├── 001-add-linux-extra-to-syslinux.diff ├── LICENSE ├── boot ├── grub │ ├── grub.cfg │ └── script │ │ └── autoiso.cfg └── iso │ └── .keep ├── build ├── doc ├── starfield.png └── vimix.png ├── readme.md └── release /001-add-linux-extra-to-syslinux.diff: -------------------------------------------------------------------------------- 1 | diff --git a/grub-core/lib/syslinux_parse.c b/grub-core/lib/syslinux_parse.c 2 | index ff244d2e0..065efa184 100644 3 | --- a/grub-core/lib/syslinux_parse.c 4 | +++ b/grub-core/lib/syslinux_parse.c 5 | @@ -971,6 +971,7 @@ write_entry (struct output_buffer *outbuf, 6 | print_string (" linux$linux_suffix "); 7 | print_file (outbuf, menu, curentry->kernel_file, NULL); 8 | print_string (" "); 9 | + print_string (" $linux_extra "); 10 | if (curentry->append) 11 | { 12 | err = print (outbuf, curentry->append, grub_strlen (curentry->append)); 13 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 2, June 1991 3 | 4 | Copyright (C) 1989, 1991 Free Software Foundation, Inc., 5 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 6 | Everyone is permitted to copy and distribute verbatim copies 7 | of this license document, but changing it is not allowed. 8 | 9 | Preamble 10 | 11 | The licenses for most software are designed to take away your 12 | freedom to share and change it. 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If this is what you want to do, use the GNU Lesser General 339 | Public License instead of this License. 340 | 341 | -------------------------------------------------------------------------------- /boot/grub/grub.cfg: -------------------------------------------------------------------------------- 1 | if loadfont unicode ; then 2 | insmod gfxmenu 3 | insmod gfxterm 4 | insmod jpeg 5 | insmod png 6 | insmod vbe 7 | insmod vga 8 | set gfxmode=1920x1080,auto 9 | set gfxpayload=text 10 | #set theme=/boot/grub/themes/starfield/theme.txt 11 | #set theme=/boot/grub/themes/vimix/theme.txt 12 | #set theme=/boot/grub/themes/tela/theme.txt 13 | terminal_output gfxterm 14 | export theme 15 | fi 16 | 17 | menuentry "Scan ISOs" "${prefix}/script/autoiso.cfg" { 18 | set iso_dirs="/boot/iso" 19 | export iso_dirs 20 | configfile "$2" 21 | } 22 | -------------------------------------------------------------------------------- /boot/grub/script/autoiso.cfg: -------------------------------------------------------------------------------- 1 | # Copyright (C) 2023 Marcelo Politzer Couto 2 | # Copyright (C) 2010 Free Software Foundation, Inc. 3 | # 4 | # GRUB is free software: you can redistribute it and/or modify 5 | # it under the terms of the GNU General Public License as published by 6 | # the Free Software Foundation, either version 3 of the License, or 7 | # (at your option) any later version. 8 | # 9 | # GRUB is distributed in the hope that it will be useful, 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 | # GNU General Public License for more details. 13 | # 14 | # You should have received a copy of the GNU General Public License 15 | # along with GRUB. If not, see . 16 | 17 | # NOTE: iso_path sometimes has a special meaning to the next stage of the boot. 18 | 19 | function pathname { regexp -s 2:"$2" '^(\(.*\))/*(/.*)$' "$1"; } 20 | function devname { regexp -s "$2" '^(\(.*\)).*$' "$1"; } 21 | 22 | function isolinux_iso_entry { 23 | realdev="$1" 24 | iso_path="$2" 25 | loopdev="$3" 26 | 27 | if test -f /boot/isolinux/isolinux.cfg; then 28 | cfgpath=/boot/isolinux/isolinux.cfg 29 | elif test -f /syslinux/syslinux.cfg; then 30 | cfgpath=/syslinux/syslinux.cfg 31 | elif test -f /isolinux/isolinux.cfg; then 32 | cfgpath=/isolinux/isolinux.cfg 33 | elif test -f /boot/x86_64/loader/isolinux.cfg; then 34 | cfgpath=/boot/x86_64/loader/isolinux.cfg 35 | else 36 | return 1; 37 | fi 38 | 39 | echo isolinux based $iso_path: yes 40 | probe -s label -l $realdev 41 | menuentry "${indent}${iso_path} (isolinux)" "$realdev" "$iso_path" "$cfgpath" { 42 | set device="$2" 43 | set iso_path="$3" 44 | set cfgpath="$4" 45 | 46 | probe -s rootuuid -u $device 47 | loopback loop "${device}${iso_path}" 48 | set root=(loop) 49 | 50 | # this flag requires a hacked grub!! 51 | 52 | # language settings 53 | set linux_extra="$langset" 54 | 55 | # arch based 56 | set linux_extra="${linux_extra} img_dev=/dev/disk/by-uuid/$rootuuid img_loop=$iso_path earlymodules=loop" 57 | 58 | # gentoo based 59 | set linux_extra="${linux_extra} isofrom=$iso_path" 60 | 61 | # ubuntu based, fedora, opensuse, rosa 62 | set linux_extra="${linux_extra} iso-scan/filename=$iso_path" 63 | 64 | # antiX based 65 | set linux_extra="${linux_extra} from=all fromiso=$iso_path" 66 | 67 | # Grml Live Linux 68 | set linux_extra="${linux_extra} findiso=$iso_path" 69 | 70 | # sysrcd 71 | set linux_extra="${linux_extra} isoloop=$iso_path" 72 | 73 | # MagOS Linux (UIRD) 74 | set linux_extra="${linux_extra} uird.from=${iso_path},/MagOS uird.force scantimeout=3" 75 | 76 | # TODO: SUSE based 77 | set linux_extra="${linux_extra} isofrom_device=/dev/disk/by-uuid/$rootuuid isofrom_system=$iso_path" 78 | 79 | # others? 80 | set linux_extra="${linux_extra} isoboot=$iso_path" 81 | 82 | export linux_extra 83 | syslinux_configfile $cfgpath 84 | } 85 | return 0 86 | } 87 | 88 | function loopback_iso_entry { 89 | realdev="$1" 90 | iso_path="$2" 91 | loopdev="$3" 92 | 93 | if test -f /boot/grub/loopback.cfg; then 94 | cfgpath=/boot/grub/loopback.cfg 95 | elif test -f /grub/loopback.cfg; then 96 | cfgpath=/grub/loopback.cfg 97 | else 98 | return 1 99 | fi 100 | 101 | echo loopback.cfg $iso_path: yes 102 | menuentry "${indent}${iso_path} (loopback)" "$realdev" "$iso_path" "$cfgpath" { 103 | set device="$2" 104 | set iso_path="$3" 105 | set cfgpath="$4" 106 | 107 | loopback loop "${device}${iso_path}" 108 | set root=(loop) 109 | 110 | probe -s rootuuid -u $device 111 | export iso_path 112 | 113 | configfile $cfgpath 114 | loopback -d loop 115 | } 116 | return 0 117 | } 118 | 119 | function scan_isos { 120 | isodirs="$1" 121 | 122 | echo "scanning ..." 123 | for dev in (*); do 124 | for dir in $isodirs; do 125 | for file in ${dev}${dir}/*.iso ${dev}${dir}/*.ISO; do 126 | if ! test -f "$file"; then continue; fi 127 | 128 | pathname $file iso_path 129 | 130 | if ! loopback loopdev_scan "$file"; then continue; fi 131 | saved_root=$root 132 | set root=(loopdev_scan) 133 | 134 | if false; then true; 135 | elif loopback_iso_entry $dev $iso_path (loopdev_scan); then true; 136 | elif isolinux_iso_entry $dev $iso_path (loopdev_scan); then true; 137 | else true; fi 138 | 139 | set root=$saved_root 140 | loopback -d loopdev_scan 141 | done 142 | done 143 | done 144 | return 0 145 | } 146 | 147 | insmod part_gpt 148 | insmod part_msdos 149 | insmod regexp 150 | 151 | langcode="$lang" 152 | 153 | regexp -s langcode '(^..)' "$lang" 154 | langset="lang=${lang} debian-installer/language=${langcode} keyboard-configuration/layoutcode?=${langcode}" 155 | indent=" " #indent for menu entries 156 | 157 | scan_isos "$iso_dirs" 158 | -------------------------------------------------------------------------------- /boot/iso/.keep: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mpolitzer/grub-iso-multiboot/cd01b5c066080ab821d50bfbd61a568f3dc2a68f/boot/iso/.keep -------------------------------------------------------------------------------- /build: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | 3 | export GRUB_BRANCH=grub-2.06 4 | git clone --branch=$GRUB_BRANCH --depth=1 \ 5 | https://git.savannah.gnu.org/git/grub.git 6 | 7 | cd grub 8 | git apply ../001-add-linux-extra-to-syslinux.diff 9 | ./bootstrap 10 | ./configure --prefix=$PWD/usr/local --with-platform=efi 11 | make -j$(nproc) CFLAGS="-Wno-error" 12 | make install 13 | 14 | echo 'as root:' 15 | echo '# cd grub' 16 | echo '#./grub-install --boot-directory=../boot /dev/sdd' 17 | echo '# cd ../' 18 | echo '# tar cvf grub-iso-multiboot.tar.gz boot/' 19 | -------------------------------------------------------------------------------- /doc/starfield.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mpolitzer/grub-iso-multiboot/cd01b5c066080ab821d50bfbd61a568f3dc2a68f/doc/starfield.png -------------------------------------------------------------------------------- /doc/vimix.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mpolitzer/grub-iso-multiboot/cd01b5c066080ab821d50bfbd61a568f3dc2a68f/doc/vimix.png -------------------------------------------------------------------------------- /readme.md: -------------------------------------------------------------------------------- 1 | # [GRUB iso multiboot] 2 | 3 | + Auto detect and create entries for .iso files in /iso/ 4 | + Preserves its boot options! 5 | + Small and lean, few entries lots of images 6 | + new iso, same script. No need to tweak around (ymmv). 7 | 8 | ![preview with vimix](doc/vimix.png?raw=true "vimix") 9 | ![preview with starfield](doc/starfield.png?raw=true "starfield") 10 | 11 | If your pendrive is already formated to FAT skip to `2` 12 | 13 | ## 1. Installation Guide (clean disk) 14 | 15 | ``` 16 | export LABEL= 17 | ``` 18 | 19 | ### 1.1 Create a partition table: 20 | ``` 21 | # fdisk --wipe auto /dev/sdX 22 | g # GPT partition table 23 | n # new partition 24 | 1 # first 25 | # use the whole disk 26 | # use the whole disk 27 | w # write 28 | ``` 29 | 30 | ### 1.2 Format to FAT 31 | ``` 32 | # mkfs.fat -F32 -n $LABEL /dev/sdX1 33 | ``` 34 | 35 | ## Or with `gparted` 36 | 37 | ``` 38 | gparted /dev/sdX 39 | # Device -> Create Partition Table... -> select: msdos -> Apply 40 | # Partition -> New -> (configure options) -> Add 41 | Create as: Primary Partition 42 | File System: fat32 43 | Label: $LABEL 44 | # Apply all operations 45 | # Select partition /dev/sdX1 -> Left click -> Manage Flags -> Enable boot flag 46 | ``` 47 | 48 | ## 2. Installation Guide (formated disk) 49 | 50 | 51 | ### 2.1a mount 52 | ``` 53 | mkdir -p /tmp/$LABEL 54 | sudo mount /dev/disk/by-label/$LABEL /tmp/$LABEL 55 | ``` 56 | 57 | ### 2.1b mount (as a regular user) 58 | ``` 59 | pmount /dev/disk/by-label/$LABEL 60 | # adapt destination to the created folder in /media for the following commands 61 | # mount point will look something like this: /media/disk_by-label_$LABEL 62 | ``` 63 | 64 | ### 2.2 install grub & copy release files 65 | ``` 66 | sudo grub-install --force --removable --no-floppy \ 67 | --target=x86_64-efi \ 68 | --boot-directory=/tmp/$LABEL/boot/ \ 69 | --efi-directory=/mnt/$LABEL/ /dev/sdX 70 | tar xvf grub-iso-multiboot.tar.gz -C /tmp/$LABEL 71 | ``` 72 | 73 | ### 2.3a unmount 74 | ``` 75 | umount /tmp/$LABEL 76 | ``` 77 | 78 | ### 2.3b unmount 79 | ``` 80 | pumount /media/disk_by-label_$LABEL 81 | ``` 82 | 83 | ## 3. Adjusts 84 | 85 | ### 3.1 I want my GRUB to look like that 86 | 87 | Find a [theme](https://www.gnome-look.org/browse/cat/109/ord/rating/) you would 88 | like to use. The one from the screenshot above is 89 | [vimix](https://www.gnome-look.org/p/1009236/#files-panel). 90 | 91 | Move the theme contents to the `themes` folder of the instalation, like so: 92 | 93 | ``` 94 | mount /dev/disk/by-label/$LABEL /tmp/$LABEL 95 | tar xvf Vimix-1080p.tar.xz -C /tmp/ 96 | mv /tmp/Vimix-1080p/Vimix /tmp/$LABEL/boot/grub/themes/vimix 97 | ``` 98 | 99 | Double check that you have the `theme.txt` file in the correct place 100 | `/tmp/$LABEL/boot/grub/themes/vimix/theme.txt`. 101 | 102 | As the last step, select the theme in `/tmp/$LABEL/boot/grub/grub.cfg`: 103 | 104 | ```diff 105 | - set theme=/boot/grub/themes/starfield/theme.txt 106 | + set theme=/boot/grub/themes/vimix/theme.txt 107 | ``` 108 | 109 | release the pendrive. 110 | 111 | ``` 112 | umount /tmp/$LABEL 113 | ``` 114 | 115 | ## 4. Add isos to /boot/iso/ 116 | 117 | Menu entries will be populated according to the files present during boot. 118 | To add isos via terminal, just copy them over: 119 | 120 | ``` 121 | mount /dev/disk/by-label/$LABEL /tmp/$LABEL 122 | cp .iso /tmp/$LABEL/boot/iso/ 123 | umount /tmp/$LABEL 124 | ``` 125 | 126 | ## 5. Development 127 | 128 | A `Dockerfile` is provided to help building the project. 129 | It will setup a compilation environment 130 | 131 | ``` 132 | sudo qemu-system-x86_64 --enable-kvm /dev/sda -bios /usr/share/edk2-ovmf/OVMF_CODE.fd 133 | ``` 134 | -------------------------------------------------------------------------------- /release: -------------------------------------------------------------------------------- 1 | pushd grub && { 2 | ./grub-install --boot-directory=../boot dummy.img 3 | popd 4 | } 5 | tar cvf grub-iso-multiboot.tar.gz boot/ 6 | --------------------------------------------------------------------------------