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[build] Create util/genfsimg for building filesystem-based images

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Generalise util/geniso, util/gensdsk, and util/genefidsk to create a
single script util/genfsimg that can be used to build either FAT
filesystem images or ISO images.

Extend the functionality to allow for building multi-architecture UEFI
bootable ISO images and combined BIOS+UEFI images.

For example:

  ./util/genfsimg -o combined.iso \
      bin-x86_64-efi/ipxe.efi \
      bin-arm64-efi/ipxe.efi \
      bin/ipxe.lkrn

would generate a hybrid image that could be used as a CDROM (or hard
disk or USB key) on legacy BIOS, x86_64 UEFI, or ARM64 UEFI.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2021-01-13 11:50:26 +00:00
parent c42f31bc8a
commit 79c0173d6d
6 changed files with 260 additions and 308 deletions
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6
src/Makefile.efi
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@@ -49,6 +49,6 @@ $(BIN)/efidrv.cab : $(BIN)/alldrv.efis # $(ALL_drv.efi) is not yet defined
$(QM)$(ECHO) " [CAB] $@"
$(Q)$(LCAB) -n -q $(ALL_drv.efi) $@
$(BIN)/%.usb : $(BIN)/%.efi
$(QM)$(ECHO) " [GENEFIDSK] $@"
$(Q)bash util/genefidsk -o $@ -b $(EFI_BOOT_FILE) $<
$(BIN)/%.iso $(BIN)/%.usb : $(BIN)/%.efi util/genfsimg
$(QM)$(ECHO) " [GENFSIMG] $@"
$(Q)util/genfsimg -o $@ $<