[Bug 1311247] Re: [Grubenv] error: malformed file, press any key to continue

[dino99]

AS per /etc/grub.d/00_header, line 38

if [ "x${GRUB_DEFAULT}" = "x" ] ; then GRUB_DEFAULT=0 ; fi

so trying with a new grubenv made with:

oem at dev32:~$ sudo su
[sudo] password for oem: 
root at dev32:/home/oem# cd /boot/grub
root at dev32:/boot/grub# rm grubenv
root at dev32:/boot/grub# grub-editenv grubenv create
root at dev32:/boot/grub# grub-editenv grubenv set default="x"
root at dev32:/boot/grub# grub-editenv grubenv list

the returned value is: default=x , so 00_header rule should now
understand 'GRUB_DEFAULT=0' as it might and stop grubenv be rewriten
with garbage. hm, will see if its true or not.

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https://bugs.launchpad.net/bugs/1311247

Title:
  [Grubenv] error: malformed file, press any key to continue

Status in “grub2” package in Ubuntu:
  Confirmed

Bug description:
  I have just upgraded from 12.04 to 14.04

  Since the upgrade, when I boot up, the process stops and the normal
  grub screen is replaced after a short while by a message saying

  "error: malformed file, press any key to continue"

  Pressing a key allows booting to continue.

  Someone else who experienced this found that the problem went away
  after having re-installed grub.  I tried this but this did not resolve
  the problem for me.

  synaptic reports the grub package as 2.02~beta2-9

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