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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Linux Authentication by Active Directory without joining to domain

I have a Win 2008 AD based network. I want to setup a few boxes with dual boot Win/Linux. How can I achieve to authenticate the users with existing AD in Linux? All solutions - I have found yet - ...
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2answers
1k views

Xen Server, Ubuntu VM increased disk size, now will not boot

Citrix XenServer 6.2 Running Ubnutu Server 14.04 It had a 300GB disk attached, using XenCenter I increased the disk size to 500GB, planning on using gparted to resize the partition. Now it will not ...
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2answers
3k views

Execute a script while boot up in RHEL7

One of my server reboots every sunday and monday morning, whenever the server is up I need to do a service restart. Actually I call a script to execute itself (everytime manually). What I want to ...
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1answer
149 views

rc.local, call commands sequentially (one after finishing the other)

I was expecting that in rc.local, If say I call program P1 in one line and then P2 in the following line, P2 would only be executed after P1 (on which it depends for successful execution). This is the ...
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1answer
144 views

Installing boot manager to a raw LVM physical volume

Is it possible to install some boot manager to disk with raw physical volume inside (i.e. no partition table)? I tried LILO and LVM volumes became inaccessible (due to LVM structures corruption). Boot ...
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2answers
468 views

Windows 2008 R2 Boot-from-SAN Migration Methods?

We are running Windows Server 2008 R2 Enterprise on a Cisco UCS B200 M3 blade server that is diskless. Currently, we are going through a EMC SAN lifecycle/upgrade. I need to perform this migration ...
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1answer
316 views

Single user mode boot stuck

I have an old Ubuntu box with an unknown root password. It boots fine in regular mode, but it gets stuck when booting to single user mode: For searchability, the last few lines are: Begin: Running ...
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1answer
314 views

Freshly installed CentOS does not boot from Dell's Perc H700 RAID

Installed a fresh CentOS 5.10 installation on RAID5 provided by Perc H700 Integrated RAID, however the system fails to boot. Checked the system via recovery CD, and noticed that CentOS 5.10 now uses ...
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1answer
154 views

Is there a way in winPE to continue booting from local hdd?

In a lot of linux distro installers or livecd there is an option to continue booting from local or another media device without rebooting the system. I can not find anything like that for winpe 5.1. ...
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2answers
2k views

Windows Server 2008 R2 with Mirrored Disk Booting to Black Screen

I've got a Windows Server 2008 R2 device with 2 disks formatted as Dynamic Mirrored disks booting to a black screen. Upon booting the machine goes through the standard checks and then gets stuck at a ...
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2answers
111 views

/boot partition filled - updates will not complete

my last update failed because /boot did not have room for the new kernel (or so I guess). Can I safely use rm to blow away the old vmlinuz.*-generic? Thanks
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1answer
1k views

Linux xen directly boot windows domu? [closed]

I have the following situation: got a new notebook with Windows7 pre-installed (sda1 with boot partition, actual OS in sda2), one physical disk (sda) created an extended partition (sda3), inside ...
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1answer
50 views

Auto starting rc at startup

So here are the steps i am following . So i add a conf file inside /etc/init.d/myconffile And then to get System start/stop links i have to use the command sudo update-rc.d myconffile defaults 99 ...
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2answers
321 views

Upgrade key not present?

I have a DELL PowerEdge R520. On boot, just after loading the RAID Controller, I get a weird message: "Upgrade Key Missing! An upgrade key was present on a previous power cycle, but it is not ...
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1answer
2k views

How to access a system with write permission after file system check fails?

I created three new partitions, but after a reboot, the system is being dropped to a shell: /dev/mapper/group-newpartition: clean, 11/655360 files, 276620/2621440 blocks [FAILED] An error occurred ...
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2answers
3k views

Can PXE boot of Hyper-V VMs be disabled?

Hyper-V virtual machines have the ability to PXE boot. Obviously, PXE boot raises some security concerns. The problem is, unlike a typical physical machine's firmware, there isn't an obvious way to ...
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1answer
108 views

Dynamic dependencies in systemd

I am trying to figure out how to specify dynamic dependencies for systemd that are specific to the current instance@. In the [Service] section I can use EnvironmentFile= to load in variables using the ...
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2answers
113 views

Boot to CD image over network [closed]

I have multiple diagnostics CDs that I want to avoid making twenty copies of for the sake of time and convenience. I figured a good way to do this would be to boot an image of the necessary CD over ...
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1answer
151 views

How to avoid PHP errors during server reboot?

I found a PHP error in my server log that says: [02:09:27 UTC] PHP Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[HY000] [2002] No such file or directory' in /var/www/...
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2answers
6k views

How to set systemd service dependencies?

During CentOS 7 system boot nginx start fails with the following error: 2014/08/04 17:27:34 [emerg] 790#0: bind() to a.b.c.d:443 failed (99: Cannot assign requested address) I suspect this is ...
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0answers
149 views

'Boot' folder was accidentally deleted from WinServer 2008 R1

Unfortunately, the 'Boot' folder in Windows Server 2008 R1 (not R2!) has been erroneously deleted. Now I'm seeng a message that Windows can't be started. Fortunately, I have a copy of the whole disk ...
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0answers
1k views

How to debug why systemd is idling and is not going on with the boot process?

I am trying to create a PV instance for AWS EC2. The template VM is based on CentOS 7, which is using systemd. The disk layout is two partitions: /boot (/dev/xvda1) and LVM2 (/dev/xvda2). The root ...
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2answers
5k views

FreeBSD 10 won't boot to ZFS root after power failure

While installing new hardware today, I involuntarily disconnected the power to one of our servers. This server is running FreeBSD 10 with Root-on-ZFS as offered by the installer. It has a total of 36 ...
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3answers
2k views

Is it safe to reboot a server open to the internet?

Specifically I have an iptables ruleset defined on a server running CentOS. Am I guaranteed / can I guarantee / how can I guarantee that when networking comes online (either at machine boot, or after ...
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0answers
183 views

Verify architecture of kernel file

Note: I am NOT interested in the currently running kernel, but on a kernel that I am going to boot and which is in a file in the filesystem. I am going to boot a new kernel. I have prepared grub.conf ...
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2answers
593 views

Server won't start. IPMI showing Blue Screen with Ubuntu Linux

I have a remote SuperMicro server that is failing to boot. It's located on a different continent and access is limited. I can get into the BIOS and do whatever I need to, but as it gets through the ...
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1answer
2k views

Can I PXE-boot a desktop PC into a Hyper-V VM? [closed]

I just started exploring Server 2012, and the Hyper-V features are compelling for my place of business. Here is the question: We have several computers around the facility currently running XP and 7. ...
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1answer
347 views

Where to install GRUB 2 boot loader?

I have: sda and sdb which partitions is forming mirror RAID md0 md1 md2 md3 During update process, I was prompted where to install GRUB boot loader - on sda, sdb, md's or all together? What ...
13
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2answers
1k views

Is there a way to create a “one-time” boot entry in grub?

I have the following issue: I have a small server (Debian based) to which I can connect remotely (VPN/SSH connection). Now I want to change some boot options (in fact I want to migrate my root file ...
0
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2answers
2k views

is it possible to run bootp/pxe server using dnsmasq without act as dhcp server

on my network its already exist a router that do dhcp, boot in this network i need to boot a diskless system that use pxe to boot from network, while the pxe server is using dnsmasq to serve O/S, but ...
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0answers
125 views

Copy EFI partition to new disk in Windows Server 2008 RAID?

I have the following RAID setup ( yes, disk 1 is failing :) ). I need to copy the EFI partition from Disk 1 to the unallocated space in Disk 0, in order to make it bootable. Does Windows provide a ...
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3answers
5k views

How to wait for network in a batch script when booting on Windows Server?

I'm executing a batch file with TaskScheduler "At system startup" on a Windows Server 2012 in Azure, and I observed that there's no network for 20-60 seconds after the start of the batch. Currently I ...
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0answers
569 views

EC2 instance with partitions for /boot as ext4 and root / as lvm possible?

I've been playing about with this for a few days now. I haven't managed to find an example of someone running an EC2 instance with the root volume partitioned to have /boot on ext4 (or 3 or 2) and ...
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1answer
1k views

Grub giving Error 2: Bad file or directory when I try to locate the kernel

I'm trying to boot a VM with grub-legacy and I'm getting a grub prompt. If I run root (hd0,0) it says Filesystem type is ext2fs, partition type 0x83, but then if I do kernel /TAB it says Error 2: Bad ...
5
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5answers
9k views

GlusterFS failing to mount at boot with Ubuntu 14.04

Previously I asked about mounting GlusterFS at boot in an Ubuntu 12.04 server and the answer was that this was buggy in 12.04 and worked in 14.04. Curious I gave it a try on a virtual machine running ...
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1answer
141 views

Did grub updating bring my server down?

I have an Ubuntu 12.04 server. Last night I installed a few updates using apt-get dist-upgrade, including grub, and rebooted. After rebooting, I couldn't boot into Ubuntu. I just get a big flashing ...
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0answers
521 views

Blank MDT 2013 boot screen on USB Deployment

I am attempting to do refreshes on some machines and on the bootup of a USB drive with a LiteTouch Image I get to the Microsoft Solutions Accelerators screen but I do not get a window for actions. I ...
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1answer
2k views

sed fix for BusyBox - boot fail unable to mount LVM

BusyBox why u no vi?! Summary: Ubuntu 14.04 Server after upgrade first boot, only boots to BusyBox v1.21.1 initramfs with "gave up waiting for root device" due to missing /dev/mapper/xxx-root as ...
6
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1answer
31k views

Bootrec /FIXBOOT vs Bootrec /FIXMBR

According to Microsoft here is what Bootrec /FIXBOOT does: "This option writes a new boot sector to the system partition by using a boot sector that's compatible with Windows Vista or Windows 7" ...
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2answers
6k views

VMware ESXi dual / triple boot on a test machine

Has anyone tried to setup a dual or triple boot (ESXi 5.5, Linux, Windows Server 2012R2) machine? This is for an app and controller card testing environment - at the moment we're dual-booting Linux/...
0
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1answer
439 views

WANem doesn't boot after install

I'm using WANem live cd (based on knoppix) to perform network bandwidth tests. In order to keep the current configuration, I've installed it on hard disk (using the gui installation tool provided ...
0
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0answers
102 views

Windows 2008 Server is not booting from primary mirrored disk

We have a Windows Server 2008 with mirrored disks (RAID 1). Disk 0 & Disk 1. Last week, Disk 0 failed so we replaced that with new one. Completed mirroring from Disk 1 to Disk 0 using Diskpart. ...
2
votes
1answer
164 views

How do I make certain images available when user selects certain boot image? [WDS]

I have a Windows Server 2012 R2 Installation that is used for everything under the sun including Network installation services. I would like to have the server offer certain images based upon the ...
1
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1answer
231 views

First Boot Script for variety of platforms

I'd like to make a firstboot script for CentOS 5/6 and Ubuntu 12.04/12.10/14.04. If possible, I'd like to use one method to trigger this script to run. From what I can tell, this rules out chkconfig,...
0
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1answer
1k views

Linux won't boot after install for Dell PowerEdge 2850 in SCSI Mode

I was successfully able to install CentOS 6.5 x86_64 Minimal from CD, and setup software raid during the install steps, after having set the Dell PowerEdge 2850 to SCSI Mode which enabled CentOS to ...
2
votes
2answers
2k views

How long does it take to reboot CentOS 6 server remotely? [closed]

I am renting a dedicated bare metal server running the latest version of CentOS. It's new and I haven't fully configured it. I updated the existing packages and rebooted the machine remotely using # /...
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1answer
313 views

RHEL boot partition size during auto-installation

We are installing some servers with same RHEL image. During the installation, all but one, have had no problems with a 250MB boot partition. The one server, after the installation has received boot ...
0
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1answer
252 views

Initrd and Initramfs

I have read about the differences between the two from stackoverflow. But I am still finding it difficult to understand tmpfs and the real advantages of initramfs over initrd. I find that on RedHat ...
2
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1answer
833 views

HP Proliant DL380 G3 not booting. Error “1611 fan 7 not present” after changing power supply

I inherited an HP proliant DL380 G3 some years back and it's been working faithfully as a games/web/build server. At some point during the past year where I haven't been using it the power supply ...
5
votes
3answers
6k views

IBM x3650 will not boot from USB

Hello serverfault community, and thank you in advance for your time. Summary: I have an IBM x3650, which I bought secondhand (eBay). I am trying to install and run VMWare ESXi 5.5 on it via a USB ...