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

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10
votes
2answers
515 views

Is there a way to create a “one-time” boot entry in grub?

I have the following issue: I have a small server (Debian based) to which I can connect remotely (VPN/SSH connection). Now I want to change some boot options (in fact I want to migrate my root file ...
2
votes
2answers
91 views

Linux RAID 1: How to make a secondary HD boot?

I have the following RAID 1 on a Centos 6.5 server: # cat /proc/mdstat Personalities : [raid1] md0 : active raid1 sdb1[3] 974713720 blocks super 1.0 [2/1] [_U] bitmap: 7/8 pages [28KB], ...
1
vote
1answer
25 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 ...
0
votes
1answer
19 views

Grub giving Error 2: Bad file or directory when I try to locate the kernel

I'm trying to boot a VM with grub-legacy and I'm getting a grub prompt. If I run root (hd0,0) it says Filesystem type is ext2fs, partition type 0x83, but then if I do kernel /TAB it says Error 2: Bad ...
0
votes
0answers
20 views

zfs checksum verfication failed, solaris booting failed

Looks like my solaris 10 got hosed overnight for unknown reason. I get below error while booting and also when trying to cat menu.lst file in grub. Hard disk is being detected by ubuntu so it may not ...
0
votes
1answer
58 views

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 ...
1
vote
2answers
45 views

grub.conf missing initrd path after kernel update

I updated a server this morning and the latest kernel panics during boot. Upon review of the grub.conf file I found the initrd path was missing. Is there a way to fix this issue? Or should I remove ...
1
vote
1answer
109 views

CentOS only detecting 50% of ram on IBM Server

I have IBM server with 16 GB RAM installed. Initially it showed 16 GB with free | grep Mem | awk '{print $2}' but now it shows only 8116136 but it must show 16439208 When I do dmidecode ...
0
votes
1answer
31 views

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 ...
1
vote
1answer
49 views

VM's Grub menu invisible with XenServer 6.0.2?

I have a dual-boot VM on XenServer 6.0.2 but grub just shows up as a black screen. I can still make a selection and such, but it's just a black screen in the XenServer console. Any ideas on how to ...
0
votes
0answers
51 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
3answers
123 views

SOLVED: Ubuntu Grub fails with: unknown command recordfail

I installed some patches on a Ubuntu 10.04 Server (LTS) system today. After rebooting the newly patched server the boot process is now hosed with an unknown command 'recordfail' message. If I hit a ...
0
votes
0answers
528 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 ...
0
votes
2answers
97 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 ...
0
votes
1answer
117 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 ...
1
vote
2answers
258 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 ...
0
votes
0answers
46 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
1answer
220 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 ...
1
vote
2answers
36 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
vote
1answer
128 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 ...
1
vote
1answer
230 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 ...
1
vote
0answers
204 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 ...
0
votes
0answers
63 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 ...
0
votes
1answer
246 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. ...
0
votes
0answers
28 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 ...
0
votes
0answers
34 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) ...
0
votes
0answers
56 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 ...
1
vote
0answers
264 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: ...
0
votes
0answers
88 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 ...
1
vote
2answers
259 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 ...
0
votes
2answers
134 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
981 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 ...
0
votes
2answers
287 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 ...
0
votes
1answer
467 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 ...
0
votes
3answers
344 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 ...
0
votes
1answer
320 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 ...
1
vote
1answer
259 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
votes
1answer
215 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
votes
1answer
1k 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
496 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 ...
0
votes
1answer
395 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
votes
1answer
218 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 ...
1
vote
2answers
306 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 ...
0
votes
2answers
538 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. ...
1
vote
2answers
498 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
200 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 ...
1
vote
0answers
282 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
240 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
2k 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
106 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 ...