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

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27 views

Stuck at grub prompt after a default CentOS 6 installation

I am having a very strange problem installing CentOS 6 that I've never encountered before. I've followed these same steps thousands of times before, but within the past couple weeks I've had two ...
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2answers
55 views

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 ...
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1answer
15 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 ...
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2answers
46 views

Which vmlinuz and initrd.img should I use for 'headless' CentOS installation?

I am pondering reinstalling a CentOS Linux server remotely, by installing CentOS' installer into /boot (GRUB) as per this tutorial: ganesh.me: Install Linux Servers Remotely I notice that there are ...
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0answers
30 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 ...
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1answer
68 views

Grub install failing on Hardware RAID with LVM

I have a SuperMicro box with an Areca RAID controller installed. The RAID controller is configured for RAID 6 + Hot Spare. I am attempting to install Ubuntu 12.04 LTS. I set up LVM with separate ...
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2answers
34 views

Automatic OS rotation using GRUB

I have several test servers that perform unit tests and hardware tests on some PCI and PCIe boards my company produces. These servers are multi-boot with a number of various Linux distributions and ...
1
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1answer
64 views

KVM virtual machine boot messages

Just wondering if anyone knows of a way to stop the following boot messages with a centos 6.5 vm created with qemu-kvm When I start the vm there is a slight delay as the vm posts the following boot ...
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1answer
71 views

How to configure GRUB loader after apt-get upgrade on Ubuntu 12.04

I have a box with Ubuntu 12.04, and just did a apt-get upgrade. I'm presented with a dialogue to update my GRUB bootloader, but with the following message: The GRUB boot loader was previously ...
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0answers
106 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 ...
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0answers
43 views

Installing Ubuntu 12.04.3 with USB - install grub onto the correct boot drive

I'm trying to install Ubuntu 12.04.3 onto a new Dell r210ii server (no CDrom drive, USB booting only). The install goes fine, but since the USB drive is mounted as /dev/sda1 and the hard drive of the ...
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1answer
122 views

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. ...
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0answers
23 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 ...
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0answers
22 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 root(hd0,1) ...
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0answers
38 views

Why does a grub setpci blocks the system on a mac mini while working when run from the OS?

I am trying to run a setpci command that enables reboot on power failure from inside grub2, just in order to be sure that this is executed as soon as posible. The problem is that while this works ...
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0answers
153 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: ...
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0answers
58 views

Why do my Ubuntu storage cluster servers gets randomly stuck at grub prompt?

I have a number of Ubuntu 12.04 LTS servers that are part of a ceph storage cluster. The OS is on a specially prepared USB memory stick. The problem I'm having is that they very often get stuck ...
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2answers
164 views

How to update-grub on a system running overlayroot?

We ship boxes configured with overlayroot, using the following overlayroot.conf: overlayroot=device:dev=/dev/sda6,timeout=20,recurse=0 Which produces the following mount configuration: $ mount ...
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2answers
111 views

Does the initramfs image file need to be updated whenever grub.conf is modified?

I am trying to puzzle out a linux boot configuration problem involving legacy grub (0.97), LVM2, and dracut and trying to eliminate a few red herrings. My trial and error process goes like so: ...
2
votes
1answer
636 views

What is the correct way to install software RAID 1 in CentOS 6.4?

I'm going to install CentOS 6.4 on HP ProLiant ML310e Gen8 server. This server has fakeraid controller so i decided to use software raid. The problem is that i don't know how to correctly install GRUB ...
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2answers
148 views

grub always will boot to grub command line

I have a remote CentOS 6.4 server (with KVM access), when I received the server it was running with LVM on single disk (sda) I managed to remove LVM and install raid 1 in sda and sdb disks the ...
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1answer
268 views

Accidentally ran grub-install incorrectly, now have a grub prompt but no menu

tl;dr: I fat-fingered grub-install, then "correctly" re-issued it targeting the /boot filesystem on /dev/sda1 but it isn't reading grub/grub.conf unless I expressly tell it where to look using the ...
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3answers
179 views

How can one choose a new kernel on boot, running a dedicated server?

As part of installing proxmox on a dedicated server running Debian, it installed a new kernel. As part of the install instructions, I am supposed to choose the new kernel in grub. However I dont have ...
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1answer
201 views

Ubuntu 12.04 - Grub1 won't load new kernel

For some reason I can't get grub to load the new kernel. I tried removing the old kernels with aptitude and running update-grub but it still loads the old kernel - even though I've removed it! I ...
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1answer
142 views

How to boot after RAID failure (software RAID)?

Previously I had a software raid set up using (mdadm) of drives sda and sdb. sdb failed and the only way to reboot the system was by unplugging the second hard drive. Now I've added fresh sdb and sdc ...
3
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1answer
156 views

prevent mounting of encrypted volume on EC2

I've got a secondary EBS volume attached to my EC2 instances that's encrypted. When restarted, it attempts to reload the volume and gets stuck on luksOpen requesting a passphrase (which, with no ...
0
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1answer
698 views

Fixing a failed grub upgrade on RAID

We just upgraded out dedicated server from Debian Lenny (5.0) to Debian Squeeze (6.0). In the process, the grub upgrade failed. I (perhaps foolishly) followed the advice at ...
0
votes
1answer
292 views

How to boot RHEL5 into failsafe mode from GRUB?

I'm locked out of a Red Hat Linux 5 machine and need to "break in" to reset the root password. I've done this before by interrupting GRUB and putting the machine in failsafe to get to root, but I can ...
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0answers
189 views

How to install debian to a remote headless server?

I connected to a rescue system of my server via ssh. I partitioned al the disks like so: sda1 = /boot, sda2 = /swap, sda3 = lvm (with /, /home, /usr, /var, etc.). As I understood the next steps are: ...
0
votes
1answer
318 views

Grub can't find Xen multiboot file

I am running Debian Wheezy on a software RAID 0 with LVM. I'm trying to get Xen to work but grub refuses to boot in it. I installed Xen by following the instructions here: http://wiki.debian.org/Xen ...
0
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1answer
151 views

An Error Occurred Installing Boot Loader (SLES 10.1)

I am trying to install SLES (SuSE Linux Enterprise Server) SP 1 onto a server but I'm having an issue with the bootloader. I go through the install, more a less default options except Gnome Desktop ...
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2answers
270 views

fix kernel on Xen Server hypervisor vps

I have a cloud server hosted at Rackspace, and they use Xen Server hypervisor. I was running Ubuntu 12.04, and really messed up by attempting to do a release upgrade manually. The hypervisor ...
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0answers
29 views

Can I run a 64bit Debian Linux without VT-x on VMWare or Oracle VBox? [duplicate]

I am running a Debian 64bit version with its default GRUB loader and kernel 2.6.32-5-amd64. By pressing e I can get into a mini-emacs to edit the GRUB loader script. The CPU I would like to run the ...
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2answers
406 views

Strange Ubuntu boot up warning

I have a VM (Xen based), I can boot up the machine but there are some warning during the boot up. Are they normal? If not, how to solved? md: Scanned 0 and added 0 devices. ...
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2answers
391 views

RHEL 6.4 custom dvd boot issue

I'm creating a custom RHEL 6.4 iso to save myself time while rebuilding standalone hosts. Before I customize the menus and add the extra kickstart files in I have tried a simple unpack -> repack to ...
0
votes
1answer
161 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 ...
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0answers
261 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 ...
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0answers
198 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 ...
0
votes
2answers
1k 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
1answer
104 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 ...
0
votes
1answer
201 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 ...
2
votes
1answer
129 views

I'm stuck on choosing the right Linux bootloader for software RAID-10

I'm installing Gentoo on a SOHO server with 4 500GB Hitachi hard drives. I was able to boot from Live USB, created RAID-10 array /dev/md0 with the following command: mdadm --create /dev/md0 ...
4
votes
2answers
925 views

mdadm raid 1 grub only on sda

I just finished setting up a CentOS 6.3 64bit server with mdadm however a lightbulb went on and I realised grub would only be installed on the first drive which is about as much use and an ashtray on ...
2
votes
3answers
4k views

Debian boot to single-user mode

I forgot my root password and am attempting to change it by booting into single-user mode, however when booting I get this screen: Then I press "e" to edit the boot configuration and I get this ...
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0answers
96 views

Server panic after configuring the memory usage for kdump

I tried to set up the kdump on my CentOS 5.8 system. I tried editing the /boot/grub/grub.conf and insert the line crashkernel=auto between the kernel and initrd entry. Then proceed on editing ...
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0answers
77 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, ...
4
votes
2answers
1k views

X86 Solaris boot failure

We had a power outage last weekend that seems to have done some very bad things to one of our x86 Solaris machines. It is refusing to boot, and dropping me to the "grub>" prompt when started. I can ...
0
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1answer
99 views

How is GRUB config is read before filesystem is mounted?

During Linux booting how is the contents of grub.conf read since the file system is not mounted yet?
0
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3answers
107 views

Boot another OS e.g. Windows *once* on a dual-boot machine

I have a dual-boot machine with Windows and Linux on it. It doesn't reside at my hand, instead , it's placed in the datacenter which I have to access remotely. For most of time, I work on Linux. But ...
0
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0answers
227 views

Grub2 and Debian on /dev/sdb

I've got a problem with an old dell poweredge 2950 installing debian squeeze. The raid controller is setting up the volume group as /dev/sdb. During the installation process grub wants to be ...