DUMPFS(8) - System Manager’s Manual # DUMPFS(8) - System Manager’s Manual
NAME # dumpfs - dump file system information
SYNOPSIS # dumpfs [-m] filesys | device
DESCRIPTION # dumpfs prints out the super block and cylinder group information for the file system or special device specified, unless -m is specified. The listing is very long and detailed.
dumpfs is useful mostly for finding out certain file system information such as the file system block size, minimum free space percentage, and the file system level that can be upgraded with the -c option of fsck_ffs(8).
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GROWFS(8) - System Manager’s Manual # GROWFS(8) - System Manager’s Manual
NAME # growfs - grow size of an existing ffs file system
SYNOPSIS # growfs [-Nqy] [-s size] special
DESCRIPTION # The growfs utility extends the newfs(8) program. Before starting growfs, the partition must be set to a larger size using disklabel(8). The growfs utility extends the size of the file system on the specified special file.
Currently growfs can only enlarge unmounted file systems.
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NEWFS(8) - System Manager’s Manual # NEWFS(8) - System Manager’s Manual
NAME # newfs, mount_mfs - construct a new file system
SYNOPSIS # newfs [-Nq] [-b block-size] [-c fragments-per-cylinder-group] [-e maxbpg] [-f frag-size] [-g avgfilesize] [-h avgfpdir] [-i bytes] [-m free-space] [-O filesystem-format] [-o optimization] [-S sector-size] [-s size] [-T disktype] [-t fstype] special
mount_mfs [-b block-size] [-c fragments-per-cylinder-group] [-e maxbpg] [-f frag-size] [-i bytes] [-m free-space] [-O filesystem-format] [-o options] [-P file] [-s size] special node
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TUNEFS(8) - System Manager’s Manual # TUNEFS(8) - System Manager’s Manual
NAME # tunefs - tune up an existing file system
SYNOPSIS # tunefs [-AFN] [-e maxbpg] [-g avgfilesize] [-h avgfpdir] [-m minfree] [-o optimize_preference] special | filesys
DESCRIPTION # tunefs is designed to change the dynamic parameters of a file system which affect the layout policies.
The options are as follows:
-A
Cause the values to be updated in all the alternate superblocks instead of just the standard superblock.
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