rawblock-io 0.2.0

Raw block device I/O with automatic strategy fallback and cross-platform device/mount resolution

rawblock-io

Raw block device I/O with automatic strategy fallback and cross-platform device/mount point resolution.

Features

• Pluggable I/O strategies — tries direct access first, falls back through loop-device backing file to sudo dd
• DirectIOStrategy — os.pread/os.pwrite on regular files and accessible block devices
• BackingFileStrategy — resolves loop-device backing files (/sys/block, losetup, or hdiutil on macOS)
• DDStrategy — sudo dd fallback for physical block devices
• resolve_device — find the underlying block device for any file path (Linux /proc/partitions + /sys/dev/block, macOS hdiutil)
• resolve_mount_point — find the mount point for any file path (Linux findmnt, macOS df)

Quick start

from rawblock_io import RawBlockIO, resolve_device

io = RawBlockIO()
device = resolve_device('/some/file')
data = io.read(device, 0, 512)  # read first sector

License

GPL-3.0-only