Doesn't boot after installation

Posted by jchysk on Ask Ubuntu See other posts from Ask Ubuntu or by jchysk
Published on 2012-12-14T16:35:42Z Indexed on 2012/12/14 17:18 UTC
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Downloaded Ubuntu 12.04.1-alternate-amd64

Installed to USB stick

Integrity check fails on ./install/netboot/ubuntu-installer/amd64/pxelinux.cfg/default but that seems to be a known bug where the file isn't included in the alternative 64-bit ISO and shouldn't affect installation. I ignore it and proceed on.

For partitioning on 2 SSD Drives:

  1. Partition 300MB and 63GB on both
  2. RAID1 the 300MB and 63GBs
  3. Set the 300MB to EXT4 on /boot
  4. Encrypt the rest as MD1 and set it for LVM
  5. Create two volumes from MD1: 4GB swap and 59GB to /

I go through the installation and get to the point where it says everything is ready and to take the media out so as to boot from the drives

I receive the error "Error: No video mode activated." on startup

  • I've read that this can be solved by running "cp /usr/share/grub/*.pf2 /boot/grub" and then updating grub but I can't get to a place where I can actually run this command.
  • In rescue mode I can get to a shell from installer with /boot mounted to /target. So from there I can run "cp /cdrom/boot/grub/font.pf2 /target/grub/" but can't figure out a way to get it to update grub after that or know how what to change in manually updating the grub.cfg file. If I try other devices to mount the root filesystem I get the error "An error occurred while mounting the device you entered for your root file system".

It just sits on the video mode error and doesn't progress further. Googling around it seems like people see the error briefly before it continues booting, not getting stuck on it the way I am which leads me to believe that error may be unrelated to Ubuntu not booting.

So any ideas as to what I should try next or what needs to be done to install Ubuntu and get it to boot would be helpful.

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