switch to m4 for partable (#9)

popcorn-kernel · Jul 28, 2023 · 9c187f6 · 9c187f6
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commit 9c187f6
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Showing 2 changed files with 33 additions and 7 deletions.
diff --git a/cuteloader-sfd.awk b/cuteloader-sfd.awk
diff --git a/util/partable.m4 b/util/partable.m4
@@ -0,0 +1,33 @@
+# partable.m4 - Partitioning table for Cuteloader
+
+# the device name which Cuteloader will be installed
+define(`device_name', `/dev/sdb')dnl
+
+# the record label for the disk
+define(`reclabel_type', `mbr')dnl
+
+# the stage1 bootloader partition
+define(`STAGE1_START', `2048')dnl
+define(`STAGE1_SIZE', `1469440')dnl
+define(`STAGE1_TYPE', `0C')dnl
+
+# the stage2 bootloader (and ramdisk images) partition
+define(`STAGE2_START', `1471488')dnl
+define(`STAGE2_SIZE', `1469440')dnl
+define(`STAGE2_TYPE', `83')dnl
+
+# Run fdisk to get the device size and capture the output
+define(`FDISK_OUTPUT', `esyscmd(`fdisk -l `device_name)')dnl
+
+# Extract the line containing the device size information using grep
+define(`SIZE_LINE', `regexp(FDISK_OUTPUT, `^Disk `device_name)': ')dnl
+
+# Extract the total device size in sectors using awk
+define(`DEVICE_SIZE', `regexp(SIZE_LINE, ` ([0-9]+) sectors', ` \1')')dnl
+
+# Calculate the start and size of the third partition
+define(`PART3_START', `STAGE2_START + STAGE2_SIZE')dnl
+define(`PART3_SIZE', `DEVICE_SIZE - PART3_START')dnl
+
+# the third partition (freely available space)
+define(`PART3_TYPE', `83')dnl