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Questions tagged [boot-loader]

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Server failed to reboot after cpanel update it boots to grub>

I rebooted my server after a cpanel update but it didnt reboot ... my server is with OVH and they reported the following: Following your reboot, our monitoring system detected your server as offline....
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0answers
27 views

How to prevent boot again from PXE NIC after successful automated installation of CentOS on Vm using Kickstart Configuration file?

I have successfully installed (Automated) CentOS 7 using PXE Network boot with kickstart Configuration file. I have configured PXE Server on a VM & installing CentOS 7 on PXE Client VM. The ...
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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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1answer
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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0answers
189 views

How to reinstall boot loader on FreeBSD?

I'm planning to use rsync to clone an entire FreeBSD server to another machine, overwriting the files of the existing old FreeBSD OS (minus /etc/hostid and a few others) But that would break the boot ...
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0answers
90 views

grub-mkconfig -o would not update grub.cfg

Problem is that when I want to generate grub.cfg to load Xen kernel it just ignore the priority set at /etc/grub.d/. As far as I know grub-mkconfig should put 10_linux_xen in the grub.cfg but it ...
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2answers
303 views

PXE boot from an other Network

so i got an problem. I set up an Router with Debian9, its task is that Clients in the Network are able to boot from an PXE Server( the PXE Server is on an other Network) I heard sth. about IP-Helper ...
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1answer
157 views

How big is grub2?

Due to "Meltdown" I am in the progress of moving our CentOS7-XEN-PV-DomUs to HVM mode. See here on why I need to migrate to HVM This involves installing a bootloader - unnessesary on PV-DomUs, since ...
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73 views

How to diagnose boot failures (BeagleBone Black, debian 8.6, U-boot)?

We have a fleet of BeagleBone Black Industrial boards from Element14 in the field running Debian 8.6. Many of them are sometimes failing to boot up after shutdown (sudo shutdown -r now). I can ...
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0answers
357 views

BTX halted error on FreeBSD

I understand there are a few threads about this out there but my issue seems particular. Recently my boot disk, an SSD, failed and I have just rebuilt it. Given the opportunity, I thought I might go ...
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0answers
117 views

How to diagnose why Grub won't boot a Windows partition?

I just imaged a Windows partition onto a new drive with dd. Then I changed the NTFS UUID to a new one. Then I ran update-grub (using grub2) and restarted. Now there is a new menu entry in the Grub ...
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Problems with grub with our RAID10 Ubuntu installation

We have a Dell PowerEdge R730xd with 24 SSDs of 500GB each. We need to install Ubuntu 14.04 LTS on this machine, and use it as a database (postgresql). Our RAID controller is an Avago MEGARAID, and ...
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1answer
377 views

What is the difference in restricting single user mode with password through /etc/sysconfig/init and /etc/inittab in a Linux system?

I was checking some sites for setting password protection in single user mode login in my Linux server (Oracle Enterprise Linux-OEL) . In some places I saw the steps to add entry into inititab file ...
0
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1answer
561 views

How do I extract the initrd when the usual cpio -i -m produces gibberish?

I am attempting to follow the instructions here https://superuser.com/questions/1134160/how-to-get-old-linux-versions-to-boot-after-p2v-on-vmware for getting another P2Vd old Linux system to boot, but ...
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2answers
3k views

WDS Server - How does DHCP scope option 67 work?

What is the purpose of DHCP option 67? I thought the PXE client will look for a boot.wim file. Does the boot file located in 67 (like boot\x64\wdsnbp.com) go out and search for the boot.wim? What ...
0
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1answer
95 views

Configure RAID1 to boot from other disk if first one fails

I have Centos 6.7 running on 2 SSD disk in RAID1. The boot loader is installed only on /dev/sdb so in case it fails I won't be able to boot the system from /dev/sda Is there a safe way to ...
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2answers
1k views

Centos grub bootloader missing after installing windows 10 [closed]

I first installed CentOS 7 on my laptop, 2nd I installed Windows 10 in same hard disk with different partition, but I couldn't get my Centos 7 info in windows boot loader. I tried easyBCD tool to get ...
2
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1answer
937 views

Kernel upgrade with EXTLINUX on Debian

I would like to upgrade the Debian stock kernel to a compiled kernel packed as a .deb package. Running the: dpkg -i linux-image-x.x.Custom_amd64.deb triggers the grub-update and, as I see from ...
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1answer
2k views

Bootloader password - existing content found in /etc/grub.d/01_users

I need to set a bootloader password and am apprehensive about changing the existing config (per warning about potentially making a system unbootable). RH documentation says to add the following lines:...
2
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1answer
261 views

Setting bootloader password in EL7

Using this guide I am attempting to add a bootloader password to a CentOS7 install. When prompted, enter the password that was selected and insert the returned password hash into the appropriate ...
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2answers
638 views

WDS boot image doesnt want to start

I'am using Microsoft Hyper-V on Windows Server 2012 R2. I Have virtual machine of generation 2. My goal is to boot Windows PE boot image from WDS server using PXE. PXE boot seems OK. WDS starts its ...
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2answers
178 views

System refuses to boot RHEL DVD, but will boot other distos

I'm trying to install RHEL7 on a Dell R210. The system was RHEL5, but had shred run against its disk. I tried booting a DVD with the RHEL7 installer, but got nothing, it would not boot. I've ...
2
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2answers
465 views

EXTLINUX warns to install grub

While doing apt-get dist-upgrade on a Debian GNU/Linux Jessie EXTLINUX warned me that now was mandatory to install grub. The system was installed after an image not done by me: is it safe to ignore ...
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1answer
305 views

How to save output from grub-md5-crypt to a file ?

I am using Cent OS 6.5 and I want to save the generated output and md5 hash from grub-md5-crypt command to a file. The grub-md5-crypt command asks us to set a password. I want the password(which I ...
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2answers
1k views

Unable to boot into software RAID1 after disk failure

Today after restarting my data server I was unable to boot because one of the drives wasn't being recognized any more, it is still spinning when I connect it and not making many weird noises except ...
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1answer
5k views

How to fix when grub no longer mounts the boot partition at start up?

This system has a boot partition on a dm-raid device. I updated the system by standard methods from an older Ubuntu to the latest LTS. Now, if the kernel is updated by "apt-get upgrade", the new ...
2
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1answer
717 views

Win2K P2V on XenServer 6.2: VM unable to start

I'm trying to virtualize (P2V) a very old Win2K server (an IBM x345) with related storage: a main C: drive, running on top of a RAID 5 logical-array served by an internal ServeRAID HW controller and ...
0
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1answer
329 views

Debian server not booting after software RAID-1 array degraded

So I have a Debian 7 server with 3 hard drives. Its RAID-1 is basically configured this way: md0: sda1, sdb1 --> / (root) md1: sda5, sdc1 + sdb5 (spare) --> /data (sdc1 is on a SSD, and sda5 is ...
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0answers
254 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 ...
1
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1answer
570 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 choice ...
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1answer
152 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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1answer
908 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 ...
0
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1answer
419 views

Windows 7 boot manager not localized on UEFI systems

I originally posted this on SuperUser because I discovered this behaviour on my home computer, but this seems to be a general issue on UEFI systems, thus I'm posting here too; I also hope someone here ...
2
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1answer
2k views

Kernel panic - not syncing: VFS: Unable to mount root

I uploaded a centos 6.2 VMDK to s3 and then converted it to volume using ec2 import volume. Then i took the snapshot of the volume and deleted it.Now I am trying to create a instance from the snapshot ...
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1answer
496 views

FreeBSD Disable Serial Console from Bootloader?

I have a FreeBSD appliance (meaning I can't open the case or I will void the warranty) that was working well until I accidentally clicked 'Enable Serial Console' and rebooted... I went to plug in my ...
0
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1answer
1k views

An Error Occurred Installing Boot Loader (SLES 10.1)

I am trying to install SLES (SuSE Linux Enterprise Server) SP 1 onto a server but I'm having an issue with the bootloader. I go through the install, more a less default options except Gnome Desktop ...
2
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1answer
915 views

Solaris 11.1 x86 won't boot, verifying DMI Pool. How to install or verify boot blocks

x86 Solaris 11.1 had a mirrored ZFS root pool (rpool) which was 2x 320GB disks, I detached one and replaced with a 500GB disk which resilvered ok so ran the "bootadm install-bootloader" and did the ...
2
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1answer
417 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 --assume-...
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1answer
92 views

Install Ubuntu on a separate hard drive? [closed]

I am running Windows 7. I would like to dual-boot Ubuntu, but minimize risk of something going wrong. In the past I have encountered an issue with the bootloader getting corrupted and having to ...
1
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1answer
848 views

PXE boot linux and windows

Here is the scenario: I have 3 machines connected to the network thru a switch: one is the server that can act as the tftp server, switch has the DHCP server and other 2 machines needs OS to be ...
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2answers
533 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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3answers
10k views

Is there a Linux kernel boot parameter to configure an IPv6 address?

I know there is a parameter named ip which lets you configure IPv4 addresses on the Linux kernel through the boot loader. That looks like the following: ip=192.0.2.1::192.0.2.62:255.255.255.192::eth0:...
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1answer
956 views

How can I get a Netgear GS748Tv1 bootloader?

We own a Netgear GS748Tv1 (serial 141*). Sadly, due to a firmware update gone wrong, the bootloader got flashed away into oblivion. Since the warranty is expired, Netgear will not help us (this ...
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3answers
58k views

Remove MBR from USB flash drive using Windows

I have a USB key that was previously set up as a bootable key (clonezilla) Because of this there is an MBR on the key that will try (and fail) to boot off the key if it is left in a system. Deleting/...
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2answers
4k views

Compiling linux kernel - `make install` asks for LILO. Now what?

So I am following this guide to compile my custom kernel - http://library.linode.com/linode-platform/custom-instances/pv-grub-custom-compiled-kernel#sph_compile-and-install-the-kernel So far so good, ...
2
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1answer
499 views

What and where is my bootloader on a linode instance?

Using a virtualized instance on linode.com, I don't see where my bootloader is. In the usual place where I would find grub, i.e. in /boot/grub/menu.lst, I don't see any files or directories below the ...
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1answer
999 views

Windows 7 Bootloader installs to wrong drive when installing from secondary hard drive

I have set up an unattended installation of Windows 7, but my setup causes the bootloader to be installed to the wrong drive. Here is the setup: Drive 0 (OS Drive): This is the drive that the OS gets ...
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2answers
219 views

Can you add a application to the tools list on windows 7/Vista bootloader

I have been researching a way to add the new Microsoft offline security scanner to the bootloader on windows 7. Allow security scanner to be used when a machine is possibly infected. Visual BCD may do ...
4
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1answer
919 views

Debian installation on software RAID (lilo.conf configuration)

Debian installation program has created lilo.conf: boot=/dev/md1 root=/dev/md1 raid-extra-boot=mbr-only But when i configure lilo i usually put these lines disk=/dev/md1 sectors=63 heads=255 ...
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1answer
8k views

How can I find out where GRUB was installed?

I need to find where GRUB was installed, for example, which drive/partition. Is it possible to figure out where it was installed?