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

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6
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0answers
123 views

Where in GRUB2 source code is the handover/jump to kernel code?

I'm looking for the line of code where GRUB2 finally jumps to kernel code and thus hands over execution on x86 systems? I guess it's in an assembler file since this is very low architecture stuff. I ...
4
votes
0answers
40 views

Can't boot when moving Linux installation from one server to another - UEFI

Scenario I have two identical Lenovo (previously IBM) servers [xSeries 3250 M5 - model 5458EHM]. I've built Linux on server 1 and I want to be able to cold swap that hard drive to server 2. (This is ...
4
votes
0answers
494 views

How do I boot the linux kernel over PXE with dnsmasq and syslinux?

Are these dnsmasq.conf options fine: port=0 interface=enp0s20u2u1 bind-interfaces dhcp-range=192.168.2.50,192.168.2.220,12h dhcp-boot=boot/syslinux/lpxelinux.0 dhcp-option-force=209,boot/syslinux/pxe....
4
votes
0answers
778 views

Parititioning for a UEFI boot loader, can LVM be used?

I just bought a gently used laptop and I am trying to figure out why this is. It has a single SSD that when running fdisk -l shows as Disk: /dev/sda. Under it though are 5 "devices" under that disk, ...
4
votes
0answers
6k views

Is there a solution for when a system hangs on “switching to clocksource tsc” anyway?

Ok so this is exactly what I did yesterday, and what I have tried to solve the problem so far. The distribution is Ubuntu Server 12.04. What I have done just before the error appeared I added a new ...
4
votes
0answers
368 views

GRUB 2 scripting: convert device name in GRUB notation into a Linux device name

I'm trying to use partition labels (or UUIDs, that does not matter) to select root partition without use of an initrd/initramfs. With initramfs, this is fairly easy: root=LABEL=... or root=/dev/disk/...
4
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708 views

getting the message “out of partition” after installing GRUB 2. What is happening?

I recently moved a partition with a complete Linux install except /home to a new disk (with DD). Everything went fine, I can mount the partition, browse it... perfect. Next step: install GRUB to ...
3
votes
0answers
119 views

ABRT report says “irq 19: nobody cared”, but why?

Every couple weeks, I need to reboot my system. When I do, and enter as root in the terminal, the following message (in some variation) appears: ABRT has detected 3 problem(s). For more info run: ...
3
votes
0answers
217 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
0answers
93 views

Is the EFI boot loader not in MBR?

Based on this answer for detecting the boot loader I ran sudo dd if=/dev/sda bs=512 count=1 2>&1 | grep GRUB and it matched. However, I'm pretty sure I'm running Gummiboot since modifying /boot/...
3
votes
0answers
4k views

Kali Linux USB Live Boot Not Working

I downloaded the Kali Linux ISO 64-bit off of this page: http://www.kali.org/downloads Then, I used the Kali Linux Live USB Install Procedure on this page for Windows. I boot my computer from my ...
3
votes
0answers
179 views

Linux boot with broken partition

I have two ext partition on my linux One for / And one for /home I wanted to reduce (with this method) the home partition (which was only something like 10% filled) to create a new partition for ...
3
votes
0answers
246 views

TPM passwordless boot

I'm trying to create device with CentOS6, encrypted disk (with LUKS), TPM module and TrustedGRUB to boot securely and without interaction. I'm following instructions from https://github.com/shpedoikal/...
3
votes
0answers
333 views

windows 7 reinstallation killed grub

I have been running dual boot windows7/ubuntu. Recently I reinstalled windows 7, and I no longer have the option to boot to ubuntu. I would like to be able to get my dual boot working again or at ...
3
votes
0answers
586 views

Cannot Boot New Linux From USB

Recently, I got a new laptop, the MSI gx60. I grabbed a usb and loaded the Linux Mint 16 Cinnamon image onto it, tested it on my old laptop and desktop, where it worked. However, when I try it on my ...
3
votes
0answers
272 views

Changing a root file system from initramfs to JFFS2

I am running Linux on an ARM based development board from flash memory. The rootfs is initramfs. I chose this in the configuration utility under "file system". Then I realized that I need ...
3
votes
0answers
3k views

System freezes upon executing any boot option in a live USB installation of Mint

Problem I'm trying to install Linux Mint 16, 64-bit, MATE using a live USB. The boot option menu itself is responsive and work as expected. However, when I execute any of said boot options, the ...
3
votes
0answers
449 views

Can't install any version of Linux

So I was trying to install #! (Crunchbang) and downloaded the 64 bit version and tried installing it. Everything would work until it was time to install grub. The grub installation would fail every ...
3
votes
0answers
348 views

Used xrandr to rotate monitor but cannot reverse it after deleting script

I following a guide to have my tablet (Samsung ativ 700t running ubuntu 12.10 Gnome3) invert the screen 180 on login I place a script file in /etc/X11/Session.d/45custom-script. Contents of file: (...
3
votes
0answers
648 views

How to load HID kernel module from the kernel command line?

While upgrading a server from kernel 3.2.9 to kernel 3.5 I had a problem with the network (ifconfig eth0 up won't work) so I updated the system to get a newer userspace, but in the process something ...
2
votes
0answers
26 views

Linux kernel hangs at “Starting kernel …”

I have enabled Secure Boot on an embedded device successfully. The problem is that when I am booting in this mode the process seems to get stuck right after the line: Starting kernel ... once U-boot ...
2
votes
0answers
20 views

Make bootable disk from tar archive

I have a compressed tar archive from a SLES 11 root directory. I'd like to boot another machine with a live linux, extract my OS archive on a disk, and make the disk bootable. Is there any easy way to ...
2
votes
0answers
21 views

Linux Mint GUI stays black after login

Suddenly this happens: When I boot my noteback linux mint boots to the login screen. Then after I logged in the mouse cursor is visible centered on a black background. And thats where nothing more ...
2
votes
0answers
65 views

Linux - couldn't mount RDWR because of unsupported optional features (400)

I try to run Android from SD-card. This card is prepared. There are partitions: boot(FAT32), rootfs(ext4), system(ext4), cache(ext4) and usedata(ext4). Boot partitions has files to run u-boot: MLO, u-...
2
votes
0answers
32 views

Is this possible to use a different rootfs that the one kernel comes with?

Here's the situation: I have a compiled zImage that comes with its own rootfs that contains linuxrc. I can extract it using this script. I would like to modify some startup scripts that are part of ...
2
votes
0answers
13 views

Not Booting past Logo

I have been messing around with uninstalling a program (emacs24) on Kubuntu 14.04 and for this followed this instruction: (see Hartmut's answer). After I didnt manage to get rid of all emacs files, ...
2
votes
0answers
29 views

LUKS decryption at boot: using an nfs mount to store the key

I've been through this site for a number of LUKS related questions. I've seen methods for storing the LUKS key in plaintext on the root filesystem or on a USB key. My question is: Is there a way ...
2
votes
0answers
90 views

jackd and SuperCollider headless problem

I am trying to boot an RPi autonomously to start jackd, SuperCollider and then play a SuperCollider patch. Jack launches and Supercomputer starts to compile but then something goes wrong. The script ...
2
votes
0answers
46 views

Mysterious 8 second delay in boot after grub

I have installed Fedora 23 (KDE spin) on an HP Prodesk mini 600 G2. There is one problem I can't quite figure out, though: after grub comes up, and I press enter on any kernel to boot, the screen goes ...
2
votes
0answers
138 views

Configuring WiFi drive on MacBook Air running Kali Linux

I installed Kali Linux 2.0 recently, and am trying to make the WiFi work. I was following this guide. However, when I get to the 4th step, I get this: root@KaliDark:~# modprobe -r b44 b43 b43legacy ...
2
votes
0answers
40 views

Set up bluetooth keyboard to enter disk encryption password

How can I set up a bluetooth keyboard, so that I can use it to enter the disk encryption key, so that my encrypted linux system boots.
2
votes
0answers
363 views

CPU Pipe Underrun Errors

Every time upon booting and then unlocking my GUI session on Kali Linux 2.0, I get another of this error in Virtual Console 1: [ 1235.586792] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR*...
2
votes
0answers
128 views

Arch Linux stuck booting

Since I updated my Arch system with sudo pacman -Syu I am not able to boot into X anymore. All I see is a warning about the unsupported brightness interface. This was shown before, is a known bug and ...
2
votes
0answers
930 views

root filesystem on nvme device

I have an Intel 750 nvme drive. Works fine. Well.. sort of. I would like to use this device as my root file system. I have no bios support for nvme devices. I have the nvme driver enabled in the ...
2
votes
0answers
260 views

Cannot boot into Linux off live USB

I am trying to dual boot Linux on my laptop (Dell XPS 15) which is running Windows 10 Pro. I did not have any problem dual booting the two operating systems on my desktop. I cannot boot up ANY Linux ...
2
votes
0answers
312 views

How do I add modules, binaries or scripts to initramfs in RHEL distributions?

I have an initramfs script I developed for Debian distributions that required some extra binaries to be loaded into the image. I'm now trying to port this to RHEL distributions and I'm struggling. To ...
2
votes
0answers
73 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 ...
2
votes
0answers
132 views

How do I bypass entering exit manually at the initramfs prompt?

I installed lubuntu onto my desktop PC and it does not have any other OS on it. Everytime the system boots up, I get to the initramfs prompt. It does not show any errors. If I enter exit, the system ...
2
votes
0answers
167 views

What is the systemd equvalent to sysvinit 'X-Start-Before'?

Quoted from https://wiki.debian.org/LSBInitScripts. X-Start-Before: boot_facility_1 [boot_facility_2...] X-Stop-After: boot_facility_1 [boot_facility_2...] provide reverse dependencies, ...
2
votes
0answers
349 views

Sound Problem in ubuntu startup

When Ubuntu boots first time, no sound comes out of speakers. But when I insert any headphone the sound is OK. also when I insert headphone first time and eject it from laptop then sound comes fine ...
2
votes
0answers
605 views

How to clean up bootloaders & UEFI entries from other installs?

I got a new Windows laptop, and I wanted to dual boot with Linux. I installed Fedora, before changing my mind and going back to Mint. I'd like to keep Win 8.1 and Mint. However, now my UEFI boot menu ...
2
votes
0answers
657 views

Setting the EFI Framebuffer's Resolution during boot

I've got a MSI WD-60 laptop running Gentoo. It has one of those 3840x2160 screens so I've had to setup Gnome/Firefox/IntellJ to double their DPI for anything to be readable. It all works fine except ...
2
votes
0answers
237 views

Black Screen Booting Into Linux Mint (On Dual Boot Machine w/SLI + 2 Monitors)

I'm currently dual booting Linux Mint and Windows 8 on a machine with dual ASUS nVidia GTX 770s running in SLI (on an ASUS Z97-Deluxe motherboard). Everything works fine on the Windows side, but when ...
2
votes
0answers
466 views

Fedora installation breaks UEFI boot

I am having problems installing Fedora 21/22-alpha on brand new system and I am new to the EFI thing so I am running into issues. I installed Win7, booted in UEFI, installed in UEFI, at least I see an ...
2
votes
0answers
3k views

Jessie: can't boot the kernel 3.16.0-4-amd64

I have been using Jessie for a few months now, and I had a problem booting my computer a few weeks ago. I had this error on boot: early console in decompress_kernel Decompressing Linux... Parsing ...
2
votes
0answers
173 views

Ubuntu Bootchart - How do I actually interpret this chart?

I'd like to start obsessing over optimizing my Ubuntu boot time, but I've searched online for multiple days—and only have a vaguely more coherent idea of what I'm looking at. Here's my bootchart. I ...
2
votes
0answers
76 views

Linux Networking Bootup script takes too long

I am working with a fork of a raspberry pi SoC. One of the modification is the use of AP6210 WiFi/Bluetooth chip. I am running Debian. During boot up, the following 3 startup scripts need to run in ...
2
votes
0answers
57 views

Improve kernel boot time

I am using OMAPL138 and kernel version 2.6.37 and I would like to improve the boot time. By analyzing the kernel boot process I think it is taking a long time at MII PHY CONFIGURATION. The printscreen ...
2
votes
0answers
107 views

Linux - On boot do push-button-connect to strongest wireless

I'm trying to configure linux (in this case CentOS) to automatically connect to the nearest WiFi via "push-button-connect". This micro computer has no keyboard or display, so the goal is to hit the "...
2
votes
0answers
403 views

Unable to boot with dracut and luks: '/dev/resume' : file exists

I am installing gentoo and have performed my first reboot after configuration and installation within my chroot environment. I am using LUKS and LVM to manage encryption of my drives. I am encrypting ...