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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tape changers on Centos 6 enter flurry of activity upon boot, at udev start

I have two tape-changer robots (Quantum Superloader 3), one with parallel SCSI connectivity, the other with SAS. They were connected to a Centos 5 server, and boot would proceed normally. They are ...
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229 views

Upgrading CentOS from 6 to 7 has broken my boot sequence

I ran the upgrade assistant provided by CentOS for upgrading from CentOS 6 to 7. The upgrade appeared to have been a success, however my system now hangs when trying to boot up. (Keep in mind I have ...
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1answer
1k views

persisting esxi /bootbank/boot.cfg across reboots

i have a serial console connected to my esxi 5.5 server. and the configs work fine for the pxe install. however, upon reboot my console no longer works: i believe i need to change the file /bootbank/...
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864 views

How to remove the pause during JBoss 5.1.0 GA boot between ProfileServiceBootstrap and AnnotationCreator?

I've managed to strip down my JBoss profile enough that it boots in 1.5 minutes. I started with the web profile and started pulling out stuff I didn't need. The bulk of my boot time can be seen here: ...
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551 views

Start at boot time Corosync 2.X + Pacemaker 1.1 cluster (Debian Wheezy)

I can't find a way to start cluster (corosync+pacemaker) at boot time in Debian I have updated a 2 node cluster with the following configuration on both nodes: Debian Wheezy 7.7 Corosync v2.3.4 ...
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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 ...
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1answer
274 views

How to boot from CD rom in a Sunfire v250 server

I have a Sunfire v250 server that currenlty has Debian installed, I need to make a fresh Debian install with the newest stable version, but I cannot make it boot from the Debian CD. The servers ...
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999 views

Error 5 partition table invalid or corrupt

I'm trying to add a second SSD to a Centos 6 system. But I get the Error 5 partition table invalid or corrupt at boot. The system already has a single SSD (sdb) and a pair of HDDs (sd{a,c}) in a ...
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1k views

mdadm warning after apt-get upgrade - can't boot RAID

I'm running Ubuntu 12.04 precise. A recent apt-get upgrade ended successfully, but printed the following warning at the end: update-initramfs: Generating /boot/initrd.img-3.2.0-21-generic W: mdadm: ...
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40 views

Ubuntu ramdisk template

I've been working on a ramdisk template for running a complete root filesystem on the RAM of a baremetal server(over IPMI so no physical access) that boots over PXE. I used debootstrap to create an ...
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83 views

AMI Without Reboot on AWS EC2 on a Web Server

I am running a webserver with very little writes (apart from log files). According to amazon: When enabled, Amazon EC2 does not shut down the instance before creating the image. When this option ...
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1k views

AUFS: How to create a read/write branch of only part of a directory tree?

AuFS (another union file system) allows us to merge two trees into one, even when those trees overlap. We can then direct writes to the merged tree towards one of the branches and reads to another. ...
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217 views

Automatic VPN connection if a trusted network isn't found?

I'm trying to figure out if this is even possible. I want my laptops to automatically connect to a trusted network if they're in range (Ie my wireless or hardwired). If they're not in range I want the ...
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1answer
140 views

debian unable to automount partition at boot

I have a single usb drive connected to my server, and I am unable to get it to automount at boot time. If I manually execute mount -a it mounts correctly. my fstab is as follows: proc /...
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103 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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83 views

Debian 3.1 (Sarge) init.d boot order

I am using a TS-7800 single board computer from Technologic Systems that ships with Debian 3.1 (Sarge). I have updated it to Squeeze, but due to various driver issues I have been forced to roll back ...
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723 views

VMWare ESXi 5 - How to clone Windows 2008 SBS

I am running two Windows 2008 Server on a VMware ESXi 5 Server (VMware vSphere 5 Essentials Kit). There are two different ESXi hosts within my VMware datacenter environment. Let us call them ...
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849 views

httpd won't start on boot

I have some problemes with apache on CENTOS... When I reboot the system, httpd won't start I have to execut my-self "service httpd start" chkconfig httpd --list httpd 0:off 1:off 2:...
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163 views

Boot configuration error: Fedora 15

I have a Fedora 15 installation on VirtualBox. When I added another virtual hd it erased all the grub.conf. Now I'm trying to manually add the CD-LIVE correct command in grub.conf, but is giving ...
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260 views

“Verifying DMI Pool” hang caused by raid array

I have a problem, I obtained a new server with 4 hard drives (2 500 gig, 2 two TB), and an adeptec RAID card. I arranged them in two arrays with RAID 1 (500 gigs together as primary and the 2 TB ...
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927 views

Windows Server 2008 (x64) won't boot past BIOS screen

Since a month or so ago I inherited responsibility for small network administration for my sins. The domain controller (yes there is only one, and yes I know it is best practice to have two even in a ...
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215 views

Redhat not booting on an HP Itanium

I've inherited a number of different systems to administer. One of them is an HP Itanium running a version of Redhat. Today the system died and when I try to reboot selecting RedHat from the EFI ...
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20 views

PXE Boot serva windows

Created as per pxe boot microsoft surface Having a problem pxe booting through serva, this is for a microsoft surface. Windows 7 image, it seems to freeze when loading 'bootmgfw.efi' although it ...
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8 views

Set an network interface in FreeBSD as DHCP-enabled, but totally silent until explicitly enabled

I'm setting up a FreeBSD carp router/firewall backup, my provider is giving out IP by DHCP, it's static and tied to MAC address of my NIC, so when carp switches state I'm trying to switch off the ...
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29 views

Server not booting after 16.04 upgrade (not pinging)

Yesterday I upgraded my server to 16.04, all fine and when I rebooted the server has rebooted to rescue. I fixed packaging conflicts via apt-get autoremoveapt-get upgrade etc... I also tryed to repair ...
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31 views

HP ProLiant DL360 G5 issue while booting (no error messages, just beep code)

I need helps as I cannot boot up the server. There are 2 processes happen: 1st: The server checks for hardware issue but since no beeps, I guess everything is ok. The monitor is white (slowly ...
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47 views

home logical volume is not available after reboot

On a server with RHEL 7.2 it gets to emergency mode when rebooting. Looking a bit I found out that what happens is that the /home partition was missing and the reason was LVM: --- Logical volume ---...
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18 views

Can't find logical volume when booting imported disk images in Xen guest

I've got a couple of drives I copied over using ddrescue to image files for booting under Xen. They contain an LVM volume group with a couple of volumes in it, which was originally split across two ...
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115 views

Unable to boot openSUSE or SLES12 from plain installation on Gen9 server

I am installing software on a brand new HP DL120 Gen9 server. This is going to be just a high-performance testing machine. I wanted to install openSUSE Leap. Intelligent provisioning won't recognize ...
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69 views

AWS pv-grub don't see config file

I created ami from scratch: ec2reg -n centos7 -b '/dev/sda=snap-96a520e3' --kernel aki-499ccb20 -a x86_64 but pv-grub can't find config file: Thread "Idle": pointer: 0x20f0002050, stack: 0x2070000 ...
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35 views

How can I make sure my virtual serial ports are available at bootup

I am using a Serial port re-directer and Clone functionality done through a python script. With Virtual Serial ports that are created via socat. How do ensure that these Virtual Serial ports will be ...
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145 views

Linux disk moved on a different server won't boot

I have a server HP Proliant DL120 G6, with an installed and working Ubuntu 14.04. The partitioning is reported below. Now, if I move the disks on a very similar HP Proliant DL120 G5, in the same ...
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108 views

Solaris 10 Update 8, ZFS boot/root zpool and moving disks around

One of my OLD machines is running solaris 10 Update 8 (x86). It has a mirrored ZFS I use for "root zpool". Both disks are failing so I plugged a new disk in a USB port and attached the new disk to ...
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61 views

Intel server SC5300LX+SE7520BD2 won't boot after removing a second PSU

I have an intel server SC5300LX+SE7520BD2 with 1+1 redundant PSU (Delta electronics C46098-005). As one of the PSU had an amber led lightning, I decide to check the part-number and I did this by, ...
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65 views

Start seafile before docker at boot

On a debian 8 server, I have installed docker which run a MariaDB container. Seafile server is dependent of the MariaDB container. On restart, MariaDB take too long to start, so seafile fail is ...
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54 views

Linux Redhat 6.0 booting freezed at “starting RHM Managed Xen Domains”

One of our Linux redhat 6.0, 64 bit machines freezes **after the step of "starting RHM Managed Xen Domains"** during booting. It has been staying there for days without successful booting. ...
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871 views

OpenVPN start at boot not working on Ubuntu 14.04

I am trying do configure my Ubuntu 14.04 server, so OpenVPN will start at boot. So far, I am able to start OpenVPN server with the command: service openvpn start After I execute this command, I ...
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211 views

RHEL hang on boot - first on sendmail, then on iiimf

I can't figure out what this box is doing. Running RHEL 4.8 - it was rebooted and now it won't come back up. Diagnostic with Seatools shows the drives as good, fsck checks out as well. I can get into ...
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176 views

DL160 G5 fails to boot CentOS 5.11

I'm trying to install CentOS 5.11 on DL160 G5, with 4 bays holding 3TB sized drives. The installation with default partition layout completes successfully, however on boot I get to a blinking cursor ...
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207 views

Sun Netra 240 not booting to ALOM

I inherited a Sun Netra 240 with no OS installed (indeed, with no hard drives). I did some googling, and came up with a few manuals, all of which I downloaded: Netra 240 PROM Guide Netra 240 ALOM ...
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87 views

Boot mode issue in Windows

Ive a little problem with Server 2008 R2. Recently I've stuck in safe boot loop. After few tricks I was able to login to server, but right now I can't select Normal Boot mode. When I'm selecting this ...
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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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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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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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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. ...
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97 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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494 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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498 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 RAID-on-...
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50 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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359 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 ...