windows partitie verschijnt niet in grub

[Plux]

Mijn vraag

na een iets te enthousiaste reinstall van een linux installatie is grub even de weg kwijt op mijn pc en toont niet meer een windows installatie in het boot menu.. de windows installatie is er gelukkig nog wel en na enig vogelen heb ik wel wat relevante info gevonden..

relevante software en hardware die ik gebruik en wat ik geprobeerd heb

met osprober kwam er alleen een andere linux installatie naar boven, de windows installatie werd niet gevonden. maar met mount kwam ik oa de volgende code tegen

code:

/dev/sda6 on /media/koppola/Data type fuseblk (rw,nosuid,nodev,relatime,user_id=0,group_id=0,default_permissions,allow_other,blksize=4096,uhelper=udisks2)
/dev/sda4 on /media/koppola/Windows type fuseblk (rw,nosuid,nodev,relatime,user_id=0,group_id=0,default_permissions,allow_other,blksize=4096,uhelper=udisks2)

de tweede entry is dus de windows systeem/opstart schijf... sda4..
zijn er mensen met grub kennis of een eigen grub.cfg met daarin een windows directive, dan weet ik misschien hoe die eruit moet komen te zien in mijn eigen condig. wie weet kun je me helpen

mijn grub.cfg is als volgt...

code:

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
if [ "${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 recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; 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$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_gpt
insmod ext2
set root='hd0,gpt13'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt13 --hint-efi=hd0,gpt13 --hint-baremetal=ahci0,gpt13  5cfab3c6-c1e9-4d27-837a-5218b70f8cb0
else
  search --no-floppy --fs-uuid --set=root 5cfab3c6-c1e9-4d27-837a-5218b70f8cb0
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=en_US
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
  set timeout=10
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=hidden
    set timeout=10
  # Fallback hidden-timeout code in case the timeout_style feature is
  # unavailable.
  elif sleep --interruptible 10 ; then
    set timeout=10
  fi
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
if background_color 44,0,30,0; then
  clear
fi
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
    set gfxpayload="${1}"
    if [ "${1}" = "keep" ]; then
        set vt_handoff=vt.handoff=1
    else
        set vt_handoff=
    fi
}
if [ "${recordfail}" != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if hwmatch ${prefix}/gfxblacklist.txt 3; then
      if [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
menuentry 'Ubuntu' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-5cfab3c6-c1e9-4d27-837a-5218b70f8cb0' {
    recordfail
    load_video
    gfxmode $linux_gfx_mode
    insmod gzio
    if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
    insmod part_gpt
    insmod ext2
    set root='hd0,gpt13'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt13 --hint-efi=hd0,gpt13 --hint-baremetal=ahci0,gpt13  5cfab3c6-c1e9-4d27-837a-5218b70f8cb0
    else
      search --no-floppy --fs-uuid --set=root 5cfab3c6-c1e9-4d27-837a-5218b70f8cb0
    fi
        linux   /boot/vmlinuz-4.18.0-15-generic root=/dev/sda13 ro  quiet splash $vt_handoff
}
submenu 'Advanced options for Ubuntu' $menuentry_id_option 'gnulinux-advanced-5cfab3c6-c1e9-4d27-837a-5218b70f8cb0' {
    menuentry 'Ubuntu, with Linux 4.18.0-15-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.18.0-15-generic-advanced-5cfab3c6-c1e9-4d27-837a-5218b70f8cb0' {
        recordfail
        load_video
        gfxmode $linux_gfx_mode
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt13'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt13 --hint-efi=hd0,gpt13 --hint-baremetal=ahci0,gpt13  5cfab3c6-c1e9-4d27-837a-5218b70f8cb0
        else
          search --no-floppy --fs-uuid --set=root 5cfab3c6-c1e9-4d27-837a-5218b70f8cb0
        fi
        echo    'Loading Linux 4.18.0-15-generic ...'
            linux   /boot/vmlinuz-4.18.0-15-generic root=/dev/sda13 ro  quiet splash $vt_handoff
    }
    menuentry 'Ubuntu, with Linux 4.18.0-15-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.18.0-15-generic-recovery-5cfab3c6-c1e9-4d27-837a-5218b70f8cb0' {
        recordfail
        load_video
        insmod gzio
        if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt13'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt13 --hint-efi=hd0,gpt13 --hint-baremetal=ahci0,gpt13  5cfab3c6-c1e9-4d27-837a-5218b70f8cb0
        else
          search --no-floppy --fs-uuid --set=root 5cfab3c6-c1e9-4d27-837a-5218b70f8cb0
        fi
        echo    'Loading Linux 4.18.0-15-generic ...'
            linux   /boot/vmlinuz-4.18.0-15-generic root=/dev/sda13 ro recovery nomodeset 
    }
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry 'Memory test (memtest86+)' {
    insmod part_gpt
    insmod ext2
    set root='hd0,gpt13'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt13 --hint-efi=hd0,gpt13 --hint-baremetal=ahci0,gpt13  5cfab3c6-c1e9-4d27-837a-5218b70f8cb0
    else
      search --no-floppy --fs-uuid --set=root 5cfab3c6-c1e9-4d27-837a-5218b70f8cb0
    fi
    knetbsd /boot/memtest86+.elf
}
menuentry 'Memory test (memtest86+, serial console 115200)' {
    insmod part_gpt
    insmod ext2
    set root='hd0,gpt13'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt13 --hint-efi=hd0,gpt13 --hint-baremetal=ahci0,gpt13  5cfab3c6-c1e9-4d27-837a-5218b70f8cb0
    else
      search --no-floppy --fs-uuid --set=root 5cfab3c6-c1e9-4d27-837a-5218b70f8cb0
    fi
    linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Linux Mint 19.1 Tessa (19.1) (on /dev/sda12)' --class linuxmint --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-simple-230ffdee-0bc6-4ff4-9769-ee5b36c6f540' {
    insmod part_gpt
    insmod ext2
    set root='hd0,gpt12'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt12 --hint-efi=hd0,gpt12 --hint-baremetal=ahci0,gpt12  230ffdee-0bc6-4ff4-9769-ee5b36c6f540
    else
      search --no-floppy --fs-uuid --set=root 230ffdee-0bc6-4ff4-9769-ee5b36c6f540
    fi
    linux /boot/vmlinuz-4.15.0-20-generic root=UUID=230ffdee-0bc6-4ff4-9769-ee5b36c6f540 ro quiet splash $vt_handoff
    initrd /boot/initrd.img-4.15.0-20-generic
}
submenu 'Advanced options for Linux Mint 19.1 Tessa (19.1) (on /dev/sda12)' $menuentry_id_option 'osprober-gnulinux-advanced-230ffdee-0bc6-4ff4-9769-ee5b36c6f540' {
    menuentry 'Linux Mint 19.1 Cinnamon (on /dev/sda12)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-4.15.0-20-generic--230ffdee-0bc6-4ff4-9769-ee5b36c6f540' {
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt12'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt12 --hint-efi=hd0,gpt12 --hint-baremetal=ahci0,gpt12  230ffdee-0bc6-4ff4-9769-ee5b36c6f540
        else
          search --no-floppy --fs-uuid --set=root 230ffdee-0bc6-4ff4-9769-ee5b36c6f540
        fi
        linux /boot/vmlinuz-4.15.0-20-generic root=UUID=230ffdee-0bc6-4ff4-9769-ee5b36c6f540 ro quiet splash $vt_handoff
        initrd /boot/initrd.img-4.15.0-20-generic
    }
    menuentry 'Linux Mint 19.1 Cinnamon, met Linux 4.15.0-20-generic (on /dev/sda12)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-4.15.0-20-generic--230ffdee-0bc6-4ff4-9769-ee5b36c6f540' {
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt12'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt12 --hint-efi=hd0,gpt12 --hint-baremetal=ahci0,gpt12  230ffdee-0bc6-4ff4-9769-ee5b36c6f540
        else
          search --no-floppy --fs-uuid --set=root 230ffdee-0bc6-4ff4-9769-ee5b36c6f540
        fi
        linux /boot/vmlinuz-4.15.0-20-generic root=UUID=230ffdee-0bc6-4ff4-9769-ee5b36c6f540 ro quiet splash $vt_handoff
        initrd /boot/initrd.img-4.15.0-20-generic
    }
    menuentry 'Linux Mint 19.1 Cinnamon, met Linux 4.15.0-20-generic (recovery mode) (on /dev/sda12)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-4.15.0-20-generic-root=UUID=230ffdee-0bc6-4ff4-9769-ee5b36c6f540 ro recovery nomodeset-230ffdee-0bc6-4ff4-9769-ee5b36c6f540' {
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt12'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt12 --hint-efi=hd0,gpt12 --hint-baremetal=ahci0,gpt12  230ffdee-0bc6-4ff4-9769-ee5b36c6f540
        else
          search --no-floppy --fs-uuid --set=root 230ffdee-0bc6-4ff4-9769-ee5b36c6f540
        fi
        linux /boot/vmlinuz-4.15.0-20-generic root=UUID=230ffdee-0bc6-4ff4-9769-ee5b36c6f540 ro recovery nomodeset
        initrd /boot/initrd.img-4.15.0-20-generic
    }
}

set timeout_style=menu
if [ "${timeout}" = 0 ]; then
  set timeout=10
fi
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
### END /etc/grub.d/30_uefi-firmware ###

### 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

[bazzemans]

Voor het aanpassen van Grub heb ik, met beperkte Linux kennis, gebruik gemaakt van de Grub Customizer. Dan heb je in ieder geval een grafische user interface en is het een stuk makkelijker om vanuit de Linux install de windows installatie weer in het opstartmenu van Grub the krijgen.

[Room42]

Zelf zette ik beide bootloaders (Windows en Linux) altijd op hun eigen disk. Dan kon ik met het UEFI bootmenu kiezen van welke disk ik boot en daarmee dus Windows of Linux.

@Plux Zet je config nog even tussen [code]-tags, voor de leesbaarheid.

[ Voor 20% gewijzigd door Room42 op 21-11-2019 00:26 ]

[Hero of Time]

Welke bootmethode gebruik je? Ik ga nu even uit van UEFI. Als je bij de nieuwe installatie van Linux hebt opgegeven om nieuwe partities te maken of de ESP te formatteren, is de UEFI bootloader voor Windows weg. Die moet je herstellen via opstartherstel van Windows.

[Plux]

@Hero of Time klinkt goed, maar hoe kom ik in opstartherstel zonder naar windows te kunnen booten??


ik ga wel proberen een usb stick te maken

[Hero of Time]

Precies zo dus, via een install disk.