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

learn more… | top users | synonyms

4
votes
3answers
3k views

Use GRUB/GRUB2 to PXE boot OS image

Asked this in stackoverflow but they recommended I post this here: Here is the situation I am in: I currently have a Windows drive that boots XP. The BIOS does not support PXE booting so this is out ...
0
votes
3answers
427 views

Server Hangs on booting grub, Just displays “GRUB C”

I have install oracle linux 4.5 on server twice but having same problem. The server hangs on booting just displays "GRUB C" i don't know why is it happening. Please advice is it the drive issue.
2
votes
2answers
3k views

CentOS 6 Xen guest fails to boot after 'yum update'. Kernel?

I Seem to be having an issue with a Xen guest not booting after a yum update. DomU Configuration: #kernel = '/boot/solus-vmlinuz' #ramdisk = '/boot/solus-initrd.img' bootloader = ...
1
vote
2answers
4k views

Grub rescue, will not boot from mdadm RAID, no such disk or device — mduuid wrong?

I am running a 14 disk RAID 6 on mdadm behind 2 LSI SAS2008's in JBOD mode (no HW raid) on Debian 7 in BIOS legacy mode. Grub2 is dropping to a rescue shell complaining that "no such device" exists ...
0
votes
2answers
894 views

Linux xen directly boot windows domu?

I have the following situation: got a new notebook with Windows7 pre-installed (sda1 with boot partition, actual OS in sda2), one physical disk (sda) created an extended partition (sda3), inside ...
4
votes
1answer
1k views

Cannot install grub, segmentation fault, unable to identify filesystem, superfluous RAID member, found two disks with same index — Debian 7

A server was recently transported from location A to B, a long journey that took six months. Things have gone wrong due to nothing being labeled prior to shipment. Yes, I know --- it was done by ...
2
votes
1answer
748 views

Error 5 partition table invalid or corrupt

I'm trying to add a second SSD to a Centos 6 system. But I get the Error 5 partition table invalid or corrupt at boot. The system already has a single SSD (sdb) and a pair of HDDs (sd{a,c}) in a ...
1
vote
1answer
40 views

XEN - Does pygrub alter grub on dom0

I apologize for question but I did not really understand the idea behind pygrub. I've downloaded VM from stacklet.com. The image is shipped as a ext4 file and pygrub config. My question is if I can ...
1
vote
1answer
67 views

How do I replace a disk with LUKS on LVM2 - no raid, no span

I have LUKS on LVM (LVM Partitions created first, then each partition is encrypted separately, following this guide on Arch Wiki). I am using two volume groups, and each is isolated to a drive. This ...
1
vote
1answer
206 views

Install grub on mounted kvm image?

I am trying to mount a KVM image on the host machine in order to fix a grub issue however seem to be going wrong somewhere. I have tried the following steps: mount -o loop,offset=32256 ...
1
vote
1answer
852 views

SuperMicro Superblade fails to boot from hard drive

Following issue. I have a number of Superblades with LSI MegaRAID SAS 9240-4i cards. One card per server. All of them use the latest firmware (20.13.1-0176) as of this writing (as per the LSI ...
1
vote
1answer
240 views

Regular apt-get update broke grub

I ran a regular update (aptitude safe-upgrade) on my wife's server yesterday (a Hetzner root server with Hardware RAID) and the server hasn't booted properly since. I'm able to boot the server using ...
1
vote
1answer
115 views

Does Ubuntu 12.04 LTS support booting from RAID 6?

I'm setting up a new Ubuntu server using 12.04.2 LTS. I have five drives that I am setting up in a RAID 6 with LVM. Can I use this for bootup? Or should I make a separate RAID 1 partition for bootup ...
1
vote
1answer
161 views

Boot configuration error: Fedora 15

I have a Fedora 15 installation on VirtualBox. When I added another virtual hd it erased all the grub.conf. Now I'm trying to manually add the CD-LIVE correct command in grub.conf, but is giving ...
1
vote
1answer
530 views

Ubuntu Server 10.04 64 bit Clonezilla image shows grub menu at startup

I've successfully cloned an entire disk of one server using Clonezilla live. The only problem is after cloning, the grub menu displays on boot. Grub menu settings are carried over from the cloned ...
0
votes
1answer
106 views

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 ...
0
votes
1answer
1k 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 ...
0
votes
1answer
656 views

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 ...
0
votes
1answer
462 views

/usr/sbin/grub-probe: error: cannot find a GRUB drive for /dev/sdam1

When upgrading the kernel I get: /usr/sbin/grub-probe: error: cannot find a GRUB drive for /dev/sdam1. Check your device.map. Auto-detection of a filesystem of /dev/sdam1 failed. Please report this ...
0
votes
1answer
702 views

Ubuntu / GRUB reboot loop

I had to shutdown a server due to a power outage... The machine's been working just fine, an Ubuntu 12.04 box. Now when I boot back up, I get the GRUB 1.99 boot menu with several options, all of which ...
0
votes
1answer
685 views

How do I get rid of my duplicate GRUB entries? (Ubuntu 12.10, RAID1)

I have a Dell R300 machine running Ubuntu 12.10: $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.10 Release: 12.10 Codename: quantal $ uname -a ...
0
votes
1answer
168 views

Xen Issues - Total Memory + Grub Disappeared

I'm pretty much a newbie when it comes to the Xen Hypervisor, either way I installed it on a dedicated server, I just removed OpenVZ since it was annoying me. So, I followed ...
0
votes
1answer
502 views

“signal out of range” when starting grub after Natty server installation

I get “signal out of range” displayed on screen after boot up from fresh Ubuntu installation, if flashes grup in corner for half a sec then it goes to “No Input Signal”, anyone got a clue how to get ...
0
votes
1answer
414 views

Blank screen after grub menu

I just rebooted an Ubuntu Server 10.04. After choosing boot options in the grub menu, though, it just displays a black screen with the blinking white underscore in the upper-left corner. The machine ...
0
votes
1answer
532 views

How to change grub defaults?

I've got Ubuntu 10.04 and Grub 0.97, I've created /etc/default/grub (according to example in menu.lst): defoptions= howmany=all But every-time when update-grub is executed quite splash is appended ...
0
votes
1answer
97 views

Random Grub Error 2

The problem started today after a restart to switch power sources. Before today it would reboot fine everytime. I recently did update Ubuntu before the problem started. I have tried the find ...
-2
votes
1answer
463 views

Empty /boot/grub/grub.conf of a remote server, how to recrete it from recovery?

My remote server (running CentOS 6.6 x64) can't boot anymore. Using the emergency recovery (a LIVE CD) i can actually look that /etc/boot/grub/grub.conf and it's empty (0 bytes). I don't know why, ...
2
votes
0answers
843 views

How can I determine if nohz=off (CentOS 6.4 64bit - Hyper-V)

I've edited /boot/grub/grub.conf and added nohz=off to the command line of the default kernel. I do not see any difference, kernel is compiled with 1000Hz, but when I test with the following tool: ...
1
vote
0answers
133 views

grub: Booting Ubuntu off /boot in LVM, broken after upgrade

I have servers I want to upgrade remotely and headlessly from Ubuntu 12.04 LTS to 14.04 LTS. This upgrade has to happen via script, with no interaction. The do-release-upgrade command exits cleanly, ...
1
vote
0answers
212 views

EC2 AMI instance store backup grub utility required

Working on backup of whole ec2 volume and image to upload to s3. Using RHEL7 and it internally uses Grub2 as bootloader. EC2 AMI tools requires grub legacy loader and I'm struck up in this loader. ...
1
vote
0answers
143 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
vote
0answers
651 views

grub on debian wheezy doesn't recognise mdraid

We're having a really strange problem when trying to boot from an mdraid on Debian Wheezy. All references online that I can find tell me that grub 1.99 (which is part of Debian Wheezy) should have no ...
1
vote
0answers
47 views

What is the issue with the boot setup on this raid array?

After a secure erase of /dev/sda (Samsung 840 Pro) I had to setup grub on /dev/sda2 (for some unknown reason the /boot partition is the second one). So I ran something like this: grub<br> ...
1
vote
0answers
370 views

CentOS 6 won't load default (new) kernel, loads (another) older one instead

I am having a weird issue with a CentOS 6 system. I have upgraded the kernel twice now and when I reboot the system it still loads the older kernel. I also had a dc tech watch the screen as it ...
1
vote
0answers
368 views

GRUB is not loading - error: two disks with number 3

After rebooting my Debian 6.0 server I am getting these errors on load (captured it through kvm console): error: found two disks with number 3 error: superfluous RAID member (2 found) error: file not ...
1
vote
0answers
95 views

Fresh debian squeeze software raid install wont boot

I am following these instructions: http://www.iprobot.net/linux-tutorial/how-to-setup-software-raid-in-debian-ubuntu/ (I used debian-live-6.0.6-amd64-gnome-desktop.iso and DD'd that onto a usb key, ...
1
vote
0answers
260 views

Can Solaris 11 boot from one disk but load the OS from another?

I'm trying to convert my bare metal Solaris 11 Express box into a virtual machine but I can't get it to boot. I've already asked Is it possible to boot from a passthrough lsi2008 under esxi? but I ...
1
vote
0answers
148 views

Xen Hosting - What Could Be Causing My Kernel to Not Boot - At All?

I have a VPS at Linode, and I'm trying to boot Gentoo's hardened kernel - which is patched with Grsecurity and PaX. On Linode, you can boot a kernel of your choice by utilizing their "PV-Grub" ...
1
vote
0answers
1k views

XenServer 6.0 upgrade pygrub error

Just upgraded our XenServer testmachine from 5.6 to 6.0, one of the vms' (ubuntu-server 10.04 LTS) will no longer boot. Error in XenCenter; 9/11/2011 3:48:23 PM Error: Starting VM 'TestDom-Ubuntu' - ...
1
vote
0answers
601 views

How to modify Ubuntu 10.04.1 Grub entry for supporting KGDB kernel image

I am trying to update target m/c grub.cfg file for KGDB setup but while booting the m/c it got hung completely and not asking/waiting for remote gdb connection. Following is the entry which I added:- ...
0
votes
0answers
26 views

No volume groups found - CentOS

I have migrated a CentOS 5.11 server from VmWare to Hyper-V and when trying to boot the server. I'm getting the following error messages: "No volume groups found" ""VolumeGroup00" not found" and ...
0
votes
0answers
57 views

Why is grub not booting from 2nd drive? - boot info says “no valid partition table found”

My volumes look like this /dev/xvda1: LABEL="cloudimg-rootfs" UUID="d4f2aafc-946a-4514-930d-4c45e676f198" TYPE="ext4" /dev/xvdf1: LABEL="permaroot" UUID="afb7e502-ad08-4d6a-8701-2c05863f958e" ...
0
votes
0answers
436 views

Ubuntu 14.04.2 LTS - Errors on apt-get autoremove old kernel images - dpkg and grub errors

I was running my usual apt-get update / apt-get dist-upgrade sequence on my Ubuntu 14.04.2 LTS server, and saw some old kernel packages marked for autoremoval. I frequently run apt-get autoremove to ...
0
votes
0answers
172 views

Unable to install grub to software Raid array in Ubuntu

How do you ensure Grub is properly installed on a software RAID array in Ubuntu? I have a failed RAID array on an Ubuntu 14.04 server. When I first tried booting it, the Grub screen came up, but ...
0
votes
0answers
337 views

Ubuntu 12.04.x and 14.04 Server Preseed Grub Install fails

I have servers with multiple disks on which I need to preseed Ubuntu Precise and Trusty server editions. I've tried googling and reading debain pages and blogs but could not get this working. I either ...
0
votes
0answers
78 views

Grub CLI Arrow Keys Don't Work With IPMI SOL

When I am using the Grub CLI via IPMI sol I am unable to use the arrow keys, as well as some keys such as delete. What happens when I press the Left key I get random 'D' characters appearing, even ...
0
votes
0answers
127 views

Why is update-grub unable to find my root device?

I created a new root partition and I am trying run update-grub inside a chroot. I bindmount the following for i in /dev /dev/pts /proc /sys /run; do sudo mount -B $i /mnt$i; done update-grub ...
0
votes
0answers
109 views

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 ...
0
votes
0answers
162 views

Getting 'out of memory aborted' on booting

I am trying to install ubuntu 12.04 ~ 13.10 on my old machine with MegaRAID 9240-8i. Every time I finished installing and restart, the screen just popup out of memory aborted. At first I thought that ...
0
votes
0answers
75 views

CentOS grub.conf template?

I want to add some parameters to the kernel line in grub.conf, but I want to make sure that when the kernel is updated that those parameters persist. How is the format determined? Is there a template ...