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

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linux kernel grub/boot issue

I'm working with a specific software package that is only compatible with a older linux kernel version. After installing this older version via the following command sudo apt-get install linux-image-...
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7 views

Booting kernel (FIT image) with no rootfs

An embedded Linux device I am working with has the following kernel parameter: root=/dev/ram0 Additionally, the kernel image is bundled together with an initrd and device tree to make a flattened ...
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32 views

Trying to get my system running without an initrd

I've been trying to configure a kernel that will not require an initrd to boot. I haven't succeeded. The filesystem I'm attempting to boot from is ext4, and I have all the extended filesystems ...
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1answer
27 views

Booted from NFS Linux has no permission for su command

I've booted Linux from NFS with Android system. And now I have to execute command as super use in minicom. But system doesn't allow me to switch to super user mode. Every time when I type: shell@...
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7 views

Linux kernel boot parameters: boot, union

I'm trying to put Debian Live onto pendrive. I know I can do it by simply executing dd if=path-to-iso of=/dev/sdX command but I want to do it more "manually" (just to learn how the things work ;) ). ...
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2answers
78 views

Linux root access recovery by booting on the console

This is my first question so bear with me please. So I have a concept in mind that I can't quite grasp. Very recently I recovered a root password for a Debian server by booting into single user mode. ...
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2answers
49 views

Mount root filesystem from initramfs

It's a common scenario. For whatever reason, the initramfs (OpenSUSE, in case it matters) has failed to find the root filesystem, so it drops you into a rescue shell. I know perfectly well what device ...
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1answer
39 views

How to select a boot disk wie pxelinux

I’ve configured a computer with pxelinux and I am able to boot from DHCP/TFTP. I can receive the bootloader and then boot from a local hdd or ssd. But I want to choose with the bootloader from which ...
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28 views

Fedora 23 black screen after update

I've installed fedora 23 xfce desktop on my laptop few days ago and it worked like a beauty. After few days i did sudo dnf update. after the update i couldn't change the wallpaper so i restarted my ...
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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 ...
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Edit grub timeout in encrypted lvm setups with /boot partition?

My old setup was LVM with Ubuntu 16.04. Disk had a GPT table with a BIOS-grub and a main partition. I was able to change the grub timeout by editing /etc/default/grub, commenting out the two ...
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Any issues with restoring from a setup with GPT and BIOS-grub partition to one with MBR and /boot partition?

I had a non-nencrypted Ubuntu 16.04 setup using LVM2. I 'ported' this over to a fresh encrypted lvm setup on the same computer and disk, which saved me the hassle of reinstalling all the apps and ...
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Boot-Repair hangs, possible alternative?

My overall goal is to dual boot Linux Mint and Windows 10. The motherboard is legacy bios only. Firstly I installed Linux Mint then Windows 10 on a secondary partition. Because I forgot to make a ...
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1answer
21 views

Skip Arch Linux Login Screen on RPi

(Migrated from RPi Stack Exchange:) I want to use my RPi to run a non-terminating executable as a pseudo-OS. Ideally, my Pi would run Arch Linux or an equivalent, but skip Arch's login screen and ...
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40 views

Cannot boot GRUB bootloader just shows 'GRUB' with blinking cursor

When I boot normally (or try to boot from a USB), all I get is GRUB with a blinking cursor. No command works, even CTRL-ALT-DEL. If I try to boot from a USB/DVD, I get the same error more or less. ...
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Error happens during booting from disk image

Today, I met an error during booting my computer. I did following steps. Run sudo dd if=/dev/xvda of=/media/dummy/disk.img to generate the image of current root file. Modify /boot/grub/grub.conf ...
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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 ...
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Ubuntu not booting

I have ubuntu 14.04 with Windows 10. It gives the purple ubuntu screen on start up. If I go to the recovery mode and then resume from there, I go on to the login page where it gets into a login loop. ...
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1answer
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Bluetooth BNEP takes a long time to load on boot Debian

My system takes a long time to boot and looking at dmesg output I found an entry with BNEP (Ethernet Emulation) ver 1.3 that takes around 27 seconds to load. Does anyone have a clue on how to speed ...
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1answer
20 views

Add parameters to NFS mount

I try to start Android on device via NFS and TFTP. Everything goes good until Android system starts booting. Something happens with network parameters and connection falls and boot freezes [ 60....
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1answer
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Hash sum of partitions that haven't been mounted changes every time after a live usb run

I have a Live USB with puppy linux on it. Here's menu entry in Grub2 for Puppy: menuentry "Puppy Linux 6.0.5 tahrpup" { insmod ext2 search --no-floppy --fs-uuid --set=root 0641378e-...
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1answer
34 views

UEFI firmware resetting bootorder

I am trying to boot Fedora 23 that I have just installed on a laptop, replacing Windows. I just can't boot it. I kept the UEFI boot partition but replaced all the other partitions with Linux ones. The ...
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1answer
25 views

How to empty trash on boot partition

I had deleted some old kernels a while back to make space on my boot partition (using elementary os), but now I realize they went into the trash-0/files folder on the boot, I tried opening sudo ...
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After the installation kali linux in VMware workstation 12pro

After the installation kali linux Boot screen appears But does not start Remain silent....
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60 views

Why do we need initramfs and initrd

I understand the purpose of the this concept. For example we have exotic file system on the disk and in order to load system we need mount root filesystem. But we cannot because there is no suitable ...
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2answers
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How do I specify the programs that I want to run when the computer boots ? [Arch]

I am currently using Arch with the GNOME desktop environment. I do not know where to specify the programs I want to run automatically when the computer boots. If there are multiple methods (GUI or non-...
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2answers
56 views

Why do I need NFS for PXE booting a linux os?

I have created a Raspi PXE boot server (DHCP/TFTP) in order to boot IPCop on a computer and it works fine. I have not used NFS technology. I have read many posts about PXE booting with NFS but I don't ...
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1answer
25 views

Mounted devices when using dd to create USB device boot image

I have read that when creating a USB boot image with dd, the USB device should not to be mounted. Can somebody explain to me why not? I am very confused please help me out.
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Upgraded Fedora 23 won't boot to graphical login - only brings up text terminal

I upgraded from 22 to 23 with fedup and after updating, cleaning, and rebooting, all I get is the terminal. My older versions, including my rescue, won't boot. Any ideas?
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2answers
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Is it possible to configure hibernation to be safe to use in a single OS, single boot, with multiple kernels or system “snapshots”? [closed]

This is my third question in a day about hibernation, after the one about hibernating in a dual boot with shared swap, and another about hibernating in a dual boot with a shared writable partition. I ...
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1answer
22 views

Debian boot partition on USB stick, when and how to mount

I have an installation of Debian whose boot partition has been placed on an ext2 formatted usb-stick. Please correct me if I'm wrong, but I believe that in most situations, the usb-stick should not ...
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2answers
25 views

@reboot jobs don't work

I have been trying to make my fedora pc do a little script at reboot but i can't get it to work. My script works perfectly, for example if it's 02:10 and inside crontab -e I write 11 02 * * * /path/to/...
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1answer
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Arch Linux on UEFI won't boot

I've followed the Beginners Guide to installing Arch Linux on my laptop. When I boot, I get the EFI boot menu, but when I select Arch Linux I get this error: Kernal panic - not syncing: VFS: Unable ...
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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 ...
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0answers
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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-...
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1answer
40 views

How to change the color of boot logs in Debian?

OS: Debian Jessie (8) How can I change the color of all the logs and text during the initial boot (and also the final shutdown) to black? (including the login user/password prompt) !? My goal is to ...
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How to hide boot messages (silent boot) in debian jessie (raspberry pi)?

I'm working with raspberry pi. Previously (debian wheezy), I used the following codes to hide boot messages and have a silent boot, until a code (playing omxplayer on loop) would run from /etc/rc....
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55 views

BusyBox on persistent USB Livesystem

I fiddled a bit with creating a Live USB stick for creating a LFS system on my new computer. To make this easier I wanted to store some persistent data on it as well (settings, GCC, make and such ...
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Installing Ubuntu alongside Windows 10

I want to install Ubuntu alongside of Windows 10. When I boot the system using a Ubuntu DVD or bootable flash memory I immediately get: error: timed out waiting for forcewake to ack request and then ...
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0answers
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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 ...
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1answer
27 views

Remove grub menu animation

I'm not sure if it's supposed to be that way or if it's a bug, but I'm forced to watch my Grub menu screen sloooooowly build itself. I have to watch it draw the lines around the menu like it was a C64 ...
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2answers
66 views

Send my IP to remote server every time booting

I want to send my computer's IP automatically every time it boots. I edit /etc/rc.local sleep 10 ifconfig > /tmp/myip scp /tmp/myip <server> exit 0 I tried, and there is no inet addr, ...
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1answer
53 views

What is the proper way to use ISOLINUX with UEFI?

I've been trying to add UEFI support in the 64-bit version of Minimal Linux Live for quite some time, unfortunately without much success. As you can see from the below image, I get critical error each ...
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1answer
59 views

Custom kickstart install completes but machine won't boot

I have been following the instructions on using kickstart to create a custom install at : http://www.smorgasbork.com/2012/01/04/building-a-custom-centos-7-kickstart-disc-part-3/ I got an unattended ...
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XBMCBuntu is not starting up to desktop

I am running xbmcbuntu for a few years now and everyting worked fine so far. Recently, I've installed a new hard-disk and made a new partition (sdc1) on it. Now, unfortunately, XBMCBuntu is not ...
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Install GUI for debian

I did many manipulations when trying to install NVIDIA driver on my debian machine, without success. I've deleted everything related to debian's GUI (x11-common, xorg, gdm3, gnome, gnome-shell, ...
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How to change grub boot menu on a (formerly) live linux system?

So I converted a usb live linux install (Tails) from USB to virtualbox using VBoxManage convertfromraw. For it to boot in virtualbox, I need to remove one thing from the boot commandline (live-media=...
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Fixing Kubuntu from LiveCD

After uninstalling some programs on Kubuntu 14.04 today, my system crashed and after restarting I can not get past the pulsating Kubuntu startup logo. I believe that while uninstalling the programs I ...
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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, ...
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1answer
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Whence does systemd determine the transient hostname?

In RHEL 7.2, systemd starts up and determines the host's hostname. If /etc/hostname is unavailable (ie, removed), and /etc/machine-info is unavilable, and the kernel is not configured with that ...