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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Bootup Error: ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknow-block(0,0)

Previously, I have execute the following 3 commands. sudo apt-get update sudo apt-get upgrade sudo apt-get dist-upgrade However, I cannot bootup my laptop after the restart. Whatever I try to ...
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0answers
25 views

Kernel panic - not syncing: fatal exception in interrupt

There are a lot of posts on this, but I haven't found an answer yet. This happens to me very occasionally, I'd say every two months or so, on a machine that boots automatically ~ 2x/day (it's a ...
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0answers
20 views

Ok…so i recently put peppermint 7 on my pc [closed]

Everything was working as it should. I've been using it now for over a month. I turned it on today to find that it couldn't boot. It says "failure reading sector 0x802 on hd0" this is a pretty new ...
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0answers
25 views

Installation Problem 16.04LTS [duplicate]

So, I went through the installation of 16.04LTS after having erased and overwritten 14.04LTS. It went through the entire installation, restarted and ejected the ISO DVD. After a few minutes of disk ...
1
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0answers
46 views

Ubuntu 16. Startup finished in 1min 32.747s (kernel)

From plot.html that I created using systemd-analyze plot > plot.html, here is I got: Startup finished in 1min 32.747s (kernel) + 18.861s (userspace) = 1min 51.609s Ubuntu 16.04 LTS MyName (Linux 4.4....
1
vote
2answers
22 views

Emergency mode after fail mounting windows partition

It happened after I formatted (from ubuntu) the windows partition, using file system ntfs. Now only boots in emergency mode. The log throws two errors: [drm:intel_set_pch_fifo_underrun_reporting [...
1
vote
1answer
108 views

Dual Boot Windows 7 and Ubuntu 14.04 [duplicate]

I had a dual boot system with Ubuntu and Windows 7 ultimate. Windows 7 got corrupted so I had to reinstall Windows 7. When I had the system dual booting when Windows wasn't corrupted, it used to ask ...
0
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1answer
32 views

Stuck on BIOS splash screen (Dell manufacturer logo) [on hold]

My computer always gets stuck during boot at this screen: Is this a problem of Ubuntu or the computer itself and how can I fix it?
3
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1answer
22 views

How to reorder operating systems in GRUB?

How can I rearrange the operating systems installed on my computer in GRUB? I have Windows 10, Ubuntu 14.04 LTS, and Kubuntu 15.10. It prioritizes Kubuntu, with Ubuntu second, and Windows last. How ...
0
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0answers
21 views

Failure when booting Ubuntu Live USB on Windows 7

When I try to boot an Ubuntu Live USB on my new computer (with Windows 7), it will allow me to select the language, but then it freezes. Then when I forcibly shut it down and restart, my computer ...
0
votes
1answer
6 views

Q: Raid1 not booting after new hard drive installed

On my Ubuntu server I had a disk failure. The new hard drive was quickly installed by the hoster's technicians. Then I followed the instructions on their page to integrate the new disk into the raid. ...
3
votes
1answer
24 views

Unable to log into my desktop with correct password

I'm unable to log into my desktop for ubuntu. When I'm in my BIOS, it says Ubuntu is installed on my 500 GB SSD when it's installed on my 250 GB SSD. When I do fdisk -l it shows that my partitions ...
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2answers
730 views

Restore EFI from Windows after Windows 10 upgade broke boot list?

I updated to Windows 10 late July, and it deleted all of the boot entries on my computer. I was able to find the correct Windows boot efi file, and added the option to boot, but I could not find the ...
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0answers
19 views

How to install Ubuntu on computer with 2 SATA SSD's Raid0

I'm trying to install Ubuntu on my computer that has 2 SATA SSDs linked by Raid0. I can't install it regularly (i.e. 'Install Ubuntu' while booting from the ISO) becuase the installer freezes or ...
2
votes
0answers
68 views

debconf uefi disabling almost breaks system

I am using Lubuntu 14.04 and use the graphical update manager to keep my system up to date. Today I was installing a bunch of updates, when a window appeard that told me, that a tool named "debconf" ...
1
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0answers
98 views

Slow boot after update, XHCI_HCD problems

I updated to 16.04 the other day and my boot time has gotten really slow. I am dual booting on a Macbook Pro using rEFInd. Judging from the dmesg output I think this is a problem with the xhci_hcd ...
0
votes
1answer
29 views

Problems UEFI booting after software update

I have an Acer Extensa 2511 where I installed Ubuntu MATE 16.04 (Windows is not installed) Today, after a software update (which required a reboot), the reboot failed. I ran boot-repair. After that, ...
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0answers
13 views

Install grub for different OS on different HDD

I have a new system with me and two HDDs from my previous system. Simply put, I have sda with Windows 7 & Ubuntu 14.04 LTS and sdb for additional storage. I upgraded Ubuntu to 16.04 LTS and wanted ...
1
vote
1answer
4k views

Ubuntu install deleted Windows 8 partition; how to recover it on ubuntu

I tried to install ubuntu to get dual OS but incidentally delete one of the windows' partition in the process...... I can't boot windows or even use the recuse tool to recovery it... I've backed up ...
-1
votes
0answers
12 views

LMDE 2 boots to black screen but if I choose 'systemd' it loads normal [closed]

I made the unfortunate mistake of copying and pasting some stuff and now LMDE boots to a black screen. However, if I interrupt the boot process and choose the option with (systemd) at the end, it ...
0
votes
3answers
5k views

How do I install (to dual-boot) Ubuntu on this UEFI MSI GE40 2OC-218USK laptop?

I have a GE40 2OC-218USK laptop. I am trying to repartition the hard drive to have it dual boot Ubuntu and Windows 8. Nothing but endless problems. I've been progressively turning more and more ...
-1
votes
1answer
37 views

I can't boot Ubuntu from DVD [closed]

I can not boot ubuntu DVD, I skip the "OUT OF RANGE" error there any solution for this? I can install ubuntu from W10?
1
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1answer
89 views

After installing Ubuntu, nothing happens

I just installed Ubuntu, and it asked for me to restart the computer, so I did it(Yes, I did put it to boot on HD). After the computer turns on, nothing happens. It's just a black screen, with "_" ...
0
votes
1answer
33 views

I cannot boot into windows 7 after installing ubuntu. BIOS-Boot partition error [duplicate]

I've been scratching my head for hours, and am completely lost. I have ubuntu installed on a separate drive, and 5 other drives I use with windows 7. I ran Boot-Repair with "Recommended Repair" and ...
1
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0answers
25 views

Slow Boot 14.04

I updated to 4.3.0-040300 kernel to get my wifi working but now booting takes much much longer. I'm using a lenovo thinkpad yoga 460, booting from an external hardrive via usb port and I've deleted ...
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votes
0answers
22 views

Restore Windows 7 MBR with GRUB2 [closed]

On my computer i had dual boot Windows 7 (on HDD 1) and Linux Mint (on SSD). I bought a new computer with another Windows 7 preinstalled on a new harddrive (HDD 2). Then i added my linux disk (SSD) ...
0
votes
1answer
91 views

Can't login after update 14.04 Secure Boot

After applying an update I'm not able to login in graphics mode. The last update ask me about Secure Boot. Now I can only login in command line mode. In graphics mode it keeps me asking the password ...
20
votes
8answers
62k views

Create USB installer to install Ubuntu from the command line?

I'm trying to create a bootable USB image to install Ubuntu on a new computer. I have done this before following the "create USB drive" instructions for Ubuntu desktop, but I don't have an Ubuntu ...
0
votes
0answers
10 views

Failed to boot after installing Tuxonice

I wanted to enable hibernate mode on ubuntu 16.04 LTS on my Lenovo laptop and i followed this > http://askubuntu.com/a/763516/562389. And i also changed ResultActive=no to ResultActive=yes for [...
1
vote
3answers
5k 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
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0answers
7 views

Service with no limit at boot runs for too long and does not stop

A service at startup has been going on for 20 minutes (and counting) but I cannot stop it at boot, is there a way to stop it? ( it is LXC Network Bridge Setup) EDIT: OpenBSD Secure Shell server also ...
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0answers
26 views

error message at start ubuntu 12.04

I am getting the below message in a long queue and flashing when switching on my laptop. It actually lets me in after a very long time (even 30 mins or more). After getting in, the internet ...
0
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0answers
10 views

Tried to install KDE desktop but on restarting not able to boot [duplicate]

i tried to install KDE desktop.. after the installation was completed and i restarted a dialog box saying the system is starting in low graphics mode.. and thereafter the syste is stuck..
2
votes
2answers
12k views

installing ubuntu with full disk encryption including encrpyted boot on i-USB Pendrive ii-A regular HDD

Hi how to install Ubuntu 12.04+ with full disk encryption including encrypted boot partition : a- to a USB drive ie. 16GB or 32GB b- to a HDD
0
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0answers
7 views

Latest ubuntu install: “Reloc offset is out of the segment”

I am trying to install the latest release of ubuntu, that is 16.04, on a recent machine using UEFI. I am using a USB stick, which worked properly on another computer of mine (so I know the image was ...
2
votes
2answers
2k views

How to recover ubuntu back to normal after interrupting the update?

Today morning Ubuntu prompt me to update my ubuntu from 15.04 to 15.10, I started the upgrade process, but the process hangs with the message (something like) halt because of too many errors, I had to ...
2
votes
4answers
3k views

PXE Boot Recent Ubuntu Live CDs

I've been having trouble with recent Ubuntu live CDs trying to boot off of them via PXE. My ultimate goal is to rebuild an old Ubuntu 9.04 diskless box using the newer Ubuntu 12.04.4 build. When ...
0
votes
2answers
1k views

Using update-alternatives to change plymouth theme only affects shutdown animation, startup is left unchanged

In Ubuntu 14.04, I was able to change my Plymouth Theme simply by going to /lib/plymouth/themes and copy my theme in there. Then, by simply typing sudo update-alternatives --config default.plymouth (...
27
votes
6answers
76k views

Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

Upon trying to upgrade from 10.10 to 11.04 all seemed to go well until the restart. This error message is what comes up: Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) ...
0
votes
0answers
30 views

How to repair the system after an accidental deletion of the kernels? [closed]

(I'm newbie). So basically, a window kept pop-in out saying that the volume "boot" has only 0 bytes disk space remaining. So I searched for a solution and I found one saying that I should delete the ...
0
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0answers
67 views

ubuntu 16.04 won't shutdown : Reached target Shutdown[ok] also ubuntu 14.04 won't shut down : killing all procces [fail]

I had ubuntu 14.04 (DELL laptop INSPIRON N-4110 ) shutdown and reboot worked correctly and without any problem but after a long time I wasn't able to reboot or shutdown my machine. and that was the ...
0
votes
1answer
12 views

Is there a command to make Ubuntu's boot menu look like Fedora's?

Basically to show all available kernel versions in the main menu, without the need to drill down to the Advanced Options.
1
vote
1answer
556 views

Installing Ubuntu on a Chromebook without a dual-boot

I am looking at getting a Chromebook but I don't like limitations on my computer systems and looking to get back into a heavier Linux work load. Has anyone install a complete version of Ubuntu on a ...
2
votes
0answers
64 views

hard drive doesn't appear as device

I have an Acer Aspire R11 combination Laptop / Tablet. It has a 32 Gb harddrive with a few partitions. Windows 8.1 is installed on it. I recently had an issue with partitioning. I decided to use an ...
0
votes
1answer
25 views

Can't boot into ubuntu server; target filesystem doesn't have requested /sbin/init

I haven't used my ubuntu server for a few weeks now but I haven't done anything with it since I last successfully used it. I use it as mostly a media server. After trying to access it from my windows ...
0
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0answers
16 views

RUN fsck MANUALLY [duplicate]

I dual boot between Ubuntu and Windows 7.I started upgrade from 15.04 to 15.10 yesterday.But i interrupted it as it took long time.when i started Ubuntu it seems unstable and displayed a dialogue ...
0
votes
1answer
338 views

How to make bootable flash drive on kubuntu

So what program or command should I use to create bootable flash drive? I used UnetBootin, disk creator and I think they are not working as they should . When I use option for boot with flash drive ...
5
votes
2answers
15k views

My Ubuntu is running fsck on every bootup

A few weeks ago I've disabled plymouth because it started mixing up the installed themes... But that's not my problem atm. On every bootup it's the same: Begin: Loading essential drivers ... done. ...
0
votes
0answers
56 views

Installing 16.04 on Lenovo Yoga 900 with nvme drive

I am attempting to install 16.04 on a new Lenovo Yoga 900. This type has an nvme drive and is set up by the BIOS as RAID, not AHCI (cannot be changed). I see multiple comments on the various forums ...
0
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0answers
357 views

Can't Install Ubuntu 16.04 NVME Driver

I can't seem to install Ubuntu on my yoga 900. The device has a 512 gb NVME Samsung hard drive in it. This drive is seen by the BIOS but not by the Ubuntu installer. There is no option to change the ...