Console application permitting the user to choose between several installed operating systems.
Questions tagged [grub]
346 questions
0
votes
2 answers
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…
![](../../users/profiles/277276.webp)
Black S.
- 35
- 3
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1 answer
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…
![](../../users/profiles/146515.webp)
sknaumov
- 101
- 2
0
votes
1 answer
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…
0
votes
0 answers
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…
![](../../users/profiles/402964.webp)
Bodhi
- 143
- 2
0
votes
0 answers
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…
![](../../users/profiles/409174.webp)
GustavMahler
- 123
- 1
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votes
1 answer
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…
![](../../users/profiles/445398.webp)
Vijay47
- 101
- 2
0
votes
2 answers
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…
![](../../users/profiles/293163.webp)
silvered.dragon
- 111
- 3
0
votes
1 answer
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…
![](../../users/profiles/71837.webp)
Krystian
- 286
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votes
1 answer
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…
![](../../users/profiles/103816.webp)
Mikkel Rev
- 147
- 7
0
votes
1 answer
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…
![](../../users/profiles/393917.webp)
Shane Buckley
- 73
- 6
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votes
1 answer
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…
![](../../users/profiles/286199.webp)
Josef
- 21
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- 4
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votes
0 answers
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…
![](../../users/profiles/359848.webp)
Sol
- 317
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votes
1 answer
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…
![](../../users/profiles/180135.webp)
famedoro
- 145
- 7
0
votes
1 answer
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…
![](../../users/profiles/149100.webp)
PeterM
- 9
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- 3
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votes
2 answers
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…
![](../../users/profiles/346089.webp)
dandan
- 1,021
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- 13
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