Grub2, Start-Skripte manipulieren. ISOs daraus Starten

### BEGIN /etc/grub.d/10_linux ###
menuentry 'openSUSE Leap 15.3'  --class opensuse --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-6ae8174d-b603-49a3-93a1-24437143467b' {
    load_video
    set gfxpayload=keep
    insmod gzio
    insmod part_gpt
    insmod ext2
    set root='hd0,gpt2'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 --hint='hd0,gpt2'  6ae8174d-b603-49a3-93a1-24437143467b
    else
      search --no-floppy --fs-uuid --set=root 6ae8174d-b603-49a3-93a1-24437143467b
    fi
    echo    'Loading Linux 5.3.18-59.37-default ...'
    linux    /boot/vmlinuz-5.3.18-59.37-default root=UUID=6ae8174d-b603-49a3-93a1-24437143467b  showopts loglevel=0 acpi_enforce_resources=lax intel_pstate=active nouveau.runpm=1 plymouth.enable=0
    echo    'Loading initial ramdisk ...'
    initrd    /boot/initrd-5.3.18-59.37-default
}
submenu 'Advanced options for openSUSE Leap 15.3' --hotkey=1 $menuentry_id_option 'gnulinux-advanced-6ae8174d-b603-49a3-93a1-24437143467b' {
    menuentry 'openSUSE Leap 15.3, with Linux 5.3.18-59.37-default' --hotkey=2 --class opensuse --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-5.3.18-59.37-default-advanced-6ae8174d-b603-49a3-93a1-24437143467b' {
        load_video
        set gfxpayload=keep
        insmod gzio
        insmod part_gpt
        insmod ext2
        set root='hd0,gpt2'
        if [ x$feature_platform_search_hint = xy ]; then
          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 --hint='hd0,gpt2'  6ae8174d-b603-49a3-93a1-24437143467b
        else
          search --no-floppy --fs-uuid --set=root 6ae8174d-b603-49a3-93a1-24437143467b
        fi
        echo    'Loading Linux 5.3.18-59.37-default ...'
        linux    /boot/vmlinuz-5.3.18-59.37-default root=UUID=6ae8174d-b603-49a3-93a1-24437143467b  showopts loglevel=0 acpi_enforce_resources=lax intel_pstate=active nouveau.runpm=1 plymouth.enable=0
        echo    'Loading initial ramdisk ...'
        initrd    /boot/initrd-5.3.18-59.37-default
    }
    
### 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 'openSUSE Leap 15.3 Memtest' --class opensuse --class memtest86 --class gnu --class tools $menuentry_id_option 'memtest-6ae8174d-b603-49a3-93a1-24437143467b' {
    insmod part_gpt
    insmod ext2
    set root='hd0,gpt2'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt2 --hint-efi=hd0,gpt2 --hint-baremetal=ahci0,gpt2 --hint='hd0,gpt2'  6ae8174d-b603-49a3-93a1-24437143467b
    else
      search --no-floppy --fs-uuid --set=root 6ae8174d-b603-49a3-93a1-24437143467b
    fi
    echo    'Loading memtest ...'
    linux16    /boot/memtest.bin
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows 7 (on /dev/sdb1)' --class windows --class os $menuentry_id_option 'osprober-chain-423A318E3A318049' {
    insmod part_msdos
    insmod ntfs
    set root='hd1,msdos1'
    if [ x$feature_platform_search_hint = xy ]; then
      search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 --hint='hd1,msdos1'  423A318E3A318049
    else
      search --no-floppy --fs-uuid --set=root 423A318E3A318049
    fi
    parttool ${root} hidden-
    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 ###

### BEGIN /etc/grub.d/80_suse_btrfs_snapshot ###
### END /etc/grub.d/80_suse_btrfs_snapshot ###

### BEGIN /etc/grub.d/90_persistent ###
### END /etc/grub.d/90_persistent ###

### BEGIN /etc/grub.d/95_textmode ###
if [ "${grub_platform}" = "efi" ]; then
  # On EFI systems we can only have graphics *or* serial, so allow the user
  # to switch between the two
  hiddenentry 'Text mode' --hotkey 't' {
    set textmode=true
    terminal_output console
  }
fi
### END /etc/grub.d/95_textmode ###

#!/bin/sh
exec tail -n +3 $0
# 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.
menuentry "SystemRescue (isoloop)" {
    load_video
    insmod gzio
    insmod part_gpt
    insmod part_msdos
    insmod ext2
    search --no-floppy --label boot --set=root
    loopback loop /boot/ISO/systemrescue.iso
    echo   'Loading kernel ...'
    linux  (loop)/sysresccd/boot/x86_64/vmlinuz img_label=boot img_loop=/boot/ISO/systemrescue.iso archisobasedir=sysresccd copytoram setkmap=de
    echo   'Loading initramfs ...'
    initrd (loop)/sysresccd/boot/x86_64/sysresccd.img
    }