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

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4answers
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skip fsck on boot on ubuntu 10.04 server

We are sitting here in front of an ubuntu 10.04 server who insists doing a lengthy checkdisk during reboot. We see one option to edit the kernel boot options line in grub to skip the check. What ...
0
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1answer
275 views

How to get rid of grub error on aptitude safe-upgrade

This is a new ubuntu 10.04 root server at the hoster. I did the initial sudo aptitude update && sudo aptitude safe-upgrade Now I am confronted with this message each time I run sudo ...
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2answers
1k views

Serial terminal over ethernet

Well, my idea is I would like to have access to grub over Ethernet/Internet, I've found two possible solutions: Converter RS232 to Ethernet (1) which looks like to have its own live, I mean it is ...
0
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1answer
832 views

grub2 error : out of disk

I recently install ArchBang on a machine with Ubuntu and XP. I ran update-grub from Ubuntu and it found the new install and created an entry. However, when I try to boot it, I get: error: out of disk ...
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3answers
2k 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 ...
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2answers
402 views

I can't boot Win7 OR Ubuntu after installing Ubuntu 9.10

i made a partition on my new computer because i decided that i wanted to have both Win7 and Ubuntu 9.10. I made a disc image on my usb driver, and restarted my computer as to run Ubuntu without making ...
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2answers
2k views

Kernel Panic - not syncing: attempted to kill init (for VM image from a physical machine)

I had a CentOS 5.4 x86_64 machine where I imaged the primary partition with the following command so that I could run it in a VM on my local machine for testing. #dd bs=1024 count=10482412 if/dev/sda ...
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2answers
2k views

How to permanently ignore grub-pc package for aptitude?

I'm running Ubuntu 10.4 virtualized under Xen and the grub-pc package is broken and apt-get notifies me every time I run it. I just want to configure apt-get / aptitude to ignore this package ...
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1answer
958 views

EC2 issue using PV-Grub and custom kernel: error 21 selected disk does not exist

Over on EC2 I am trying to setup AMI's for PLD-Linux that use the new features that allow running custom kernels from inside the AMI using PV-Grub. I've setup custom AMI's many times before but can't ...
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1answer
6k views

Centos 5.5 won't boot anymore; the dreaded “Could not find filesystem /dev/root” error

Normally I have no problems finding my answers online but I have been trying to fix my downed server for 3 days now and I am no step further. The server in question is a Centos 5.5 machine running ...
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4answers
132 views

I changed boot/grub/menu.ls

I commented out a wrong line in /boot/grub/menu.ls and now it tells me kernel panic - not syncing : VFS: unable to mount root fs on unknown - block (0,0) It stops there and does nothing. How can I ...
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0answers
555 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:- ...
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2answers
619 views

How do I enter interactive command mode in GRUB bootloader?

I've accidentally locked myself out of the sudoers file on my desktop machine when trying to get wireshark working. So I figured that I need to enter single user mode. I've read how to do it in ...
0
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3answers
737 views

Reinstalling GRUB on RAID array

I have a computer running Ubuntu 10.04 Desktop x64. I just bought another tb drive and wanted to combine my two drives using RAID 0. I have a MSI 890GXM-G65 motherboard and decided to use their built ...
0
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1answer
91 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 ...
0
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1answer
85 views

Detect CPU during boot

I like to be able to detect the cpuinfo from during boot using grub2. Can this be done? What function should I call? Is there a manual that lists all of the function available to the grub2 env?
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2answers
1k views

Can't Reset Password - Ubuntu 10.04 on Hyper-V

I have a virtual Ubuntu 10.04 machine running under Hyper-V which I have lost the password to. With a physical Ubuntu box it's rather easy to press ESC at the grub prompt and proceed to reset your ...
0
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3answers
844 views

No Grub on VPS?

I bought a new VPS running CentOS 5.5, and I'm trying to upgrade my kernel. I've downloaded, compiled and installed it sucessfully, and now I need to set it up in the grub settings. But there's no ...
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2answers
4k views

Linux boot: Can I prevent the loading of a module using a boot parameter?

I know that I can blacklist a module in /etc/modprobe.conf or /etc/modprobe.d/blacklist, but I have a nasty module which loads before the filesystems are mounted (except /boot of course), so I assume, ...
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3answers
527 views

grub crc error after decompressing linux

I have a debian with a raid1 on it. Both HDDs have bootable flags and grub setup in MBR. If I only start up with sda, linux boots. If I only start up with sdb, grub shows up and says Decompressing ...
0
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1answer
217 views

Grub Error 18 - Solid State Drive

I recently used Raw Copy to make an image of my 300gb Raptor Hd to a OCZ Vertex SSD 60GB. And When I pluged in the SSD to boot I get a Grub Error 18. I have tried to changed in the BIOS setting to ...
2
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2answers
349 views

how to restore grub

During copying files via lan my Ubuntu Server 10.04 hung up and I had to reset the computer. After reboot, I got: Grub error 17, so I tried the rescue alternate CD, but I got a info, that no ...
0
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1answer
142 views

Rolling back Server edition from GRUB List (Ubuntu)

I seems i did some mistake, and installed Ubuntu server on my home based ubuntu box. and the problem is that GRUB places the server edition as a priority boot in the menu, especially when I upgrade ...
1
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1answer
2k views

Getting Grub2 to recognize a Raid 10 boot/root

I've been trying to get my raid to boot from grub2 for about 2 days now and I don't seem to be getting closer. The problem appears to be that it doesn't recognize my raid at all. It doesn't see (md0) ...
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2answers
3k views

How do I redirect the kernel console output on Ubuntu 10.04

When I reboot my Ubuntu 10.04 nodes, I'd like to be able to see the kernel boot messages when connecting to the IPMI interfaces using Serial Over LAN mode (ttyS0). What do I need to do to be able to ...
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3answers
339 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
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1answer
1k views

Changes to grub in ubuntu 10

I've been running CentOS 5 for some years. I've decided to upgrade to Ubuntu, and with 10.04 just out, this seemed like a good time. I'm a tad paranoid, so I started off with a new set of drives - ...
2
votes
2answers
2k views

how to reinstall grub on ESX 4 system?

I rebooted my esx 4 server today and was greet by a single bit of text that said GRUB and it hung. I am attempting to restore the MBR GRUB partition, but am having difficulties. All i have is the ...
0
votes
1answer
762 views

Grub2 menu after VMware guest customization

I have ubuntu 9.10 desktop VMware VM with the default grub2 installed. There is some weird problem with this VM. When you clone this vm and have a customization script run, the cloned machine crashes ...
2
votes
1answer
957 views

Fedora 11 System - Failed Hard Drive Removed, and Boot gets GRUB Hard Disk Error [closed]

Greetings, I have a machine with a 120GB ATA drive that has what I thought to be non-essential data on it. I also have a 320GB SATA hard drive with the OS/Application/Files (good data I want to ...
2
votes
1answer
2k views

linux kernel option to set sata disk to udma/133 1.5gbps

i try to speed up boot time of my linux server box which uses removable HDD rack's the current boot time is around 2 min's but if i connect the hdd's directly to the mainboard its about 2 sec's the ...
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2answers
1k views

Grub entry to boot from cd rom?

What would be the grub entry to boot from cd rom? (so the boot loader of the cd rom should be loaded and executed next) Grub is installed on the hard disk and should not live on the cd rom. I want to ...
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2answers
1k views

how to make grub always select the default option, even if first boot fails?

we have a temporary requirement to have several small PCs running ubuntu 9.10 running 24/7 in an environment where the mains power isn't very reliable. The machines are in a remote location and hard ...
1
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1answer
218 views

Fastest way to migrate Linux data

I'm looking for a fast to migrate Linux installation to another hardware. As I wrote in another question (http://serverfault.com/questions/110501/unable-to-access-resume-device-in-centos), I moved 2 ...
1
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1answer
2k views

Unable to access resume device in CentOS

I moved my CentOS soft-RAID1 drives to another box, and now it fails to boot. When I launched the boot process from the grub menu, I get the following error: "Unable to access resume device ...
0
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2answers
1k views

Cannot restore grub for Ubuntu 9.10

I have a hard drive with some partition for windows (NTFS) and 1 partition for linux and 1 partition for linux swap. Recently, I tried Norton Partition Magic Pro 8.05 (comes with Hiren Boot CD). It ...
1
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1answer
373 views

Check bootloader existence in a block device

How can I check if a bootloader (i.e. grub2) is installed on a block device (e.g. CF card)? I know I can mount the device and peek some files but how can I be sure the bootloader is installed without ...
1
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2answers
637 views

Multiple boot options (in grub boot list) appeared after yum update

I am quite new to Linux administration so I am having trouble understanding yum update and grub boot list. I recently did a yum update on an old CentOS machine. Everything is good except there is ...
4
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3answers
21k views

How do I chain boot from grub to syslinux?

I am expanding my rescue usb flash disk. The USB's partition is bootable, and I have installed GRUB to the MBR of the jump drive. It works pretty well - I can boot Freedos and run some utilities,and I ...
1
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3answers
1k views

How to install grub on a completely empty hard drive?

Normally, there are solutions available out there to restore grub or install grub provided that linux in installed first. How can I install grub while not having any partition which has an installed ...
1
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2answers
194 views

GRUB for windows while not having a Linux root partition?

I want to use GRUB for loading Windows. I know about the chainloading that needs to be done but the thing is that I don't have any Linux system installed and I don't want to install it. I have two ...
2
votes
3answers
2k views

How can I boot from .iso images stored on the harddrive?

I want to put a .iso file of a bootable linux CD on the harddrive of my computer. I want to have it boot using grub (or lilo), and have it boot from the .iso file as if the .iso was a real CD in the ...
1
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2answers
87 views

New entries on the GRUB

I updated my Ubuntu, and after that there were two new lines on my GRUB screen. Ubuntu 9.04, kernel 2.6.28-16-generic Ubuntu 9.04, kernel 2.6.28-16-generic (recovery mode) Ubuntu 9.04, kernel ...
2
votes
3answers
1k views

Why is GRUB drive enumeration different before and after boot?

I'm looking at a system with Debian/Lenny on a couple of old IDE PATA drives (several RAID-1 partitions including /boot) and a relatively recently added SATA drive. The system works fine but I've ...
1
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1answer
439 views

Store Live CD's on HD and Boot from GRUB

I use "Clonezilla" and the "SystemRescueCD" on a lot of servers and I was wondering if there' s a way to copy the ISO files (from the above tools) into a partition (e.g in every server) and modify ...
0
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3answers
2k views

Unable to boot into Windows Vista, gets into grub prompt

I have the following scenario: I had a dual boot option on my laptop with Windows Vista Home Premium and Red Hat Linux Enterprise Edition 5.0. In order to install Ubuntu on the partition having RHEL, ...
3
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2answers
3k views

Enabling AHCI in RHEL5 post-install

I have two servers running RHEL 5.4 quite happily. However, through simple oversight, AHCI/hotswap support was not enabled in BIOS at install time and is now needed. The machines are running ICH10R ...
19
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2answers
19k views

How do I tell if grub is installed on a device?

How can I tell if grub is installed on a disk, and if it is what settings it has (noteably, what it has for the root parameter) I need to check a lot of disks in software RAID1 arrays to make sure ...
1
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3answers
3k views

how can I boot linux from a software raid 1 array

I'm trying to make a raid array on an existing linux ubuntu install. I'm following this tutorial... http://howtoforge.org/software-raid1-grub-boot-fedora-8 After going through the list of things a ...
0
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1answer
317 views

What are the device numbers in the root command in grub config menu.lst

I'm trying to set up raid1 on my linux machine and all the tutorials explain changing your grub config. Fine, but I like to understand what I'm doing. The man page for grub leaves out the interesting ...