Questions tagged [boot]

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

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Can't boot from encrypted disk after deleting swap-memory partition [issue]

I can't login anymore into my encrypted disk. After writing the password: error: no such cryptodisk found. error: disk ‘cryptouuid/HEXstring’ not found. Entering rescue mode… intuitively that string ...
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Locked out on disk encryption

I bought a Darter Pro laptop from System76 2.5 months ago. Today all of a sudden I got the "please unlock disk cryptdata" prompt. I rebooted the box many times before and never had this prompt. At ...
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1answer
73 views

mtdparts arguments seems ignored by linux kernel since Buster upgrade

Running Debian on my NAS for years. Vanilla Debian with linux-image-kirkwood/linux-image-kernel. Bootloader is u-boot. With Debian Stretch (4.9.0-11-marvell) it was fine : u-boot handed the parameter ...
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220 views

can't access tty; job control turned off

I was doing some application updates and suddenly the PC crushed. After I relogged Im getting this: Also on this screen i cant type anything with the keyboard. I read some other similar threads like ...
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1answer
99 views

Slax don't init from HDD

I installed Slax version 9.11.0 on a Positivo Mobo S7 netbook. If I boot Slax SO from USB, the Slax init correctly, but if I boot the same system from HDD the system init in text mode and the ...
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1answer
23 views

How to boot el6 linux without some enabled daemon running?

I've installed Oracle Linux 6 and Oracle 12c. I don't remember if I've configured crontab to launch some script or not, but during the system's booting, it stops just after crond daemon has been ...
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2answers
394 views

Removed both Linux installations, but BIOS still shows them in boot options

I dual booted Linux mint with earlier installed Windows 10 on my HP Pavilion 15 by selecting option something else in installation and then creating two ext4 drives for root and home. Recently I ...
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1answer
48 views

Does only /boot have to be on a bootable partition?

Normally I know that /boot on (modern?) Linux is simply part of the main / partition, however I'd like to have /boot on a small partition by itself, is this possible? I.e. I want a small partition ...
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62 views

How to make PC ask for which hard-drive to boot from, every time you turn on PC?

I have partitioned Linux in one hard-drive, and windows in one. I want it so every time I turn my PC on, it asks for which hard-drive I would like to boot from instead of having to press the F short ...
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15 views

Using sync command upon startup

I'm using linux 4.1.8 32bit (yocto env) on an PPC embedded system. On each startup the init process (systemV init) performs mount to a 15GB ext4 fs (nand flash). Later (still by the init process and ...
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How to enable snapshot boot in Linux/Android?

I want to reduced boot time of linux/android, I read many article, its only possible with snapshot/quickboot in linux/android. Please let me know how to enable snapshot boot in linux/android ?
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1answer
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How can I triage slow userspace boot time?

I am experiencing extremely slow userspace load time compared to the kernel loading time, as it can be seen in this systemd-analyze: jnavarro@almanzora:~$ systemd-analyze Startup finished in 14.134s ...
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Occasionally long boot after ext4 mount

Linux 32bit 4.1.8 kernel , PowerPC , embedded , real time patch , systemV init. I had an ext4 file system mounted at /run/media/mmcblk0p1. I unmounted and erased it and then recreated it: 1) fdisk ...
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1answer
51 views

grub2-mkconfig not using /etc/default/grub?

I'm trying to add a kernel option "xxx" by adding it to the existing GRUB_CMDLINE_LINUX="xxxx crashkernel=auto rhgb quiet" line in /etc/default/grub, but after doing so, when I run grub2-mkconfig –...
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1answer
277 views

Arch Linux looks for /boot/efi when already booted

I have a dual boot Arch Linux and Windows. After a Windows update, my GRUB got lost and system was booting to grub recovery. From there, I managed to point GRUB to Arch Linux and boot it. However, it ...
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Why is pxelinux not able to load files nested deeper than the tftp root directory?

Whenever I try to access, for instance, a kernel file from within the root of the tftp server. In my case /tftpboot. So something like the file /tftpboot/vmlinuz, pxelinux happily loads the file. ...
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1answer
197 views

file /proc/cmdline is empty

I'm having a problem to boot my system, because the initramfs which should get its values from /proc/cmdline, such as the root device, isn't able to obtain any value, and that's because this file is ...
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40 views

GRUB loads always windows in safe mode [SOLVED]

I've installed Fedora 31 on a notebook with Windows 10, GRUB shows me different options on boot, and when I choose Windows the system starts but always in safe mode. I have no options to load Windows ...
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20 views

Booting hard disk images from the hard disk with GRUB2

I'm trying to boot a Windows 95 image from my hard disk with GRUB2 and memdisk. The system boots up, but then it throws an 'out of memory' error. My system has over 8GB of RAM. There is still plenty ...
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24 views

How do I change the boot text?

So after GRUB and before sddm I see: Starting version xxx.xx-x-arch /dev/nvme0n1p2: clean, xxx/xxx files, xxx/xxx blocks How do I add another line of text under them? Like via echo or somehow? My ...
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1answer
16 views

Execute process with “low” priviliges inside shell with inittab

My goal is to modify the /etc/inittab file in order to execute a spesific program with minimal or customable permissions in an interactive shell with job controls enabled and once it will be ...
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1answer
52 views

dual boot problem linux, windows 10

I have a bootable harddisk with Windows 10. I added a second harddisk and installed centos 8. Both boot well if they are connected separately. I boot into the disk with centos installed and would like ...
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1answer
31 views

USB Boot Client for PXE

Trying to find an image of a bootable USB stick with a client for Netboot, once the PC which would to receive the installation doesn't have PXE access in its BIOS, while the tftpd-hpa server is ...
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1answer
62 views

Specification of efi-directory and device in grub-install

I have this layout of my USB flash disk: +---------------+ +----------------+ | | | | | EFI partition | | data partition | | | | | +------...
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Arch NetworkManager slowing down boot

I have a problem with the NetworkManager. I have installed Gnome on Arch, but when I try to boot, it loads about 2min to show the login of gnome. After disabling the service (NetworkManager), gnome ...
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Custom Service Causing Boot Errors

Have not seen any post about this but it is possible I am searching for the wrong thing. My current specs are using a Raspberry Pi 3 B+ on the Stretch version of Debian. I am working on a service ...
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88 views

Pulseaudio detects aux jack plugged in, but no sound plays

I have Manjaro installed on my Asus laptop, whose soundcard is Realtek ALC668. It's not a fresh install, I've had it for about half a year. During normal operation, I can switch between the aux port ...
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40 views

Ubuntu 16.0.4 laptop boots to GRUB 2, cannot find root device UUID

I have a Dell Precision 5520 laptop with Ubuntu 16.0.4 installed. I left it turned off for a year, and when I recently turned it back on, it first shows booting in insecure mode, and then it shows a ...
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1answer
210 views

How can I edit root /etc/fstab after boot failure in CentOS 7?

After an incorrect record was added to /etc/fstab, CentOS is, expectedly, failing to boot. I've been looking around and found a lot of different solutions but I'm unable to resolve my issue. When ...
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248 views

Debian slow start after upgrade - Gnome/Wayland issue ? (Debian GNU/Linux bullseye/sid - Gnome 3.34.1)

After upgraded my Debian testing few weeks ago, I realise that my boot take 1 minute more to show login screen. 1 minute is a timeout during boot. I did'nt notice that before because I always use ...
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My SSD has unexpected inconsistencies showing up after some time of usage

I have Ubuntu installed on my Kingston SSD. 4.15.0-55-generic #60-Ubuntu SMP Tue Jul 2 18:22:20 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux The system itself is quite smooth, but I have a major data ...
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1answer
61 views

Which directories can be on a different partition outside of root?

This question has surely been answered somewhere else but I'm having trouble finding it. I'm in a situation where I'm moving my root file system from a Debian install off of a hardware RAID and onto ...
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2answers
530 views

“Calgary: Unable to locate Rio Grande table in EBDA” <- what does this mean?

When I boot my system, I get the following message: [Sat Oct 26 20:34:25 2019] Calgary: detecting Calgary via BIOS EBDA area [Sat Oct 26 20:34:25 2019] Calgary: Unable to locate Rio Grande table in ...
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1answer
88 views

Linux Kernel Path and compression

I'm trying to find the Linux kernel path to find out what kind of compression it uses in a industrial Raspberry Pi. I'm running the command cat /proc/cmdline and get the output: dwc_otg.lpm_enable=0 ...
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1answer
30 views

What is the rescue boot option in RHEL7?

I installed RHEL7 using vmware and at some point two boot options appeared, one of them appears to be a rescue option (second in the image). What is this option and how can I remove it? Should it be ...
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2answers
185 views

How to hide blinking text cursor in GRUB (boot)

I use this setting, but still see cursor before launch plymouth in debian 10 RUB_CMDLINE_LINUX_DEFAULT="quiet loglevel=0 splash"
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Ubuntu Corrupts BIOS on Ryzen 3000 Machine

I have a PC with an Asrock B450M Steel Legend motherboard and a Ryzen 3700X CPU and I occasionally boot Ubuntu from the live DVD. Unfortunately it looks like Ubuntu is corrupting the BIOS though. ...
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2answers
29 views

During boot my ubuntu box switches into graphic mode, but there is no window manager installed. How can I disable this?

Grub gives me two options, boot Ubuntu and boot Ubuntu Rescue Mode (or something alike). When I boot Ubuntu, I get to the point where dmesg gives green timestamps, but just before a login prompt would ...
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1answer
430 views

Hide login console when load lightdm in Debian 10 Buster

I do debian minimal installation (no desktop on install), then add openbox, lightdm apt-get install xorg openbox lightdm plymouth plymouth-themes Also i hide grub menu and boot log messages. For it ...
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1answer
42 views

During Linux installation, where does the escape key take me?

When installing Linux (CentOS 7), a guide instructed me to press TAB or ESCAPE to enter a CLI with a boot: prompt, to learn about booting with kickstart. I'm just curious, is this CLI prompt GRUB2? ...
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2answers
520 views

Virtualbox Linux Mint boot black screen with blinking line

I'm trying to install Linux Mint (Cinnamon) in VirtualBox. I have set up the machine and .iso, but when it boots it just shows a black screen with a blinking horizontal line. I had a similar issue ...
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2answers
246 views

How is the “command line” passed from the bootloader (grub) to the kernel (linux)?

Grub (or other) sends command line arguments to the linux kernel, to modify certain parameters. If I wanted to go in and see this information, before the kernel is up (and potentially modify it), ...
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1answer
301 views

Black screen on boot

I recently installed Arch on my laptop, and I've been having a problem booting. After the grub screen, it loads up until it says "Reached target Graphical Interface", and then it gets stuck on a black ...
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1answer
31 views

Can't run Linux with home partition on removable hdd

I have a Linux installation with boot partition on internal laptop ssd and home partition on an external removable hdd. Since the first time I removed the HDD and booted Linux, I am unable to make ...
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0answers
50 views

Failed to recognize HDMI cable and purple screen Ubuntu 18.04

I am using notebook with the following specifications: Intel i7-8550U AMD radeon R7 (and Intel Integrated Graphics 620) Ubuntu 18.04 (dual boot windows) When I plug a hdmi cable nothing happens. I ...
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95 views

Memtest86+ won't boot from USB, hangs on GRUB (via Arch), but works on Ubuntu Live USB

I recently ordered some server/workstation RAM that I wanted to test*, but the well-known memory testing methods are giving me a hard time. The only installed OS is Arch Linux. The machine is 13 years ...
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2answers
31 views

Mounting temporary swap partition on boot

I bought some SanDisk 16GB U100 SSD's off of eBay and discovered that they had a peculiar problem; they act like RAM in that they can be partitioned/formatted/etc., all test come back positive, and if ...
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30 views

Laptop does not resume from hibernation

So the hibernation in OpenSUSE Tumbleweed seems to work on my ThinkPad P73 laptop, but only in one direction. When I try to resume from hibernation, the laptop only boots like I rebooted it without ...
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1answer
112 views

GRUB2 is unable to detect a fresh Fedora intstallation

I have recently installed Fedora 30 using the default installation process, using a media drive to first try out a live version of the system and then installing to a drive. I have Ubuntu and Windows ...
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0answers
211 views

How to resolve “A start job is running for /dev/disk/by-id/…” on boot?

After I cloned my smaller Linux disk onto a larger disk and put it into my computer and booted, I started getting the message A start job is running for /dev/disk/by-id/INTEL-...160{...

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