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Questions tagged [grub]

Console application permitting the user to choose between several installed operating systems.

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install grub 0.97 to new 4TB disk

Stooped question but I cant understand why it not work. I have rhel 5.5 kernel 2.18. I clone OS from 750 gb disk to another 4 TB disk. I parted disk to 2 partition. 10gb sda1 40 gb sda2 I clone data from 750gb disk to 4tb by rsync. chroot to 4tb…
Black S.
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Grub2 fails to detect partitions if it was installed into file

I'm trying to prepare an image that I can dd into disk or boot using PXE. Some context: I create an image, partition it using sfdisk (MBR), create loop devices for the whole disk and main partition, format the main partition as ext4, mount it and…
sknaumov
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ext4 corruption leading to unbootable disk. Partition is mountable, but grub detects unknown filesystem

I'm trying to recover from a system disk corruption issue without having to reinstall the OS, which would be super-painful currently. I'm using Ubuntu 18.04, the affected partition is ext4 and on a SSD disk. Summary: Root partition gets remounted…
user3121424
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Not booting from hard disk after Installation from USB?

I downloaded kali 32bit images from Official Kali website, then installed on my existing windows 7 machine erasing and creating a single partition. Now, after rebooting error: no such device: b8b6b11d-0755-... Entering rescue mode... grub…
Bodhi
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grub2 RAID1 disk failure - unable to boot

Background I am setting up a server with software RAID1. This includes the /boot partition being mirrored (mapped to md0). My aim is that if one of the two hard drives containing the OS (sdc and sdd) were to fail, I would still be able to boot using…
GustavMahler
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Automated install using preesed - grub confirmation message issue

I am performing an automated install of a custom ubuntu 14.04 server using a combination of preseed and kickstart methods. Everything is fine except the annoying grub confirmation message as shown below: The kickstart file: #Generated by Kickstart…
Vijay47
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install grub in a usb and boot proxmox from another drive

Good morning my friends! I'm tryng a solution before buy some new hardware. So this is my situation: I have some beautifull hp dl360p gen8 that comes with an p420i hardware raid controller. What I'm tryng to build is a proxmox+ceph cluster for my…
silvered.dragon
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How to handle grub when adding new system and removing old one?

I want to upgrade my Proxmox cluster from 2.2 to 4. I think I have this well thought, but there's one thing I am not sure of. Currently, my installation runs on LVM A. I have added few new disks and created LVM B. I would like to install the new…
Krystian
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How can I get into debian to edit grub settings when grub is hidden and shift key does not bring up menu?

I wanted to hide GRUB during boot, so that I can access the list of OS whenever I want to boot something other than the default. I hid GRUB by specifying in /etc/default/grub…
Mikkel Rev
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Centos 6.8 failed reboot dedicated server

Ok so I bought/rent a dedicated server from nocix with Centos 6.8 installed, also came with 2 hard drives sda - 128GB SSD & sdb - 2TB HDD and I think I made a mistake by partitioning the second drive /dev/sdb and then reboot but lost the ability to…
Shane Buckley
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How to change boot drive on server with RAID 5 software raid

I have my hardware-owned dedicated server hosted in remote datacenter, running CentOS release 6.4 (Final) with grub (GNU GRUB 0.97). Server has 6 2TB drives with 2 software raids on them - md0 raid 1 for system and swap and md1 raid 5 for data. Here…
Josef
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Grub loading error 21

I have a 2-disk software RAID CentOS 6 system that I just installed. When I boot from the disk I get "Error 21" from GRUB. I have run this command on sda and sdb, after booting from the rescue DVD image: dd if=/dev/sda bs=512 count=1 | xxd I do see…
Sol
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How can I start grub using grub on my new installation

I have installed a Scientific Linux 6 (like Centos 6) on my first drive sda and use it as my working linux, in order to continue to user my working ditribution I have Installed a Scientific Linux 7 on sdb. Using boot priority on bios setup I am able…
famedoro
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Cannot Boot Centos Machine on GCP (Google Compute)

I have a Centos 6 server that's been running fine for 6mths on Google Compute Platform for the past 6mths. Without a restart - it froze this morning and on reboot is producing the following errors on boot: [ 3.205240] VFS: Cannot open root…
PeterM
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Linux + how to clean /boot and stay only with the current kernel version files

Under /boot we have the following files ( red-hat Linux version 6.6 ) cd /boot # ls -ltr drwx------ 2 root root 12288 Oct 15 2015 lost+found -rwxr-xr-x 1 root root 4152624 Oct 15 2015 vmlinuz-2.6.32-504.30.3.el6.x86_64 -rw------- 1 root…
dandan
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