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1answer
3k views

Ubuntu freezes running the first time [duplicate]

Possible Duplicate: What should I do when Ubuntu freezes? 12.04 Freezes on first run after install, loading screen says 'Preparing to run Ubuntu for the first time...' — stuck on 2nd dot after ...
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1answer
6k views

Windows Boot Partition was deleted after re installing Ubuntu 13.10 and can not boot into Windows

A while ago I tried installing nVidia drivers for Ubuntu and ended up completely messing up my system so I left a broken Ubuntu on my SSD and used the Windows 8 installation on my normal hard drive ...
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2answers
8k views

Unable to install Ubuntu alongside Windows 10 due to UEFI firmware error

I have recently bought a new ASUS laptop which has Windows 10. Now I need to install Ubuntu 15.04 alongside Windows. I have done this before with my other laptops. However, now when i try to install ...
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1answer
76 views

Ubuntu 14.04 installation attempt destroys Windows 10 [closed]

A few hours ago I was trying to install Ubuntu 14.04 along side Windows on a UEFI Laptop by following the steps given here without any success. I'm pretty sure I would have succeeded had I followed ...
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1answer
2k views

I can't install Ubuntu 13.04 on a new computer

I managed to install Ubuntu 13.04 by disabling "Virtualization Technology" in my BIOS (which I believe let's me operate several OS's) and changing in GRUB2 quiet splash to quiet splash nomodeset. ...
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1answer
8k views

How do I get into recovery mode on ubuntu 14.04 if the option not showing

I just boot up my laptop then run the sudo apt-get update command, but there's an error says: [username] is not in the sudoers file. This incident will be reported. so I search the google ...
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0answers
319 views

root file system mounts as read only after some time

My root (/) file system get remounted as read only after the system has been up for some time. This seems to vary from 3 hours to 48 hours. This system is running Ubuntu desktop 14.04. Its primary ...
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1answer
419 views

How do I get rid of the drive mount confirmation question for sshFS on boot?

With help from this site, I was able to set up an SSHFS connection between two computers on my LAN so that one auto mounts on the other at boot time. Everything works, but there is this annoying ...
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2answers
393 views

How to create bootable ISO from an installed OS?

Say I have two systems A and B. I have installed Ubuntu 12.04 on system A and need same set of settings in system B, for which I am thinking to make a bootable iso from System A(creating as a backup)....
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1answer
297 views

Bootchart statistics

What meaning do the following bootchart statistics have? CPU (user + sys) - show percentage of usage all cores of my CPU? I/O(wait) something wait input-output? What does it mean? Disk throughput ...
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1answer
8k views

Windows 8.1 is Completely Blocking Ubuntu [duplicate]

A few days ago, I upgraded my Windows 8 Lenovo U410 ideapad to Windows 8.1, and it proved to be a terrible mistake. It seems like the only visible change that it has made is adding the start button. ...
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2answers
4k views

Ubuntu boots in read-only filesystem after upgrade!

I got a serious problem here: I recently upgraded to the Latest Version of Ubuntu. Now, I boot to my Ubuntu Partition, and I get a Low-Graphics error! I boot to a Recovery-Mode to see what the ...
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3answers
368 views

Significant increase in booting time after update in Ubuntu 14.04

Did anyone else notice a sudden increase in booting time after a recent update (maybe, 2 or 3 weeks ago) in Ubuntu 14.04. After showing the Ubuntu logo, there is a black screen that takes a lot of ...
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2answers
2k views

Ubuntu 12.04 questionable RAM usage, mouse lags, windows fade slowly and programs hang…after a few hours things return to normal

I am running 12.04 on a Core 2 Duo T8100 at 2.10ghz with Intel GM965/GL960 integrated mobile graphics with shared memory. I have 3gigs of ram but it normally stays below 1 gig. Super Key hangs and ...
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0answers
715 views

Has the bootoption “acpi=noirq” any disadvantages in permanent use? Help me with debugging acpi pls

I am using Ubuntu for a while now and I have an average knowledge of it, I thought so ;), but have a problem I cant solve alone. I did a lot of research, but now I cant find an other solution and I ...
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1answer
2k 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 ...
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1answer
756 views

Skip rc.local while booting

I'm running ubuntu-10.04.2-server, accidentally somebody put command "reboot" on rc.local, so when i started ubuntu it always restarting, can i force ubuntu to not load rc.local? thank you
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1answer
579 views

Kubuntu 15.10 won't boot from live USB on my Samsung rf-511 laptop

I want to try Kubuntu 15.10 and that is why I have created a live USB of the kubuntu 15.10 iso through UNetBootin. I have used the same pen drive to install my present OS (Lubuntu 15.10) and had live ...
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2answers
2k views

Unity will not boot 12.04

I switched to GDM and restarted. No problem. Waited several days and my system is working well, except for a minor bug in Gnome 3.4. I install Ubuntu Tweak and make a few tweaks. Reboot and all is ...
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1answer
85 views

ubuntu installation using preseed

I'm trying to do the unattended ubuntu installation using preseed.cfg. I am following the instruction as in http://searchitchannel.techtarget.com/feature/Performing-an-automated-Ubuntu-install-using-...
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2answers
3k views

init not found try passing init=bootargs

I tried to install ubuntu in my sony CS17G notebook. After selecting the option "Install ubuntu" from the boot menu, I am always getting the error.. init not found. try passing init=bootargs. (...
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2answers
422 views

How to bring up a network interface only if it is physically present in Ubuntu 14.04?

This is a follow-up on my old question: What would be the best way to make kernel bring a network interface up only if it is physically plugged in? So, if it doesn't exist, just move on with ...
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1answer
1k views

Ubuntu not booting properly

I just bought an Asus EeePC with Ubuntu 12.04 installed on it. After turning it on and performing the updates it didn't boot properly and showed a screen saying it was working on low graphics mode, ...
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0answers
42 views

Can not boot into my windows

I have two drives. One drive has windows 7 and the other has XP. I created an ubuntu live USB-stick with rufus to see if my computer can handle, because it is very old. Specs: Pentium 4 2.8 GHz 2 GB ...
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1answer
559 views

Creating ubuntu 14.04 boot into external hard drive

I've tried to use rufus software to create Ubuntu 14.04 boot into external hard drive but rufus cannot recognize external hard drive as USB flash drives. Is there a proper way or software to create ...
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0answers
249 views

Grub does not start anymore after removing a btrfs partition

I'm using Ubuntu 14.10. Consider the following setup: ubuntu@ubuntu:~$ sudo blkid /dev/sdb1: UUID="0dde146f-ebdc-472d-83a2-48104e23cb8f" TYPE="swap" PARTUUID="00061e41-01" /dev/sdb5: UUID="ffead33a-...
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1answer
494 views

Bootable ISO Disk doesn't work on Acer 1362 laptop

I have a 9-y/o Acer 1362LCi laptop that I want to convert to a Linux machine,since it is no longer useful as a windows machine. i made an iso dvd that is bootable from a win7 desktop, but it hangs ...
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1answer
4k views

Have grub2 boot 32 and 64 bit Ubuntu

I just installed a system like this: ubuntu@ubuntu:~$ ls -l /dev/disk/by-label/ total 0 lrwxrwxrwx 1 root root 10 2012-01-22 18:49 Boot -> ../../sda1 lrwxrwxrwx 1 root root 10 2012-01-22 18:49 ...
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2answers
280 views

Dual boot windows 8.1 stuck

I have windows 8.1 and Ubuntu 14.04 in my system. I have used boot repair tool in Ubuntu to fix the grub. Now the boot menu is showing( Before it was not showing). I am also able to boot to Ubuntu. ...
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1answer
252 views

Ubuntu 14.10 boot takes ESC to give encryption passphrase prompt

Need help getting a friend's Acer Aspire 5560 (2048 MB, 500 GB, Radeon graphics using 512 MB of board RAM) up and running. Crunchbang got corrupted (or hard drive had a nasty event), used ...
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453 views

Boot-repair (Or ubuntu grub) somehow stopped bios setup

I am using Ubuntu 14.04 since it launched. All of functioning of bios and grub where running properly. One day I used boot-repair for some reason. After few days I noticed that Bios set-up doesn’t ...
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1answer
156 views

Crash when booting system error no wubildr

erorr no wubildr then boot with red pix-elated screen after i log in it freezes and lines of code pop up. I think it may be a hex dump. what do I do? I have a fx 4100 and a radeon 6670 graphics card.
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3answers
14k views

My Ubuntu 12.10 does not startup to GUI

When I switch on my Laptop and chose Ubuntu to start it up. I am stuck with console only asking me for my username then for my password. I do not know what had happened to my Ubuntu, last thing I ...
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1answer
152 views

Problem with Installing Ubuntu 15.10 on MSI

I have MSI ge60 2pe. I am facing big problem,whenever I try to boot USB it is obviously showing me options such as "try without installation" etc. However whenever I choose to install or try without ...