SamyGO

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LD_LIBRARY_PATH=/usr/local/lib ./mkrfs
Usage:
mkrfs [-s sectors-per-cluster] [-S logical-sector-size] [-F fat-size] [-p [-u uid-bits]] [-V volume size] [-E] [-P] [-N]
      [-d dirname] [-v] [-l] [-c] OUT_FILE/FLASH_BLK_DEV

        -s sectors-per-cluster
                Must be a power of 2, i.e. 1, 2, 4, ... 64.
                The default is 2
        -S logical-sector-size
                Must be a power of 2, greater than or equal to 512,
                i.e. 512, 1024, 2048, 4096
                The default is 512
        -F fat-size
                The type of file allocation table used(16, 32 bit)
                If nothing is specified, fat-size is automatically selected.
        -d dirname
                <dirname> is the root of the filesystem to be created
        -l long-file-name
                Select whether support the long file name or not.
        -c make-compaction-image
        -p enable posix attribute
                This option support the UID and GID
                -u uid bits
                        Must be enabled -p option
                        Set value of UID bits within 16bit (1 ~ 15 bit)
                        The default is 8
        -V volume size(Byte)
        -E enable extended attribute
                This option support extended attribute
                Must be enabled this option to use selinux
                Because this option use 32bit UID/GID, must be disable -p option
        -P page-size-to-align
                Each area is aligned to NAND page size
                i.e. 0(no alignment), 2048, 4096, 8192, 16384
                The default is 4096, zero means disable to the alignment
        -N check=no
                This option support check=no name check option.
        -v verbose option

parse_params returns error

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LD_LIBRARY_PATH=/usr/local/lib ./mkrfs -d . -c ../test.rfs
No such file or directory. Retry after create new file by the 'dd' command

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dd if=/dev/zero of=../test.rfs bs=1M count=3
3+0 Datens?tze ein
3+0 Datens?tze aus
3145728 Bytes (3,1 MB) kopiert, 0,0418394 s, 75,2 MB/s

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LD_LIBRARY_PATH=/usr/local/lib ./mkrfs -d . -c ../test.rfs
Cluster size(4096) is too large or volume size(3145728) is too small to format the device to FAT16.
If you want to format the deivce to FAT16/32, retry to format after reduce the cluster size. Otherwise, retry to format the larger volume.
num_clusters 761 data area 761
create_pbr[519]: failed to calc_fat_sectors!

make_tables[968]: Cannot create PBR!

fat_format[1177]: Failed to make table!

fat_release_volume[314]: compaction

fat_release_volume[318]: last allocated cluster: 0 / 2
Fail to create compact RFS image

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dd if=/dev/zero of=../test.rfs bs=1M count=30
30+0 Datens?tze ein
30+0 Datens?tze aus
31457280 Bytes (31 MB) kopiert, 0,37949 s, 82,9 MB/s

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LD_LIBRARY_PATH=/usr/local/lib ./mkrfs -d . -c ../test.rfs
cannot create rfs file:Makefile
goto next entry
cannot create rfs file:locale_codeset.c
goto next entry
cannot create rfs file:all-charsets
.....
goto next entry
fat_create_symlink[2421]: Check here!

cannot create rfs file:libiconv_plug.so
goto next entry
cannot create rfs file:iso8859_3.h
fat_release_volume[314]: compaction

fat_release_volume[318]: last allocated cluster: 4732 / 7669
Success to create compact RFS image

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mkdir tt
sudo mount -o loop ../test.rfs tt
ll tt
insgesamt 316
-rwxr-xr-x  1 root root  28331 2011-01-15 19:35 libfat.h*
drwxr-xr-x 17 root root   4096 2011-01-15 19:35 libiconv.1/
-rwxr-xr-x  1 root root    545 2011-01-15 19:35 makefile*
-rwxr-xr-x  1 root root 127562 2011-01-15 19:35 mkrfs*
-rwxr-xr-x  1 root root  20891 2011-01-15 19:35 mkrfs.c*
-r-xr-xr-x  1 root root 131072 2011-01-15 19:35 $rfs_log.lo$*