[arch-releng] [DRAFT][RFC][PATCH][archiso] Add UEFI boot support via Linux >= 3.3 EFI boot stub.

[Gerardo Exequiel Pozzi]

----- Mensaje original -----
> De: Keshav P R <the.ridikulus.rat at gmail.com>
> Para: Arch Linux Release Engineering <arch-releng at archlinux.org>
> CC: 
> Enviado: martes, 20 de marzo de 2012 13:03
> Asunto: Re: [arch-releng] [DRAFT][RFC][PATCH][archiso] Add UEFI boot support via Linux >= 3.3 EFI boot stub.
> 
> On Tue, Mar 20, 2012 at 21:29, Gerardo Exequiel Pozzi
> <vmlinuz386 at yahoo.com.ar> wrote:
>>  Support is only added to x86_64. This only works via (U)EFI shell. Boot 
> with:
>> 
>>  fs0:\EFI\linux\vmlinuz.efi archisolabel=ARCH_201203 
> initrd=\EFI\linux\archiso.img
>> 
>>  There are plans to support command line options via a config file (not yet 
> in linux-3.3),
>>  in such case vmlinuz.efi can be renamed to bootia64.efi and placed to 
> \EFI\boot to automatic boot.
> 
> Should be bootx64.efi

oops, true. Thanks.

> 
>> 
>>  ---
>>   archiso/mkarchiso       |   11 ++++++++++-
>>   configs/releng/build.sh |   25 +++++++++++++++++++++++++
>>   2 files changed, 35 insertions(+), 1 deletion(-)
>> 
>>  diff --git a/archiso/mkarchiso b/archiso/mkarchiso
>>  index ad88b0b..208f7b6 100755
>>  --- a/archiso/mkarchiso
>>  +++ b/archiso/mkarchiso
>>  @@ -380,6 +380,8 @@ command_checksum () {
>> 
>>   # Create an ISO9660 filesystem from "iso" directory.
>>   command_iso () {
>>  +    local _iso_efi_boot_args
>>  +
>>      if [[ ! -f "${work_dir}/iso/isolinux/isolinux.bin" ]]; then
>>           _msg_error "The file 
> '${work_dir}/iso/isolinux/isolinux.bin' does not exist." 1
>>      fi
>>  @@ -387,6 +389,12 @@ command_iso () {
>>           _msg_error "The file 
> '${work_dir}/iso/isolinux/isohdpfx.bin' does not exist." 1
>>      fi
>> 
>>  +    if [[ -d "${work_dir}/iso/EFI" ]]; then
>>  +        _iso_efi_boot_args="-eltorito-alt-boot --efi-boot 
> EFI/archiso/archiso.fat -no-emul-boot"
>>  +    else
>>  +        _iso_efi_boot_args=""
>>  +    fi
>>  +
>>      _show_config iso
>> 
>>      if _is_directory_changed "${work_dir}/iso" 
> "${out_dir}/${img_name}"; then
>>  @@ -398,9 +406,10 @@ command_iso () {
>>          fi
>>          xorriso -as mkisofs ${_qflag} -r -l \
>>              -b isolinux/isolinux.bin -c isolinux/boot.cat \
>>  -            -iso-level 3 \
>>              -no-emul-boot -boot-load-size 4 -boot-info-table \
>>  +            ${_iso_efi_boot_args} \
>>              -isohybrid-mbr ${work_dir}/iso/isolinux/isohdpfx.bin \
>>  +            -iso-level 3 \
>>              -p "prepared by mkarchiso" \
>>              -publisher "${iso_publisher}" \
>>              -A "${iso_application}" \
>>  diff --git a/configs/releng/build.sh b/configs/releng/build.sh
>>  index 2faf210..f4ca11e 100755
>>  --- a/configs/releng/build.sh
>>  +++ b/configs/releng/build.sh
>>  @@ -58,6 +58,29 @@ make_boot() {
>>      fi
>>   }
>> 
>>  +# Prepare /EFI (using linux EFI boot stub)
>>  +make_boot_efi() {
>>  +    if [[ ! -e ${work_dir}/build.${FUNCNAME} ]]; then
>>  +        if [[ ${arch} == "x86_64" ]]; then
>>  +            mkdir -p ${work_dir}/iso/EFI/linux
>>  +            cp ${work_dir}/iso/${install_dir}/boot/x86_64/vmlinuz 
> ${work_dir}/iso/EFI/linux/vmlinuz.efi
>>  +            cp ${work_dir}/iso/${install_dir}/boot/x86_64/archiso.img 
> ${work_dir}/iso/EFI/linux/archiso.img
>>  +            # There are plans to support command line options via a config 
> file (not yet in linux-3.3)
>>  +            # echo "archisolabel=${iso_label} 
> initrd=\EFI\linux\archiso.img" | iconv -f ascii -t ucs2 > 
> ${work_dir}/iso/EFI/linux/vmlinuz.conf
>>  +            mkdir -p ${work_dir}/iso/EFI/archiso
>>  +            mkdir -p ${work_dir}/fat
>>  +            dd of=${work_dir}/iso/EFI/archiso/archiso.fat bs=1 seek=32M 
> count=0
>>  +            mkfs.vfat ${work_dir}/iso/EFI/archiso/archiso.fat
>>  +            mount ${work_dir}/iso/EFI/archiso/archiso.fat ${work_dir}/fat/
>>  +            mkdir -p ${work_dir}/fat/EFI/linux
>>  +            cp ${work_dir}/iso/EFI/linux/vmlinuz.efi 
> ${work_dir}/fat/EFI/linux
>>  +            cp ${work_dir}/iso/EFI/linux/archiso.img 
> ${work_dir}/fat/EFI/linux
>>  +            # cp ${work_dir}/iso/EFI/linux/vmlinuz.conf 
> ${work_dir}/fat/EFI/linux
>>  +            umount ${work_dir}/fat/
>>  +        fi
>>  +    fi
>>  +}
>>  +
>>   # Prepare /${install_dir}/boot/syslinux
>>   make_syslinux() {
>>      if [[ ! -e ${work_dir}/build.${FUNCNAME} ]]; then
>>  @@ -155,6 +178,7 @@ make_core_repo() {
>>      fi
>>   }
>> 
>>  +
>>   # Process aitab
>>   # args: $1 (core | netinstall)
>>   make_aitab() {
>>  @@ -259,6 +283,7 @@ make_common_single() {
>>      make_packages
>>      make_setup_mkinitcpio
>>      make_boot
>>  +    make_boot_efi
>>      make_syslinux
>>      make_isolinux
>>      make_customize_root_image
>>  --
>>  1.7.9.4
>> 
>