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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1answer
12 views

Why my Ubuntu block wlan & how to unblock?

Everytime I boot Ubuntu, my wifi lan is Soft-blocked. ( I did rfkill list, rfkill unblock wlan to verify the case. In addition I note that it is blocked some seconds after boot is finished). how can ...
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0answers
8 views

Ubuntu 15.04 Installation Problem, HP Envy 15

This is my first system with UEFI.... Laptop name: HP Envy 15 Notebook PC (with Touchscreen).... OS installed: Windows 10, self installed .... Processor: Intel i7-5500U @ 2.40GHz (4 CPUs) .... Ram: 8 ...
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0answers
6 views

Cancel 'rfkill wlan' at boot?

When I boot, my Wifi is always soft-blocked. In terminal, sudo rfkill list does: 0:hcio: Wireless LAN Soft blocked:yes Hard blocked:no How can I definetly unblock Wireless LAN ?
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9 views

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

after a reboot I get the following error message: The grub menu: I can boot the system by selecting previous version->... 3.13.0.64-generic (/dev/sda1) in the grub. Here an image of the boot ...
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0answers
7 views

After upgrading of a kernel from the **3.19.0-15** to the **3.19.0-26** it shows me color lines on boot

CPU: Intel Core i7-4770. GPU: NVIDIA Corporation GK104 [GeForce GTX 760] (rev a1). Ubuntu 15.04 with LVM on LUKS: sda 8:0 0 111,8G 0 disk ├─sda1 8:1 ...
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0answers
4 views

Use systemd to “mount” wlan0 at boot

Context (if needed) : at boot, the service "myservice" is launched. It manages to "up" the wlan0 interface. But it does not exist yet at boot. ifconfig, after boot, lists only eth0 and lo. If ...
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0answers
8 views

PXE booting a syslinux Kernel

I got a small Problem with my Ubuntu 14.04.3 LTS Server. At first i've installed this packages on my server : dhcp3-server , tftpd-hpa , nfs-kernel-server and syslinux. Everything runs fine and i've ...
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1answer
12 views

Boot, How to run my service **after** Network Manager?

I have made a service - which changes settings of network interfaces -. I want to start it at boot. Issue: even if I set it 99 priority, it works only a few seconds. It seems its interfaces config ...
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2answers
20 views

Ubuntu 15.04 Server - How to stop X from starting at boot

I'm new to Ubuntu. Just setup a system with 15.04 Server. I installed X because I sometimes want to use it but it's automatically starting at boot. How do I disable this? I still want startx to work ...
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0answers
9 views

boot - How to fix ata errors on startup

I created a bootable usb of ubuntu-14.10-desktop-amd64 using pendrivelinux. I changed the "quiet splash" to "nomodeset" to see the full logs. Then I encountered something like this.. [ 45.865200] ...
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5 views

Kernel panic attempted to kill initexitcode=00000009 Dell inspiron 3000 series with ubuntu kernel 3.13.0-62-generic

I have a Dell Inspiron 14 3000 series with Ubuntu. I keep getting a kernel panic failure to sync attempted to kill init. I did a factory reset and tried a different kernel. currently it is ...
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0answers
4 views

boots to Busy Box (initramfs) 14.04

I cannot get out of this screen. I need to get into this computer. Can someone walk me through the commands to get it back?
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0answers
8 views

linux-image-3.19.-.26-generic broken

For reference, I'm on Xubuntu Vivid, installed on a ASUS E451LD (aka a PL451LD). It has an Intel/Nvidia Optimus GPU setup. If I boot off a 3.19.0-26.28 kernel, it sticks on a blank screen or on the ...
1
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0answers
22 views

How do I boot back to Ubuntu? (Booting from Windows to Ubuntu)

I installed Ubuntu some days ago, running alongside with Windows 10 (dual booting, I guess it's called). I booted Ubuntu from a USB flash drive, and after pressing F12 at PC startup (Windows Booting ...
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0answers
7 views

Improve boot time [network-online.target]

I want to improve my boot time, if possible $ systemd-analyze critical-chain The time after the unit is active or started is printed after the "@" character. The time the unit takes to start is ...
0
votes
1answer
14 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
5 views

Black screen and reset in Ubuntu after logging in

I have a problem logging in Ubuntu. Problems started after forcing shutting down Ubuntu, from power button, while it was updating. Next restart, it displays the users I have in Ubuntu, but when I ...
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2answers
14 views

How to handle GRUB configuration on a multi booted system?

I just finished changing the boot order for GRUB2. I have three operating systems installed on the computer. I have Windows 8.1, Ubuntu Linux 15.04 and Mint Linux 17.2. I followed Marve's answer here: ...
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0answers
15 views

Should I dual boot with ubuntu 15.04 or ubuntu 14.04? And how do I actually dual boot with these?

Almost all the guides I can find are for earlier versions of ubuntu or do not apply to my situation. It would be greatly appreciated if someone could explain whether I should dual boot ubuntu 14.04 or ...
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0answers
3 views

Busybox initrmf disk by UUID not found ubuntu 14.04

I am aware there are few more questions about this problem, but this is slightly different. I am running Ubuntu 14.04 and windows 8.1 on a dual boot Samsung laptop. This setup has been working ...
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2answers
17 views

Impossible to log in after changing $PATH

I'm using Ubuntu 14.04. While updating TeXLive I changed the PATH in an obviously wrong way. Now I can't log in: when I enter the correct password it comes back to the log in page. I connected on ...
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0answers
22 views

deleted linux mint from win 8.1 dual boot and cannot reinstall linux [on hold]

Until yesterday i had a dual boot of windows 8.1 with linux mint 17.2 Rafaella Cinnamon x64bit.Via the terminal i deleted something that i shouldn't and then when i rebooted the pc ,linux stuck at the ...
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0answers
9 views

Ubuntu does not appear in Grub, Boot Repair goes on indefinitely

I installed Ubuntu 12.04 (32 bit) in my desktop alongside Windows 7 using unetbootin by making separate partitions for / and /home. Installation went fine, but after restarting the Grub menu showed ...
0
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1answer
14 views

Ubuntu install erase disk fails

I am trying to install Ubuntu 15.04 on my computer but it fails. I used Win 8.1 before on that SSD. My pc starts the installer in UEFI mode. The installer says that there is no other OS on my pc and ...
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0answers
6 views

Stuck on the purple loading screen

My system doesn't boot, just stuck on the purple loading screen. When i press ESC it show me * Starting Reload cups, upon starting avahi-daemon to make sure remote queues are populated [ OK ] * ...
0
votes
1answer
12 views

BQ Aquaris E4.5 won't boot - Screen flashes and phone stops

I've been using this phone for a while now, but suddenly it won't boot anymore. I press the power button and after 3 seconds the screens lights up for a split second and shuts back down. If I keep ...
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0answers
24 views

Ubuntu 14.04 and Ubuntu 15.04 installation prerequisite

I have a 1st generation Gigabyte Corei3 H55 desktop computer with 2 GB of RAM. I have used it with Windows. Now I have switched to Ubuntu 14.04. I am unable to install Ubuntu 14.04 or 15.04 from USB ...
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0answers
16 views

Error in boot and login

I not normal boot because long time and after prepare screen login for inter password and login no show mouse pointer for solve problem I boot system form Through Upstart option please help for ...
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0answers
14 views

Dual Boot fully encrypted Ubuntu with windows 10

I trying to be able to add Ubuntu to my Windows 10 laptop. I would also like for Ubuntu to be fully encrypted. My understanding is that I cannot encrypt both OSs on the same hard dive even with ...
0
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1answer
34 views

Cannot dual-boot windows 10

I installed Ubuntu on my laptop under the default installation settings, which I believed should have allowed me to dual-boot with her Windows 10 installation. Ubuntu is working fine, but when I tried ...
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0answers
14 views

Deleting an a ubuntu and windows 8 dual boot and replacing with only ubuntu

I already have windows 8 and ubuntu 15.04 (dual boot) but I want to install ubuntu 14.04 LTS edition and make it my one and only os.I saw an option during the ubuntu 15.04 installation to remove ...
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0answers
13 views

weird dual boot start issue

so my pc is bust, replacement parts on the way, and im on my laptop. my laptop dual boots ubuntu and windows. so i want into windows, but when i select it via grub, it throws this error. windows ...
0
votes
1answer
16 views

Ubuntu hadn't setup itself for booting

I have recently installed Ubuntu 15.05 on my laptop. The problem is that I can't boot it anyway. Win7 is the only loading OS. But it does not offer choosing an OS for me. Also I can't see and access ...
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0answers
11 views

Bootable Win PE USB with extra files

So I'm tying to follow this guide for updating the firmware of an SSD on my laptop. The guide is designed for Windows, but essentially you need to create a bootable USB with WindowsPE, by using the ...
0
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1answer
24 views

So I'm switching from Windows 7 to Ubuntu 14.04 and I'm having some problems

I have a LiveCD and a Bootable USB that both have ubuntu 14.04 on it. I used them both on my laptop and they work perfectly fine. But.... They will not work on my desktop. I pop in the disk (or USB) ...
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0answers
27 views

Dual booting Windows and Ubuntu Partition

I upgraded my pc from windows 8.1 to windows 10. Now I want to install ubuntu 15.04 alongside windows 10. I loaded into ubuntu installer and chose something else. The problem is I have 3 partitions ...
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0answers
12 views

accessing GRUB after getting black screen after installation

I'm installing Ubuntu 14.04 LTS on an old macbook pro (2007, version 3.1, Core 2 Duo with nvidia graphics card Geforce 8600 M GT). For the live-version to work, I had to add nomodeset to the ...
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0answers
12 views

Systemd boot on 15.04 is extremely slow compared to Upstart [duplicate]

After upgrading from Ubuntu 14.10 to 15.04, my boot time increased dramatically from around 30s to more than ten minutes. The screen stays black for quite a long time, but when waiting long enough I ...
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0answers
20 views

How can I solve this problem “Input signal out of range”?

I installed ubuntu 12.10LTS 64-bit through windows however I see nothing since the screen becomes black and shows this messenge"Input signal out of range". I have read about some solutions but none ...
0
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0answers
19 views

Cannot Install/Boot Ubuntu

So this is my first experience/attempt with Linux. I have been trying to install Ubuntu v14.04 on an old MacBook Pro 17" 2.4GHz Intel Core 2 Duo. Each time I try to Live-Boot from the USB, I get an ...
0
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0answers
33 views

how to remove the only OS ubuntu14, install win8.1

dual win8.1 and ubuntu 14 used well, then I delete the ubuntu partition on disk managerment of win8.1. reboot it. then appears grub and can't enter BIOS, maybe is related to uefi. I accidently choose ...
0
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1answer
21 views

stuck in GNU grub with no OS

Linux novice here however I've been playing around with Ubuntu and ultimately came into a bug in 15.04 and wanted to revert back. I decided to install os-uninstaller to completely wipe ubuntu OS off ...
0
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2answers
35 views

Installing Ubuntu on modern laptop

I have see over the last few year that is is getting more difficult to install ubuntu. Usually it is no problem to boot from USB (CD's is obsolete anyway) But booting from USB on these machines is ...
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0answers
18 views

Installing on a new asus laptop with windows 8.1

First of all Thanks to you all in Ubuntu. I have been/my company have been using Ubuntu since 2006 (before debian/hp/sun) And it has always been very easy to install Ubuntu on a work station or ...
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0answers
25 views

Ubuntu 14.04.3 liveUSB freeze on loading

I bought an MSI PE70-2QD gaming laptop with an nVidia GeForce 950M onboard. I tried installing Ubuntu from a USB stick, but the installation froze after 5-7 sec. USB stick flashed every so often, but ...
0
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1answer
26 views

Configuration for green tty's foreground and boot text after grub menu

I have set up my system (Ubuntu 14.10) for a text boot up. I need to configure my ttys and boot in such a way that it shows green font for boot messages and ttys.Right now, after the grub menu(which ...
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0answers
13 views

Unable to install Grub2 on any drive

Installing Ubuntu-Mate Desktop Amd64 15.04 (same problem with Ubuntu Desktop Amd64 14.10) for the first time, on Dell Studio XPS. Only let me choose an external (USB) hard drive; install partitioned ...
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0answers
12 views

Portable biolinux not booting in Dell inspiron 3000

I have been trying to install a portable bio-linux OS on external hdd. I have followed the instructions given for portable ubuntu/bilinux installation which has been sucessful and also made sure the ...
0
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0answers
17 views

Unetbootin error

I'm using Ubuntu 10.04 and I have downloaded Windows 7 Ultimate .iso file in my PC. I Want to install it through a usb. But Unetbootin gives me an error saying the usb is not mounted etc etc.. but ...
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0answers
15 views

How to make a bootable Windows 7 USB in Ubuntu?

I'm using Linux and I have an .iso image of Windows 7 Ultimate saved in my PC. How do I make a Bootable Windows USB in Ubuntu 10.04? Please help.