Trouble with GRUB

[Agret]

I've been unable to boot my PC into linux after reinstalling Windows. The other day Steam came out of beta (had been previously running it on sabayon) so I decided i'll just "quickly reboot and reinstall grub". 9pm -1am much cursing and wiki reading and have gotten nowhere.

My root partition is /dev/sdd7 and formatted in btrfs, my boot partition is /dev/sdd5 and formatted in ext4.

I followed the Sabayon wiki on reinstalling GRUB and it put it as the bootloader and upon rebooting I got "Loading Grub." and then nothing. I then deleted grub.cfg and followed the second part of the tutorial about rebuilding the config from a chroot to my system (I used equo to update grub while I was at it in case a newer version fixed the bug) but no it just keeps getting stuck there. If I leave it for about 5 minutes it says "Welcome to Grub." and then nothing else but after leaving it for another 20 minutes or so it brings up a "grub error: no such partition" and gives me the "grub rescue>" prompt. I have no idea why it can't locate my boot partition.

This whole thing is driving me nuts and I'd love if someone could help .


[IMG]

[sabayonino]

please copy and paste the output file. don't upload any image (if don't need)

your grub2-mkconfig command is wront (where do you find it ? )

generating grub.cfg (not grub.c)

Code: Select all

# grub2-mkconfig -o /boot/grub2/grub.cfg

[Agret]

lol if you look at screenshot fully I never generated grub.c it was called grub.cfg, I just hit tab there.

Here is grub.cfg:

Code: Select all

#
# 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_fonts ###
### END /etc/grub.d/00_fonts ###

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  load_env
fi
set default="${saved_entry}"

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$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_msdos
insmod btrfs
set root='hd3,msdos7'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd3,msdos7 --hint-efi=hd3,msdos7 --hint-baremetal=ahci3,msdos7  78fcf02b-484a-4815-9d93-4d81a7dc8855
else
  search --no-floppy --fs-uuid --set=root 78fcf02b-484a-4815-9d93-4d81a7dc8855
fi
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=1024x768
  load_video
  # vga= is deprecated, grub2 handles this just fine
  # making grub2 res == linux fb res
  set gfxpayload=keep
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=en_US
  insmod gettext
fi
terminal_output gfxterm
insmod part_msdos
insmod ext2
set root='hd3,msdos5'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd3,msdos5 --hint-efi=hd3,msdos5 --hint-baremetal=ahci3,msdos5  bf9b6d52-96ed-41a8-b2da-c2a2a0c2b549
else
  search --no-floppy --fs-uuid --set=root bf9b6d52-96ed-41a8-b2da-c2a2a0c2b549
fi
insmod png
background_image -m stretch /grub/default-splash.png
if sleep --interruptible 0 ; then
  set timeout=5
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Sabayon GNU/Linux' --class sabayon --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-78fcf02b-484a-4815-9d93-4d81a7dc8855' {
   load_video
   insmod gzio
   insmod part_msdos
   insmod ext2
   set root='hd3,msdos5'
   if [ x$feature_platform_search_hint = xy ]; then
     search --no-floppy --fs-uuid --set=root --hint-bios=hd3,msdos5 --hint-efi=hd3,msdos5 --hint-baremetal=ahci3,msdos5  bf9b6d52-96ed-41a8-b2da-c2a2a0c2b549
   else
     search --no-floppy --fs-uuid --set=root bf9b6d52-96ed-41a8-b2da-c2a2a0c2b549
   fi
   echo   'Loading Linux x86_64-3.5.0-sabayon ...'
   linux   /kernel-genkernel-x86_64-3.5.0-sabayon ro  init=/linuxrc splash=silent,theme:sabayon video=vesafb:ywrap,mtrr:3 vga=791 gfxpayload=1024x768x16 console=tty1 quiet dokeymap keymap=us domdadm resume=swap:/dev/sde6 real_resume=/dev/sde6 root=UUID=78fcf02b-484a-4815-9d93-4d81a7dc8855 docrypt
   echo   'Loading initial ramdisk ...'
   initrd   /initramfs-genkernel-x86_64-3.5.0-sabayon
}
submenu 'Advanced options for Sabayon GNU/Linux' $menuentry_id_option 'gnulinux-advanced-78fcf02b-484a-4815-9d93-4d81a7dc8855' {
   menuentry 'Sabayon GNU/Linux, with Linux x86_64-3.5.0-sabayon' --class sabayon --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-x86_64-3.5.0-sabayon-advanced-78fcf02b-484a-4815-9d93-4d81a7dc8855' {
      load_video
      insmod gzio
      insmod part_msdos
      insmod ext2
      set root='hd3,msdos5'
      if [ x$feature_platform_search_hint = xy ]; then
        search --no-floppy --fs-uuid --set=root --hint-bios=hd3,msdos5 --hint-efi=hd3,msdos5 --hint-baremetal=ahci3,msdos5  bf9b6d52-96ed-41a8-b2da-c2a2a0c2b549
      else
        search --no-floppy --fs-uuid --set=root bf9b6d52-96ed-41a8-b2da-c2a2a0c2b549
      fi
      echo   'Loading Linux x86_64-3.5.0-sabayon ...'
      linux   /kernel-genkernel-x86_64-3.5.0-sabayon ro  init=/linuxrc splash=silent,theme:sabayon video=vesafb:ywrap,mtrr:3 vga=791 gfxpayload=1024x768x16 console=tty1 quiet dokeymap keymap=us domdadm resume=swap:/dev/sde6 real_resume=/dev/sde6 root=UUID=78fcf02b-484a-4815-9d93-4d81a7dc8855 docrypt
      echo   'Loading initial ramdisk ...'
      initrd   /initramfs-genkernel-x86_64-3.5.0-sabayon
   }
   menuentry 'Sabayon GNU/Linux, with Linux x86_64-3.5.0-sabayon (recovery mode)' --class sabayon --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-x86_64-3.5.0-sabayon-recovery-78fcf02b-484a-4815-9d93-4d81a7dc8855' {
      load_video
      insmod gzio
      insmod part_msdos
      insmod ext2
      set root='hd3,msdos5'
      if [ x$feature_platform_search_hint = xy ]; then
        search --no-floppy --fs-uuid --set=root --hint-bios=hd3,msdos5 --hint-efi=hd3,msdos5 --hint-baremetal=ahci3,msdos5  bf9b6d52-96ed-41a8-b2da-c2a2a0c2b549
      else
        search --no-floppy --fs-uuid --set=root bf9b6d52-96ed-41a8-b2da-c2a2a0c2b549
      fi
      echo   'Loading Linux x86_64-3.5.0-sabayon ...'
      linux   /kernel-genkernel-x86_64-3.5.0-sabayon ro single init_opts=single  init=/linuxrc splash=verbose,theme:sabayon video=vesafb:ywrap,mtrr:3 vga=791 gfxpayload=1024x768x16 console=tty1 quiet dokeymap keymap=us domdadm resume=swap:/dev/sde6 real_resume=/dev/sde6 root=UUID=78fcf02b-484a-4815-9d93-4d81a7dc8855 docrypt
      echo   'Loading initial ramdisk ...'
      initrd   /initramfs-genkernel-x86_64-3.5.0-sabayon
   }
}

### 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 ###
menuentry 'Windows 7 (loader) (on /dev/sda1)' --class windows --class os $menuentry_id_option 'osprober-chain-9038477A38475DFA' {
   insmod part_msdos
   insmod ntfs
   set root='hd0,msdos1'
   if [ x$feature_platform_search_hint = xy ]; then
     search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1  9038477A38475DFA
   else
     search --no-floppy --fs-uuid --set=root 9038477A38475DFA
   fi
   chainloader +1
}
menuentry 'Mac OS X (32-bit) (on /dev/sdb2)' --class osx --class darwin --class os $menuentry_id_option 'osprober-xnu-32-8e613d4da952402e'  {
   insmod part_gpt
   insmod hfsplus
   set root='hd1,gpt2'
   if [ x$feature_platform_search_hint = xy ]; then
     search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt2 --hint-efi=hd1,gpt2 --hint-baremetal=ahci1,gpt2  8e613d4da952402e
   else
     search --no-floppy --fs-uuid --set=root 8e613d4da952402e
   fi
        load_video
        set do_resume=0
        if [ /var/vm/sleepimage -nt10 / ]; then
           if xnu_resume /var/vm/sleepimage; then
             set do_resume=1
           fi
        fi
        if [ $do_resume = 0 ]; then
           xnu_uuid 8e613d4da952402e uuid
           if [ -f /Extra/DSDT.aml ]; then
              acpi -e /Extra/DSDT.aml
           fi
           if [ /kernelcache -nt /System/Library/Extensions ]; then
              xnu_kernel /kernelcache boot-uuid=${uuid} rd=*uuid
           else
              xnu_kernel /mach_kernel boot-uuid=${uuid} rd=*uuid
              if [ /System/Library/Extensions.mkext -nt /System/Library/Extensions ]; then
                xnu_mkext /System/Library/Extensions.mkext
              else
                xnu_kextdir /System/Library/Extensions
              fi
           fi
           if [ -f /Extra/Extensions.mkext ]; then
              xnu_mkext /Extra/Extensions.mkext
           fi
           if [ -d /Extra/Extensions ]; then
              xnu_kextdir /Extra/Extensions
           fi
           if [ -f /Extra/devprop.bin ]; then
              xnu_devprop_load /Extra/devprop.bin
           fi
           if [ -f /Extra/splash.jpg ]; then
              insmod jpeg
              xnu_splash /Extra/splash.jpg
           fi
           if [ -f /Extra/splash.png ]; then
              insmod png
              xnu_splash /Extra/splash.png
           fi
           if [ -f /Extra/splash.tga ]; then
              insmod tga
              xnu_splash /Extra/splash.tga
           fi
        fi
}
menuentry 'Mac OS X (64-bit) (on /dev/sdb2)' --class osx --class darwin --class os $menuentry_id_option 'osprober-xnu-64-8e613d4da952402e'  {
   insmod part_gpt
   insmod hfsplus
   set root='hd1,gpt2'
   if [ x$feature_platform_search_hint = xy ]; then
     search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt2 --hint-efi=hd1,gpt2 --hint-baremetal=ahci1,gpt2  8e613d4da952402e
   else
     search --no-floppy --fs-uuid --set=root 8e613d4da952402e
   fi
        load_video
        set do_resume=0
        if [ /var/vm/sleepimage -nt10 / ]; then
           if xnu_resume /var/vm/sleepimage; then
             set do_resume=1
           fi
        fi
        if [ $do_resume = 0 ]; then
           xnu_uuid 8e613d4da952402e uuid
           if [ -f /Extra/DSDT.aml ]; then
              acpi -e /Extra/DSDT.aml
           fi
           if [ /kernelcache -nt /System/Library/Extensions ]; then
              xnu_kernel64 /kernelcache boot-uuid=${uuid} rd=*uuid
           else
              xnu_kernel64 /mach_kernel boot-uuid=${uuid} rd=*uuid
              if [ /System/Library/Extensions.mkext -nt /System/Library/Extensions ]; then
                xnu_mkext /System/Library/Extensions.mkext
              else
                xnu_kextdir /System/Library/Extensions
              fi
           fi
           if [ -f /Extra/Extensions.mkext ]; then
              xnu_mkext /Extra/Extensions.mkext
           fi
           if [ -d /Extra/Extensions ]; then
              xnu_kextdir /Extra/Extensions
           fi
           if [ -f /Extra/devprop.bin ]; then
              xnu_devprop_load /Extra/devprop.bin
           fi
           if [ -f /Extra/splash.jpg ]; then
              insmod jpeg
              xnu_splash /Extra/splash.jpg
           fi
           if [ -f /Extra/splash.png ]; then
              insmod png
              xnu_splash /Extra/splash.png
           fi
           if [ -f /Extra/splash.tga ]; then
              insmod tga
              xnu_splash /Extra/splash.tga
           fi
        fi
}
menuentry 'Windows 7 (loader) (on /dev/sdd1)' --class windows --class os $menuentry_id_option 'osprober-chain-3628183F28180113' {
   insmod part_msdos
   insmod ntfs
   set root='hd3,msdos1'
   if [ x$feature_platform_search_hint = xy ]; then
     search --no-floppy --fs-uuid --set=root --hint-bios=hd3,msdos1 --hint-efi=hd3,msdos1 --hint-baremetal=ahci3,msdos1  3628183F28180113
   else
     search --no-floppy --fs-uuid --set=root 3628183F28180113
   fi
   chainloader +1
}
### 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 ###

Edited by Moderator to use Code BBCode.

[sabayonino]

Check BIOS boot priority

Install grub2 on /dev/sdd and make sure that BIOS first boot is /dev/sdd

In my case I Have :
/dev/sda --> data storage
/dev/sdb --> data storage
/dev/sdc ---> / (2 partitions /boot(ext4) /(btrfs) )
/dev/sdd ---> external data storage

I've installed grub on /dev/sdc
and set BIOS boot priority : fisrt boot device : /dev/sdc

good luck

[Agret]

Well grub is installed on /dev/sdd but it won't boot off it. I might have to try installing grub on a different drive hmm