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310354
n00b
Joined: 01 Aug 2013
Posts: 59
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 Posted: Tue Nov 26, 2013 4:19 pm Post subject: [SOLVED] Grub not detecting Windows 7 |
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Hi, I have a problem: grub2 does not detect the Windows 7 boot partition, but only the Gentoo one, here are some information:
| Code: | fdisk -l
Disk /dev/sda: 750.2 GB, 750156374016 bytes, 1465149168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0xa51e1827
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 206847 102400 7 HPFS/NTFS/exFAT
/dev/sda2 206848 1198530559 599161856 7 HPFS/NTFS/exFAT
/dev/sda3 1198530560 1459816447 130642944 83 Linux
/dev/sda4 1459816448 1465147391 2665472 82 Linux swap / Solaris
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| Code: | cat /boot/grub/grub.cfg
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub2-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
load_env
fi
if [ "${next_entry}" ] ; then
set default="${next_entry}"
set next_entry=
save_env next_entry
set boot_once=true
else
set default="0"
fi
if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi
export menuentry_id_option
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}
function load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
}
if [ x$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_msdos
insmod ext2
set root='hd0,msdos3'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos3 --hint-efi=hd0,msdos3 --hint-baremetal=ahci0,msdos3 1019184f-525c-4204-b825-21a1893eee5a
else
search --no-floppy --fs-uuid --set=root 1019184f-525c-4204-b825-21a1893eee5a
fi
font="/usr/share/grub/unicode.pf2"
fi
if loadfont $font ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=
insmod gettext
fi
terminal_output gfxterm
if sleep --interruptible 0 ; then
set timeout=10
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Gentoo GNU/Linux' --class gentoo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-1019184f-525c-4204-b825-21a1893eee5a' {
load_video
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos3'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos3 --hint-efi=hd0,msdos3 --hint-baremetal=ahci0,msdos3 1019184f-525c-4204-b825-21a1893eee5a
else
search --no-floppy --fs-uuid --set=root 1019184f-525c-4204-b825-21a1893eee5a
fi
echo 'Loading Linux 3.10.17-gentoo ...'
linux /boot/kernel-3.10.17-gentoo root=/dev/sda3 ro
}
submenu 'Advanced options for Gentoo GNU/Linux' $menuentry_id_option 'gnulinux-advanced-1019184f-525c-4204-b825-21a1893eee5a' {
menuentry 'Gentoo GNU/Linux, with Linux 3.10.17-gentoo' --class gentoo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.10.17-gentoo-advanced-1019184f-525c-4204-b825-21a1893eee5a' {
load_video
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos3'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos3 --hint-efi=hd0,msdos3 --hint-baremetal=ahci0,msdos3 1019184f-525c-4204-b825-21a1893eee5a
else
search --no-floppy --fs-uuid --set=root 1019184f-525c-4204-b825-21a1893eee5a
fi
echo 'Loading Linux 3.10.17-gentoo ...'
linux /boot/kernel-3.10.17-gentoo root=/dev/sda3 ro
}
menuentry 'Gentoo GNU/Linux, with Linux 3.10.17-gentoo (recovery mode)' --class gentoo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.10.17-gentoo-recovery-1019184f-525c-4204-b825-21a1893eee5a' {
load_video
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos3'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos3 --hint-efi=hd0,msdos3 --hint-baremetal=ahci0,msdos3 1019184f-525c-4204-b825-21a1893eee5a
else
search --no-floppy --fs-uuid --set=root 1019184f-525c-4204-b825-21a1893eee5a
fi
echo 'Loading Linux 3.10.17-gentoo ...'
linux /boot/kernel-3.10.17-gentoo root=/dev/sda3 ro single
}
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###
### BEGIN /etc/grub.d/41_custom ###
if [ -f ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ### |
I followed the Gentoo handbook (en) to install (on MBR of /dev/sda) and configure (I used grub2-mkconfig -o /boot/grub/grub.cfg to generate the config file) grub2 . I also asked in #gentoo irc for this, and someone told me that it is normal because Windows 7 was installed in 'legacy mode' (but I don't know what it means). Thanks in advance, now I am restoring the MBR with Windows 7 repair disk waiting for solutions :)
Last edited by 310354 on Tue Dec 03, 2013 12:58 pm; edited 4 times in total |
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eyoung100
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Joined: 23 Jan 2004
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310354
n00b
Joined: 01 Aug 2013
Posts: 59
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| Posted: Tue Nov 26, 2013 5:49 pm Post subject: |
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| jobug29 wrote: | | post the entire contents of the RESULTS.txt file generated by the boot info script so we can see exactly your setup & boot process. Multi-boot: Arch linux, Ubuntu 13.04, Mint 13 & Windows 7 |
| Code: | cat RESULTS.txt
Boot Info Script 0.61 [1 April 2012]
============================= Boot Info Summary: ===============================
=> Grub2 (v1.99) is installed in the MBR of /dev/sda and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and looks
in partition 99 for .
sda1: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows Vista/7: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /bootmgr /Boot/BCD
sda2: __________________________________________________________________________
File system: ntfs
Boot sector type: Windows Vista/7: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System: Windows 7
Boot files: /Windows/System32/winload.exe
sda3: __________________________________________________________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: This is . ()
Boot files: /boot/grub/grub.cfg /etc/fstab
sda4: __________________________________________________________________________
File system: swap
Boot sector type: -
Boot sector info:
============================ Drive/Partition Info: =============================
Drive: sda _____________________________________________________________________
Disk /dev/sda: 750.2 GB, 750156374016 bytes, 1465149168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sda1 * 2,048 206,847 204,800 7 NTFS / exFAT / HPFS
/dev/sda2 206,848 1,198,530,559 1,198,323,712 7 NTFS / exFAT / HPFS
/dev/sda3 1,198,530,560 1,459,816,447 261,285,888 83 Linux
/dev/sda4 1,459,816,448 1,465,147,391 5,330,944 82 Linux swap / Solaris
"blkid" output: ________________________________________________________________
Device UUID TYPE LABEL
/dev/sda1 14DE6CBEDE6C99AE ntfs Riservato per il sistema
/dev/sda2 38F48EBEF48E7E3E ntfs windows
/dev/sda3 1019184f-525c-4204-b825-21a1893eee5a ext4
/dev/sda4 7732eee8-97b5-4c45-b09d-736f31101cb4 swap
================================ Mount points: =================================
Device Mount_Point Type Options
/dev/sda3 / ext4 (rw,noatime,commit=0)
=========================== sda3/boot/grub/grub.cfg: ===========================
--------------------------------------------------------------------------------
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub2-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
load_env
fi
if [ "${next_entry}" ] ; then
set default="${next_entry}"
set next_entry=
save_env next_entry
set boot_once=true
else
set default="0"
fi
if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi
export menuentry_id_option
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}
function load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
}
if [ x$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_msdos
insmod ext2
set root='hd0,msdos3'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos3 --hint-efi=hd0,msdos3 --hint-baremetal=ahci0,msdos3 1019184f-525c-4204-b825-21a1893eee5a
else
search --no-floppy --fs-uuid --set=root 1019184f-525c-4204-b825-21a1893eee5a
fi
font="/usr/share/grub/unicode.pf2"
fi
if loadfont $font ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=
insmod gettext
fi
terminal_output gfxterm
if sleep --interruptible 0 ; then
set timeout=10
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Gentoo GNU/Linux' --class gentoo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-1019184f-525c-4204-b825-21a1893eee5a' {
load_video
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos3'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos3 --hint-efi=hd0,msdos3 --hint-baremetal=ahci0,msdos3 1019184f-525c-4204-b825-21a1893eee5a
else
search --no-floppy --fs-uuid --set=root 1019184f-525c-4204-b825-21a1893eee5a
fi
echo 'Loading Linux 3.10.17-gentoo ...'
linux /boot/kernel-3.10.17-gentoo root=/dev/sda3 ro
}
submenu 'Advanced options for Gentoo GNU/Linux' $menuentry_id_option 'gnulinux-advanced-1019184f-525c-4204-b825-21a1893eee5a' {
menuentry 'Gentoo GNU/Linux, with Linux 3.10.17-gentoo' --class gentoo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.10.17-gentoo-advanced-1019184f-525c-4204-b825-21a1893eee5a' {
load_video
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos3'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos3 --hint-efi=hd0,msdos3 --hint-baremetal=ahci0,msdos3 1019184f-525c-4204-b825-21a1893eee5a
else
search --no-floppy --fs-uuid --set=root 1019184f-525c-4204-b825-21a1893eee5a
fi
echo 'Loading Linux 3.10.17-gentoo ...'
linux /boot/kernel-3.10.17-gentoo root=/dev/sda3 ro
}
menuentry 'Gentoo GNU/Linux, with Linux 3.10.17-gentoo (recovery mode)' --class gentoo --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.10.17-gentoo-recovery-1019184f-525c-4204-b825-21a1893eee5a' {
load_video
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos3'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos3 --hint-efi=hd0,msdos3 --hint-baremetal=ahci0,msdos3 1019184f-525c-4204-b825-21a1893eee5a
else
search --no-floppy --fs-uuid --set=root 1019184f-525c-4204-b825-21a1893eee5a
fi
echo 'Loading Linux 3.10.17-gentoo ...'
linux /boot/kernel-3.10.17-gentoo root=/dev/sda3 ro single
}
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/30_os-prober ###
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###
### BEGIN /etc/grub.d/41_custom ###
if [ -f ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
--------------------------------------------------------------------------------
=============================== sda3/etc/fstab: ================================
--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# noatime turns off atimes for increased performance (atimes normally aren't
# needed); notail increases performance of ReiserFS (at the expense of storage
# efficiency). It's safe to drop the noatime options if you want and to
# switch between notail / tail freely.
#
# The root filesystem should have a pass number of either 0 or 1.
# All other filesystems should have a pass number of 0 or greater than 1.
#
# See the manpage fstab(5) for more information.
#
# <fs> <mountpoint> <type> <opts> <dump/pass>
# NOTE: If your BOOT partition is ReiserFS, add the notail option to opts.
/dev/sda3 / ext4 noatime 0 1
/dev/sda4 none swap sw 0 0
--------------------------------------------------------------------------------
=================== sda3: Location of files loaded by Grub: ====================
GiB - GB File Fragment(s)
=============================== StdErr Messages: ===============================
cat: /tmp/BootInfo-zGtNjlOM/Tmp_Log: No such file or directory
No volume groups found
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creaker
l33t
Joined: 14 Jul 2012
Posts: 651
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| Posted: Tue Nov 26, 2013 9:50 pm Post subject: |
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| Do you have os-prober installed? You need it before running grub2-mkconfig. |
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310354
n00b
Joined: 01 Aug 2013
Posts: 59
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| Posted: Tue Nov 26, 2013 10:05 pm Post subject: |
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It didn't work.. Thanks, anyway |
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epsilon72
Guru
Joined: 20 Sep 2007
Posts: 568
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| Posted: Thu Nov 28, 2013 5:01 am Post subject: |
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| tant0c1b0, it looks like you need to install ' os-prober '. Emerge it and re-run grub2-mkconfig, like creaker said above. |
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luciano
Tux's lil' helper
Joined: 18 Nov 2004
Posts: 132
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| Posted: Thu Nov 28, 2013 8:11 pm Post subject: |
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| I had the same problem; the guys above are right. Install that package, and it should auto-detect when you run grub-config. |
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310354
n00b
Joined: 01 Aug 2013
Posts: 59
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| Posted: Thu Nov 28, 2013 9:47 pm Post subject: |
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| First of all, sorry for the wrong section (stupid..). Secondly: yep, I had to emerge os-prober and... It worked! Thank you all :) However, I had to re-emerge grub:2 in order to make os-prober find the Windows partition. How did you understand I missed os-prober? |
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creaker
l33t
Joined: 14 Jul 2012
Posts: 651
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| Posted: Tue Dec 03, 2013 7:43 am Post subject: |
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| tant0c1b0 wrote: | | How did you understand I missed os-prober? |
it is a most common mistake when grub doesn't see any other systems.
most of us passed this way |
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nenemsis5
n00b
Joined: 23 Oct 2007
Posts: 72
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| Posted: Tue Dec 03, 2013 9:59 am Post subject: |
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1) os-prober + grub2 dont work in chroot environment
2) after successfully installation of gentoo make
a) grub2-install /dev/sda
b) mkconfig -o /boot/grub/grub.cfg
c) emerge os-prober
d)reboot and start gentoo
e) exercute mkconfig -o /boot/grub/grub.cfg again
and grub2 will find also your windowX and your gentoo |
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creaker
l33t
Joined: 14 Jul 2012
Posts: 651
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| Posted: Tue Dec 03, 2013 12:10 pm Post subject: |
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| nenemsis5 wrote: | 1) os-prober + grub2 dont work in chroot environment
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it works, and finds all the systems, except the system, from which was chrooted. |
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310354
n00b
Joined: 01 Aug 2013
Posts: 59
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| Posted: Tue Dec 03, 2013 12:57 pm Post subject: |
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| Thanks all :) |
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kanliot
n00b
Joined: 05 Feb 2015
Posts: 1
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| Posted: Thu Feb 05, 2015 4:28 am Post subject: |
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had exactly the same problem on new gentoo install.
had to menuconfig the kernel to make the fuse library in addition to these steps. also had to reboot as modprobe fuse didn't seem to help grub-mkconfig find windows for some reason. I dono. it's working now tho. |
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