mirror of
https://github.com/commaai/agnos-builder.git
synced 2026-09-07 17:03:41 +08:00
Adeeb Shihadeh
39 lines
1.1 KiB
Bash
Executable File
39 lines
1.1 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
# Variables
|
|
ROOTFS_DIR="build/agnos-rootfs"
|
|
IMAGE_NAME="agnos-btrfs-test.img"
|
|
IMAGE_SIZE="4G" # Adjust this according to your needs
|
|
|
|
# Create an empty image file
|
|
dd if=/dev/zero of=$IMAGE_NAME bs=1 count=0 seek=$IMAGE_SIZE
|
|
|
|
# Format the image with BTRFS, enabling compression for both data and metadata
|
|
mkfs.btrfs -f $IMAGE_NAME
|
|
|
|
# Create a loop device and mount it
|
|
LOOP_DEVICE=$(sudo losetup -f --show $IMAGE_NAME)
|
|
MOUNT_POINT=$(mktemp -d)
|
|
|
|
# Enable compression for the filesystem
|
|
sudo mount -o loop,compress-force=zlib:15 $LOOP_DEVICE $MOUNT_POINT
|
|
#sudo mount -o loop,compress=zlib:15,compress-force=zlib:15 $LOOP_DEVICE $MOUNT_POINT
|
|
#sudo mount -o loop $LOOP_DEVICE $MOUNT_POINT
|
|
|
|
# Copy the rootfs to the mounted image
|
|
sudo cp -a $ROOTFS_DIR/* $MOUNT_POINT/
|
|
|
|
#sudo btrfs filesystem defragment -r -v -clzo $MOUNT_POINT
|
|
|
|
# Unmount the image
|
|
sudo umount $MOUNT_POINT
|
|
|
|
# Detach the loop device
|
|
sudo losetup -d $LOOP_DEVICE
|
|
|
|
# Clean up the temporary mount point
|
|
rmdir $MOUNT_POINT
|
|
|
|
echo "BTRFS image $IMAGE_NAME with compression created successfully."
|
|
du -hs $IMAGE_NAME
|