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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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VMWare Workstation 12 : BIOS has corrupted hw-PMU resources (MSR 38d is 3) [migrated]

I have a Windows 10 host running VMWare workstation 12. I am trying to install Ubuntu 16.04 as a guest OS. Resources for the guest are pretty much standard. RAM : 8GB CPU : 1 Core : 2 Disk : 80GB ...
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Receving error message on boot up

I am using Linux CentOs 7. Had to reboot server and boot appears to be hanging on the following. Probing EDD (edd=off to disable)...ok I have read online several things and tried them with no luck....
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Reducing EC2 Boot Disk failed

I have an EC2 instance with a 500GB disk, which is way too much, as it only really needs 2GB. I followed this guide for reducing the boot disk size, creating a 10 GB volume. When I try to boot the ...
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Increase disk detection timeout at boot with Linux/Systemd

I have a machine with a lot of disks, and an extra SAS controller in HBA mode. This seems to cause Linux to think for at least 8-10 seconds once in initramfs before the disks actually appear. The ...
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1answer
27 views

How to read boot log in rescue mode?

I have a remote server running Ubuntu 16.04 server that hangs on boot. In order to find the error I booted it in rescue mode, mounted devices to /mnt and chrooted to /mnt. Here's what I did so far: ...
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1answer
41 views

How to debug boot process?

After power outage my server (Ubuntu 16.04 ) wont boot, and I can't understand why it gives me "Give root password for maintenance" message. I did fsck the root partition and it is being mouted in ...
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19 views

Giving Multiple Hostname in Kickstart File with Cobbler

I'm trying to set PXE boot environment with Cobbler for the High Performance Computing nodes. I need to install CentOS 7 for more than 50 nodes, so I would like to give each of them numerous hostnames ...
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Apparantly successful virt-install of Clear Linux cannot boot

First, I create a clear linux vm with virt-install virt-install \ --name CLEAR \ --ram 65536 \ --disk path=/guest_images/Linux_main/CLEAR.img,bus=virtio,size=450 \ --vcpus 8 \ --os-type linux \ --os-...
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1answer
54 views

GRUB2 Not Loading from MBR

I have a new computer that I have imaged using PXE. It loads a kernel, initrd and verifies if it needs to apply an image. If it does, it goes through some logic of partitioning (BIOS, non-GPT) the ...
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30 views

long boot times of Google Compute Engine windows instances when using custom disk images

I've configured a windows machine with all the tools and scripts that I'll need. Some of the script are places in shell:startup folder. I then created disk image and use it to replicate instance. ...
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87 views

I deleted all the contents of /boot and now server is not booting

I did something stupid. My thinking was that /boot directory is empty and contents come to /boot each time the computer starts. My /boot drive was giving me error messages no space left so I thought ...
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147 views

How to get the last boot up time of a remote windows server to which you do not have access?

Is it possible to get the LastBootUpTime of a remote machine (running Windows) if you have not been granted access to that server; though the server is on the same network, and same domain as the ...
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56 views

Software RAID 1 Failure

I have a software RAID 1 setup on CentOS 6.9 with two HDDs (SDA & SDB). SDB's smart self-test began throwing errors this week: Device: /dev/sdb [SAT], Self-Test Log error count increased from 0 ...
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Broken disk doesn't let the system boot. DRDY

The broken disk is a SSD, it is the only disk in this system. Suddenly it started throwing an error at the POST, see image: I researched for solution but it looks like, that as I said, the disk is ...
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1answer
30 views

VMware Windows 10 VM goes black

I have a Windows 10 VM where i wanted to reinstall VMware Tools. I removed it, restarted and then reinstalled it. After that the screen went black. I have tried things like: Restarting the VM ...
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1answer
511 views

Start OpenVPN at boot on Ubuntu 18.04

I try to start openvpn at boot on a machine running Xubuntu 18.04. I put my credentials of the service I use in a separate file and put the name of that file in the OVPN file as described in: https://...
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1answer
34 views

Two separate drive setup and getting cannot import 'xxxxx': no such pool exists

I have a simple freeNAS setup (FreeNAS-9.10.2-U6 (561f0d7a1)) that accesses two independent drives, no mirroring. Have not really accessed the system in a while and after a power loss I needed to ...
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1answer
169 views

DL580 G7 not booting / posting

I have two DL580 G7 and I cannot get any of these to boot. What happens is that the internal health LED flashes red and it displays all four CPU-LEDs in amber. There is no post code, exactly nothing ...
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kpartx does not enumerate partitions properly on Software RAID

When I boot my system, partitions on a software raid group are not being enumerated automatically. As a temporary fix I added the instruction break=mount in grub, so I can run manually kpartx -a /dev/...
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1answer
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linux/grub2: capturing boot errors for later analysis?

I'm running grub2 under my 4.15.0-30-generic x86_64 linux system. Every time I boot and select this system's entry in the grub menu (or any other system's entry), a screen or two of logged bootup ...
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143 views

Boot hangs at Stopping Mount network filesystems

I recently applied the latest updates on Ubuntu 14.04 server by running sudo apt-get update && sudo apt-get upgrade then restarted the server. Now it hangs on boot at this message * Stopping ...
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58 views

Get systemd actual state

How can we know if systemd has finished to boot the system ? I don't want to execute on cron job if the system is actually on boot process because of missing network connectivity. My script launched ...
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160 views

Supermicro server not booting with OS

We have purchased Supermicro X9DRi-LN4F model and installed Ubuntu 18 and during installation it finds the HDD and created partition and all goes well, but as soon as installation finishes and it ...
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1answer
60 views

Is there a way to override 'nr_hugepages' via boot parameters in kernel 2.6 (CentOs 6.8)

Set vm.nr_hugepages too high in /etc/sysctl.conf and the kernel panic during boot due to not having enough memory. Is there a way to disable this via a boot parameter in grub menu? Tried hugepages=0, ...
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Apply Customized Image after PXE boot

I am pretty new to DISM/WAIK etc. I am trying to implement pxe on my virtual machines (virtualbox), if worked fine later planning to implement in our production environment. I was able to deploy ...
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1answer
25 views

Serial over USB during boot

I am currently trying to debug the boot sequence of Xen, and past a certain point, the only way to do it is over a serial connection. Now, on the laptop I'm using there exists no serial port nor an ...
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1answer
56 views

ext4 corruption leading to unbootable disk. Partition is mountable, but grub detects unknown filesystem

I'm trying to recover from a system disk corruption issue without having to reinstall the OS, which would be super-painful currently. I'm using Ubuntu 18.04, the affected partition is ext4 and on a ...
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27 views

Windows failed to start error on cloud hosted Server 2016 after installing software

I am new to setting up Windows Server, so there is a small chance this may be my fault, but I have done nothing out of the ordinary, and this error has occurred twice after I installed software on the ...
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1answer
50 views

Unable to boot unexpected NMI at 0012:7AA3

I have an old IBM blade built in 2005. It is the HS20 blade. Currently, the boot screen of the blade is reporting a NMI fault at 0012:7AA3. The blade then fails at booting and restarts only to ...
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1answer
488 views

Wait before zpool import on Ubuntu boot

I have installed Ubuntu 18.04 on a Dell PowerEdge R720xd using ZFS. There are two 1TB boot drives in a ZFS mirror configuration. I followed the instructions in the ZFS on Linux Wiki. (Note: My system ...
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2k views

Dell Latitude 3490 - MDT results in “No Boot Device Found”

We recently got in a batch of a new (to us) model laptop, Dell Latitude 3490. Whenever I attempt to deploy Windows 10 (Education, version 1709 x64), I end up at "No boot device found. Press any key to ...
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1answer
48 views

ESXi license expired and broke my ubuntu install [closed]

I got my own ESXi server hosted at Hetzner, with some webpages etc. I was unable to access the sites, so I went into the ESXi mangement panel and can see that all my VMs were offline and I got a ...
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943 views

Ubuntu Server 18.04 taking very long to boot up

I've installed Ubuntu Server 18.04 as a VM to use as a web server and it's taking very long to boot up. During the booting process 100 seconds go by without any notice of what's happening and then the ...
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1answer
87 views

Ubuntu Server 16.04 tty console is out of bounds

After booting there are leftovers of boot logs in the console. It is always a fixed number of lines. In console mode with the resolution of 640*480 it covers the whole screen leaving the console ...
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1answer
294 views

VMware ESXi boots to black screen with only one text line: “usb”

After rebooting my server (Lenovo System X), my ESXi instance starts to boot and then hangs up after the Yellow/Grey screen. I have a black screen, with a white "usb" on top. I found similar issue ...
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82 views

Proliant ML330 G6, boot from ssd disk

I have a Proliant ML330 G6 with two discs in mirror Raid, with the P410 controller. It runs ubuntu 16.4, and it is working fine. I wanted to leave the raid, only as data files, and install a Samsung ...
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1answer
36 views

chmod o-x file system unable to boot

As per title, I changed system file permissions in root and I'm unable to boot. Stuck at loading login gui. Is there anyway to revert this? I am able to access grub command line. Thank you
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1answer
54 views

Linux: Rescue a system remotely after boot failure

Context I have two linux based servers which are remotely located. It has already happened twice: after a system or kernel update, the system wasn't responding/reachable over ssh anymore (...
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2answers
226 views

Asus P10S-C/4L won't get past Q Code 62 with Intel E3-1220 v6 and 8GB of DDR4 2400 ecc

Upon power up, the Asus logo appears on screen and the Q Codes change as it moves through the boot procedure until 62 is reached where it gets stuck and stays until I reset or power off. I have sent ...
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2answers
132 views

Centos 5.5 on Hyper-V 2016

I'm trying to install Centos 5.5 on Hyper-V 2016. The installation process passes correctly but when I try to boot newly installed system it stuck at the beginning. The only thing I can see is black ...
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0answers
37 views

Replacing hard drive that has partitions in both RAID 1 and RAID 0, and also contains /boot/ partition

I have inherited a system (Fedora 26) with the following setup: software RAID 1 (md127) between two disks (sda2 and sdb4 for lvm holding fedora-root and fedora-home). Additionally there's a RAID 0 (...
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2answers
102 views

Boot Drive Not Found

I just recently upgraded the coolers on my Supermicro server and now it can't find the default boot device unless I unplug ALL of the drives except the boot drive. This system is an older Supermicro ...
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1answer
180 views

Sun T5240 Server ILOM missing /SYS - can't get to boot OS

I've acquired a Sun T5240 that's supposed to be in good working order. I can't get the server to the point of booting/installing operating systems though. Logging into ILOM via serial (ser mgt port) ...
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1answer
274 views

Can't disable PXE on HP DL180 G6 and thus not install an OS

I bought a 4 bay version of the HP Proliant DL180 G6 with 2x Intel Xeon L5640 and 16GB of RAM. It also has 2 x 2TB SAS Drives in Raid 1 installed. Additionally I added a SSD which should later have ...
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1answer
141 views

Execute PCI option rom, Network Controller on B:06/D:00/F:00 (motherboard Z10PE-D8-WS ACPI BIOS Revision 3101)

I have a motherboard Z10PE-D8-WS ACPI BIOS Revision 3101 which stuck at this screen I have not added any news devices, just a night before shutdown the system using power button instead of "sudo ...
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1answer
171 views

Initramfs error after image restore using dd

I need to create backups of a Ubuntu system in a way that I can easily restore the data and system as it is exactly in a ready to go state. So, I decided to go with dd to create a whole HHD images. I ...
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59 views

Order of execution of rc.local, upstart scripts & reboot in crontab in Ubuntu 14.04

Can someone let me know what will be order of execution of a script if placed in rc.local or in /etc/init/ or as @reboot in crontab?
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1answer
52 views

Profiling start time for Ubuntu 14.04 [closed]

I want to know how much time is taken by Ubuntu 14.04 when we start it. So for this I have added the below line in rc.local awk '{print int($1/3600)":"int(($1%3600)/60)":"($1%60)}' /proc/uptime > /...
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1answer
162 views

How to create a recovery ISO (or DVD) for Proliant and/or PowerEdge Servers?

THE PROBLEM We've all been there. The server is toast. It's not booting and something seems really odd. Sure, there are recovery boot options with most operating systems and a collection of helpful ...
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1answer
29 views

What happens if two pass values of “1” are defined in /etc/fstab?

# /etc/fstab: static file system information. # # Use 'blkid' to print the universally unique identifier for a # device; this may be used with UUID= as a more robust way to name devices # that works ...