git: 9d133c76402e - main - nanobsd: Get the code size by its partition index

The branch main has been updated by jlduran:

URL: https://cgit.FreeBSD.org/src/commit/?id=9d133c76402e769fd63ed838ad641572439cd126

commit 9d133c76402e769fd63ed838ad641572439cd126
Author:     Jose Luis Duran <jlduran@FreeBSD.org>
AuthorDate: 2026-05-27 00:13:15 +0000
Commit:     Jose Luis Duran <jlduran@FreeBSD.org>
CommitDate: 2026-05-27 00:13:15 +0000

    nanobsd: Get the code size by its partition index
    
    Previously the code was assumed to be on the on the first line of the
    _.partitioning file.  Instead, explicitly look up the size by its
    partition index to make the parsing order-independent.
    
    The _.partitioning file:
    
    1. First column: starting sector.
    2. Second column: size in 512-byte sectors.
    3. Third column: partition index.
    
    Get the code size by explicitly selecting when the partition index is 1.
    
    Reviewed by:    imp
    MFC after:      2 weeks
    Differential Revision:  https://reviews.freebsd.org/D57216
---
 tools/tools/nanobsd/legacy.sh | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/tools/nanobsd/legacy.sh b/tools/tools/nanobsd/legacy.sh
index 6ce477ea0c88..efe49bbf692c 100644
--- a/tools/tools/nanobsd/legacy.sh
+++ b/tools/tools/nanobsd/legacy.sh
@@ -111,7 +111,7 @@ create_code_slice() {
 	IMG=${NANO_DISKIMGDIR}/${NANO_IMG1NAME}
 	MNT=${NANO_OBJ}/_.mnt
 	mkdir -p ${MNT}
-	CODE_SIZE=$(head -n 1 ${NANO_LOG}/_.partitioning | awk '{ print $2 }')
+	CODE_SIZE=$(awk '$3 == 1 {print $2}' "${NANO_LOG}/_.partitioning")
 
 	if [ "${NANO_MD_BACKING}" = "swap" ] ; then
 		MD=$(mdconfig -a -t swap -s ${CODE_SIZE} -x ${NANO_SECTS} \
@@ -161,7 +161,7 @@ _create_code_slice() {
 
 	(
 	IMG=${NANO_DISKIMGDIR}/${NANO_IMG1NAME}
-	CODE_SIZE=$(head -n 1 "${NANO_LOG}/_.partitioning" | awk '{ print $2 }')
+	CODE_SIZE=$(awk '$3 == 1 {print $2}' "${NANO_LOG}/_.partitioning")
 	CODE_SIZE=$(_xxx_adjust_code_size "$CODE_SIZE")
 
 	echo "Writing code image..."
@@ -290,7 +290,7 @@ _create_diskimage() {
 	(
 	local altroot bootloader cfgimage dataimage diskimage
 
-	CODE_SIZE=$(head -n 1 "${NANO_LOG}/_.partitioning" | awk '{ print $2 }')
+	CODE_SIZE=$(awk '$3 == 1 {print $2}' "${NANO_LOG}/_.partitioning")
 	CODE_SIZE=$(_xxx_adjust_code_size "$CODE_SIZE")
 	IMG=${NANO_DISKIMGDIR}/${NANO_IMGNAME}