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Use growpart before resize2fs to expand full disk

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resize2fs only fills the partition. Need growpart first to
expand the partition to fill the disk, then resize2fs to
expand the filesystem.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Aaron D. Lee
2026-01-08 12:36:06 -05:00
parent 3d4a340305
commit df6125d098
1 changed files with 10 additions and 1 deletions
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11
rpi/first-boot-wizard.sh
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@@ -76,11 +76,20 @@ gum style --foreground 245 "Current: $CURRENT_SIZE"
echo ""
if gum confirm "Expand filesystem to fill SD card?" --default=true; then
# Get the disk device (strip partition number) and partition number
DISK_DEV=$(echo "$ROOT_DEV" | sed 's/p\?[0-9]*$//')
PART_NUM=$(echo "$ROOT_DEV" | grep -o '[0-9]*$')
# Step 1: Grow partition to fill disk
gum spin --spinner dot --title "Expanding partition..." -- sudo growpart "$DISK_DEV" "$PART_NUM" 2>/dev/null || true
# Step 2: Resize filesystem to fill partition
gum spin --spinner dot --title "Expanding filesystem..." -- sudo resize2fs "$ROOT_DEV" 2>/dev/null
NEW_SIZE=$(df -h / | awk 'NR==2 {print $2}')
gum style --foreground 82 "✓ Expanded to: $NEW_SIZE"
else
gum style --foreground 214 "→ Skipped (you can run 'sudo resize2fs $ROOT_DEV' later)"
gum style --foreground 214 "→ Skipped (run 'sudo growpart /dev/sdX 2 && sudo resize2fs /dev/sdX2' later)"
fi
sleep 1