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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STOP: c000021a {Fatal System Error} The initial session process or system process terminated unexpectedly

I'm encountering such an error after expanding disk space on a virtual machine using Hyper-V. STOP: c000021a {Fatal System Error} The initial session process or system process terminated ...
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Cant run rc.local manually and doesn't run automatically on ubuntu

This is quite a simple one. I created an rc.local file here: /etc/rc.local I made it executable. However, it doesn't run when I boot the server. I can see it in the directory and when I try to run ...
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307 views

Error at booting server - ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen

I installed Debian 6 on HP server with hardware RAID 5 configured. RAID Controller Info 04:03.0 RAID bus controller [0104]: Compaq Computer Corporation Smart Array 64xx [0e11:0046] (rev 01) Kernel ...
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581 views

ESXi Cannot boot to ramdisk: boot image is corrupted

I've got an ESXI that's been running for almost 3 years fine. Yesterday, I upgraded the machine's bios, installed RAM and 2 additional hard drives. Today I added a Windows VM and changed the Gateway, ...
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174 views

Dell PowerEdge R510 SATA drives appearing as SAS

I have a Dell PowerEdge R510 with the following: PERC H700 2 x 500GB cabled SATA drives (RAID 1) 6 x 3 TB SAS hot swap drives (5 in RAID 6) I was testing an online expansion of the RAID array ...
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Network booting from PXE

I need to use a network boot server. However, the DHCP Server is pointing to the wrong boot image filename and server. I can't change the DHCP Server itself, since that is controlled by another ...
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no more address or address previously allocated by another server tftpd32

I am getting error Client requested address 0.0.0.70 [27/08 08:47:17.406] no more address or address previously allocated by another server [27/08 08:47:17.406] Rcvd DHCP inform Msg for IP ...
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756 views

How to Disable secondary drive from booting upon restart - Windows

I had a Windows 2003 Hard Drive on my server and it went bad so I installed a new clean hard drive and installed Windows 2008 R2 on the new clean drive. I moved the old 2003 drive to be used only for ...
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71 views

CentOS won't present login menu after a new service was defined

Yesterday I was trying to install Ganglia in my virtual machine. After I defined Ganglia as a service I reboot the machine, but after that CentOS won't present the log in menu anymore. I think it's ...
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363 views

Ubuntu / GRUB reboot loop

I had to shutdown a server due to a power outage... The machine's been working just fine, an Ubuntu 12.04 box. Now when I boot back up, I get the GRUB 1.99 boot menu with several options, all of which ...
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Booting root filesystem on LVM

I can't seem to make this work (or find info on the internet on the issue). Are there any additional settings when creating initramfs with the root filesystem on lvm? This should be the settup: ...
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432 views

Juniper J4350 out of order

I have got two (2) Juniper routers J4350 that are out of order : All the interfaces are down (leds on the interfaces don't ligthen, ping dosen't respond) No output on the console port (even when ...
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164 views

I'm stuck on choosing the right Linux bootloader for software RAID-10

I'm installing Gentoo on a SOHO server with 4 500GB Hitachi hard drives. I was able to boot from Live USB, created RAID-10 array /dev/md0 with the following command: mdadm --create /dev/md0 ...
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2answers
475 views

Linux - ran out of space on /boot directory - what can I do?

I stupidly put boot in its own partition of 228M space and now when I try to do an upgrade, it keeps telling me it's out of space. I tried to remove old packages but still not enough space. Is there ...
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125 views

cloning windows server 2008 OS drive to smaller drive using Robocopy

I'd like to clone a bootable OS disk using robocopy. The source drive is larger than the destination, but with plenty of free space. Is it possible, and if it is, what do I need to keep in mind to ...
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184 views

Upgraded to Debian 6.0.7 and server now does not boot

Today, I upgraded my Debian Squeeze installation of my vps to 6.0.7. It included a kernel upgrade, but I left the kernel upgrade last, after upgrading all the other packages first. However, now the ...
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407 views

Second NIC “not working properly” on diskless Server 2012

I've got (after a considerable fight) a diskless Server 2012 running via the MS software iSCSI initiator being booted via gPXE chained from the NIC's PXE. However, now that it is booting properly I ...
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488 views

Debian Wheezy No longer booting. Freezes after setting kernel variables

My Debian (Wheezy) server has been running smoothly for a very long time with no indications of any problems. I had it running 24/7 so it was always on. The other day my power went out and when I ...
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1answer
113 views

Add generic rescue kernel on Gentoo

I have a Gentoo machine (64-bit) with software RAID on boot which was set up previously by someone who optimised the kernel for that machine. Now I want to shift the disks to a new machine (also ...
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2answers
799 views

Ubuntu installer over PXE doesn't see network adapters => can't download preseed

I'm booting one virtualbox VM from another virtualbox VM (with cobbler) over PXE. Both machines have 2 adapters: 1) external network and 2) host-only network. The "client" VM successfully boots into ...
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88 views

Network filesystem won't mount at boot

We are running a lab network with a centralized file server. I recently installed Linux Mint on a new client computer and set up LDAP for user management and network folders through the fstab. When ...
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Fresh debian squeeze software raid install wont boot

I am following these instructions: http://www.iprobot.net/linux-tutorial/how-to-setup-software-raid-in-debian-ubuntu/ (I used debian-live-6.0.6-amd64-gnome-desktop.iso and DD'd that onto a usb key, ...
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Why does Windows in kiosk mode start the shell application so slowly?

I'm configuring Windows 7 Professional x64 to run a custom application as the shell, in "kiosk" mode. That is, replacing the default shell (explorer.exe) with my application and autologon as a ...
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Repair Windows 2008 boot

I have been caught in a loop where I can't boot up Windows Server 2008. When the OS starts to boot I am presented two options: Launch Startup Repair (recommended) Start Windows Normally No matter ...
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524 views

CentOS 6.3 drive encryption being on remove server

During the clean installation of CentOS 6.3, I choose to encrypt the primary partition / (the whole drive) (obviously except /boot). My point is to have fully encrypted drive (8 drives in RAID10) but ...
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Kernel panic - not syncing: BRKADRINT

One of the machines on the network started beeping continuously and was unresponsive locally as well over the network. We shut it down keeping power pressed. Upon reboot, the boot stopped with Kernel ...
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Fedora 5 booting Issue

I have an issue in my fedora core 5, installed in HP Proliant ML 150 server. Till yesterday it was working fine but today when I started this it gave me the following error: File system is ext2fs, ...
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175 views

using Linux as a bootloader?

I have an embedded device with a SPI connected flash. Basically this means the device boots its bootloader and Linux kernel from a small flash part. As the device boots, but before the root ...
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2answers
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How do I run a Debian init.d script manually, not at boot?

How do I stop an init.d server from running on boot, but still allow running it manually?
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90 views

Who do scripts executed from /etc/init.d/boot.local run as?

I have some lines appended to /etc/init.d/boot.local on a OpenSuse 11.1 server. They are some scripts I want run at boot. Who do these get execute as? In particular, I have one script that needs ...
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105 views

How is GRUB config is read before filesystem is mounted?

During Linux booting how is the contents of grub.conf read since the file system is not mounted yet?
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Lost Linux root password - Recovery mode and init=/bin/bash fail

I lost/forgot the root password to a server sitting beside me and am trying to reset it. I would rather not have to wipe and re-install or use a Live CD (server is running Ubuntu Server 12.04). What ...
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Boot another OS e.g. Windows *once* on a dual-boot machine

I have a dual-boot machine with Windows and Linux on it. It doesn't reside at my hand, instead , it's placed in the datacenter which I have to access remotely. For most of time, I work on Linux. But ...
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IBM Server takes a long time to boot past UEFI to OS

I have a pair of IBM System x3620 servers. These servers do fine once they finally reach the point where the operating system takes over, but it takes them forever to get past the new-fangled UEFI ...
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Find out which Group Policies take forever to complete at boot

I want to analyse which group policies are inflating the bootup time. What's the best way to do so? Something like gpresult including timestamps/periods would be really helpfull!
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263 views

Enable Dell PowerEdge 830 withoud CD Rom drive to boot unattended

I removed the cd rom drive from a Dell PowerEdge 830 Now it does not start unattended anymore. It boots normal, then halts at a line that says "strike F1 to continue, F2 to run setup". F1 would work ...
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Device imaging process Won't work first time

I'm having an issue regarding a disk imaging process. To get the machine into it's initial state, I first run a simple DISKPART CLEAN, and then restart the machine. . Diskpart sel disk 0 ...
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RTNETLINK answers: Invalid argument

When my system boots up it shows the following message. Bringing up loopback interface: [ OK ] Bringing up interface eth0: RTNETLINK answers: Invalid argument [ OK ] Bringing up interface eth1: ...
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320 views

Can I remotely boot from an ISO using KVM over IP

I have a dedicated server with KVM over IP and I was wondering if it is possible to boot up from an ISO that's stored on the drive or even somewhere stored online. I do not have access to the server ...
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How to make a bootable USB drive out of a bootable DVD or CD

Is there a "universal" way of how you can make a bootable USB drive out of a bootable dvd or cd? What makes a USB drive bootable? What makes a dvd and cd bootable? For example there is a program ...
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719 views

Update Grub on Squeeze - Kernel downgrade due VMware Server [closed]

I happen to run into various problems regarding grub and kernels. I don't really care about the kernel internas. All I want is VMware server in that dedicated root-server. 1.) What is a bzImage vs. ...
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1answer
407 views

How to disable the RAID in x3400 M2

Hi I just wanna disable the default RAID in my server IBM System X3400 M2 Server(7837-24X),i have 3 disk drives SAS. I want to make them a JBOD "Just a Bunch Of Disks", because I want to install in ...
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1answer
307 views

How do I recover from boot error when my root is on RAID and LVM? [closed]

When a (Archlinux) system that has its root on RAID and LVM is misconfigured and does not boot, what steps are needed to recover it?
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366 views

install boot with raid 1 in 3 TB disks

I'm trying to install /boot in a RAID 1 using 3 TB disks. As the RAID partition do not let you manage partitions than more than 2 TB, CentOS automatically configures the partitions using GPT. My ...
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HP ProLiant DL360 G5 fails to reboot

Some history of this also available here. As of my latest update on the forum linked above, now cold reboot as well as hard reset and following boot for my proliant dl360 g5 works as expected and ...
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messed up my server during upgrade lenny -> squeeze. Any hope?

The server is hosted by vpslink and running inside a xen-environment. During the upgrade somehow, besides other things, /dev/urandom got messed up, so I can't login via ssh because opensshd can't ...
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262 views

Which comes first, POST or BIOS [closed]

I'm sort of confused as to which comes first during boot up, the POST test or the BIOS. Some places say the POST test is a function of the BIOS, and that the BIOS initially loads it. Others say the ...
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How To Start NX/VNC Session At Ubuntu Boot Time?

I want an NX or VNC session to start automatically when an Ubuntu server boots up - without a monitor connected - loading a certain user's desktop and keeping it loaded and ready until I log in via NX ...
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82 views

Apache insists on starting on boot on CentOS

I have a CentOS server that came installed with WHM and cPanel and the corresponding LAMP stack. I disabled Apache and MySQL and replaced them with nginx and PostgreSQL. ...Or at least I thought I ...
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1answer
879 views

RHEL6 kick start fails with kernel panic - not syncing error

On a brand new (just unboxed) Dell Precision 7500 computer, I began a kickstart using a red hat boot disk and a kickstart file hosted at an http address. There is a picture of the full error below ...