Usage: zbi [OUTPUT...] INPUT... [-- PATTERN...] Diagnostic switches: --help, -h print this message --list, -t list input ZBI item headers; no --output --verbose, -v show contents (e.g. BOOTFS file names) --extract, -x extract BOOTFS files --extract-items, -X extract items as pseudo-files (see below) --extract-raw, -R extract original payloads, not ZBI format Output file switches: --output=FILE, -o FILE output file name --depfile=FILE, -d FILE makefile dependency output file name --output-dir=DIR, -D FILE extracted files go under DIR (default: .) --json-output=FILE, -j FILE record entries to a JSON file The `--output` FILE is always removed and created fresh after all input files have been opened. So it is safe to use the same file name as an input file and the `--output` FILE, to append more items. Input control switches apply to subsequent input arguments: --directory=DIR, -C DIR change directory to DIR --files, -F read BOOTFS manifest files (default) --prefix=PREFIX, -p PREFIX prepend PREFIX/ to target file names --replace, -r duplicate target file name OK (see below) --type=TYPE, -T TYPE input files are TYPE items (see below) --compressed[=HOW], -c [HOW] compress storage images (see below) --uncompressed, -u do not compress storage images --recompress recompress input items already compressed --ignore-missing-files, -i a manifest entry whose source file doesn't exist is ignored without error Input arguments: --entry=TEXT, -e TEXT like an input file containing only TEXT FILE input or manifest file DIRECTORY directory tree copied to BOOTFS PREFIX/ The `--directory` or `-C` switch affects subsequent input arguments but it never affects output arguments, which are always relative to the original current working directory (`zbi` doesn't actually do `chdir()` at all). With `--files` or `-F` (the default state), files with ZBI_TYPE_CONTAINER headers are incomplete boot files and other files are BOOTFS manifest files. Each DIRECTORY is listed recursively and handled just like a manifest file using the path relative to DIRECTORY as the target name (before any PREFIX). Each `--prefix` or `-p` switch affects each file from a manifest or directory in subsequent FILE, DIRECTORY, or TEXT arguments. With `--type` or `-T`, input files are treated as TYPE instead of manifest files, and directories are not permitted. See below for the TYPE strings. ZBI items from input ZBI files are normally emitted unchanged. (However, see below about BOOTFS items.) With `--recompress`, input items of storage types well be decompressed (if needed) on input and then freshly compressed (or not) according to the preceding `--compressed=...` or `--uncompressed`. Format control switches (last switch affects all output): --complete=ARCH, -B ARCH verify result is a complete boot image --compressed[=HOW], -c [HOW] compress BOOTFS images (see below) --uncompressed, -u do not compress BOOTFS images HOW defaults to `zstd` and can be one of (case-insensitive): * `none` (same as `--uncompressed`) * `LEVEL` (an integer) or `max` (default algorithm, currently `zstd`) * `lz4f` or `lz4f.LEVEL` (an integer) or `lz4f.max` * `zstd` or `zstd.LEVEL` (an integer) or `zstd.max` or `zstd.overclock` The meaning of LEVEL depends on the algorithm. The default is chosen for good compression ratios with fast compression time. `max` is for the best compression ratios but much slower compression time (e.g. release builds). If there are no PATTERN arguments and no files named to add to the BOOTFS (via manifest file entries, nonempty directories, or `--entry` switches) then any ZBI input items of BOOTFS type are passed through as they are, except for possibly compressing raw `--type=bootfs` input items. In all other cases there is only a single BOOTFS item (if any) written out. So `-- \*` will force merging when no individual files are being added. The BOOTFS image contains all files from BOOTFS items in ZBI input files, manifest files, directories, and `--entry` switches. The BOOTFS directory table is always sorted. By default it's an error to have duplicate target file names in the input (even with the same source). `--replace` or `-r` allows it: the last entry in input order wins. **TODO(mcgrathr):** not quite true yet Each argument after -- is a shell filename PATTERN (`*` matches even `/`) to filter the files that will be packed into BOOTFS, extracted, or listed. For a PATTERN that starts with `!` or `^` matching names are excluded after including matches for all positive PATTERN arguments. Note that PATTERN is compared to the final BOOTFS target file name with any PREFIX applied. When extracting a single file, `--output` or `-o` can be used. Otherwise multiple files are created with their BOOTFS file names relative to PREFIX (default empty, so in the current directory). Note that the last PREFIX on the command line affects extraction, though each PREFIX also (first) affects BOOTFS files added due to arguments that follow it. So if any PREFIX appears before such input arguments when extracting, the extracted file names will have a doubled PREFIX unless a `--prefix=.` or other PREFIX value follows the input arguments. With `--extract-items` or `-X`, instead of BOOTFS files the names are synthesized as shown below, numbered in the order items appear in the input starting with 001. Output files are ZBI files that can be input later. With `--extract-raw` or `-R`, each file is written with just the uncompressed payload of the item and no ZBI headers. TYPE can be hexadecimal or a name string (case-insensitive). Extracted items use the file names shown below: --type --extract-item --extract-raw CONTAINER 001.zbi 001.bin KERNEL_X64 001.zbi 001.bin KERNEL_ARM64 001.zbi 001.bin DISCARD 001.zbi 001.bin RAMDISK 001.zbi 001.bin BOOTFS 001.zbi 001.bin BOOTFS_FACTORY 001.zbi 001.bin CMDLINE 001.zbi 001.txt CRASHLOG 001.zbi 001.bin NVRAM 001.zbi 001.bin PLATFORM_ID 001.zbi 001.bin CPU_CONFIG 001.zbi 001.bin CPU_TOPOLOGY 001.zbi 001.bin MEM_CONFIG 001.zbi 001.bin KERNEL_DRIVER 001.zbi 001.bin ACPI_RSDP 001.zbi 001.bin SMBIOS 001.zbi 001.bin EFI_MEMORY_MAP 001.zbi 001.bin EFI_SYSTEM_TABLE 001.zbi 001.bin E820_TABLE 001.zbi 001.bin FRAMEBUFFER 001.zbi 001.bin DRV_MAC_ADDRESS 001.zbi 001.bin DRV_PARTITION_MAP 001.zbi 001.bin DRV_BOARD_PRIVATE 001.zbi 001.bin DRV_BOARD_INFO 001.zbi 001.bin IMAGE_ARGS 001.zbi 001.txt BOOT_VERSION 001.zbi 001.bin HW_REBOOT_REASON 001.zbi 001.bin SERIAL_NUMBER 001.zbi 001.txt BOOTLOADER_FILE 001.zbi 001.bin DEVICETREE 001.zbi 001.dtb
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Last updated 2021-05-05 UTC.