[Bug 987739] Re: grub-probe: error: unknown filesystem.

[Shih-Yuan Lee]

** Description changed:

  Reproduce step:
  
  1. Download Ubuntu precise daily build.
  2. Make a live USB stick.
- 3. Boot to live system
- 4. Execute the attached script for stress test with root permission.
+ 3. Boot to live system by "Install Ubuntu"
+ 4. Change to VT 1
+ 5. Execute the attached script for stress test with root permission.
  # while :; do grub_test_fail.sh ; done
  
  P.S.
  Some PCs are OK, but some PCs are not.

** Description changed:

  Reproduce step:
  
  1. Download Ubuntu precise daily build.
- 2. Make a live USB stick.
+ 2. Make an Ubuntu live USB stick.
  3. Boot to live system by "Install Ubuntu"
- 4. Change to VT 1
+ 4. Switch to VT 1
  5. Execute the attached script for stress test with root permission.
  # while :; do grub_test_fail.sh ; done
  
  P.S.
  Some PCs are OK, but some PCs are not.

** Description changed:

  Reproduce step:
  
  1. Download Ubuntu precise daily build.
  2. Make an Ubuntu live USB stick.
  3. Boot to live system by "Install Ubuntu"
- 4. Switch to VT 1
+ 4. Switch to VT 1 by Ctrl+Alt+F1
  5. Execute the attached script for stress test with root permission.
  # while :; do grub_test_fail.sh ; done
  
  P.S.
  Some PCs are OK, but some PCs are not.

** Attachment added: "This script is modified to bypass the problem."
   https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/987739/+attachment/3101579/+files/grub_test_ok.sh

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https://bugs.launchpad.net/bugs/987739

Title:
  grub-probe: error: unknown filesystem.

Status in “grub2” package in Ubuntu:
  Confirmed

Bug description:
  Reproduce step:

  1. Download Ubuntu precise daily build.
  2. Make an Ubuntu live USB stick.
  3. Boot to live system by "Install Ubuntu"
  4. Switch to VT 1 by Ctrl+Alt+F1
  5. Execute the attached script for stress test with root permission.
  # while :; do grub_test_fail.sh ; done

  P.S.
  Some PCs are OK, but some PCs are not.

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