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Questions tagged [grub]

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

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issues booting fresh install of UbuntuOS

I have 2 hard drives on my server and i have previously installed CentOS on one of the hard drives(not sure which but i am guessing the second) I install fresh Ubuntu 14.04LTS on the first one i will say but after the successful installation(which…
uberrebu
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Copy centos 6 modify mdadm raid 1 and clone to new mdadm raid 1 ssd

I have: Centos 6.7 grub-install -v grub-install (GNU GRUB 0.97) lsblk two new SSD 128gb Live usb with Parted_Magic_2015.03.06 /boot/grub/device.map # this device map was generated by anaconda (hd0) /dev/sda (hd1) …
Sanya Snex
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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 have generated using a password generator) to be…
Muddassir Nazir
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How can I modify the bootloader config on debian 7

I want to install Debian 7 remotely. I've followed this tutorial: https://wiki.debian.org/DebianInstaller/Remote How can I execute Step 8? I found the command update-grub but I don't know where to write the config.
Charles
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Deleted MBR on virtual machine on purpose, but entries are preserved

I'm playing with Master boot record. I decided to delete and restore it on my vmware machine. With Ubuntu LiveCD I'm trying to erase partition entries and signature with command: dd if=/dev/zero of=/dev/sda bs=1 skip=446 count=66 or: dd…
user3345632
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Debian/Installer Preseed Remove Post Install Kernel Options + Multi NIC Preseed Tip

In light of recent automation trends, I would like to be able to fully automate an install of Ubuntu. My my first problem was auto selection of the bootif with multiple NICs break Ubuntu/Debians preseed very badly. I ended up fixing that with the…
Scott Mattan
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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 kernel will not load. Nor are the entries listed in…
ndasusers
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GRUB hangs on emergency boot

I am trying to get a server going and was extremely excited when I found out it would automatically boot if the power just suddenly stopped. So if i were to unplug the server while it was still running it would boot next time I plugged it in. This…
Dovah Do Volom
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OpenSuse 13.1 GRUB2 downgrade GRUB stuck on menu

I was trying to virtualize a opensuse server and discovered that GRUB2 is not supported by VMWare, at least without some fiddling. I went into Yast and changed the bootloader from GRUB to GRUB2, and told the machine to convert the existing…
chongo2002
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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 prompt, but nothing comes out when I type in it. If…
Tootsie Rolls
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Use old raid drive as boot device without data loss

There were two disks in sw-raid. There were /dev/md1 as swap, /dev/md2 as boot and a /dev/md3 with ext4. The sw-raid was disabled by stopping and removing mdadm and then zeroing the superblock on each /dev/mdX partition with: sudo mdadm…
Gabriel
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Debian server does not get to grub on boot (possible raid issue)

First a bit of backstory. I'm working at a small business that runs their own web/mail/file server. The server is running on Debian lenny and I have been trying to update it, I ran into a problem with dovecot not starting so decided to reboot the…
Seize the Cheese
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removed files from /tmp/ directory - can't login anymore

I'm a system integrator(evidently noob), and today i've made my first scan with rkhunter, a tool that look into the system for check the presence of rootkits. After that scan i -foolishly- decided to remove the files inside /tmp/ directory, because…
lese
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Configure GRUB on XEN VPS

I have a xen VPS with debian 7 x86_64 installed on it. The operating system comes with GRUB2 installed on it. The problem is that while runnnig apt-get update apt-get upgrade -y GRUB says The GRUB boot loader was previously installed to a disk…
Kolyunya
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Why is my machine not showing anything when booting?

I'm using Ubuntu Server 11.10 x86, and after I make my normal selection (Ubuntu, with Linux 3.0.0-12-generic-pae) from the GRUB menu, the screen just goes blank - there's not even a cursor showing up. Basically I (suspect that I) had a bad NFS mount…
s g
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