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

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What does am335x-pru0-fw do?

When I boot my BeagleBone Black I get the following error. What exactly does this mean? What is am335x-pru0-fw meant to do? Kernel Version: $ uname -a Linux arm 4.1.15-ti-rt-r40 #1 SMP PREEMPT RT ...
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1answer
23 views

Fedora doesn't boot since 4.5.7-202: grub shows only a blinking cursor

I have a Thinkpad 460s with dualboot: Fedora and Windows. I am using grub2 as a bootloader. 4.5.7-200 boots fine, but 4.5.7-202 and the newly released 4.6.4-201 doesn't boot up, grub shows a blinking ...
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1answer
62 views

<Solved> How to shrink, clone an entire Linux disk and boot it?

I had an Ubuntu 14.04 running on a 1024 GB disk (disk A), which only used up to 130 GB spaces. I want to clone it to a 256 GB SSD disk ( disk B ). But failed. I used gparted to shrink the partitions ...
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1answer
12 views

Resource for understanding Beglebone Black boot process with systemd [on hold]

We have BBB based custom Linux board running Linux 3.12 We are using SysV init, for boot, And I understand that boot happens in following sequence, ROM code looks for boot device based on boot pin ...
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10 views

Install Debian on G5 new drive 2nd stage boot

I have 4 old G5s and 4 old Powerbooks. I have installed Debian 7.1 on one of them and it gets stuck on 2nd stage boot (choose l for GNU/Linux, c for CD) We do not have the original hard drives (...
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1answer
18 views

Why is it taking so long to establish a LAN connection on boot?

I have an issue with a virtual machine taking time to connect to the local network on boot. I create a virtual machine using the following command: virt-install \ --connect qemu:///system \ -...
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28 views

Unknown runlevel on Ubuntu 14.04, services not starting on boot

I rent a VPS from a VPS company and run an Ubuntu 14.04 web server there. Recently it had to be suspended by my provider for a while. After the suspension period (1-2 days), the VPS boots, but cannot ...
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17 views

Marking TSC unstable due to check_tsc_sync_source failed

My dedicated server has been hanging it out (or just turning off) very often sometimes more than a day, apparently for no reason (according with the technical support department). After that, the only ...
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1answer
20 views

How does BIOS know which disk's MBR should it use? [closed]

Generally, BIOS will read the MBR in disk, but if there are multiple disks, how will the bios determine which disk's MBR should be read?
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0answers
30 views

Cannot boot; “failure reading sector 0x802 on hd0”

I recently installed Peppermint 7 on my pc. Everything was working as it should. I've been using it now for over a month. I turned it on today to find that it couldn't boot. It says "failure reading ...
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2answers
26 views

Can initramfs programs access all memory - do they run in real or protected mode?

This is in the context of current 64-bit processors and current linux kernels (I'm using 4.6.4.) Is it possible for me to write a program that during boot can examine base memory, 640k and under, ...
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0answers
14 views

device-mapper: table: 253:3: snapshot: Failed to read snapshot metadata

I used Clonezilla to restore a Linux system. After the system restore finished, the system failed to boot, showing the following error message: Reading all physical volumes. This may take a while... ...
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0answers
17 views

LMDE 2 boots to black screen but if I choose 'systemd' it loads normal

I made the unfortunate mistake of copying and pasting some stuff and now LMDE boots to a black screen. However, if I interrupt the boot process and choose the option with (systemd) at the end, it ...
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0answers
8 views

Getting error to install centos 7 from bootable usb

I am trying to install cent os 7 from bootable usb but it is giving below error, see screenshot Anyone knows what went wrong.
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1answer
36 views

After installing Manjaro, windows is not showing in boot menu

I was dual booting windows 10 and Linux Mint 17.3 Mate. Everythig was fine, I was able to dual boot. Last night I decided to install Manjaro Linux and I did so. After installing Manjaro, all I get in ...
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30 views

systemd underestimates boot time. How can I try upstart?

Sorry in advance if this is a stupid question, but I'm new to this issue and every time I google it, I just get comparisons of upstart versus systemd. Anyway, my Samsung laptop with Mint 18 is taking ...
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1answer
37 views

Black screen with blinking cursor after trying to boot Kali, Ubuntu, and Lubuntu live

I recently bought a Lenovo Thinkpad Edge 15 (Model: 031925U) on Ebay. The machine came with Windows 7 Pro 32 bit installed. I replaced the HDD with a 240GB Samsung 750 Evo. With a 2.4Ghz i3 370M ...
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Got only Microsoft reserved and Microsoft basic data partition ? How can I boot into Windows 10 from grub2?

I only got these partitions: Disk /dev/sda: 55,9 GiB, 60022480896 bytes, 117231408 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (...
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1answer
34 views

How to boot to and run Linux from Chromebook with removed SSD?

I have an Acer C740 Chromebook. I am not sure if this is a hardware or a software issue, but the Chromebook refuses to boot properly. The display powers on, but remains blank white with only the ...
0
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1answer
13 views

Ubuntu MATE LiveCD hangs during VirtualBox boot, weird screen displayed

I downloaded the Ubuntu MATE 16.04 liveCD, and when I booted it with VirtualBox, it hung, and displayed this screen: I modified it with my mediocre GIMP skills to make it easier to read If somebody ...
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34 views

When arch linux boots on my mac, I can execute commands, but the screen is completely black

I have tried to boot both ubuntu and arch on my iMac (21.5-inch, Mid 2010). Both seem to boot, for example ubuntu makes its little bongo noise, and I can type zsh commands when arch boots. But the ...
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29 views

Installing RHEL to multiple-boot with Windows and two other Linux distributions

Alright, so I made an earlier attempt to install RHEL 7.2 with automatic partitioning, and it turned into a mess since I have 3 other operating systems installed (windows + 2 Debian based Linux ...
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42 views

RAID-1 / LVM server won't boot after power outage

Strange issue. After an extended power outage (transformer exploded!) which outlasted the UPS, a server running Slackware 13 crashed. This machine has been quietly serving accounting software and ...
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My Macbook retina with Linux Mint out of battery, black screen on boot

I was using the computer when suddenly the power in the house shut down without me noticing. Then after a while when my computer shut down off battery loss, it now wont boot. Before it shut down I was ...
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2answers
242 views

What is zImage, rootfs

I am very much new to Embedded Linux. We use poky build system. We just use bitbake linux-imx command to build the kernel. It generates some files zImage, rootfs, uboot and also a sdcard image. We ...
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0answers
18 views

Failed Ubuntu dual-boot installation - GRUB errors 'failure reading sector'

I've been unsuccessfully trying to install Kubuntu 16.04 on my new laptop alongside W10, which it came in with. Now I did this twice already on different computers and was always successful and there ...
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1answer
45 views

CIFS mount through fstab not mounting at boot

Trying to auto mount two shares from my QNAP NAS onto my raspberry pi. QNAP NAS Shares: \\192.168.1.7\Disk3 \\192.168.1.7\Disk8 At the Raspberry Pi, created two folders: /mnt/shares/NASDisk3 /mnt/...
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26 views

Ubuntu freezes with second PCI GPU and cannot use it

Configuration is: Asus M5A99X EVO (IOMMU enabled, firmware flashed) AMD 64-bit processor PCI-E x16 #1, NVIDIA GTX 580 PCI-E x16 #2, NVIDIA GT 610 Ubuntu 16.10, amd64, LVM locked SSD The problem is ...
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1answer
25 views

Working dual boot system screwed up after booting from an external drive?

I have had a working dual booting fedora (23) and Windows 10 system (for quite a while). I was tinkering with an old computer and was using the above system to update a 32 bit Ubuntu system on a ...
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12 views

boot in legacy mode Dell tiano bios

I would like to boot from a USB storage device on my Dell XPS 17 with tiano bios. The problem is that I am in legacy mode and my PC seems to not support UEFI. I've created my USB key with the ...
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Execute file at /init before /sbin/init without an initial filesystem

Whenever Linux is booted using an initialramfs/initrd, it executes a file on the temporary filesystem at the path of /init before mounting the real filesystem and executing whatever is specified in ...
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0answers
5 views

Booting issue with Asus and ubuntu upgrade [migrated]

I am upgrading from Ubuntu 15.10 everything was going fine then the screen went black and then I got the UBUNTU loading screen. It's been stuck there. When I turn it off and turn it back on I get ...
3
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1answer
49 views

How to boot via grub2 rescue promt on UEFI system?

I installed Ubuntu 16.04 by booting from a USB, choosing "Try Ubuntu without installing", and then inserting another USB and directing the installer to install there. I told the installer to instal ...
0
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1answer
35 views

ubuntu not starting after update-grub

I changed the default kernel in /etc/default/grub and did update-grub. Now every time the system is switched on, it opens BIOS settings. It's not showing any boot menu.
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No root device specified error

I have created a LFS system by reading the book provided at the LFS website. I tried to create an ISO image of it using the tutorial provided here. Then I created a bootable usb stick using unetbootin ...
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30 views

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-...
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0answers
23 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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1answer
70 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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2answers
45 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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0answers
8 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
94 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
67 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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2answers
86 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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0answers
121 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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0answers
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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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26 views

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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0answers
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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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1answer
64 views

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 ...
2
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1answer
26 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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0answers
50 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. ...