| Message ID | 20170307155020.2204-1-vmlinuz386@gmail.com |
|---|---|
| State | New |
| Headers | show |
Am 07.03.2017 um 16:50 schrieb Gerardo Exequiel Pozzi via arch-releng: > Support booting 64-bit Linux, from 32-bit EFI firmware. > > Only tested on qemu with ovmf, does not work at all. > cdrom mode: qemu stop with bad instruction address > hybrid mode: qemu just freeze at tianocore logo with a upper pixed dot. Are you sure you want to use syslinux for this? I tried this once with efilinux and had some success, but some problems as well. I am just asking because my experience with syslinux and EFI was very bad. Is this even a use case? What kind of machines come with 32 bit EFI?
On Fri, Mar 10, 2017 at 07:59:54PM +0100, Thomas Bächler wrote: > Am 07.03.2017 um 16:50 schrieb Gerardo Exequiel Pozzi via arch-releng: > > Support booting 64-bit Linux, from 32-bit EFI firmware. > > > > Only tested on qemu with ovmf, does not work at all. > > cdrom mode: qemu stop with bad instruction address > > hybrid mode: qemu just freeze at tianocore logo with a upper pixed dot. > > Are you sure you want to use syslinux for this? I tried this once with > efilinux and had some success, but some problems as well. I am just > asking because my experience with syslinux and EFI was very bad. > > Is this even a use case? What kind of machines come with 32 bit EFI? > > Atoms, some old Acer and Asus machines, early Intel Macs. I have a C2D iMac where the only distro installer that will work from EFI (without extra work) is Debian's. Also note that booting 64-bit Linux kernels from a 32-bit EFI is only something that's happened in the past couple of years, if I recall.
On 03/10/17 15:59, Thomas Bächler wrote: > Am 07.03.2017 um 16:50 schrieb Gerardo Exequiel Pozzi via arch-releng: >> Support booting 64-bit Linux, from 32-bit EFI firmware. >> >> Only tested on qemu with ovmf, does not work at all. >> cdrom mode: qemu stop with bad instruction address >> hybrid mode: qemu just freeze at tianocore logo with a upper pixed dot. > > Are you sure you want to use syslinux for this? I tried this once with > efilinux and had some success, but some problems as well. I am just > asking because my experience with syslinux and EFI was very bad. > > Is this even a use case? What kind of machines come with 32 bit EFI? > > Hi Thomas, I do not like it, indeed I denied some past requests in our bugtracker, because was a extreme corner case. But seems to be more common these days, so lets bring a opportunity. I want to first try syslinux since is the "natural" choice for ArchISO, but actually does not work, and I opened a ticket in syslinux bugtracker [#1] "[Bug 75] [EFI-32] booting "mixed" (x86_64) Linux 4.9/4.10 hang/reset (4.4 is OK)" efilinux is not updated since long time, who knows if build with current gnu-efi. The last last last... option will be grub if a found a simple way to use it. [#1] https://bugzilla.syslinux.org/show_bug.cgi?id=75
diff --git a/configs/releng/build.sh b/configs/releng/build.sh index 72b1e3f..17b929a 100755 --- a/configs/releng/build.sh +++ b/configs/releng/build.sh @@ -164,6 +164,18 @@ make_efi() { curl -o ${work_dir}/iso/EFI/shellx64_v2.efi https://raw.githubusercontent.com/tianocore/edk2/master/ShellBinPkg/UefiShell/X64/Shell.efi # EFI Shell 1.0 for non UEFI 2.3+ curl -o ${work_dir}/iso/EFI/shellx64_v1.efi https://raw.githubusercontent.com/tianocore/edk2/master/EdkShellBinPkg/FullShell/X64/Shell_Full.efi + + cp ${work_dir}/x86_64/airootfs/usr/lib/syslinux/efi32/syslinux.efi ${work_dir}/iso/EFI/boot/bootia32.efi + cp ${work_dir}/x86_64/airootfs/usr/lib/syslinux/efi32/ldlinux.e32 ${work_dir}/iso/EFI/boot/ + cp ${script_path}/efiboot/syslinux/syslinux.cfg ${work_dir}/iso/EFI/boot/ + + mkdir ${work_dir}/iso/EFI/syslinux + cp ${work_dir}/x86_64/airootfs/usr/lib/syslinux/efi32/libutil.c32 ${work_dir}/iso/EFI/syslinux/ + cp ${work_dir}/x86_64/airootfs/usr/lib/syslinux/efi32/menu.c32 ${work_dir}/iso/EFI/syslinux/ + + sed "s|%ARCHISO_LABEL%|${iso_label}|g; + s|%INSTALL_DIR%|${install_dir}|g" \ + ${script_path}/efiboot/syslinux/archiso-usb.cfg > ${work_dir}/iso/EFI/syslinux/archiso.cfg } # Prepare efiboot.img::/EFI for "El Torito" EFI boot mode @@ -199,6 +211,18 @@ make_efiboot() { cp ${work_dir}/iso/EFI/shellx64_v2.efi ${work_dir}/efiboot/EFI/ cp ${work_dir}/iso/EFI/shellx64_v1.efi ${work_dir}/efiboot/EFI/ + cp ${work_dir}/x86_64/airootfs/usr/lib/syslinux/efi32/syslinux.efi ${work_dir}/efiboot/EFI/boot/bootia32.efi + cp ${work_dir}/x86_64/airootfs/usr/lib/syslinux/efi32/ldlinux.e32 ${work_dir}/efiboot/EFI/boot/ + cp ${script_path}/efiboot/syslinux/syslinux.cfg ${work_dir}/efiboot/EFI/boot/ + + mkdir ${work_dir}/efiboot/EFI/syslinux + cp ${work_dir}/x86_64/airootfs/usr/lib/syslinux/efi32/libutil.c32 ${work_dir}/efiboot/EFI/syslinux/ + cp ${work_dir}/x86_64/airootfs/usr/lib/syslinux/efi32/menu.c32 ${work_dir}/efiboot/EFI/syslinux/ + + sed "s|%ARCHISO_LABEL%|${iso_label}|g; + s|%INSTALL_DIR%|${install_dir}|g" \ + ${script_path}/efiboot/syslinux/archiso-cd.cfg > ${work_dir}/efiboot/EFI/syslinux/archiso.cfg + umount -d ${work_dir}/efiboot } diff --git a/configs/releng/efiboot/syslinux/archiso-cd.cfg b/configs/releng/efiboot/syslinux/archiso-cd.cfg new file mode 100644 index 0000000..aebe289 --- /dev/null +++ b/configs/releng/efiboot/syslinux/archiso-cd.cfg @@ -0,0 +1,7 @@ +UI menu.c32 + +LABEL arch64 +MENU LABEL Boot Arch Linux (x86_64) +LINUX /EFI/archiso/vmlinuz +INITRD /EFI/archiso/intel_ucode.img,/EFI/archiso/archiso.img +APPEND archisobasedir=%INSTALL_DIR% archisolabel=%ARCHISO_LABEL% diff --git a/configs/releng/efiboot/syslinux/archiso-usb.cfg b/configs/releng/efiboot/syslinux/archiso-usb.cfg new file mode 100644 index 0000000..03df5ca --- /dev/null +++ b/configs/releng/efiboot/syslinux/archiso-usb.cfg @@ -0,0 +1,7 @@ +UI menu.c32 + +LABEL arch64 +MENU LABEL Boot Arch Linux (x86_64) +LINUX /%INSTALL_DIR%/boot/x86_64/vmlinuz +INITRD /%INSTALL_DIR%/boot/intel_ucode.img,/%INSTALL_DIR%/boot/x86_64/archiso.img +APPEND archisobasedir=%INSTALL_DIR% archisolabel=%ARCHISO_LABEL% diff --git a/configs/releng/efiboot/syslinux/syslinux.cfg b/configs/releng/efiboot/syslinux/syslinux.cfg new file mode 100644 index 0000000..77b6407 --- /dev/null +++ b/configs/releng/efiboot/syslinux/syslinux.cfg @@ -0,0 +1,6 @@ +PATH /EFI/syslinux/ +DEFAULT loadconfig + +LABEL loadconfig + CONFIG /EFI/syslinux/archiso.cfg + APPEND /EFI/