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VSAPMINFO(1) General Commands Manual VSAPMINFO(1)

NAME

vsapminfodetermines information about an Apple Partition Map (APM) volume system

SYNOPSIS

vsapminfo [-b bytes_per_sector] [-hvV] source

DESCRIPTION

vsapminfo is a utility to determine information about an Apple Partition Map (APM) volume system

vsapminfo is part of the libvsapm package. libvsapm is a library to access the Apple Partition Map (APM) volume system format

source is the source image.

The options are as follows:

bytes_per_sector
specify the number of bytes per sector (default is 512). Use this to override the automatic bytes per sector detection
shows this help
verbose output to stderr
print version

ENVIRONMENT

None

FILES

None

EXAMPLES

# vsapminfo /dev/sda
vsapminfo 20260626

Apple Partition Map (APM) information:
	Bytes per sector	: 512
	Number of partitions	: 2

Partition: 1
	Type			: Apple_HFS
	Name			: Foo
	Offset			: 33792 (0x00008400)
	Size			: 228352
	Status flags		: 0x0000007f
		Is valid
		Is allocated
		Is in use
		Contains boot information
		Is readable
		Is writeable
		Boot code is position independent

Partition: 2
	Type			: Apple_Free
	Name			: Extra
	Offset			: 32768 (0x00008000)
	Size			: 1024
	Status flags		: 0x00000000

DIAGNOSTICS

Errors, verbose and debug output are printed to stderr when verbose output -v is enabled. Verbose and debug output are only printed when enabled at compilation.

AUTHORS

Joachim Metz <joachim.metz@gmail.com>

BUGS

Please report bugs of any kind on the project issue tracker: https://github.com/libyal/libvsapm/issues

COPYRIGHT

Copyright (C) 2009-2026, Joachim Metz <joachim.metz@gmail.com>.

This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

June 26, 2026 Linux 6.4.0-150700.53.73-default