書き込みデバイスの確認
# wodim --devices wodim: Overview of accessible drives (1 found) : ------------------------------------------------------------------------- 0 dev='/dev/sg0' rwrw-- : 'HL-DT-ST' 'RW/DVD GCC-4241N' -------------------------------------------------------------------------
ブランクCDを作り
# wodim dev=/dev/sg0 blank=all Device type : Removable CD-ROM Version : 5 Response Format: 2 Capabilities : Vendor_info : 'HL-DT-ST' Identification : 'RW/DVD GCC-4241N' Revision : 'A100' Device seems to be: Generic mmc2 DVD-ROM. Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr). Driver flags : MMC-3 SWABAUDIO BURNFREE Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R Speed set to 706 KB/s Starting to write CD/DVD at speed 4.0 in real BLANK mode for single session. Last chance to quit, starting real write in 0 seconds. Operation starts.
# wodim -v speed=0 dev=/dev/sg0 blank=all
isoイメージをブランクCDに disk at onece で書き込む
# wodim -dao dev=/dev/sg0 systemrescuecd-x86-3.7.1.iso Device type : Removable CD-ROM Version : 5 Response Format: 2 Capabilities : Vendor_info : 'HL-DT-ST' Identification : 'RW/DVD GCC-4241N' Revision : 'A100' Device seems to be: Generic mmc2 DVD-ROM. Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr). Driver flags : MMC-3 SWABAUDIO BURNFREE Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R Speed set to 706 KB/s Starting to write CD/DVD at speed 4.0 in real SAO mode for single session. Last chance to quit, starting real write in 0 seconds. Operation starts. Track 01: Total bytes read/written: 425893888/425893888 (207956 sectors).
ddでcdドライブからイメージを作り、これと書き込んだisoイメージの内容をmd5sumで比較。一致しているのでOK
# dd if=/dev/sr0 of=cd_image 831824+0 records in 831824+0 records out 425893888 bytes (426 MB) copied, 180.533 s, 2.4 MB/s # md5sum systemrescuecd-x86-3.7.1.iso cd_image 1bc0f967f0e1e3b860e866aa6329bb4b systemrescuecd-x86-3.7.1.iso 1bc0f967f0e1e3b860e866aa6329bb4b cd_image
cmpを使って比較する方法もある。
# cmp --print-bytes --verbose /dev/cdrw systemrescuecd-x86-3.7.1.iso