rhel 7—— /boot/grub2/grub.cfg

[root@bogon 桌面]# cat /etc/redhat-release
Red Hat Enterprise Linux Everything release 7.0 Beta (Maipo)
[root@bogon 桌面]# uname -a
Linux bogon 3.10.0-54.0.1.el7.x86_64 #1 SMP Tue Nov 26 16:51:22 EST 2013 x86_64 x86_64 x86_64 GNU/Linux
[root@bogon 桌面]#


[root@bogon 桌面]# gedit /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 ###
set pager=1

if [ -s $prefix/grubenv ]; then
  load_env
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="${saved_entry}"
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
}

terminal_output console
set timeout=5
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Red Hat Enterprise Linux Everything, with Linux 3.10.0-54.0.1.el7.x86_64' --class red --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.10.0-54.0.1.el7.x86_64-advanced-45caca60-9dcb-4089-b7f1-d4eef5ab1cc6' {
    load_video
    set gfxpayload=keep
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='hd0,msdos5'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5 --hint='hd0,msdos5'  733bdbba-1a79-4e34-84db-52c538c32e72
    else
      search --no-floppy --fs-uuid --set=root 733bdbba-1a79-4e34-84db-52c538c32e72
    fi
    linux16 /vmlinuz-3.10.0-54.0.1.el7.x86_64 root=UUID=45caca60-9dcb-4089-b7f1-d4eef5ab1cc6 ro vconsole.font=latarcyrheb-sun16 crashkernel=auto vconsole.keymap=us rhgb quiet LANG=zh_CN.UTF-8
    initrd16 /initramfs-3.10.0-54.0.1.el7.x86_64.img
}
menuentry 'Red Hat Enterprise Linux Everything, with Linux 2.6.32-279.el6.i686' --class red --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-2.6.32-279.el6.i686-advanced-45caca60-9dcb-4089-b7f1-d4eef5ab1cc6' {
    load_video
    set gfxpayload=keep
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='hd0,msdos5'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5 --hint='hd0,msdos5'  733bdbba-1a79-4e34-84db-52c538c32e72
    else
      search --no-floppy --fs-uuid --set=root 733bdbba-1a79-4e34-84db-52c538c32e72
    fi
    linux16 /vmlinuz-2.6.32-279.el6.i686 root=UUID=45caca60-9dcb-4089-b7f1-d4eef5ab1cc6 ro vconsole.font=latarcyrheb-sun16 crashkernel=auto vconsole.keymap=us rhgb quiet
    initrd16 /initramfs-2.6.32-279.el6.i686.img
}
menuentry 'Red Hat Enterprise Linux Everything, with Linux 0-rescue-02df7358696e4b83bf621e3880b2a509' --class red --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-0-rescue-02df7358696e4b83bf621e3880b2a509-advanced-45caca60-9dcb-4089-b7f1-d4eef5ab1cc6' {
    load_video
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='hd0,msdos5'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5 --hint='hd0,msdos5'  733bdbba-1a79-4e34-84db-52c538c32e72
    else
      search --no-floppy --fs-uuid --set=root 733bdbba-1a79-4e34-84db-52c538c32e72
    fi
    linux16 /vmlinuz-0-rescue-02df7358696e4b83bf621e3880b2a509 root=UUID=45caca60-9dcb-4089-b7f1-d4eef5ab1cc6 ro vconsole.font=latarcyrheb-sun16 crashkernel=auto vconsole.keymap=us rhgb quiet
    initrd16 /initramfs-0-rescue-02df7358696e4b83bf621e3880b2a509.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 ###
menuentry 'CentOS release 6.3 (Final) (on /dev/sda6)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-simple-812fcc25-82f9-47b9-b944-654a5daa5e1a' {
    insmod part_msdos
    insmod ext2
    set root='hd0,msdos5'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5 --hint='hd0,msdos5'  733bdbba-1a79-4e34-84db-52c538c32e72
    else
      search --no-floppy --fs-uuid --set=root 733bdbba-1a79-4e34-84db-52c538c32e72
    fi
    linux /vmlinuz-2.6.32-279.el6.i686 ro root=UUID=812fcc25-82f9-47b9-b944-654a5daa5e1a rd_NO_LUKS KEYBOARDTYPE=pc KEYTABLE=us rd_NO_MD crashkernel=auto LANG=zh_CN.UTF-8 rd_NO_LVM rd_NO_DM rhgb quiet
    initrd /initramfs-2.6.32-279.el6.i686.img
}
submenu 'Advanced options for CentOS release 6.3 (Final) (on /dev/sda6)' $menuentry_id_option 'osprober-gnulinux-advanced-812fcc25-82f9-47b9-b944-654a5daa5e1a' {
    menuentry 'CentOS (2.6.32-279.el6.i686) (on /dev/sda6)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz-2.6.32-279.el6.i686--812fcc25-82f9-47b9-b944-654a5daa5e1a' {
        insmod part_msdos
        insmod ext2
        set root='hd0,msdos5'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos5 --hint-efi=hd0,msdos5 --hint-baremetal=ahci0,msdos5 --hint='hd0,msdos5'  733bdbba-1a79-4e34-84db-52c538c32e72
        else
          search --no-floppy --fs-uuid --set=root 733bdbba-1a79-4e34-84db-52c538c32e72
        fi
        linux /vmlinuz-2.6.32-279.el6.i686 ro root=UUID=812fcc25-82f9-47b9-b944-654a5daa5e1a rd_NO_LUKS KEYBOARDTYPE=pc KEYTABLE=us rd_NO_MD crashkernel=auto LANG=zh_CN.UTF-8 rd_NO_LVM rd_NO_DM rhgb quiet
        initrd /initramfs-2.6.32-279.el6.i686.img
    }
}

### 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 ###

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