[Bug 736743] Re: environment block not implemented on btrfs

[Rovano]

For Information purposes only

Kubuntu 23.10

"error: sparse file not allowed. Press any key to continue ..."

It's not a problem, because a message appears for a few seconds and then
the system boot continues by itself.

I added 2 lines to the Grub.
/etc/default/grub
GRUB_DEFAULT=saved
GRUB_SAVEDEFAULT=true

/etc/fstab
/               btrfs   defaults,subvol=@ 0       1
/home           ext4    defaults        0       2
/boot/efi       vfat    umask=0077      0       1

fdisk -l
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Device        Start       End  Sectors  Size Type
/dev/sdX      2048  66447359 66445312 31,7G Linux filesystem ///system on btrfs
/dev/sdX  66447360 125042687 58595328 27,9G Linux root (x86) ///home on ext4
/dev/sdX        2048    1050623    1048576   512M EFI System ///boot/efi

** Changed in: grub
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/736743

Title:
  environment block not implemented on btrfs

Status in grub:
  Confirmed
Status in grub2 package in Ubuntu:
  Won't Fix

Bug description:
  Binary package hint: grub2

  I just installed natty alpha 3 on a samsung NC10 netbook. When booting, immediately after the grub screen I see the error message:
  'sparse file not allowed. 
  press any key to continue'
  after pressing any key the boot continues as normal.

  This is with btrfs on / and a separate ext4 partition for /home. I had
  created the btrfs partition manually (i.e. in a shell outside
  ubiquity) simply running mkfs.btrfs /dev/sda1 and it was not
  reformatted in ubiquity.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: grub-pc 1.99~rc1-4ubuntu1
  ProcVersionSignature: Ubuntu 2.6.38-6.34-generic 2.6.38-rc7
  Uname: Linux 2.6.38-6-generic i686
  Architecture: i386
  Date: Thu Mar 17 11:14:52 2011
  EcryptfsInUse: Yes
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110302)
  ProcEnviron:
   LANGUAGE=en_GB:en
   LANG=en_US.UTF-8
   LC_MESSAGES=en_GB.UTF-8
   SHELL=/bin/bash
  SourcePackage: grub2
  UpgradeStatus: No upgrade log present (probably fresh install)

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