Questions tagged [boot]

Booting is the initial set of operations that a computer system performs when electrical power is switched on. The process begins when a computer that has been turned off is re-energized, and ends when the computer is ready to perform its normal operations.

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boot block integrity verification failure [closed]

You have been provided access to a Compaq AlphaServer DS10L that you are told was running OpenVMS v7.3-2; the system is not running when you see it. Physical examination of the system shows that there ...
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Ubuntu-20 Installation on Lanner FW-7525 on Putty/TeraTerm

Aoa, Hello All I am trying to install Ubuntu 20 Server on Lanner switch FW-7525, when the installation is complete and when I reboot the device then the error occurs "Reboot and Select Proper ...
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How does linux know to mount / without /etc/fstab [migrated]

When /etc/fstab gets deleted/name is changed booting into the machine still works, in addition the root file system (/) is still mounted and on the correct storage device, how does it know to mount / ...
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Centos 7 - replace Perc 6i with H700

I've installed Centos 7 using a Dell Perc 6i using 1TB drives. I'm interested in replacing the 6i with a H700 to be able to use larger drives. I am looking to understand the process so that I can make ...
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Modprobe error at boot

I'm using LMDE4 with LVM on LUKS and recently I've been getting these cryptic error messages at boot: modprobe: module aes-i586 not found in modules.dep Volume group "lvmlmde" not found ...
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Windows boot delayed around 20 seconds for no reason [migrated]

My system summary is the following: AMD Ryzen 3100 CPU, 32GB DDR4 3200MHz RAM, Corsair MP600 SSD. I was on an Intel i5 4440 earlier and have recently upgraded. I was expecting that this upgrade would ...
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Boot screen stuck on “[ ok ] Started Crash recovery kernel arming”

I have a CentOS7 VM managed by Nutanix hypervisor that recently experienced a disk issue (dmesg showed "Buffer I/O error on dev dm-5, logical block 62133147, lost async page write"). After ...
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HPE ProLiant gen 10 in legacy boot mode does not see hard drives in boot order section

I have HPE ProLiant gen 10 server with 8 drives. If I use legacy boot mode, but there is nothing in legacy boot order setting. And server tries to boot just from the ethernet. I have installed grub on ...
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Docker daemon ignores daemon.json on boot

My Docker Daemon seems to ignore /etc/docker/daemon.json on boot. Similar to this question, I'm having some troubles telling the Docker daemon that it should not use the default 172.17.* range. That ...
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HP Proliant DL120 G6 Memory issue

I bought new RAM for my DL120 G6, but with it installed it does not boot. I thought it might be incompatible so I bought another batch of memory but same result. I get no display output and no ...
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position and override the default nftables rules

I recently installed Centos8 on a virtual machine to try nftables as a replacement for iptables. I installed it by choosing the full server with GUI option. With nft list rulset I have a long output ...
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Change NFS to use UDP instead of TCP

I have a Debian 10 machine using NFS, it is using TCP protocol and I would like to change it to UDP. This is output from the netbooted machine: mount | grep 1 10.10.1.1:/remotesys on / type nfs (rw,...
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QNAP TS-228 u-boot firmware

I am looking for somebody with a functioning QNAP TS-228 (32 bit; non-a version). I had a firmware upgrade gone bad and the firmware got corrupted. I have a usb ttl so I managed to connect to serial ...
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How to avoid “NBP is too big to fit into free base memory” after searching for boot device repeatedly?

I have some servers which can repeatedly retry searching for boot devices (local sata disk, usb stick, netboot) at startup until one is available. I have a netboot setup with iPXE as well. By default ...
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Proliant dl585 g5 counts ram then turns off

I recently aquired a proliant dl585 g5 server that I wish to use as a home server As I have been working with pcs for a long time the first thing I did after I had made sure it was clean inside and ...
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What's the most failsafe way to mount remote filesystems at boot?

I am tasked with managing a complex structure of Linux (CentOS 8) VMs and hardware, hosting among other things various SMB and NFS exports. Most of them are simultaneously servers and clients, of one ...
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Viewing boot in serial Console on GCP Compute Engine

I am diagnosing a boot process of a custom image on GCP Compute Engine. I am trying to figure out how I can view the boot from the serial console or anywhere else. This is all I see on the serial ...
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Potential Hardware Failure?

This may not be the place to ask, so feel free to point me in the right direction and delete this if need be. I've put together two Desktops before now, and am now attempting to put together my first ...
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OS boot failure and automatic reboot in a Sun T5220 SPARC server

I have a strange boot issue on a Sun T5220 SPARC server with Solaris 10. The last few changes I did on this server, for maintenance purposes were: to delete some old directories (definitely not ...
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What is the difference between “Kernel messages” and “Messages from the init system and the system logger”

In this blog, it gives a Recommended serial kernel parameters, PCs with video card. console=tty0 console=ttyS0,9600n8 It says Kernel messages will appear on both the first virtual terminal and the ...
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How to boot ZFS root filesystem after setting dnodesize = auto (making grub unable to read the disks)

I have a proxmox (v5.4 I think) installation on top of ZFS in a server with 6 disks. There are 2 pools: rpool in a mirror of two SSDs that has the proxmox root filesystem and some containers and zvols....
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How to move /boot and / to different disk

I have Debian server with multiple HDDs. /, /home/, swap and others are LVM Logical Volumes. /boot is on a small partition at the beginning of one of the physical HDDs. fstab uses UUID for /boot and /...
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Boot without nftables | Debian 10

While rebooting our newest strorage servers, we're experiencing a kernel error (probably) caused by nftables. Please see attached call trace: After configuring the server (incl nftables), everything ...
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Unable to switch os in dual booting [closed]

I got a new laptop ((Asus vivobook 14)https://www.flipkart.com/asus-vivobook-14-ryzen-5-hexa-core-4500u-8-gb-512-gb-ssd-windows-10-home-m413ia-ek582t-thin-light-laptop/p/itm8d1c44556be49?pid=...
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How do I stop snaps mounting during boot on Ubuntu 18.04?

Booting my very capable PC has become a fingers-on-chalkboard-grating slow nightmare because of snap. It's gone from 5-10 seconds to login screen after GRUB to now 30-45 seconds, sometimes up to a ...
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Supermicro stuck on boot

I have a server with X10DRL-i running dual Intel Xeon E5-2630 V3 and everything works great. Today I tried to swap both CPUs for Intel Xeon E5-2680 v4 but server is unable to boot - it is stuck on &...
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Google Cloud Instance Crashed - Same Attached Disk Crashes another instance when attached as secondary (unmounted)

I have a GCP instance that is micro, and I suspect it ran out of memory, It crashed and does not let me SSH into it, even through the web console on GCP. I create a new bootable instance and enter it ...
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Post kernel update: Only OVH's rescue kernel works - but why doesn't mine?

I just went through upgrading from Debian 9 to Debian 10 and I am having a weird issue. Probably not too weird to people that do more intensive sysadmin things, which is why I bring it here: During ...
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Can't boot DL360 with disk of other DL360 (raid1 with SmartArray)

I would need some help on a topic I don't really masterize :) I have a Proliant DL360 G9 (server1) 2 disks in Raid1 (disk1 & disk2), using HP SmartArray My server went KO, and I used another ...
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Where is the System maintenance switch on HP ProLiant dl360 Gen 7

I can not understand which is a possible switch, I could not even see pins. Please let me know if I am missing anything.
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System not booting up on replacing cmoss battery [closed]

I have HP ProLiant dl360 Gen 7 server, after I replaced cmoss battery I am seeing blue screen. Please let me know if anything needs to be done on replacing the cmoss battery.
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Booting from CD-ROM image with HP server in UEFI mode

I have a ProLiant BL460c Gen9 server, on which I want to install my OS with UEFI mode. After I changed the boot mode to UEFI and disabled secure-boot and tried to boot my Centos7 Image from CD-ROM ...
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zfs is mounted after mongod starts: how do I set the boot order?

Fairly simple problem, I think, but I can't seem to get my head around a fix. I'm on Ubuntu 18.04.3 and mounting zfs volumes with mongo-data at boot correctly with the config below in /etc/systemd/...
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PCIe - Training error on device - Link degraded, macLinkWidth = x16, negotiatedLinkWidth = x8

i've placed a pcie raid adapter card with onboard ssd's (AORUS RAID ADAPTOR built in with 4 x PCIe 3.0 512GB NVMe SSD) in a new (2020) Dell (Optiplex 7080). the system boots fine most times, but it ...
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Oracle Linux server boot failure

I have an Oracle Linux 6.9 server which crashed and now it is failing to boot with the following error. Boot Failed - Hard Disk 0: Fv (CDxxxx-xxxx-xxxx-xxxx) / FvFiles(1Fxxxxx-xxx-xxx-xxx-xxxx-9-xxxx)...
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823 views

'quiet splash' breaks default Ubuntu 20.04 boot on Server version, not on Desktop

I'm aware that the internet is packed with 'quiet splash' kernel config issues regarding the boot process on several hardware sets, which generally leads to graphics issues that can be prevented with '...
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Google cloud instance won't boot

I noticed one of my google cloud computers stopped connecting to ssh, and when I looked at the serial log, it seems like its not booting up at all. I use the machine for rendering, so I thought maybe ...
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plymouthd killed by SIGABRT

I just logged into my CentOS 7.8.2003 box after doing a package-cleanup --oldkernels --count=1, yum update & reboot, and was presented with this message which I've never seen before: ABRT has ...
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After changing a system disk partition, system won't boot, goes into “Dracut Emergency Shell”; how do I get it to boot?

Background I had a new system that I'd spent a lot of time configuring the software on to perform all manner of services and then discovered the drive was potentially flaky. So I decided to replace ...
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329 views

Ubuntu 18.04 Live squash boot with PXE on multiple machines

I have set up a WDS PXE server that is able to install Windows and Linux operating systems in may different ways. The server is also able to live boot Ubuntu 18.04 Desktop squash files (official & ...
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Can a tablet device be used as a console to monitor the boot process of a CentOS/RedHat server?

Can a tablet device (e.g., Fire HD 8 tablet) be used as a console, to monitor the boot process of a CentOS/RedHat server? For instance, is it possible to connect a BlueTooth adapter to the tablet's ...
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Install Linux on a second disk from an already running Linux (RHEL 7.8) instance

I am trying to mount a second disk on a running Linux (RHEL 7.8) AWS instance, install a customized bootable Linux environment to it, and then change that disk to an AMI so we can boot new Linux ...
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570 views

Centos 7 server does not boot X64 Exception Type - 0D(#GP - General Protection) [duplicate]

I ran a yum update on a Centos 7 server that previously worked well, then tried to restart it with the command reboot. The server is a google cloud compute instance. It would not come up. The output ...
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Are there any issues with a large boot partition?

What is the recommended size for a Linux /boot partition? says the recommended size for a boot partition is about 300-500MB, which is congruent with my experience (running out of space with < ...
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973 views

how to convert acronis .tibx new format to .tib old format

Create an OS image in acronis 2020 with the new .tibx format. The problem is that this image cannot be dumped to an old computer since it does not support Acronis 2020 nor can I use old versions of ...
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CentOS 8 network on boot

I'm running CentOS 8, every time I reboot the network does not start until I log in to the system. I've checked the NetworkManager and the autoconnect is set to yes. connection.autoconnect: ...
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Virtualbox Centos 6 image cannot boot after adding a new partition

I have been preparing for a RHCSA exam and tried to create a new partition on my Centos 6 VM. I used fdisk /dev/sdb2 and created a new 200 MB partition there using the n command, and then saved it by ...
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Secure Diskless System - NFS as root

I've created a diskless Debian installation with root filesystem over NFS, and boot loader on a USB (this computer has issues booting from PXE for some reason). My setup is similar to the one ...
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Supermicro server hangs on boot with disks in HBA

I have a "homemade" Supermicro server with an X9D board in an 836 chassis that has two SSDs with freenas installed. It has a pass-through backplane, with 4 SATA HDDs running via the Intel C606 ...
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CentOS 8 keeps booting an old kernel

A CentOS 8 metal-bare server from OVH with a "boot from a local-disk" option enabled keeps booting an old kernel ignoring changes. I want to boot 4.18.0-147.8.1.el8_1.x86_64 kernel, and here is what I'...

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