On 08/26/2012 02:10 PM, Heinz Diehl wrote:
On 26.08.2012, sean darcy wrote:

Not sure how to do this, since it won't boot. I'll try to email out of a
Live boot.

You can e.g. use sysresccd. Download an image here:

  http://www.sysresccd.org

You could e.g. run isohybrid on the image and copy it to an USB memory
stick and boot from it afterwards:

  isohybrid image.iso
  cat image.iso > /dev/sdX

And you are ready to go.


Did it slightly differently. Booted up the F17 Live cd. Then ran blkid and cat'd grub.cfg. But will download sysresccd. Looks like a better way.

[liveuser@localhost ~]$ blkid /dev/sda2
/dev/sda2: LABEL="root" UUID="89afb6ff-4fb2-4602-94b5-99dbf022b100" TYPE="ext4"

cat /run/media/liveuser/boot/grub2/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 $prefix/grubenv ]; then
  load_env
fi
set default="${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$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_msdos
insmod ext2
set root='hd0,msdos2'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 
--hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2 --hint='hd0,msdos2'  
89afb6ff-4fb2-4602-94b5-99dbf022b100
else
  search --no-floppy --fs-uuid --set=root 89afb6ff-4fb2-4602-94b5-99dbf022b100
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
set timeout=5
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Fedora' --class fedora --class gnu-linux --class gnu --class os 
$menuentry_id_option 'gnulinux-simple-89afb6ff-4fb2-4602-94b5-99dbf022b100' {
        load_video
        set gfxpayload=keep
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='hd0,msdos1'
        if [ x$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 --hint='hd0,msdos1'  
8a6ce784-d86f-4450-89f1-1aaea04e6bc9
        else
          search --no-floppy --fs-uuid --set=root 
8a6ce784-d86f-4450-89f1-1aaea04e6bc9
        fi
        echo    'Loading Linux 3.5.2-3.fc17.x86_64 ...'
        linux   /vmlinuz-3.5.2-3.fc17.x86_64 
root=UUID=89afb6ff-4fb2-4602-94b5-99dbf022b100 ro rd.md=0 rd.lvm=0 rd.dm=0 
SYSFONT=latarcyrheb-sun16  KEYTABLE=us rd.luks=0 LANG=en_US.UTF-8
        echo    'Loading initial ramdisk ...'
        initrd  /initramfs-3.5.2-3.fc17.x86_64.img
}
submenu 'Advanced options for Fedora' $menuentry_id_option 
'gnulinux-advanced-89afb6ff-4fb2-4602-94b5-99dbf022b100' {
        menuentry 'Fedora, with Linux 3.5.2-3.fc17.x86_64' --class fedora 
--class gnu-linux --class gnu --class os $menuentry_id_option 
'gnulinux-3.5.2-3.fc17.x86_64-advanced-89afb6ff-4fb2-4602-94b5-99dbf022b100' {
                load_video
                set gfxpayload=keep
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd0,msdos1'
                if [ x$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 
--hint='hd0,msdos1'  8a6ce784-d86f-4450-89f1-1aaea04e6bc9
                else
                  search --no-floppy --fs-uuid --set=root 
8a6ce784-d86f-4450-89f1-1aaea04e6bc9
                fi
                echo    'Loading Linux 3.5.2-3.fc17.x86_64 ...'
                linux   /vmlinuz-3.5.2-3.fc17.x86_64 
root=UUID=89afb6ff-4fb2-4602-94b5-99dbf022b100 ro rd.md=0 rd.lvm=0 rd.dm=0 
SYSFONT=latarcyrheb-sun16  KEYTABLE=us rd.luks=0 LANG=en_US.UTF-8
                echo    'Loading initial ramdisk ...'
                initrd  /initramfs-3.5.2-3.fc17.x86_64.img
        }
        menuentry 'Fedora, with Linux 3.5.2-3.fc17.x86_64 (recovery mode)' 
--class fedora --class gnu-linux --class gnu --class os $menuentry_id_option 
'gnulinux-3.5.2-3.fc17.x86_64-recovery-89afb6ff-4fb2-4602-94b5-99dbf022b100' {
                load_video
                set gfxpayload=keep
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd0,msdos1'
                if [ x$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 
--hint='hd0,msdos1'  8a6ce784-d86f-4450-89f1-1aaea04e6bc9
                else
                  search --no-floppy --fs-uuid --set=root 
8a6ce784-d86f-4450-89f1-1aaea04e6bc9
                fi
                echo    'Loading Linux 3.5.2-3.fc17.x86_64 ...'
                linux   /vmlinuz-3.5.2-3.fc17.x86_64 
root=UUID=89afb6ff-4fb2-4602-94b5-99dbf022b100 ro single rd.md=0 rd.lvm=0 
rd.dm=0 SYSFONT=latarcyrheb-sun16  KEYTABLE=us rd.luks=0 LANG=en_US.UTF-8
                echo    'Loading initial ramdisk ...'
                initrd  /initramfs-3.5.2-3.fc17.x86_64.img
        }
}

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

### 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 $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
[root@jay-samsung sdb1]# cat output
[liveuser@localhost ~]$ blkid /dev/sda2
/dev/sda2: LABEL="root" UUID="89afb6ff-4fb2-4602-94b5-99dbf022b100" TYPE="ext4"

cat /run/media/liveuser/boot/grub2/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 $prefix/grubenv ]; then
  load_env
fi
set default="${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$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_msdos
insmod ext2
set root='hd0,msdos2'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos2 
--hint-efi=hd0,msdos2 --hint-baremetal=ahci0,msdos2 --hint='hd0,msdos2'  
89afb6ff-4fb2-4602-94b5-99dbf022b100
else
  search --no-floppy --fs-uuid --set=root 89afb6ff-4fb2-4602-94b5-99dbf022b100
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
set timeout=5
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Fedora' --class fedora --class gnu-linux --class gnu --class os 
$menuentry_id_option 'gnulinux-simple-89afb6ff-4fb2-4602-94b5-99dbf022b100' {
        load_video
        set gfxpayload=keep
        insmod gzio
        insmod part_msdos
        insmod ext2
        set root='hd0,msdos1'
        if [ x$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 --hint='hd0,msdos1'  
8a6ce784-d86f-4450-89f1-1aaea04e6bc9
        else
          search --no-floppy --fs-uuid --set=root 
8a6ce784-d86f-4450-89f1-1aaea04e6bc9
        fi
        echo    'Loading Linux 3.5.2-3.fc17.x86_64 ...'
        linux   /vmlinuz-3.5.2-3.fc17.x86_64 
root=UUID=89afb6ff-4fb2-4602-94b5-99dbf022b100 ro rd.md=0 rd.lvm=0 rd.dm=0 
SYSFONT=latarcyrheb-sun16  KEYTABLE=us rd.luks=0 LANG=en_US.UTF-8
        echo    'Loading initial ramdisk ...'
        initrd  /initramfs-3.5.2-3.fc17.x86_64.img
}
submenu 'Advanced options for Fedora' $menuentry_id_option 
'gnulinux-advanced-89afb6ff-4fb2-4602-94b5-99dbf022b100' {
        menuentry 'Fedora, with Linux 3.5.2-3.fc17.x86_64' --class fedora 
--class gnu-linux --class gnu --class os $menuentry_id_option 
'gnulinux-3.5.2-3.fc17.x86_64-advanced-89afb6ff-4fb2-4602-94b5-99dbf022b100' {
                load_video
                set gfxpayload=keep
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd0,msdos1'
                if [ x$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 
--hint='hd0,msdos1'  8a6ce784-d86f-4450-89f1-1aaea04e6bc9
                else
                  search --no-floppy --fs-uuid --set=root 
8a6ce784-d86f-4450-89f1-1aaea04e6bc9
                fi
                echo    'Loading Linux 3.5.2-3.fc17.x86_64 ...'
                linux   /vmlinuz-3.5.2-3.fc17.x86_64 
root=UUID=89afb6ff-4fb2-4602-94b5-99dbf022b100 ro rd.md=0 rd.lvm=0 rd.dm=0 
SYSFONT=latarcyrheb-sun16  KEYTABLE=us rd.luks=0 LANG=en_US.UTF-8
                echo    'Loading initial ramdisk ...'
                initrd  /initramfs-3.5.2-3.fc17.x86_64.img
        }
        menuentry 'Fedora, with Linux 3.5.2-3.fc17.x86_64 (recovery mode)' 
--class fedora --class gnu-linux --class gnu --class os $menuentry_id_option 
'gnulinux-3.5.2-3.fc17.x86_64-recovery-89afb6ff-4fb2-4602-94b5-99dbf022b100' {
                load_video
                set gfxpayload=keep
                insmod gzio
                insmod part_msdos
                insmod ext2
                set root='hd0,msdos1'
                if [ x$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 
--hint='hd0,msdos1'  8a6ce784-d86f-4450-89f1-1aaea04e6bc9
                else
                  search --no-floppy --fs-uuid --set=root 
8a6ce784-d86f-4450-89f1-1aaea04e6bc9
                fi
                echo    'Loading Linux 3.5.2-3.fc17.x86_64 ...'
                linux   /vmlinuz-3.5.2-3.fc17.x86_64 
root=UUID=89afb6ff-4fb2-4602-94b5-99dbf022b100 ro single rd.md=0 rd.lvm=0 
rd.dm=0 SYSFONT=latarcyrheb-sun16  KEYTABLE=us rd.luks=0 LANG=en_US.UTF-8
                echo    'Loading initial ramdisk ...'
                initrd  /initramfs-3.5.2-3.fc17.x86_64.img
        }
}

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

### 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 ###

sean


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