[Bug 1258597] Re: Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported.

[Qwerty Dragon]

Did:
update-grub
Got:
Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported.
Now can only boot using recovery mode.

At the time of writing this, all updates, using "Software Updater" are applied, and problem still exists.
Linux vivid 3.19.0-12-generic #12-Ubuntu SMP Fri Apr 3 04:02:54 UTC 2015 i686 i686 i686 GNU/Linux
Description:	Ubuntu Vivid Vervet (development branch)

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https://bugs.launchpad.net/bugs/1258597

Title:
  Warning: Setting GRUB_TIMEOUT to a non-zero value when
  GRUB_HIDDEN_TIMEOUT is set is no longer supported.

Status in grub2 package in Ubuntu:
  Triaged
Status in grub2 source package in Trusty:
  Triaged

Bug description:
  When running update-grub I am getting the following message:

  Warning: Setting GRUB_TIMEOUT to a non-zero value when
  GRUB_HIDDEN_TIMEOUT is set is no longer supported.

  $ sudo update-grub
  Generowanie grub.cfg...
  Uwaga: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported.
  Znaleziono obraz Linuksa: /boot/vmlinuz-3.12.0-6-generic
  Znaleziono obraz initrd: /boot/initrd.img-3.12.0-6-generic
  Found memtest86+ image: /boot/memtest86+.elf
  gotowe

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: grub2 (not installed)
  ProcVersionSignature: Ubuntu 3.12.0-6.14-generic 3.12.3
  Uname: Linux 3.12.0-6-generic x86_64
  ApportVersion: 2.12.7-0ubuntu1
  Architecture: amd64
  CurrentDesktop: GNOME
  Date: Fri Dec  6 18:49:28 2013
  InstallationDate: Installed on 2013-10-15 (51 days ago)
  InstallationMedia: Ubuntu-GNOME 13.10 "Saucy Salamander" - Release amd64 (20131015)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=pl_PL.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub2
  UpgradeStatus: Upgraded to trusty on 2013-11-05 (31 days ago)

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