Bootloader issues: what happens before the operating system itself starts.

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4
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1answer
36 views

how to completely blank video output on boot (no kernel logging, grub output, etc.)

So, this is an inversion of the classic question: "Why is my terminal blank on boot?" -- How do I make my terminal blank on boot? I'm creating a Debian Wheezy system with GRUB as the boot loader that ...
0
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0answers
24 views

grub2: error: /vmlinuz-3.16-ucs109-amd64.efi.signed has invalid signature

I am using a derivative of Debian, called Univention Corporate Server. It's a nice appliance that I use for my home server. Yesterday I upgraded to the newest version and since then my server does not ...
1
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0answers
38 views
+100

Boot to different partition after restore of operating system

Let's say I have a server with one RAID with 3 partitions: P1 - 20G OS / programs P2 - 190G Data P3 - 20G unused If I ever need to roll back P1 to a previous state, and I've restored a past ...
-3
votes
0answers
17 views

Kali linux does not boot in gui

I got kali linux installed on my pc for a while but now linux will not boot in gui mode , only in text mode ( terminal ). I get no errors on booting it goes directly to the login screen . Hope you ...
1
vote
0answers
10 views

How to get the values for “set root” in menuentry while setting password for GRUB2 on CentOS 7

I need to disable single user mode on my servers running CentOS 7. I read the RedHat documentation on what goes to /etc/grub.d/40_custom and how to encrypt the password and all but one details makes ...
0
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0answers
5 views

Failed to start user service: unknown unit: user@0.service after grub launch

First I have to let you know that I got absolutely no knowledge about linux and need help and explaination like Im 3. So, Im on holidays and I have no live cd with me. I tried to install crome and ...
0
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0answers
27 views

Why my manufacturer splash screen is not showing?

I recently installed Fedora 22 on a dual-boot with Windows 8 on the other. But, since I installed it, I have had the following problem: When I press my power button to switch it on, the screen just ...
1
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0answers
13 views

Live USB - Tails tries to boot but ends up booting into Kali Linux

I have a bootable USB drive with Tails and Kali Linux on it, among others. Kali boots fine. However when I try to load Tails, it manages to get past the Tails loading screen but then the Kali logo ...
0
votes
1answer
35 views

Boot Debian netinst CD to RAM?

Is it possible to boot an install CD to RAM? I want to boot the CD and eject it before I proceed with the setup. And when not, where do the changes have to be made, to get a "toram" boot option?
1
vote
1answer
31 views

Grub 2 multi image boot disk boots some images but restarts on others

The issue I'm having is that my bootable usb I have only works with certain boot images, to be more specific it will boot Ubuntu desktop iso images but not Ubuntu server. If I try to boot Ubuntu ...
0
votes
1answer
18 views

how do I make a grub boot disk with multiple boot images

How do I use commands (I'm doing everything on Ubuntu) to create a bootable usb that displays a grub menu automatically when booted from, on that grub menu lists some boot images (downloaded from ...
0
votes
1answer
24 views

What is the difference between the /boot partition files and the /boot directory in root? [duplicate]

After having trouble with booting Linux after installing Windows 7 on a separate SSD, I am just wondering, what is the benefit of creating a separate /boot partition during installation? I remember ...
0
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0answers
16 views

An error during boot that I can not see

When I boot fedora, It shows an failure about modules and it disappears and then splash appears. I checked the /var/log/boot.log but there was no errors or failures there. Where can I find it?
1
vote
2answers
43 views

Linux fails with starting on a dualboot system after Windows update

I have Windows 7 and Kali Linux on my computer, normally I don't use windows anymore. But today I started windows and it updated itself. I am writing my thesis and all my stuff is in Linux so I really ...
1
vote
1answer
85 views

Where in the kernel /dev/kmsg gets initialized?

I'm trying to figure out at which point in the boot up process /dev/kmsg gets initialized and can thus be written. On my system the first line that occurs in dmesg is printk(KERN_INFO "Initializing ...
0
votes
1answer
28 views

Problem booting Ubuntu (or any OS), even after doing clean installs

Summary: OS (Ubuntu / Windows) installs fine, but when the time comes to restart and boot, it doesn't boot. (Gets stuck; screen blinks and I am still at boot selector). Can boot to a live ...
2
votes
1answer
43 views

How to get more info about the boot message “Waiting for /dev to be fully populated”

during the boot of my Debian I see Waiting for /dev to be fully populated and then a timeout expires, the text is rapidly scrolling and so I cannot read it; the boot process continue with no ...
2
votes
1answer
56 views

How to save a file from an initramfs emergency shell?

I can't boot because of some strange error. There is an error report file generated for me, to supposedly submit it along with a bug report, or whatever. So to help me figure out what the problem is, ...
0
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0answers
18 views

New-installed debian system hangs on boot (probably a hardware issue, likely USB, maybe Ethernet?)

I recently migrated an entire system from Crunchbang 11 to vanilla Debian 8.1 (in the cleanest way possible --- backed it all up, blew away the old install, reinstalled the old /home and /usr/local, ...
1
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0answers
31 views

Getting “No DEFAULT or UI configuration directive found” when booting from USB

I made a bootable Freya-OS USB. It works fine in my laptop. But, when I am trying to boot my desktop from the USB, it shows this error: "No DEFAULT or UI configuration directive found". Syslinux ...
0
votes
0answers
27 views

Linux Mint doesn't recognize hdd in ahci mode after kernel update

Sometimes ago after a kernel update (or more, I didn't reboot, just did sleep/resume day in day out) I finally tried to reboot and got kernel panic problem you can see at the screenshot ('VFS: cannot ...
0
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0answers
36 views

Full Linux Install On USB Drive - GRUB Problems

I recently bought a new laptop and decided to install Kali Linux on it. However, the laptop (an Asus Zenbook btw.) has a 128GB drive which is not very much. That is why I bought a 64GB, SanDisk, ...
0
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0answers
20 views

Arch Bootable drive doesn't boot

I have a usb with a live arch distro (created with the dd method in the wiki). On one computer I can override the boot and boot into arch instead of ubuntu (the only other system, in UEFI mode, if ...
0
votes
1answer
72 views

Cloned server will only boot read-only

I have cloned one of my servers that is about the to be shut down into a virtualbox machine. I used rsync for that, remembering to keep the relevant attributes etc. I also modified fstab. I have ...
0
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0answers
21 views

Advice Needed for Grub2 Rescue Prompt

When I boot my system, I receive the following Error Message on my screen: error: no such partition. Entering rescue mode... grub rescue> After seeing the error, I plugged in an external USB ...
0
votes
1answer
43 views

Unable to Boot After removing Old Kernels

I removed old linux-image and linux-header files to free up space in /boot. I did this first by purging them in terminal, and when I noticed some issues with how the the operating system performed, i ...
1
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0answers
16 views

Boot live img files in grub

I've compiled a purely 32-bit version of Android that I'm attempting to boot on a device with a 32 bit UEFI. How the heck do I configure GRUB2 to load a live img file? The image file contains the ...
0
votes
0answers
59 views

Oracle Solaris 11.2 hangs during installation

I'm in the process of installing OracleSolaris 11.2 (taken from http://www.oracle.com/technetwork/server-storage/solaris11/downloads/install-2245079.html) on PC with the following spec: Intel Core2 ...
0
votes
1answer
60 views

EFI dual-boot problem on HP Pavilion 15 with Windows 8 and Debian 8

Context HP Pavilion 15 Notebook, when I bought it there was Windows 8 pre-installed. Yesterday I partitioned my hard disk and I installed a fresh new Debian 8 everything fine, here's the table: ...
0
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0answers
95 views

After installing Kali Linux next to Windows 8.1, I can see it (using rEFInd), but it cannot boot

I have an MSI laptop that came with Windows 8.1. Originally, I wanted to get Ubuntu on it using dual boot, because I need both windows only and Linux only tools for my studies. I do not remember the ...
0
votes
2answers
77 views

how do I do a command line only boot of CentOS 7?

Can someone please explain how to trigger a command line only boot of CentOS 7 from a USB boot stick? I want to boot the terminal only and then use the normal CentOS 7 terminal to swap out the ...
0
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0answers
5 views

OpenIndiana installation hangs with unsupported PCIe card in

I'm trying to install OpenIndiana (taken from http://dlc.openindiana.org/isos/151a8/oi-dev-151a8-live-x86.iso or server version http://dlc.openindiana.org/isos/151a8/oi-dev-151a8-text-x86.iso) on a ...
0
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0answers
18 views

Load root partition on embedded linux system

I'm using a zynq-7000 SoC, running a custom petalinux build, which is on an SD card. The boot partition contains a boot.bin (the bootloaders etc) and an image (containing the kernel). The root ...
0
votes
1answer
25 views

RAID boot drive not found after mdadm upgrade

I was having trouble getting a new RAID array to assemble on startup, and before anyone responded to that post, I tried updating mdadm, but this ended up taking a very long time because of all the ...
1
vote
2answers
192 views

centos 7 dual boot with windows 8.1

How do I install CentOS 7 alongside Windows 8.1 to create a dual boot machine? I did this easily enough on a Windows 7 machine using pendrivelinux. But that approach is resulting in a failure to ...
0
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0answers
29 views

Boot failure: no errors, but I can't access the shell

I just installed a new RAID 1 array as /dev/md2 to a server. It mounted correctly and I was able to read/write. I edited fstab and rebooted, but was unable to ssh in. I then plugged in a keyboard and ...
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0answers
96 views

saving file to usb stick while using linux boot stick

I am using the instructions in this youtube video to install CentOS 7 on a new computer that is running Windows 8. The tutorial uses UniversalUSBInstaller from PenDriveLinux, but the installation is ...
0
votes
0answers
22 views

HDMI non responsive after boot

I have a QNAP NAS-269G with Ubuntu 12.11 Server installed on it. When I plug a monitor to it via HDMI it shows the entire boot process. Then when the log in prompt should normally show the screen goes ...
0
votes
0answers
38 views

Elementary OS - Locked Boot

Please go easy on me and assist me. I am more than willing to provide the information you require, please just give me pointers. I have built my own personal gaming computer recently and have faced ...
2
votes
1answer
93 views

SquashFS+UnionFS as root filesystem?

What's an easy way to to use a union filesystem (read-only SquashFS + R/W overlay) as /? I'm thinking of using a custom boot script as the kernel init= argument. The script would mount the SquashFS + ...
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0answers
88 views

Startup problem: invalid partition table or use UEFI BOOT

I'm working on a Dell Latitude E5430. Recently I booted pcbsd from USB using this file: PCBSD10.1.1-RELEASE-01-31-2015-x64-DVD-USB_0.iso But I guess I did something wrong. I was trying to install ...
0
votes
0answers
32 views

How to boot Linux Mint from a CD

I want to boot Linux Mint from a CD but when I boot from the CD, all i get is a GRUB window where i can select to boot Linux Mint. I clicked to boot Linux and i get a screen with error cant read ...
1
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1answer
52 views

restoring grub mint 17

I'm currently trying to get my Mint 17 partition booting again. I tried to fix a booting problem with boot-repair and a live USB, but upon inputting the command sudo chroot "/mnt/boot-sav/sda7" ...
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0answers
42 views

how to make GRUB find modules on multiboot Linux LiveUSB?

background (skip to header=problem if you're expert on LiveUSBs, ISOs, GRUB2, etc) I'm setting up a multiboot/multiISO Linux LiveUSB as detailed here, which I intend for use on multiple hosts (i.e., ...
3
votes
0answers
48 views

Expanding root partition CentOS 6 With using fdisk

I am trying to expand the root partition on a VM which is not using LVM and I do not have (nor want to try and create then use) a disk to boot from. As such I followed what I felt was the logical ...
3
votes
1answer
49 views

Difference in execution of init with embedded vs. external initramfs?

I'm building a very minimal linux system that just consists of the kernel (v4.1-rc5) and an initramfs populated with busybox (v1.23.2). It works fine for the most part, but I observe a difference in ...
0
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0answers
47 views

How to boot from USB on Debian?

So I did a minimal install of debian jessie (without X) and now I am trying to boot linux mint USB install which I made with Unetbootin. It doesn't boot the install and pressing F12 only gives me BIOS ...
0
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0answers
197 views

fresh centos 7.1 install continually boots into “emergency mode”

I installed centos 7.1 on bare metal (dual boot with windows), with encrypted disk. Installed a few things (oracle java) and did a full yum update Now the system keeps booting to a console emergency ...
2
votes
1answer
139 views

Debian jessie without desktop

So, I installed debian Jessie on my computer. And it does not have any desktop. I have used numerous of different commands but it just say cannot be found. Thanks for the help. EDIT! One way to fix ...
0
votes
0answers
37 views

Arch very long boot-time after kernel downgrade

I just downgraded my arch kernel from 4.x to 3.17.x for the sake of being able to use shared folders feature in vmware. Right now, everything is fine and it boots up too. But boot-time has greatly ...