[Bug 948716] Re: grub-probe erroneously returns FAT UUID in lowercase

[Launchpad Bug Tracker]

** Branch linked: lp:~ilya-yanok/ubuntu/oneiric/grub2/fix-for-948716

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Title:
  grub-probe erroneously returns FAT UUID in lowercase

Status in “grub2” package in Ubuntu:
  Confirmed

Bug description:
  Here is the scenario/s:

  About a month ago I tried to setup Ubuntu using wubi. The install went
  well and I installed ubuntu to H partition there where three others C,
  E (HP TOOLS) OEM D (recovery) OEM and H the drive I setup for the
  Ubuntu install. I rebooted after the install and got the boot menu
  chose ubuntu and got this message (machine and config listed below):

  Try (hd0,0): no wubildr
  Try (hd0,1) no wubildr
  Try (hd0,2): error: "prefix" is not set

  I wiped the machine and reinstalled the OEM image and did the same
  setup and configuration to pick up a re-install later. I did setup
  Ubuntu to an external drive and boot to it using the BIOS to direct
  the computer to boot from the external drive. This works fine so I
  assume that the files are delivered and correct. I installed from a
  download ISO and installed it from disk.

  I have an HP G62 with Windows 7 Home Premium and I went to the Ubuntu
  site and downloaded the wubi setup software three days ago 3/3/12.
  Again the install when well. I got the boot menu, I can boot into Win7
  no problems. When I boot into Ubuntu I get these messages:

  Try (HD 0,0) NTFS: no wubildr
  Try (HD 0,1) NTFS: Error: "prefix" is not set.

  When I wait a couple of minutes I get:
  Gave up waiting for Root device. 
  Common problems:
  Boot args (cat/proc/cmdline) etc. etc. (lists causes)
  Check root etc. etc. (list causes)
  Missing modules etc. etc.

  Alert! /DEV/disk/by-ucid/1a16-46e4 does not exist
  dropping to shell Busybox v1.18.4

  initramfs

  The good thing is I have windows still working. The bad thing is I
  can't over-install, or un-install without a lot of hassle unless I
  become a boot manager mogul and hand build the boot strap.

  What I have done is use easyBCD to look around and it reports this:

  There are a total of 2 entries listed in the bootloader.

  Default: Windows 7
  Timeout: 10 seconds
  EasyBCD Boot Device: C:\

  Entry #1
  Name: Windows 7
  BCD ID: {current}
  Drive: C:\
  Bootloader Path: \Windows\system32\winload.exe

  Entry #2
  Name: Ubuntu
  BCD ID: {40b8ef84-5951-11e0-810e-f72a342c7c90}
  Drive: H:\
  Bootloader Path: \ubuntu\winboot\wubildr.mbr

  From the boot manager's point of view I have ubuntu installed to the
  right partition and I checked wubildr is there and so is a ubuntu
  folder. I checked the windows side and all the files and folders are
  in the right place.

   I checked the message boards and no one seems to have a good handle
  on what to do to fix the issue.

  
  If indeed easyBCD is correct the boot strap can't find the wubildr folder, whether the other files are installed in the ubuntu folder that are needed to get it up and running are in place I don't know.

  1. The version I think is 2 ubuntu2 or 11.04.1
  2. I would assume that with the time line above and the fact that I am using your wubi install you will know what versions and packages. I can't get the windows tools to tell me what version of Ubuntu was downloaded by wubi. I can't get into ubuntu or I would give that information to you. HINT: maybe you could add this stuff to the windows property sheets so troubleshooting would be easier.
  3. I downloaded wubi, ran it and what happened is listed above.
  4. I can't boot to Ubuntu
  5. What happened is listed above

  Finally, if you labelled the folders instead of grub to grub 2 and
  added information that the windows system can see you could get more
  information i.e. label the ubuntu folder ubuntu 11.04.1 or such and
  put in information that would register on the windows property sheet
  we could help you better.

  Obviously this is a severe level one bug. If you can install and get
  the OS up and running and don't provide for a painless un-install.

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