Public bug reported:
The 10_lupin script generates menu entries to boot Wubi installs. The following
entry has been created:
### BEGIN /etc/grub.d/10_lupin ###
menuentry "Ubuntu, Linux 2.6.38-7-generic" {
insmod ext2
set root='(/dev/loop0)'
search --no-floppy --fs-uuid --set=root 23b0f259-6cdd-4cd2-bc50-8febbcb784b0
loopback loop0 /ubuntu/disks/root.disk
set root=(loop0)
linux /boot/vmlinuz-2.6.38-7-generic root=UUID=80E4E195E4E18DAA
loop=/ubuntu/disks/root.disk ro quiet splash
initrd /boot/initrd.img-2.6.38-7-generic
}
The UUID 23bf... is the loop device /dev/loop0. The file
/ubuntu/disks/root.disk is not on the loop device, it's on the host
(UUID=80E4...). So to 1) set root to /dev/loop0 which it should be,
override to /dev/loop0 by uuid, and then try to loop mount
/ubuntu/disks/root.disk won't work.
I'm not sure exactly what the cause of the message is - but after selecting to
boot, the next screen you get a blank screen with:
"Error: file not found.
Press any key to continue"
After pressing a key it then boots normally.
This did not happen on the initial install, so I assume it's changed since
running updates.
I also noticed a flashed 'Error: file not found' just before the grub menu
displays. This also did not happen on the initial install.
Just for reference here is a copy of a Lucid version of a lupin
menuentry for Wubi. Note the differences of insmod ntfs, and setting
root to the partition (not loop device).
On a lucid wubi it looks similar to this:
### BEGIN /etc/grub.d/10_lupin ###
menuentry "Ubuntu, Linux 2.6.32-27-generic" {
insmod ntfs
set root='(hd0,2)'
search --no-floppy --fs-uuid --set 80E4E195E4E18DAA
loopback loop0 /ubuntu/disks/root.disk
set root=(loop0)
linux /boot/vmlinuz-2.6.32-27-generic root=/dev/sda2
loop=/ubuntu/disks/root.disk ro quiet splash
initrd /boot/initrd.img-2.6.32-27-generic
}
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: lupin-support 0.33
ProcVersionSignature: Ubuntu 2.6.38-7.36-generic 2.6.38
Uname: Linux 2.6.38-7-generic i686
Architecture: i386
Date: Sat Mar 19 10:52:15 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha i386 (20110314)
ProcEnviron:
LANGUAGE=en_US:en
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: lupin
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: lupin (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 natty running-unity
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https://bugs.launchpad.net/bugs/738345
Title:
Grub2 entries to boot Wubi incorrect... "Error: file not found, Press
any key to continue" at boot
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