$ dd if=/dev/zero of=/boot/home/image.img bs=1024k count=400
400+0 records in
400+0 records out
$ mkbfs 2048 /boot/home/image.img backup
BFS w/2048 byte blocks successfully created on /boot/home/image.img as backup
BFS Dump:
fd 3 dev_block_size 512 dev_block_conversion 4
tmp block data @ 0x8003a000
num bitmap blocks: 13
Disk Super Block:
name: backup
magic1: 0x42465331
fs byte order: big endian
block size: 2048
num blocks: 204800
num blocks used: 2387
inode size: 2048
magic2: 0xdd121031
num blocks per allocation group: 1
ag shift: 14
num ag's: 13
flags: 0x434c454e
magic3: 0x15b6830e
log start: 0 -- log end: 0
log area:       ag : 0  start : 14      len : 2048
root dir inode: ag : 8  start : 0       len : 1
indices inode:  ag : 0  start : 2062    len : 1
pad: 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0
------------------------------------------
nsid: -2147251712 nbitmap blocks 13 bv @ 0x80043000 bbm_sem 22274
sem 22272 fd 3 dev block size 512
inodes: root 0x80052800 index 0x80096800 name 0x80098800 size 0x80099800
create time 0x0 last m. time 0x8009a800
index list @ 0x0
log sem 22275 cur_log_end 0 cur_lh 0x8004bcc0 active_lh 0
completed log entries @ 0x0 tmp blocks @ 0x8003a000 tmp b. sem 22273
$ mkdir /backup
$  mount /boot/home/image.img /backup
$ unmount /backup
$ cdrecord
/boot/home/config/bin/cdrecord: No CD/DVD-Recorder device specified.
/boot/home/config/bin/cdrecord: Usage: /boot/home/config/bin/cdrecord [options]
track1...trackn
Options:
        -version        print version information and exit
        -v              increment general verbose level by one
        -V              increment SCSI command transport verbose level by one
        -debug          print additional debug messages
        dev=target      SCSI target to use as CD/DVD-Recorder
        timeout=#       set the default SCSI command timeout to #.
        driver=name     user supplied driver name, use with extreme care
        -checkdrive     check if a driver for the drive is present
        -prcap          print drive capabilities for MMC compliant drives
        -inq            do an inquiry for the drive end exit
        -scanbus        scan the SCSI bus end exit
        -reset          reset the SCSI bus with the cdrecorder (if possible)
        -ignsize        ignore the known size of a medium (may cause problems)
        -useinfo        use *.inf files to overwrite audio options.
        speed=#         set speed of drive
        blank=type      blank a CD-RW disc (see blank=help)
        fs=#            Set fifo size to # (0 to disable, default is 4 MB)
        -load           load the disk and exit (works only with tray loader)
        -eject          eject the disk after doing the work
        -dummy          do everything with laser turned off
        -msinfo         retrieve multi-session info for mkisofs >= 1.10
        -toc            retrieve and print TOC/PMA data
        -atip           retrieve and print ATIP data
        -multi          generate a TOC that allows multi session
                        In this case default track type is CD-ROM XA2
        -fix            fixate a corrupt or unfixated disk (generate a TOC)
        -nofix          do not fixate disk after writing tracks
        -force          force to continue on some errors to allow blanking bad d
isks
        -dao            Write disk in DAO mode. This option will go away in the
future.
        tsize=#         Length of valid data in next track
        padsize=#       Amount of padding for next track
        pregap=#        Amount of pre-gap sectors before next track
        defpregap=#     Amount of pre-gap sectors for all but track #1
        mcn=text        Set the media catalog number for this CD to 'text'
        isrc=text       Set the ISRC number for the next track to 'text'
        index=list      Set the index list for the next track to 'list'
        -audio          Subsequent tracks are CD-DA audio tracks
        -data           Subsequent tracks are CD-ROM data mode 1 (default)
        -mode2          Subsequent tracks are CD-ROM data mode 2
        -xa1            Subsequent tracks are CD-ROM XA mode 1
        -xa2            Subsequent tracks are CD-ROM XA mode 2
        -cdi            Subsequent tracks are CDI tracks
        -isosize        Use iso9660 file system size for next data track
        -preemp         Audio tracks are mastered with 50/15 s preemphasis
        -nopreemp       Audio tracks are mastered with no preemphasis (default)
        -pad            Pad data tracks with 15 zeroed sectors
                        Pad audio tracks to a multiple of 2352 bytes
        -nopad          Do not pad data tracks (default)
        -swab           Audio data source is byte-swapped (little-endian/Intel)
The type of the first track is used for the toc type.
Currently only form 1 tracks are supported.
$ cdrecord -v dev=0,4,0 speed=8 -dummy  -data /boot/home/image.img
Cdrecord 1.8 (powerpc-be-beos) Copyright (C) 1995-2000 Jg Schilling
TOC Type: 1 = CD-ROM
/boot/home/config/bin/cdrecord: WARNING: Cannot set priority on this OS.
/boot/home/config/bin/cdrecord: WARNING: This causes a high risk for buffer unde
rruns.
/boot/home/config/bin/cdrecord: Fifo not supported.
scsidev: '0,4,0'
scsibus: 0 target: 4 lun: 0
Using libscg version 'schily-0.1'
atapi: -1
Device type    : Removable CD-ROM
Version        : 2
Response Format: 2
Capabilities   : SYNC LINKED
Vendor_info    : 'MATSHITA'
Identifikation : 'CD-R   CW-7503  '
Revision       : '1.08'
Device seems to be: Generic mmc CD-R.
Using generic SCSI-3/mmc CD-R driver (mmc_cdr).
Driver flags   : SWABAUDIO
Drive buf size : 2090928 = 2041 KB
FIFO size      : 4194304 = 4096 KB
Track 01: data  400 MB
Total size:     459 MB (45:30.69) = 204802 sectors
Lout start:     459 MB (45:32/52) = 204802 sectors
Current Secsize: 2048
ATIP info from disk:
  Indicated writing power: 5
  Is not unrestricted
  Is not erasable
  Disk sub type: 3
  ATIP start of lead in:  -11634 (97:26/66)
  ATIP start of lead out: 338100 (75:10/00)
Disk type: Short strategy type (Phthalocyanine or similar)
Manuf. index: 3
Manufacturer: CMC Magnetics Corporation
Blocks total: 338100 Blocks current: 338100 Blocks remaining: 133298
Starting to write CD/DVD at speed 8 in dummy mode for single session.
Last chance to quit, starting dummy write in 1 seconds.
Starting new track at sector: 0
Track 01: 400 of 400 MB written.
Track 01: Total bytes read/written: 419430400/419430400 (204800 sectors).
Writing  time:  349.020s
Fixating...
WARNING: Some drives don't like fixation in dummy mode.
Fixating time:   37.591s
$ cdrecord -v dev=0,4,0 speed=8 -data /boot/home/image.img
Cdrecord 1.8 (powerpc-be-beos) Copyright (C) 1995-2000 Jg Schilling
TOC Type: 1 = CD-ROM
/boot/home/config/bin/cdrecord: WARNING: Cannot set priority on this OS.
/boot/home/config/bin/cdrecord: WARNING: This causes a high risk for buffer unde
rruns.
/boot/home/config/bin/cdrecord: Fifo not supported.
scsidev: '0,4,0'
scsibus: 0 target: 4 lun: 0
Using libscg version 'schily-0.1'
atapi: -1
Device type    : Removable CD-ROM
Version        : 2
Response Format: 2
Capabilities   : SYNC LINKED
Vendor_info    : 'MATSHITA'
Identifikation : 'CD-R   CW-7503  '
Revision       : '1.08'
Device seems to be: Generic mmc CD-R.
Using generic SCSI-3/mmc CD-R driver (mmc_cdr).
Driver flags   : SWABAUDIO
FIFO size      : 4194304 = 4096 KB
Track 01: data  400 MB
Total size:     459 MB (45:30.69) = 204802 sectors
Lout start:     459 MB (45:32/52) = 204802 sectors
/boot/home/config/bin/cdrecord: No Error. test unit ready: scsi sendcmd: fatal e
rror
CDB:  00 00 00 00 00 00
Sense Bytes:
Sense Key: 0x2 Not Ready, Segment 0
Sense Code: 0x3A Qual 0x02 (medium not present - tray open) Fru 0x0
Sense flags: Blk 0 (not valid)
/boot/home/config/bin/cdrecord: No disk / Wrong disk!
$ cdrecord -v dev=0,4,0 speed=8 -data /boot/home/image.img
Cdrecord 1.8 (powerpc-be-beos) Copyright (C) 1995-2000 Jg Schilling
TOC Type: 1 = CD-ROM
/boot/home/config/bin/cdrecord: WARNING: Cannot set priority on this OS.
/boot/home/config/bin/cdrecord: WARNING: This causes a high risk for buffer unde
rruns.
/boot/home/config/bin/cdrecord: Fifo not supported.
scsidev: '0,4,0'
scsibus: 0 target: 4 lun: 0
Using libscg version 'schily-0.1'
atapi: -1
/boot/home/config/bin/cdrecord: Cannot do inquiry for CD/DVD-Recorder.
/boot/home/config/bin/cdrecord: No Error. test unit ready: scsi sendcmd: fatal e
rror
CDB:  00 00 00 00 00 00
Sense Bytes:
Sense Key: 0x2 Not Ready, Segment 0
Sense Code: 0x04 Qual 0x01 (logical unit is in process of becoming ready) Fru 0x
0
Sense flags: Blk 0 (not valid)
cmd finished after 0.046s timeout 40s
$ cdrecord -v dev=0,4,0 speed=8 -data /boot/home/image.img
Cdrecord 1.8 (powerpc-be-beos) Copyright (C) 1995-2000 Jg Schilling
TOC Type: 1 = CD-ROM
/boot/home/config/bin/cdrecord: WARNING: Cannot set priority on this OS.
/boot/home/config/bin/cdrecord: WARNING: This causes a high risk for buffer unde
rruns.
/boot/home/config/bin/cdrecord: Fifo not supported.
scsidev: '0,4,0'
scsibus: 0 target: 4 lun: 0
Using libscg version 'schily-0.1'
atapi: -1
Device type    : Removable CD-ROM
Version        : 2
Response Format: 2
Capabilities   : SYNC LINKED
Vendor_info    : 'MATSHITA'
Identifikation : 'CD-R   CW-7503  '
Revision       : '1.08'
Device seems to be: Generic mmc CD-R.
Using generic SCSI-3/mmc CD-R driver (mmc_cdr).
Driver flags   : SWABAUDIO
Drive buf size : 2090928 = 2041 KB
FIFO size      : 4194304 = 4096 KB
Track 01: data  400 MB
Total size:     459 MB (45:30.69) = 204802 sectors
Lout start:     459 MB (45:32/52) = 204802 sectors
Current Secsize: 2048
ATIP info from disk:
  Indicated writing power: 5
  Is not unrestricted
  Is not erasable
  Disk sub type: 3
  ATIP start of lead in:  -11634 (97:26/66)
  ATIP start of lead out: 338100 (75:10/00)
Disk type: Short strategy type (Phthalocyanine or similar)
Manuf. index: 3
Manufacturer: CMC Magnetics Corporation
Blocks total: 338100 Blocks current: 338100 Blocks remaining: 133298
Starting to write CD/DVD at speed 8 in write mode for single session.
Last chance to quit, starting real write in 1 seconds.
Starting new track at sector: 0
Track 01: 400 of 400 MB written.
Track 01: Total bytes read/written: 419430400/419430400 (204800 sectors).
Writing  time:  360.966s
Fixating...
Fixating time:   38.039s
$