Questions tagged [boot-loader]
The boot-loader tag has no usage guidance.
81
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/grub/i386-pc/normal.mod not found with special condition
I updated my ubuntu server from 18.04 to 20.04 and reboot. after reboot I fall in grub rescue. in the (hd0,gpt2) there are some directories include grub. in grub there is i386-pc and in the i386-pc ...
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44
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How can linux system boot/reboot without bootloader installed?
Today I saw that grub is missing on my system (how that happened is another question). Checked with apt/dpkg: no grub* package installed, also no lilo or systemd-boot package installed.
Also was ...
- 143
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not possible run windows from other this after install grub
I have this disks
sudo fdisk -l
[sudo] password for grek:
Disk /dev/loop0: 91.69 MiB, 96141312 bytes, 187776 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / ...
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Remotely initiating an unattended Windows reinstallation on multiple machines from a partition
I am aiming to achieve the following:
Install Windows from scratch on Disk 0 partition
Prestage the machines remotely before reinstallation (using a custom tool I am developing). The tool ensures ...
1
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302
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Changes in grub.cfg custom Ubuntu 22.04 ISO not present on boot
I'm trying to follow instructions on how to make autoinstall Ubuntu ISO, but however I modify linux line in grub.cfg configuration file during customization of Ubuntu Server 22.04 ISO, modifications ...
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61
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What is the best practice for servers - EFI or legacy mode?
I'm currently installing a new Linux server and am trying to decide whether to use legacy mode (BIOS) or EFI. So far, I'm leaning towards legacy because it's less complex (less partitions) and has ...
- 231
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1
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750
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Using autounattend.xml to automate a Windows installation with Ventoy bootloader
In the company I work for, we occasionally need to build out servers which we sell to clients. Part of this process includes installing an OS, and in the past, we have used Windows 10 Ent. IoT and ...
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How can I find the full list of acceptable `boot=` option of kernel?
I usually see options like boot=casper or boot=live. However, I cannot find anything describe the actual meaning of this option and I cannot find any piece of code handle this option at all. From ...
- 292
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1
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80
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Boot manager shows two entries but only one partition remains after restore
I had to perform a recovery (using veeam recovery agent) on a windows 2019 server instance.
Before the recovery the system was configured as software raid (mirroring) with two dynamic disks.
After the ...
- 125
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2
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911
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QNAP TS-228 u-boot firmware
I am looking for somebody with a functioning QNAP TS-228 (32 bit; non-a version).
I had a firmware upgrade gone bad and the firmware got corrupted. I have a usb ttl so I managed to connect to serial ...
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714
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Oracle Linux server boot failure
I have an Oracle Linux 6.9 server which crashed and now it is failing to boot with the following error.
Boot Failed - Hard Disk 0: Fv (CDxxxx-xxxx-xxxx-xxxx) / FvFiles(1Fxxxxx-xxx-xxx-xxx-xxxx-9-xxxx)...
- 315
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1
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1k
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bcdedit doesn't work in Windows PE when Applying/Deploying/Restoring an Image?
I captured an image and I'm trying to restore it to a different VM without using Sysprep since I'm actively using the vm server I want to clone and I don't want to have to set it back up again, I ...
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147
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Secure Diskless System - NFS as root
I've created a diskless Debian installation with root filesystem over NFS, and boot loader on a USB (this computer has issues booting from PXE for some reason). My setup is similar to the one ...
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Need to replace the HDD on a single disk system
I need to replace the HDD on a single disk system used as a pbx (CentOS-6 based FreePBX). The existing partition structure is:
ls -l /dev/sd*
brw-rw---- 1 root disk 8, 0 Apr 17 2018 /dev/sda
brw-rw-...
- 337
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3
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2k
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DELL r630 + NvMe M.2->PCie : Cannot boot Ubuntu installed on M.2 NvMe drive via. PCie adapter
I have plugged in a PNY XLR8 500GB M.2 NvMe drive in a Delock PCIe card and stuck it in Riser 3 on my Poweredge r630 - Although the drive doesn't show up anywhere in BIOS, I could boot the Ubuntu ...
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Booting a squashed filesystem from ISO
I am trying to create a UEFI bootable CD ISO with a squashed filesystem from a virtual machine, which I provisioned with the stuff I need.
To explain:
I use packer and a kickstart file to install ...
- 131
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1
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143
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Dual boot - Windows shows picker instead of starting
I have laptop with dual boot: Debian and Windows 10. Recently I had some major issues with Windows so I decided to reinstal it from scratch. I created USB stick, formatted partition with Windows and ...
- 153
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189
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How do I correctly SysPrep Gen2 Hyper-V image or fix the one I'm working with?
My goal was to create a Win10 image (with programs installed) that I could quickly copy and reuse on Hyper-V for testing things.
I created a Gen2 image, installed Win10+apps, then SysPrep'd and shut ...
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177
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SCO OS 6 Driver for LSIL SAS1064E Raid Controller
A client has an SCO OpenServer Server 6.0, that is running on an HP ProLiant Box and they lost the root password.
Its equipped with a Doal-Core Intel Pentium Processor. They don't have any media or ...
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320
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change boot order gub ubuntu server
I have installed ubuntu server 18.04 on a dedicated server. The problem is i would like to have btrfs for the whole disk ( 1to ), but the web manager don't propose me the option to do so on ...
- 101
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199
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Editing /boot/grub/grub.conf not recommended - yet how do you then change entries?
For example, our /boot/grub/grub.conf looks like this:
## ## End Default Options ##
title Debian GNU/Linux, kernel 3.2.0-4-amd64
root (hd0,0)
kernel /boot/vmlinuz-3.2.0-...
- 101
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1
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568
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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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2
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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 ...
- 151
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1k
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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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2
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2k
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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 ...
-8
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1
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1k
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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 ...
- 7,705
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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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345
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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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776
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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 ...
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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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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 ...
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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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2
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3k
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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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1
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2k
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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 ...
- 1,360
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3k
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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:...
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1
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402
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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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2
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1k
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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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389
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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 ...
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803
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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 ...
- 1,360
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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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2
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2k
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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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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 ...
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912
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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 ...
- 4,088
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576
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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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371
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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 ...
- 4,210
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869
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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 ...
- 692
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169
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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 ...
- 101
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1
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1k
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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 ...
- 375
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487
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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 ...
- 70.3k