Optional use of gdb in grub-mkrescue-sed.sh
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@ -1,6 +1,6 @@
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#!/bin/sh
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# Copyright (C) 2015
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# Copyright (C) 2015 - 2016
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# Thomas Schmitt <scdbackup@gmx.net>, libburnia-project.org
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# Provided under BSD license: Use, modify, and distribute as you like.
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@ -20,16 +20,17 @@ echo >&2
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# xorriso program. Default is the neighboring ../../xorriso/xorriso program or,
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# if that neighbor cannot be found, the system-wide installed xorriso.
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#
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# The mode "mjg" implements an experiment which should be accompanied by a
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# GNU xorriso built by
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# export CPPFLAGS="-DLibisofs_mjg_boot_for_grub2"
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# ./configure && make clean && make
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# The mode "mjg" implements a layout which resembles Fedora LiveCD and Debian
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# ISOs which are bootable by ISOLINUX for BIOS and GRUB2 for EFI.
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# Its GPT is considered to be surplus, according to UEFI specs.
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#
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# The mode "mbr_only" implements an alternative layout according to UEFI 2.4,
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# section 2.5.1 and table 16. No GTP, HFS+, or APM.
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#
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# The mode "mbr_hfs" is like "mbr_only" but with HFS+ mentioned in APM.
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# It is still compliant to UEFI with no potentially deceiving GPT.
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# If you add xorrisofs option -part_like_isohybrid then no gap fillig APM
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# partition will emerge.
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#
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# These modes avoid duplicate storing of the EFI system partition "efi.img"
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# by xorrisofs option -e "--interval:appended_partition_${partno}:all::"
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@ -175,7 +176,7 @@ then
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x=$(echo " $*" | sed \
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-e "s/-efi-boot-part --efi-boot-image/-no-pad -append_partition $partno 0xef \/tmp\/$efi_tmp_name/" \
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-e "s/--efi-boot efi\.img/-eltorito-alt-boot -e --interval:appended_partition_${partno}:all:: -no-emul-boot -isohybrid-gpt-basdat/" \
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-e "s/--protective-msdos-label/$protective/" \
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-e "s/--protective-msdos-label/$protective -part_like_isohybrid/" \
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)
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elif test x"$mode" = xmjg_copy
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@ -184,7 +185,7 @@ then
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x=$(echo " $*" | sed \
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-e "s/-efi-boot-part --efi-boot-image/-no-pad -append_partition $partno 0xef \/tmp\/$(basename "$dir")\/efi.img/" \
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-e "s/--efi-boot efi\.img/-eltorito-alt-boot -e efi.img -no-emul-boot -isohybrid-gpt-basdat/" \
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-e "s/--protective-msdos-label/$protective/" \
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-e "s/--protective-msdos-label/$protective -part_like_isohybrid/" \
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)
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elif test x"$mode" = xmbr_only
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@ -247,8 +248,18 @@ then
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fi
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# Run xorriso binary with the converted arguments
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"$xorriso" $MKRESCUE_SED_XORRISO_ARGS $x
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ret=$?
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use_gdb=no
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if test "$use_gdb" = yes
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then
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gdb_file=/tmp/grub-mkrescue-sed-gdb
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echo b assess_appended_gpt >$gdb_file
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echo run $MKRESCUE_SED_XORRISO_ARGS $x >>$gdb_file
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gdb -x $gdb_file "$xorriso"
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ret=0
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else
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"$xorriso" $MKRESCUE_SED_XORRISO_ARGS $x
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ret=$?
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fi
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# Move back the ESP if it was separated
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if test -n "$efi_tmp_name" -a -e /tmp/$efi_tmp_name
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