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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Windows Server 2012r2 black screen after bootup logo

We had a recent power outtage and our VM hosts went down, today I see that the SQL VM which is running Server 2012r2 boots up, we see the Windows logo and then a black screen. I am unable to ...
2
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1answer
137 views

Dell BIOS Update Date

Is there a way to gather information as to when a BIOS on a particular server has been updated? I'm not looking for the BIOS release date, I'm looking for the date in which the bios was actually ...
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0answers
72 views

Unable to connect to linux server

I tried to connect to my Linux server as root via ssh, and then when it asks me for a password I get this error message : login:status code retuned 0xc00000b5 NT_SATUS_IO_TIMEOUT CIFS VFS:send error ...
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3answers
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mdadm Boot Error, incrementally starting raid array Ubuntu SErver 14.04

i build a small Server with Ubuntu 14.04 for Samba, I has one SSD Drive (the ubuntu installation is on it) and 2 3TB SATA Disk, the sata disk are combined to a Raid 1 with mdadm. Now sometimes (no ...
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1answer
1k views

pfsense live cd and boot options

I donwloaded pfsense live cd 2.1.3 and now I want to run pfsense from an usb cdrom drive. It loads a while and than crahses with "unable to mount ..." I know I have to choose boot option 3 in order ...
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51 views

Boot into operating system after clonezilla backup

I am working on an unattended clonezilla backup project. When the machine (re)boots, clonezilla is booted from USB (first boot device), the backup is being performed, and then the machine is shutdown ...
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227 views

Can't boot VM after P2V or ghost - Linux 2.6

I got this old machine that runs on a p2 400 and a Linux Debian 3.1 with kernel 2.6.8 and since it has modified binaries due to internal undocumented changes in the code, migrating off manually isn't ...
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2answers
991 views

Can we set ulimit in /etc/sysconfig/init file to apply the value at boot time

I need to have the ulimit value set at the boot time to all my services. I have values set in /etc/sysconfig/limits.conf but these values are not applicable during the boot time and it takes 1024 as ...
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0answers
128 views

How does virt-install create and persist and secure the boot disk?

Normally when i run virt install, I boot initially from the network, by installing from source, and also including a "--disk" option. The way i do it is described here ( in the "root" of this ...
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1answer
215 views

KVM: Machines unbootable after host reboot

Im finding that my KVM guests are unusable after i reboot my host. Specifically, I always get this error: Booting from hard disk Boot failed: not a bootable disk What causes this error? ...
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277 views

Force filesystem check on Ubuntu Server 12.04.4 LTS

My root filesystem has errors. I have made sure that errors will be automatically corrected: root@host1 ~ » grep FSCKFIX /etc/default/rcS FSCKFIX=yes And then forced a filesystem check during ...
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4answers
7k views

Inaccessible_boot_device after installing KB2919355 on Server 2012R2

I have a server 2012r2 machine that I just installed KB2919355 (the mega 800+MB patch recently released for Windows 8.1 and Server 2012). Server is a Dell Poweredge R715. Disks are 2x500GB SAS in ...
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4answers
819 views

How to restart Alcatel-Lucent OmniSwitch 9600

I need to restart/reboot an Alcatel-Lucent OmniSwith 9600. I cannot find the option to reboot the switch from the web interface. How else can I reboot the switch without pulling the power? I was able ...
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votes
1answer
2k views

Stuck at grub prompt after a default CentOS 6 installation

I am having a very strange problem installing CentOS 6 that I've never encountered before. I've followed these same steps thousands of times before, but within the past couple weeks I've had two ...
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votes
1answer
389 views

Terminal Server Licensing (per device) in a dual boot environment: 1 or 2 licenses per PC? [duplicate]

in our company I have a few computers that are already Windows 7 clients to a Windows Server 2008 R2 but are now supposed to receive an additional Linux installation as a dual-boot option. The ...
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1answer
2k views

startpar process left hanging when starting processes from rc.local or init.d

I have a peculiar issue when starting ongoing(service-like) processes from either full blown init.d script (SysV style) or a simple one-line call from rc.local file like so: su someuser -c ...
6
votes
1answer
393 views

Providing normal users(non-root) with initialization and shutdown auto-run capabilities

I'm hosting an experimental/testing Linux box, running Debian Wheezy 7.4.0 distribution. Different users log into the machine over ssh to their accounts and are allowed to run the development tools ...
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126 views

Cannot enable NMI Watchdog on HM65 Core i5

I'm trying to enable the NMI Watchdog on Linux on an AFL-12A-HM65 touch screen with an Intel HM65 Core i5 CPU. The user manual has an implementation for DOS (real helpful) but not for Linux. There ...
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1answer
300 views

Can't access my Sun X2270 Fire Server BIOS/ILOM

I just purchased two 2nd hand Sun X2270 Intel servers and i can't boot or access them. They have a Service Processor installed but i don't get any signal on VGA output. If i add an ethernet to the ...
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1answer
304 views

how to skip ntpdate synchronization during boot on centos

I moved a centos server to a new IP and now it's stuck on ntpdate synch during boot. I just need it to boot once so I can assign the new IP. Going back to the old IP is not an option right now. CTL C ...
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0answers
276 views

I am seeing error during boot sequence on HP ProLiant ML350p Gen8

The error states: Caution: Memory conflict detected. You may face boot problem. What steps would you recommend I take to troubleshoot this? Details: Dual Xeon E5 v1, two LSI 9286-8e ...
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0answers
79 views

Wrong PATH in init script on boot

Since the update of the System on my Synology NAS (x86), I have some problems with my startup scripts. The Bash scripts are stored in /usr/local/etc/rc.d. The scripts were executed for sure, because ...
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2answers
953 views

How much data does Linux read on average boot?

I wonder how much data in total does a freshly installed vanilla Linux system (like 32-bit CentOS 5.10) read in order to get to a virtual console shell prompt? You know, reading all the configuration ...
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2answers
399 views

No advantage from SSD boot drive for 24/7 server? [closed]

Since my OS and applications are loaded into memory upon boot, isn't there no advantage from having my OS on an SSD boot drive for a server that is kept up 24/7? I know there are several assumptions ...
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0answers
39 views

Ubuntu 13.04 instance crash: how to debug?

We're running a server on Ubuntu 13.04 which crashes quite randomly (the instance itself crashes, not the apache2 component). I've enabled # Run bootlogd at startup -> BOOTLOGD_ENABLE=Yes , but ...
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2answers
232 views

Find the reason of why does Sunfire V100 (SunOS 5.9) server not start

I have a Sunfire V100 (SunOS 5.9) server which was working fine till 14th February 2014. After that day we can not access this server. Today I was able to connect server through a console and I got ...
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3answers
116 views

Attaching SATA device disturbs boot order

I'm running a Supermicro X7DCA board in a NAS server. Whenever I plug in a sata disk the boot sequence goes out of order. This is a problem, because it is running headless. I've had this problem ...
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votes
1answer
62 views

Xen doesn't boot after install [closed]

I tried to setup Xen by the instruction released on the site of my hoster. I installed Xen, completed RAID setup as it is told in the instruction. Rebooted and succesfully connected to Xen from ...
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1answer
198 views

PowerEdge 2850 boot issue due to lost raid config

I have an older dell PowerEdge 2850 that has a boot issue when the server boots it comes up with the error pxe- e53 no boot filename received. I believe the raid card and memory where pulled and as ...
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2answers
4k views

Ubuntu 13.10 - How to disable LVM and cryptsetup? cryptsetup: evms_activate is not available

I am trying to remove whole drive encryption from my Ubuntu installation. I've run Ubuntu from Live CD, mounted crypt partition and copied it to another partition /dev/sda3. sudo cryptsetup luksOpen ...
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1answer
336 views

Why or who did reboot my server

One of our servers rebooted last night reboot system boot 2.6.32-5-amd64 Wed Jan 15 03:24 - 16:07 (1+12:42) Our hoster didn't do it, nor did I. syslog does not show any error Jan 15 03:17:01 ...
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191 views

CentOS hangs on boot after watches established

CentOS can not boot and hangs after Setting up watches. I saw the following in verbose boot. But It will boot into single user mode. CentOS 6.5 X64 any ideas to fix this please? Starting crond ...
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votes
1answer
72 views

ESXI cannot boot with external hdd [closed]

I've tried to make ESXI vm's to boot up automatically when a reset happened to ESXI host(HP dl380), and I've got an external H.D.D connected to it for backup purpose but the problem is that ESXI ...
0
votes
1answer
129 views

Unable to mount the file system from server to client while booting through network

I want a client which loads kernel and file system from the server through network. Till now, On server side, i changed the settings in /etc/dhcp/dhcpd.conf to get an ip-address to the client. After ...
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2answers
625 views

How do I fix my server to boot properly after removing / adding a drive on my mdadm software RAID

I configured a RAID-5 array for a data partition mounted on /mnt/data. My system is not booting on it (/ and /boot is on a dedicated drive not part of any RAID array). I added a 4th drive to my 3 ...
0
votes
1answer
468 views

LVM RAID 1 for root

I have LVM RAID 1 (not mdadm RAID 1, but exactly LVM2 RAID 1) for my root partition. I would like to make my system boot without either of the HDDs where the underlying PVs of the root LVM partition ...
4
votes
1answer
596 views

Slow boot and dns doesn't work

I don't understand what happened because i didn't change anything in system for quite a long time. Now system boots too slow and when it's booted - dns requests don't work. I can ping remote hosts by ...
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1answer
90 views

PXE Booting: Default boot file name?

When implementing PXE booting, is it necessary to specify a specific boot file in the DHCP options, or can you have a default boot file and so not specify that option?
2
votes
1answer
168 views

Why is my iscsi device causing my CentOS server to fail to boot?

The iSCSI mount I have attached to a CentOS server became unresponsive and caused the CentOS server to lock up. When the iSCSI server was repaired the CentOS server was rebooted, but even though iscsi ...
3
votes
2answers
5k views

How to remove old kernels on CentOS 6 (to free up boot partition)? [duplicate]

How does one determine which kernels to remove in order to free up some space on /boot partition. Here is a scenario (some background info). 1. Parititon info (in case it helps) # df -h Filesystem ...
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1answer
65 views

Understanding ARP traces during OS load

Consider the following ARP packets captured while a unix machine was booting. From the packets I understand that this machine whose MAC address is 00:22:22:22:22:22 is requesting information about ...
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votes
1answer
903 views

Why is my machine not showing anything when booting?

I'm using Ubuntu Server 11.10 x86, and after I make my normal selection (Ubuntu, with Linux 3.0.0-12-generic-pae) from the GRUB menu, the screen just goes blank - there's not even a cursor showing up. ...
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2answers
119 views

Is a bad NFS mount preventing a clean boot?

I'm on Ubuntu server (I think it's 12.04, but not positive) and I basically ran into this problem here Unmount a nfs mount where the nfs server has disappeared The umount command didn't work, so I ...
2
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1answer
229 views

Waiting for devices to come up on Debian boot

I'm running OpenVPN and dnsmasmq on my wheezy system. Dnsmasq is only necessary for VPN and local users, so I don't want it to listen on all devices (yes, there is also a firewall, anyways). When ...
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1answer
1k views

boot from pendrive FREEBSD Mounting from cd9660 :/ dev/iso9660 error :/ dev/iso9660/FREEBSD_INSTALL failed with error 19

I am trying to install FreeBSD from a pen drive. But it returns an error on boot. cd9660 :/dev/iso9660 error :/dev/iso9660/FREEBSD_INSTALL failed with error 19 and appears mountroot> command ...
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0answers
39 views

What is the issue with the boot setup on this raid array?

After a secure erase of /dev/sda (Samsung 840 Pro) I had to setup grub on /dev/sda2 (for some unknown reason the /boot partition is the second one). So I ran something like this: grub root(hd0,1) ...
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1answer
645 views

Linux “/dev/SDA” goes read only file system on SDB device failure [closed]

i have a very peculiar issue that is running in my system. Using debian linux : My system boots up very normally with a primary and secondary hard disk. suddenly my secondary hard disk fails with ...
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1answer
190 views

Bootable USB backup

I would like to create a copy of my running Linux installation onto a USB 16 GB pen drive. The current system is a basic ATX PC used as a headless server on a remote location. I would like to have a ...
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1answer
373 views

Is c:\bootmgr necessary in Win2008 R2?

I was writing an MSBuild script to automate my build. In my script I defined the following: <DeleteBeforeBuild Include="$(WebOutputFolder)\*" /> Since I had not previously declared ...
0
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1answer
251 views

CentOS 6 init script doesn't work properly

I'm setting up my ruby production server based on CentOS 6. I need a process called god (which is a process monitoring tool) to start at boot. I'm using an init script that I found here. Just as ...