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[ubuntu] "No boot disk has been detected" even after reinstalling grub

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http://ubuntuforums.org – I just moved and decided to keep my old hard drive with Precise installed on the first partition (now sda1) and my /home on sda3 (swap in the middle) but to leave my old computer and put my hard drive into a new one. I have not I swapped my hard drive for the one that came with the computer (it had Windows installed) and tried to boot up but got the message "ERROR: No boot disk has been detected or the disk has failed." I've tried a number of things to solve this problem, including reinstalling grub several times (which was more complicated than it sounds, because apparently with my (Hardware)

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Submitted by linuxfan on 10/13/2012

Stories similar to [ubuntu] "No boot disk has been detected" even after reinstalling grub

Post title explains it all, here is more info.

I have a server with 3 hard disks, here is the layout:

hard disk 1: /boot and swap partition (DEAD) hard disk 2: raid1 member hard disk 3: raid1 member

I installed the boot parition on a separate hard disk because I read somewhere that it was not advised to put the /boot partition inside a software RAID array (which is what I am currently u

I have an old hard disk drive (the ribbon one) that I see using usb has a boot partition but don't see anything else.

So, I thought to try to boot up the the disk (which is running legacy grub) over usb from grub2 to check it out.

But, google has failed me.

My machine has 2 separate physical disks, one for each OS. Windows (sda) and Ubuntu Linux (sdb). My Windows disk had "Vista Business x64" and the linux disk has Ubuntu 12.04. I recently upgraded Vista to "Win 7 Pro x64" and as expected, it screwed with the MBR and GRUB was not coming up at boot up time.

Hello all..:D I have a good Redhat 9 install on my hard drive. But I need to use this install on another computer. So I formatted an USB flash drive as ext3, installed grub in it and copied my existing / filesystem on the hard drive to the USB flash drive.

For testing the install, I disabled my hard drive, floppy drive and CDROM drive in the BIOS setup.

Custom raid partitions 3 years 22 weeks ago

Hello,

In terms of hard disk failure when using raid 1 setup, how important is to use one of the following (example) partition setups not to run in "GRUB hard disk error" if one of the disks fails.

Which method is prefered? To make "boot" partition or not?

1st:

* /boot 100 MB * /swap 1GB

Hi #!ers,My 6 years old Elonex Exentia pc wont boot from the Hard Drive. Pentium 4, 512ram, 200gb ATA.Working fine 5 hours ago, decided I would take #! ubuntu off the hard drive, was 4 booting with statler o/b and xfce, and a salix.all seemed to go well re- partitioned space from the #!

Today’s tip is once again using Disk Usage Analyzer that comes with Linux Mint and it is giving Windows XP another helping hand.

Hi, I created a installation disk on a usb. The installation looks fine. But when I remove usb and restart computer I get : ERROR : No boot disk has been detected or the disk had failed.

When I press F12 then I get : Please select boot device : UEFI : ST1000DM003-1CH162

If I leave the usb connected can choose to use it to reinstall or try it out.

That is what I've done to run boot-repair.

Hello...

I had ubuntu 11.04 installed on another complete hard drive thats not even connected with my main hard drive. see I Just unhooked my Windows vista hard drive. and put another drive to run ubuntu.