Questions tagged [boot]

Use this tag if you have trouble booting Ubuntu or you have questions about the bootup process.

8,111 questions with no upvoted or accepted answers
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11
votes
0answers
7k views

Failed to start Snappy Daemon

Tried restarting my computer and while it's booting Ubuntu 18.04, it gets hung up after: [FAILED] Failed to start Snappy daemon, See 'systemct1 status snapd.service' for details, New to Ubuntu so I'...
11
votes
6answers
15k views

How do you create a live persistent Ubuntu USB on a Mac that will boot to a Mac or PC?

Hello I have actually successfully created a live Ubuntu USB (12.04.3 64-bit on 8GB LiveUSB) using unetbootin, however it is not persistent and will not boot on a Mac. Or, if anyone has any ...
8
votes
1answer
3k views

Loop in “failed to start Snappy Daemon”

I'm not really experienced with Ubuntu and do not have a clue what to do in the current situation. My system currently has two boot states: Does not boot at all. Going to different console by ctrl+...
7
votes
0answers
3k views

Ubuntu not booting: timed out waiting for device

My laptop has Ubuntu OS. While trying to boot it is giving me the following error: 97.255199 systemd[1]: timed out waiting for device #...
6
votes
0answers
4k 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 ...
6
votes
1answer
466 views

Cairo-Dock crashed my Unity desktop, is this possible?

I'm still new to using Ubuntu and learning more and more each day. The other day I formatted my hard drive and wiped the Windows 8 partition (never use it) and re-installed my Ubuntu install to start ...
6
votes
1answer
11k views

Insmod error in grub: symbol not found:grub_realidt

I have a dual boot PC with Windows 7 and Ubuntu. I upgraded from 12.04 to 12.10 and then to 13.04 and since then I have not been able to boot because the PC goes into grub rescue with the error "File ...
6
votes
1answer
286 views

How can I refresh/reinstall/clear/set-to-default my bootup process?

I'm currently having a problem with my bootup process that is growing progressively worse as time goes on: While booting, it does a few minutes of hard-drive reading. During that, instead of showing ...
6
votes
4answers
666 views

Poor boot-screen after interrupted install

My install was interrupted because of a power cut. I recovered from it, using the command sudo apt-get dist-upgrade Now, I get a violet bootscreen like normal, but the progress bar is shown as 4 ...
6
votes
3answers
5k views

After upgrading from13.10 to 14.04 screen on a laptop doesn't work but

First my laptop CPU/GPU is Intel Celeron N2815 (Bay Trail) and I am in dual boot with windows 8. I have upgraded from ubuntu 13.10 to 14.04 today through update manager. And after upgrading and after ...
5
votes
0answers
5k views

Ubuntu 18.04 Boot hangs at PKCS#7 signature not signed with a trusted key

I had a working 16.04 working perfectly (but no bumblebee) and then upgraded to 18.04. Gnome was very laggy so I installed Unity and lightdm but it was still laggy. So I thought something was wrong ...
5
votes
0answers
619 views

RAID Drive on Dell Perc H310 RAID controller not recognized

So, I recently bought a Dell Perc H310 RAID controller to put in a Fujitsu Esprimo P700 E85+ Computer running Ubuntu Server 18.04.1 LTS. The Motherboard seems to have no UEFI, just a BIOS. From a ...
5
votes
0answers
3k views

Warning: Failed to connect to lvmetad. Falling back to device scanning

I have been running Ubuntu 17 for a few months now, yesterday my network manager seems to have failed so I figured I would reboot and see if that solved it. When I boot I get the error in the title. ...
5
votes
0answers
2k views

end Kernel panic - not syncing error when trying to install Ubuntu 18.04

I'm trying to install Ubuntu 18.04 on my system, but whenever I select Install Ubuntu it gives me the photo below. The computer currently has Ubuntu 16.04 on it, but that was to make sure the computer ...
5
votes
2answers
15k views

Remove windows boot manager and use grub instead

I have a dual boot with windows 10 and Ubuntu 14.04 when I boot my PC the windows boot manager shows up and I get the choice between Windows and Ubuntu. The problem is that when I choose Ubuntu, grub ...
5
votes
0answers
794 views

Can suddenly only boot with “nomodeset” (radeon, 16.04)

As of yesterday, I can only boot with the kernel option nomodeset. The only thing that happened before normal shutdown was an upgrade: Start-Date: 2016-11-26 00:09:51 Commandline: apt-get -y dist-...
5
votes
0answers
2k views

A start job for dev-mapper-cryptswap.device is never ending

I again have problems with my swap. I using an encrypted swapfile. It worked until i rebooted my PC. When im trying to boot it is just showing this: I disabled my swap in the recovery mode for now. ...
5
votes
0answers
128 views

Ubuntu can't boot with ACPI on - Samsung NP700Z4AH Notebook - Radeon HD 6750M

I've installed Ubuntu 16.04 in a Samsung Notebook but can't boot without disabling acpi. I appended acpi=off to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub and updated grub options with update-...
5
votes
1answer
202 views

Recover Ubuntu 14.04 Encrypted Install

I have an encrypted install (Full drive, not only home directory) of Ubuntu 14.04 on a 1TB SSD. I do know the passkey to unencrypt everything. It's just a matter of finding the files now. Here's what ...
5
votes
1answer
1k views

16.04 - Slow Kernel Boot (LVM issue)

After upgrading to Ubuntu 16.04 my system boot slow down consistently To analyze the cause I used this command. systemd-analyze plot > boot.xml google-chrome ./boot.xml I have found out ...
5
votes
1answer
760 views

Dell E6520 wont boot ubuntu unless plugged in on AC power

I've got a problem booting. Ubuntu 16.04 on my Dell E6520 laptop boots normally when plugged in. However, when booting on battery power it shuts down entirely. Sometimes it makes it as far as the ...
5
votes
0answers
3k views

16.04 Nvidia proprietary driver problems

On 16.04 xubuntu fresh install, I have an Nvidia Gtx 980 and an apple 30" 2560x1600 display, after installing proprietary nvidia drivers, I get two problems, the first, I can't log in during the ...
5
votes
1answer
574 views

Ubuntu wifi usually not working on boot, needs kernel module restart

After installing Ubuntu on my netbook, an F205TA, wifi seems to be not working correctly. Usually wifi is not working after boot, but starts working after one or more tries of: sudo modprobe -r ...
5
votes
2answers
12k views

target filesystem doesn't have requested /sbin/init. /bin/sh: 0 : Can't open splash - Ubuntu 15.04

I have an Ubuntu 15.04 machine. I installed docker in this machine. After installation I was trying to run the test image of docker which comes by default. But it did not ran. Then I tried to shutdown ...
5
votes
0answers
8k 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 continue... I went through this AskUbuntu Post about this problem but unable to ...
5
votes
1answer
3k views

Ubuntu server (VM) hangs after “Begin: Running /scripts/init-bottom … done”

My bootup hangs, as seen in the image below. (there has been an update. check the edit below) When I press escape, it tabs to this screen : The whole story : This VM ubuntu server is used for a ...
5
votes
4answers
8k views

tpm_tis Operation Timed out when booting 14.04 LTS

Since upgrading from 13.10 to 14.04 (with do-release-upgrade) my computer (Sony vgn-sz1vp) hangs for 4 minutes when booting. [ 1.015598] tpm_tis 00:06: 1.2 TPM (device-id 0xB, rev-id 16) [ 1....
5
votes
1answer
2k views

Distorted graphics on start up

So I am using dual monitors and every time I boot up my machine after entering my password to login, both screens show distorted graphics which eventually go away. I am on Ubuntu 12.10 the OS type is ...
4
votes
5answers
6k views

Black screen after rebooting following upgrade to 18.10

To upgrade from 18.04 to 18.10 I executed the following commands: "sudo apt-get dist-upgrade" and "sudo do-release-upgrade" Upgrade proceeded normally until the system reached the reboot phase. ...
4
votes
0answers
49 views

New to ubuntu, not sure what to call this but please help

I recently switched to Ubuntu and this is the second time I have faced this problem. The first time I reinstalled ubuntu and it was fine, because at the time I hardly had anything of value downloaded. ...
4
votes
2answers
175 views

XPS 15 9550 fails to suspend throughout a single boot on 17.10

I have a Dell XPS 15 9550 (using the latest BIOS 1.7.0) and am running Ubuntu 17.10 using Wayland (I also have Windows 10 dual booted). The issue is that sometimes (about half the time) when I boot ...
4
votes
1answer
660 views

Ubuntu 18.04 Emergency mode problem

When I tried to start my computer, it boots in emergency mode and shows some problem. I don't know about these problem. if I run 'exit' command that again brings back the emergency mode. This is shown ...
4
votes
0answers
3k views

Slow boot on 18.04 LTS

I am new to Ubuntu just installed it today, Ubuntu is taking to much time to boot like 2 minutes I found some command named systemd-analyze blame so I got output like this 15.267s dev-mapper-ubuntu\...
4
votes
1answer
2k views

Ubuntu Diskless 16.04.3 LTS (Xenial Xerus)

I am following this HowTo on setting up a diskless ubuntu client. I am using 2 virtualbox VMs one server and one client. I am trying to boot the client using pxe but I get a kernel panic error like ...
4
votes
0answers
1k views

How to enable early KMS on Ubuntu?

I have set /etc/default/grub to: GRUB_HIDDEN_TIMEOUT=0 GRUB_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_CMDLINE_LINUX_DEFAULT="" GRUB_CMDLINE_LINUX="" so that I get the full console text output ...
4
votes
2answers
2k views

Edit a bootable ISO in Ubuntu

I have been given an ISO, which is a WindowsPE image with some extra bits. I need to add some files to it. It still needs to be bootable. I tried isomaster, which works great, mostly, but doesn't ...
4
votes
0answers
78 views

Need help on slow Ubuntu 16.4 BootUp time

I am a newbie in Ubuntu and having trouble with my Ubuntu 16.4 booting up on SSD. The total time required to bootup is 3minutes and 7 seconds. I ran systemd-analyze blame and here's the result: Most ...
4
votes
0answers
619 views

Long boot time on Dell XPS 13 9350

I installed Xubuntu 17.04 on my Dell XPS 13 9350. It looks like everything works fine except one thing. The boot time is more than 100 seconds. Here is the dmesg output. Scroll it to line 914: [ 4....
4
votes
0answers
1k views

Failed to start LSB: OpenIPMI Driver init script

I'm using Ubuntu 16.04 Mate on a Dell Inspiron 5567. During boot, watching journalctl -b0 --system _COMM=systemd I see: mar 29 09:38:45 ale-Inspiron-5567 systemd[1]: Starting Light Display Manager.....
4
votes
1answer
2k views

How do I modify an Ubuntu ISO and keep it bootable?

How can I modify any of the Ubuntu images and make it boot from a USB device on a computer with UEFI? I'm looking to modify either the 16.04 desktop image, 16.04 server image or an alternate version ...
4
votes
0answers
2k views

Avoid Grub2 password protect on every boot?

I have set Grub2 password following this thread. It works fine but now it prompts for username and password every time I start or restart my computer. It's actually the first thing it does. Now, if ...
4
votes
0answers
2k views

Does anyone know how to install linux on the Samsung Galaxy TabPro S?

I would like to install Ubuntu on this Windows 10 2-in-1 device from Samsung. It has a UEFI BIOS system so it seems that it would be possible. I'm also new to UEFI BIOS, a simple description on how to ...
4
votes
1answer
2k views

Keyboard Randomly Stops Working (Lenovo IdeaPad Y700-15ISK)

My Keyboard suddenly stopped working while watching youtube videos. The video stopped and the keyboard did not work anymore. Nothing happened when I typed. Also other keys like adjusting volume, ...
4
votes
1answer
428 views

how can I make a portable ubuntu installation on a usb stick secure bootable?

I´ve fully installed ubuntu 15.10 16.04 on an USB stick (no chroot/permanent live install), and managed to have it booting to BIOS as well as to UEFI. How can I get secure boot working also on ...
4
votes
0answers
1k views

ata1, 2, 3 softreset failed

A couple of weeks ago, I installed ubuntu 16.04 for desktop (64-bit). It had been working flawlessly. After doing a couple of software updates, I get three errors on a restart/bootup: [2.484025] ata1:...
4
votes
0answers
216 views

nslcd segfaults at start on Ubuntu 14.04

During boot, nslcd segfaults with these errors in syslog: nslcd: segfault at 10 ip 00007f49c7798404 sp 00007f49c2f85060 error 4 nslcd: segfault at 10 ip 00007f49c7798404 sp 00007f49c2784060 error 4 ...
4
votes
0answers
3k views

Ubuntu 16.04 blue screen with cursor instead of login page

I was hibernating my laptop as usual from the terminal, but the OS hung and I forced a shutdown by holding down the power button. Now when I turn on my laptop and it loads into a blue screen with a ...
4
votes
0answers
7k views

How to Resolve this grub-efi-ia32 error in Asus T100 of 16.04?

I receive this message when installing Ubuntu 14.04 or 16.04 on Asus T100: The 'grub-efi-ia32' package failed to install into /target/. Without the GRUB boot loader, the installed system will not ...
4
votes
2answers
2k views

My laptop boots into BIOS after I installed Ubuntu 16.04

I recently bought a ASUS laptop and Windows 10 was pre-installed in it. So I installed Ubuntu and completely erased Windows 10. But after installing Ubuntu my laptop only boots into BIOS . I checked ...
4
votes
0answers
947 views

Ubuntu 16.04 – theme does not load at boot up

I 'm having a problem with Ubuntu 16.04, on Asus UX303LA. I currently use the Arc theme but sometimes, when I boot up, the theme does not load properly and the environment looks like the Ambience ...