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

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125 views

How to get the very first boot messages in high resolution

After upgrading to debian jessie I abandoned the proprietary nvidia drivers and switched to nouveau. I am using grub2 to boot. Kernel is 3.8.2 compiled from source. my graphics card is an nvidia ...
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1answer
70 views

Why isn't VBoxManage booting from DVD?

I am trying to use VBoxManage to create and manage CentOS 7 virtual machines on a CentOS 7 server. The commands below first result in the following conflicting statements: 1.) that the virtual ...
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1answer
46 views

Deleted Sudo and Can't Access Grub

I deleted sudo, and I can't access grub so that I can restore it. I have a bad feeling that I don't have grub. Is there any possible way to restore it? apt-get doesn't work on my computer either.
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1answer
46 views

Reset admin password in Cent OS 7 from grub [duplicate]

I just recently installed cent os 7 and I forgot the admin user password so now I couldnt log in and locked out. I entered the grub boot menu and tried to change the password using password command ...
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1answer
288 views

Grub not loading config file or booting into linux automatically

I was trying to dual boot elementary os with windows on my laptop (Asus Zenbook UX305). To do that I shrank the windows partition using the windows disk manager, and then used the Elementary ...
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1answer
298 views

EFI No loader found. Configuration files in \loader\entries\*.conf are needed [closed]

When I boot my install in EFI mode I see a EFI menu with no entries. On hitting enter I get the error No loader found. Configuration files in \loader\entries\*.conf are needed. I have an entry in ...
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1answer
245 views

External HDD not mounted at boot, but fstab seems ok

I'm on a Raspberry with DietPI distro and I cannot mount a NTFS hard drive at boot. This is the fstab file: #Internal Drives--------------------------------------------------- proc /proc ...
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0answers
42 views

OpenSuse minimal server doesn't boot after restart

I am trying to configure a remote server running OpenSuse 13.2 x64 minimal and I believe I have messed something up since the server will not boot anymore after issuing shutdown -r now. Since I only ...
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1answer
37 views

I have linux intalled when I boot it says no boot device found but in a live session all my data is there

Here is the paste of boot-repair http://paste.ubuntu.com/12558734/ I can boot from a live usb and I can open the hdd and all of the data is there. My computer is a Dell M3800 with Ubuntu 14.04 ...
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1answer
68 views

Set tty1 as default

I am using vinoth@vinoth:~$ uname -a Linux vinoth 3.2.0-4-amd64 #1 SMP Debian 3.2.63-2+deb7u1 x86_64 GNU/Linux Question is: If I boot my system, I am getting tty7(GUI) by default. How to change ...
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1answer
76 views

Systemd is unmounting my /boot partition

My sda1 is mounted to /boot after booting, and I can manually mount it just fine. But something is automatically unmounting that partition, even after I've manually mounted it. These are the current ...
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1answer
130 views

LINUX Ubuntu Gnome 15.04 Grub2 doesn't detect other SO

I bought a new machine, New Intel i7 Haswell-E 6 Cores processor, 16Gb 3000MHz DDR4 Memory on a GA-X99 Mobo. I put in it 3 new SDD Disks: One for a clean Windows 10 (Works Fine), One for a clean ...
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0answers
55 views

Why doesn't Ubuntu (and Mint) install a boot sequence

I've tried to install a new Linux operating system and I've tried different flavors (x)ubuntu, Mint etc. With and without encryption, with and without LVM, but I'll always get the same error. When ...
0
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1answer
390 views

How to repair Elementary OS?

I was installing Google Chrome on my Elementary OS from installer and due to unmet dependencies I run: sudo apt-get install -f Don't know what happened so many removing operations started I just ...
0
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1answer
270 views

Grub won't boot after Linux installation

After getting fed up with Ubuntu because it wouldn't boot grub, I decided to use the distro Elementary OS. Elementry OS won't boot grub either. I'm not dual-booting, and I've installed Ubuntu in the ...
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0answers
64 views

Having trouble setting up an Ubuntu/Windows 8 dual boot

I hope I'm not posting this in the wrong place (and if I am, please direct me to where you think would be a better place to post it) as this doesn't relate entirely to Linux and is really more to do ...
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0answers
22 views

What happens when bleachbit turns grey?

I just ran bleachbit as a regular user (not as root) and the progress bar at the top is stuck at "Please wait. Wiping free disk space. About 0 minutes remaining" and the entire bleachbit screen has ...
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1answer
142 views

How to boot linux without an initramfs?

As the title says I'm looking for a way to boot an existing linux kernel without an initramfs. According to this link it should be possible simply by editing /boot/grub2/grub.cfg. But if I try this ...
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1answer
510 views

Systemd hangs before TTY during boot in archlinux

systemd of my archlinux hangs since this morning without any error message and before TTY. So, I cannot use Ctrl+Alt+F1. The last thing I see is Reached Target Bluetooth. But everything looks fine ...
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1answer
428 views

How do you write a grub.cfg menuentry for Debian Netinst (8.2 as of writing) to boot via USB?

I keep several Linux distros on a USB stick and manage them by simply writing grub.cfg entries for each distro. The other distros I keep on the stick boot and run just fine, but I (and others, it ...
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1answer
212 views

How to boot gentoo with systemd, UEFI, lvm2 rootfs with systemd EFI boot?

I've installed Arch Linux with that setup. And now, I want to have dual boot with gentoo. But, when booting gentoo, the root UUID (on LVM) not detected. My partition scheme is like this: (lsblk -f) ...
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4answers
242 views

decrease kernel boot log verbosity level

When my kernel boots, apart from the useful important information, it prints lots of debugging info, such as .... kernel: [0.00000] BIOS-e820: [mem 0x0000000000000000-0x000000000009d3ff] usable ...
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2answers
63 views

Resolution too high

I have kali linux running on my Macbook Pro 13" Running cmd xrandr returns screen 0: minimum 2560 x 1600, current 2560 x 1600, maximum 2560 x 1600 ... How can I get a different Resolution? 2560 x ...
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0answers
53 views

How to boot without GFX drivers to allow low resolution

I am running Kali linux on my 13" notebook. During the initial boot the font is blocky and large - which is what I want. However as we progress through the boot stage, at some point the screen ...
6
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1answer
63 views

Moving /boot partition without messing up the system

I have deleted my old Linux Mint partition I had installed beside my new current Rafaela one. Thus, I have free space I want to add to my home partition. Above you can see the partition layout: sda4 ...
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1answer
23 views

Removing drive from LVM that has the /boot partition

I have two drives /dev/sda and /dev/sdb that are in a Volume Group with three volumes: /boot, /root, and /home, mounted respectfully. If I remove /dev/sda after doing # pvmove /dev/sda # vgreduce ...
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0answers
46 views

Can't log into Centos

I have a CentOs 6.5 mail server which was compromised and used to send spam therefore forcing us to do some hardening. I followed enter link description here hardening tutorial to the letter which ...
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1answer
77 views

After reinstalling Arch, the windows bootloader no longer works

Okay, so I'm fairly new to Arch (I installed it a few days ago) and installed it alongside Windows. It worked well, but unfortunately, the next day my arch distribution was unable to find any ...
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0answers
31 views

Linux keeps booting being in a less priority drive from BIOS

I have Windows 7 on a hard drive, and I've installed LinuxMint into another. I did manually the partitioning for /boot, /, swap area and /home sepparately, and made sure to place the boot loader ...
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0answers
48 views

Repair File System After changing the partition structure

I have dual booted linux centOs with windows. Now I changed the partition structure of linux with a partedMagic live CD. Since I have used the EasyBcd to make the boot menu on windows, I can still ...
0
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1answer
65 views

Refind Boot Too Slow 30 Seconds

I have installed refind on it's own dedicated partition on my Macbook Pro so that I can boot Linux, but it takes almost 30 seconds between switching the computer on and seeing the refind menu. Is ...
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0answers
158 views

installing kali linux in mbr (not gpt)

I previously dual booted kali and windows 7. There was no problem with that. Then I removed both of them and partition the drive using fdisk(for MBR). I cannot use GPT partition as my BIOS does not ...
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0answers
110 views

operating system not found Kali Linux (GRUB not loading)

I previously had kali linux along with windows 7. I removed both of them , keeping only a backup data on a partition. I reinstalled Kali Linux. Installation was correctly terminated. Now when the ...
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0answers
93 views

Arch won't boot into grub on HP Elitebook, but does everywhere else

So this is not my first time setting up arch on a system. But for some reason this here is not working. I have an HP Elitebook 2560p, I already had Fedora 22, Ubuntu, Centos and other Linux distros ...
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1answer
61 views

Can grub load a kernel from HTTP?

Typically the kernel file is loaded via disk. Questions Is it possible to load it via HTTP/HTTPS? If so how?
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1answer
42 views

How to store linux apps on my bootable linux pendrive?

I use bootable linux(ubuntu 15.04). Everytime I boot linux using my pendrive, I have to download apps. After I remove my Drive ,the apps are uninstalled. Is there any way to store these apps on the ...
2
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1answer
573 views

fstab mount, boot stuck on “A start job is running for dev-disk-by\…”

I am running debian 8.1 and working on this for hours now! I try to auto mount seagate and medion on boot if they are plugged in, but if the server is booting without one of these LABELs it stucks ...
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3answers
160 views

How to know boot time on Ubuntu

How to get via terminal log of system boot time for last month. I tried to use last boot command, bit it returned information from the beginning of month.
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1answer
84 views

shuttle xs35v2 - can't boot from usb drive

I'am trying to install lubuntu on a new shuttle barebone xs35v2. I have tryed with various usb-sticks and diffrent versions, e.g: lubuntu-net installer, lubuntu 62 and 32, and standart ubuntu-version! ...
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1answer
145 views

how big should the /boot directory be in a CentOS 7 server?

I am installing CentOS 7 in a 200GB partition of a 2TB hard drive whose other partitions will later become managed by this master CentOS 7 installation. How big should the boot mount installation be? ...
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2answers
1k views

Dualboot win10/Linux Mint boots directly into win10 - doesn't show grub

So I have a dual boot setup using Windows 10 and Linux Mint 17.2 but I can't boot into Mint normally because my laptop always boots into windows without showing grub. In order to boot into Mint I ...
0
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2answers
111 views

How to start Debian without installation from USB

I want to build a Linux/Debian live USB Stick, to modify my partition tabel. I read that modifiing the partition table shouldn't be done while Linux is running on the hard drive. Because of that the ...
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0answers
63 views

isolinux.bin is missing

I want to build a debian live CD and live USB image. It seems as if I need the following file: isolinux.bin I use following tutorial: ...
4
votes
0answers
87 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 ...
0
votes
0answers
159 views

Changes in grub customizer doesn't have any effect in Manjaro

I've just installed Manjaro Linux and wanted to customize the boot menu with grub customizer as I'm used to in Ubuntu. But if I save the changes and reboot the changes are not reflected in boot ...
0
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0answers
83 views

replacing windows 8.1 with CentOS 7

A new computer came pre-installed with Windows 8.1. It is an Acer Aspire T desktop. I would like to completely erase windows 8.1 forever from the machine, and replace it with CentOS 7. How can I ...
0
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1answer
41 views

WLAN & Debian based Linux distros: Soft-enable WLan by default

It seems Debian based Linux's have wlan soft-blocked by default. I verify it on my Linux Mint laptop: even if you rfkill unblock all interfaces (in rc.local or in a service...): 2 seconds after boot ...
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0answers
89 views

Server not booting after Debian 8 upgrade

I recently upgraded my server to Debian 8 and the system will no longer fully boot. The server is hosted at OVH so obviously I am getting no help form them as the service is unmanaged, all they sent ...
0
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1answer
134 views

deleted linux Mint from Win 8.1 dual-boot and cannot reinstall linux now

Until yesterday I had a dual-boot of Windows 8.1 with linux Mint 17.2 Rafaella Cinnamon 64bit. Via the terminal I deleted something that I shouldn't and then when I rebooted the PC, linux stuck at ...
2
votes
1answer
29 views

multiple systemd-fcsk message on Debian 8.1 boot

Suddenly, when booting my computer, I see several messages like this: [ 16.123575] systemd-fsck[337]: , 408::f6/00, 306::c6/00, 408::f6/00, ... and in the end: Not automatically fixing this ...