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

learn more… | top users | synonyms

1
vote
0answers
10k views

stuck at grub rescue on boot, no bios, no live cd, ls returns hd0

I have an external hard drive with elementary os on it, and when I took it out my preinstalled windows 8 laptop, it came up with the "error: no such device:'hex number' grub rescue>". I can't boot ...
3
votes
3answers
1k views

Stuck in login loop after editing /etc/profile

I edited my /etc/profile in root to attempt to run a script at login, but apparently I did that wrong. The issue now, after rebooting the VM, the login loops. If I type in my user name and then ...
2
votes
1answer
637 views

When and why is /etc/init/failsafe.conf invoked on Ubuntu Server 12.04?

Could someone please tell me when during the boot process and why /etc/init/failsafe.conf is invoked? If possible, please point me towards a resource (keyword or link) where I could read more about ...
2
votes
1answer
697 views

How to do an automated measurement for the boot time for freshly build images?

I want to generate images for an embedded system and automatically measure the time they took for booting (especially for different systems). I'm using Buildroot to generate my Linux Images. I ...
3
votes
2answers
1k views

How can I install Linux on a UEFI system with Secure boot?

My motherboard is a Gigabyte 990XA-UD3 (CPU 1), it's a UEFI -Dual boot, and when I try installing Linux Mint 16 Cinnamon or Ubuntu 13.10 it always bring this error (initramfs) Unable to find a medium ...
1
vote
0answers
363 views

Booting from USB devices on secure boot UEFI system

I'm trying to put an ArchLinux install onto a USB-HDD and want it to be bootable on BIOS systems as well as on UEFI systems that use secure boot. Therefore I have one main question. Does an UEFI ...
0
votes
1answer
632 views

Linux Fedora 17: locks up with a blank screen after default boot

I have installed Linux Fedora 17 on my new desktop PC, but the default boot ends up with a black screen and no response from the keyboard or mouse. This is after the oval in the centre of the screen ...
1
vote
1answer
126 views

how to change partitioning?

I have a hdd with /, /home. I just got new SSD and I need to change my partitions without any reinstalling. I would like to create a separate /var partition (which is currently under /) and leave it ...
3
votes
2answers
700 views

How does a bootloader and kernel interact after the kernel is loaded in memory?

I'm a little bit confused about the role of bootloader and its interaction with kernel, especially when talking wrt ARM Llnux. Once the Kernel is loaded into RAM, is there any job left for the ...
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 ...
1
vote
2answers
4k views

Create a booting external harddrive without formatting it

Ok so here's my situation: I have an external hard drive, but my pc recognizes it as a normal HDD (not USB). So I have three partitions, one for data storage, filled with (alot of) data, one with a ...
5
votes
3answers
8k views

Try to disable console output, console=null doesn't work

as mentioned above, I want to to completely turn off the console output, but putting console= or console=null in the kernel command line doesn't change a thing. When I enque quiet to the kernel ...
1
vote
0answers
19 views

How to ask for a password to mount crypted swap at boot time on Linux Mint 16 with initramfs-tools? [duplicate]

I use encrypted home folders on my notebook, which prevents use of hibernation on standard setup, because - and for a good reason - besides encrypting the home folder with ecryptfs, it reformats the ...
0
votes
2answers
1k views

Boot the Arch Linux installation USB media on Dell XPS 13 (L322X) UEFI

this is my first attempt to install Arch Linux on my Dell XPS 13 (L322X) laptop in UEFI mode. I've dowloaded "archlinux-2014.02.01-dual.iso" and written to my USB pen drive with the dd way. I boot my ...
2
votes
0answers
151 views

Why does the kernel boot faster with less memory allocated?

This is not a important question, I'm just curious. Something strange happened, which isn't quiet clear to me: In the kernel command line, the amount of the memory can be set statically with the mem=...
3
votes
1answer
2k views

How to set laptop screen brightness just after boot with full disk encryption

my girlfriend bought Lenovo Essential G500 i5-3230 and I installed Linux Mint 16 on it with full disk encryption. It is standard installation with encryption using dmcrypt and LUKS. But there is a ...
0
votes
0answers
367 views

Stuck at Grub command line after boot repair

After updating Windows 8 to Windows 8.1 I lost access to Grub and my Linux Partition (running Elementary OS) so I tried using boot repair from a Live USB and now I can't access either. It drops me out ...
1
vote
1answer
273 views

Ubuntu load and hang on live USB [closed]

I seem to have run into some difficulties trying to install Linux alongside my USB. I made a bootable USB stick and done all the UEFI firmware settings from which I disabled fast boot. Now when I run ...
8
votes
1answer
612 views

Does Linux still have to reside within the first XX cylinders of a HDD?

It's been a while since I last bothered with partitioning my hard drive, but now it's time again and I remember last time I did this there was a requirement to put the root partition (or only GRUB?) ...
2
votes
1answer
796 views

Booting from usb fails as I try to install elementary OS on my PC

I'm trying to install Elementary OS Luna on my PC. The problem is that every time I try to boot from my usb, on which I've got the OS installation files, it fails. First I press F12 to get to the ...
2
votes
1answer
422 views

grub2-install doesn't work the first time, but does work the second time

This is a weird one... I'm working on some software. It has a function to make a USB device bootable. It does this by running a long, complex sequence of actions to copy a minimal Linux OS onto the ...
0
votes
2answers
105 views

Is there a way to boot linux directly from MBR?

Inspired by UEFI, I want to skip the stage of the bootloader (grub, lilo, syslinux) and boot linux directly. Is this possible? Cant I just boot the kernel directly, or have a minimalistic bootloader ...
1
vote
0answers
247 views

Installled openSuse and now can't boot from USB or DVD

I've just installed openSuse 13.1 and, while it's great, now I want to try Mageia 4. Problem is that after installing openSuse my machine (Lenovo G560) won't boot from a USB stick or from the DVD ...
2
votes
2answers
1k views

Why does Debian hang after DHCP?

This is my /etc/networking/interfaces file: auto eth0 allow-hotplug eth0 iface eth0 inet dhcp iface eth0 inet6 auto And here is a picture of where it is hanging:      Source: ...
1
vote
1answer
127 views

Unable to see Fedora 20, when triple booting it with Debian 7, and openSuSe 13.1

I just don't understand why I cannot see my Fedora 20 having it planned to triple boot it with Debian 7 and openSuSe 13.1. Initially I partitioned my system to: /dev/sda1 for openSuSe 13.1 /dev/sda2 ...
0
votes
1answer
559 views

Target filesystem doesn't have requested /lib/systemd/systemd

I have been using systemd for about a month without any problems on my Debian Jessie. I installed it according to the Debian wiki. But all of a sudden today I got this error:     ...
1
vote
1answer
352 views

Remove (text based) Linux Logo that comes after booting

I ported Petalinux on Zynq board by Xilinx. I am having a log message as shown below: . . . . .[Wed Feb 12 14:55:44.166 2014] Hash algo: sha1 [Wed Feb 12 14:55:44.166 2014] Hash value: ...
4
votes
1answer
5k views

Daemon - how to tell the start daemon to execute this daemon as different username than root?

I have this startup script, when i launch i have the execution done by username: root, instead of username: sun. How can i tell the start_daemon to execute it as username : sun not root? $ ps aux | ...
0
votes
1answer
410 views

Having difficulties mounting a rootfs for an embedded Linux

I want my Kernel to start a squashfs rootfs for an embedded Linux. The squashfs file is on a sdcard, therefor i put these parameters on it's command line: console=ttyS0,115200 root=/dev/sdb1 rw ...
0
votes
1answer
601 views

NFS: failed to create MNT RPC client status = -101

I am trying for network file system (NFS) booting between two systems. I am using dhcp server to assign IP-address for client. And my kernel and root file system are present in server. My client is ...
1
vote
1answer
563 views

ATI driver and boot problem “Starting Timidity alsa midi emulation”

It has been resolved. See answer bellow.. Asked this on askubuntu, but they knocked me down as off-topic and sent me here.. After upgrade I can no longer boot into gui. It stops on "Starting ...
0
votes
4answers
18k views

Kali Linux Live USB boots into text mode. Unable to Start the GUI [closed]

I am booting kali Linux from the USB. But it boots me into Kali login prompt. When I provide the credentials for root. It gives me root prompt.root@kali. Any pointers please on how to boot into GUI ...
2
votes
3answers
3k views

Running commands on startup on a Red Hat server

I have a Red Hat server instance on AWS that I'm trying to make a nice AMI image of so I can test specific instance machine types with Apache Bench (ab). I'm currently just trying to create the OS ...
1
vote
1answer
353 views

Making a real universal bootable Arch pen drive

I've followed this article, and been able to get a fully working 32-bit installation on a Kingston DataTraveler 8GB pen drive, with a BIOS boot partition, and a home/root ext4 file system without ...
1
vote
0answers
43 views

For what are disk signatures being used for by GNU/Linux (distributions) / grub?

I am talking about disk signatures in context of the MBR. The area from 441 to 445 bytes. For what does the GNU/Linux kernel, GNU/Linux distributions usually use disk signatures for? I only found ...
1
vote
1answer
514 views

Linux Booting with USB File System [closed]

I'm trying to boot a Linux system stored in a USB drive that I got by following the Linux from Scratch manual. I finished all but the booting part, the problem is that when the kernel tries to to ...
0
votes
2answers
586 views

How to disable Network and Bluetooth driver loading

I dont need Bluetooth and Ethernet. SO I want that the next time I boot my system the OS do not waste time in loading corresponding drivers. How do I do in general in any linux flavor ?
3
votes
2answers
4k views

How to move EFI and boot partitions?

I am in the midst of moving these two partitions from sda5 and sda6 to sda1 and sda2 respectively. This is to allow me to have a contiguous space for the root file system to grow. The following is ...
1
vote
1answer
252 views

How to show progress when loading initrd?

I have a complete root fs built into initrd, so it's almost 500MB. It takes a while to load to memory and during this time, the screen has no indication of the progress. I would like to know if there ...
2
votes
1answer
744 views

Is it safe to delete old boot and EFI System partitions?

I have installed a new OS in the free space of the same hard disk after failing to upgrade the old one. Now there are two copies of boot partitions and EFI System partitions. After a harrowing ...
1
vote
2answers
3k views

How to recover from a boot hang after deleting old swap?

I did a fresh installation of Fedora 20 in the free space of my hard drive after failing to upgrade from the older version. Everything seems to be working fine until I deleted the partition containing ...
1
vote
1answer
634 views

How to change the disk signature of a raw image?

I am talking about disk signatures in context of the MBR. The area from 440 to 444 bytes. Let's say I got a bootable raw image (bootable in a virtual machine). How can I set the disk signature to a ...
4
votes
3answers
4k views

How does Linux deal with a separate /boot partition?

I am interested to learn about how Linux deals with a separate boot partitions. I am not interested in actually doing this, but I would like to know how this works under-the-hood. Consider a hard ...
10
votes
2answers
11k views

Human readable dmesg time stamps on OpenWRT

The output of dmesg shows the number of second+milliseconds since the system start. [ 10.470000] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver [ 14.610000] device eth0 entered ...
0
votes
1answer
461 views

How to create bootable debian usb drive from an existing linux partition?

I've been using linux (ubuntu, debian, and salix) for a few years but have never been able to create a bootable usb drive from within linux. I've always had to use pendrivelinux which is a ...
1
vote
1answer
80 views

How to install Debian from an .iso on the filesystem?

I am running Ubuntu and I want to be able to boot into Debian Wheezy .iso which I just downloaded, how can I set this up? I don't want to use an external device like a usb or cd/dvd
0
votes
1answer
128 views

Unbootable system, uneditable boot options

My distro (Trisquel, a modified version of Ubuntu 12.04) comes with a 3.2.0-38 kernel. I recently reinstalled it, and after installing a bunch of updates I found that boot would hang on the splash ...
3
votes
2answers
377 views

Password protect Grub2, but still allow normal boot

I have seen this link , but I don't have grub.conf in the first place. His situation is the inverse from mine though. This link explains quite a fair bit on Grub2, but I am still clueless as to how ...
1
vote
0answers
179 views

Why does my system freeze during bootup unless I boot into recovery mode?

I installed some packages, and now when I try to boot into it normally it freezes at this point. The only thing I can do from there is reboot the system. When I do that, this is what's displayed. ...
2
votes
1answer
1k views

Can I force Linux to boot its initializations parallel? [closed]

I was wondering if I could manage to initialize drivers, services etc. (all these jobs what Linux does during startup) in parallel instead of sequentially. I want to aggressively lower the boot time. ...