01-20-2004
Hi,
I'm going to try to explain with an example...
If you have a file of 2049 bytes and if each block has a size of 2048 bytes, that file will occupy 2 blocks, wasting 4096-2049 bytes... got it ? With this in mind, if you have thousands of small files with a little more of 2048 bytes, you can try to reduce them and get some free disk space...
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LEARN ABOUT DEBIAN
mkudffs
MKUDFFS(1) System Management Commands MKUDFFS(1)
NAME
mkudffs - create an UDF filesystem
SYNOPSIS
mkudffs [ switches ] device [ blocks-count ]
DESCRIPTION
mkudffs is used to create a UDF filesystem on a device (usually a disk). device is the special file corresponding to the device (e.g
/dev/hdX). blocks-count is the number of blocks on the device. If omitted, mkudffs automagically figures the file system size.
OPTIONS
--help Display the usage and list of options.
-b,--blocksize= block-size
Specify the size of blocks in bytes. Valid block size vales are 1024, 2048 and 4096 bytes per block. If omitted, mkudffs block-size
is 2048.
-r,--udfrev= udf-revision
Specify the udf revision to use. Valid revisions are 0x0201, 0x0200, 0x0150, and 0x0102. If omitted, mkudffs udf-revision is 0x0201.
--lvid= logical-volume-ident
Specify the logical volume identifier.
--vid= volume-ident
Specify the volume identifier.
--vsid= volume-set-ident
Specify the volume set identifier.
--fsid= file-set-ident
Specify the file set identifier.
--strategy= strategy
Specify the allocation strategy to use. Valid strategies are 4 and 4096. If omitted, mkudffs strategy is based on the media-type.
--spartable= spartable-number
Specify the number of sparing tables to write to disc. Valid numbers are 1 - 4. This option implies --media-type=cdrw.
--media-type= media-type
Specify the media type. Valid media types are:
hd hard drive
dvd DVD (Digital Versatile Disc)
dvdram DVD-RAM (Digital Versatile Disc-Random Access Memory)
worm WORM (Write Once Ready Many)
mo MO (Magneto Optical)
cdrw CD-RW (CD Read-Write)
--space= space
freedbitmap Freed bitmap
freedtable Freed table
unallocbitmap Unallocated bitmap
unalloctable Unallocated table
--ad= ad
inicb Allocation Descriptors in ICB
short Short Allocation Descriptors
long Long Allocation Descriptors
--noefe
Don't Use Extended File Entries
--u8 Use 8-bit unicode for file names
--u16 Use 16-bit unicode for file names
--utf8 Use UTF-8 for file names
EXIT STATUS
mkudffs returns 0 if successful, non-zero if there are problems.
AUTHOR
Ben Fennema <bfennema@falcon.csc.calpoly.edu>
AVAILABILITY
mkudffs is part of the udftools package and is available from http://linux-udf.sourceforge.net.
udftools-1.0.0b2 2002-02-09 MKUDFFS(1)