4

How to Install GRUB on the other Disk

view full story
linux-howto

http://lpilinux.com – After adding a new disk to your raid chain it’s a good idea to make it bootable as well by installing grub on MBR. When boot drive in your raid array becomes faulty all you’ve to do is to power off your machine, substitute your faulty drive and boot your computer again. If you’ve properly set bios boot sequence to iterate between primary, secondary, … you can boot your raid array again, second or third HD makes the boot because you’ve installe (HowTos)

dayu's picture
Submitted by dayu on 04/10/2010 – Made popular on 04/10/2010

Stories similar to How to Install GRUB on the other Disk

Hi,

I'm trying to get a windows 7 64bit-ubuntu 64 bit dual boot working onto a dell studio-xps-8100 with an EXISTING raid 0 array with 2 identical 2 tb hard drives with a ich8r/ich9r/ich10r/do/pch sata raid controller. I'm able to install ubuntu but not grub so I'm not actually able to boot into it.

I am doing raid 1 on the same disk (not very good but better that doing no raid)  So, I followed the instructions but doing them on the same disk (except install MBR on only one disk) and I obtained the message at the boot :Multiple active partitionsAfterwards, I removed the boot flag on the second partitions making the raid 1 array, the new message isBooting...Missing OS  Is it really p

Server 12.04 boots to Grub CLI 51 weeks 3 days ago

Yesterday, I rebooted the server and it booted up to grub. Screen says 'Minimal BASH-like .... etc'. I've tried booting to the Server rescue mode from the install disk and tried reinstalling grub. I've tried the Boot Rescue Disk, still doesn't boot. I can get in and see all my files via the server rescue mode, but grub will not boot anything. No menu comes up, just the grub cli.

Before my installation of 12.04 server I read a lot on the forum about raid install and problems with Grub not being able to boot from anything other than a raid 1 array. However I had no problem at all with installation on a raid 6 array (5 disks) using mdadm.

What I did using Alternate 12.04 CD:

1. Choose Manual partion 2. Wipe all 5 drives 3. Assign all drives to a Raid 6 array 4.

degraded software raid boot 37 weeks 1 day ago

I've installed Ubuntu 12.04.1 in a new server and set up the 4 hard drives with 3 RAID 1 devices, the configuration is such that the first two drives have md0 (swap space) and md1 (/) with the third and fourth drives having md2 (/var).

I've been testing the operation under a drive failure and found that the system boots fine if I remove disk two but if I remove disk one then the system gets to gr

My BIOS has some problems and sometimes boot order of disks changes. I thought that if I insall grub on to the MBR of second data disk, it may boot. First disk(sda) is for boot and operating system, second disk(sdb) is for /var. All partitions are labeled and fsck has labels as partition references.

I have install grub on to MBR of second disk by "grub-install /dev/sdb".

I have a 5-disk Intel RAID 5 along with a 6th boot disk with /, /boot, and swap.

What I was planning to do was mount the Intel RAID partitions (which I've added with fdisk) so that the 6th disk /home, /var, /srv, etc. link to the RAID on the other 5 disks.

Server boot degraded RAID 37 weeks 1 day ago

I've installed Ubuntu 12.04.1 in a new server and set up the 4 hard drives with 3 RAID 1 devices, the configuration is such that the first two drives have md0 (swap space) and md1 (/) with the third and fourth drives having md2 (/var).

I've been testing the operation under a drive failure and found that the system boots fine if I remove disk two but if I remove disk one then the system gets to gr

I am trying to setup a raid 5 but when I do the boot block causes the first disk to go to extended when the rest do not have to. This then leaves me with one on extended and three not. That would be fine but then the raid 5 will not recognize the extended so I end up with raid 5 -1 for part of the array. I am thinking that if I could designate 0 to 25 on each disk that all will be well.