<div dir="ltr">2013/11/24 Colin Law <span dir="ltr"><<a href="mailto:clanlaw@googlemail.com" target="_blank">clanlaw@googlemail.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
On 24 November 2013 12:32, Johnny Rosenberg <<a href="mailto:gurus.knugum@gmail.com">gurus.knugum@gmail.com</a>> wrote:<br>
> 2013/11/24 Colin Law <<a href="mailto:clanlaw@googlemail.com">clanlaw@googlemail.com</a>><br>
>> ...<br>
<div class="im">>> What does the udisks command in your script show before and after blanking<br>
>> it?<br>
><br>
><br>
> They showed the same thing before and after blanking. Just to be sure, I'll<br>
> test that again right now:<br>
<br>
</div>Sorry, I was not clear enough,   I meant you to look at the complete<br>
output from udisks to see if there is any change at all after the<br>
erase.<br></blockquote><div><br></div><div>No, you wasn't clear enough… he he he… Well, now you are, so I'll try again…</div><div><br></div><div>Burning a nonsense-file to the disc right now with Brasero.</div><div>
Burning finished, open tray, insert CD again, wait for CD to be detected, then:</div><div>~$ udisks --show-info "${CdRom}"<br>Showing information for /org/freedesktop/UDisks/devices/sr0<br>  native-path:                 /sys/devices/pci0000:00/0000:00:1f.1/host0/target0:0:1/0:0:1:0/block/sr0<br>
  device:                      11:0<br>  device-file:                 /dev/sr0<br>    presentation:              /dev/sr0<br>    by-id:                     /dev/disk/by-id/ata-Optiarc_DVD_RW_AD-5540A<br>    by-path:                   /dev/disk/by-path/pci-0000:00:1f.1-scsi-0:0:1:0<br>
  detected at:                 söndag 2013-11-24 12:27<br>  system internal:             0<br>  removable:                   1<br>  has media:                   1 (detected at söndag 2013-11-24 13:29)<br>    detects change:            1<br>
    detection by polling:      1<br>    detection inhibitable:     1<br>    detection inhibited:       0<br>  is read only:                0<br>  is mounted:                  0<br>  mount paths:             <br>  mounted by uid:              0<br>
  presentation hide:           0<br>  presentation nopolicy:       0<br>  presentation name:           <br>  presentation icon:           <br>  automount hint:              <br>  size:                        618496<br>  block size:                  2048<br>
  job underway:                no<br>  usage:                       filesystem<br>  type:                        iso9660<br>  version:                     Joliet\x20Extension<br>  uuid:                        <br>  label:                       Dataskiva (24 nov 13)<br>
  optical disc:<br>    blank:                     0<br>    appendable:                0<br>    closed:                    1<br>    num tracks:                1<br>    num audio tracks:          0<br>    num sessions:              1<br>
  drive:<br>    vendor:                    Optiarc<br>    model:                     Optiarc DVD RW AD-5540A<br>    revision:                  2.61<br>    serial:                    <br>    WWN:                       <br>
    detachable:                0<br>    can spindown:              0<br>    rotational media:          Yes, unknown rate<br>    write-cache:               unknown<br>    ejectable:                 1<br>    adapter:                   /org/freedesktop/UDisks/adapters/0000_3a00_3a1f_2e1<br>
    ports:<br>      /org/freedesktop/UDisks/adapters/0000_3a00_3a1f_2e1/host0<br>    similar devices:<br>    media:                     optical_cd_rw<br>      compat:                  optical_cd optical_cd_r optical_cd_rw optical_dvd optical_dvd_plus_r optical_dvd_plus_r_dl optical_dvd_plus_rw optical_dvd_r optical_dvd_rw optical_mrw optical_mrw_w<br>
    interface:                 scsi<br>    if speed:                  (unknown)<br>    ATA SMART:                 not available</div><div><br></div><div>Now erasing:</div><div>~$ cdrecord blank=fast dev="${CdRom}"<br>
wodim: Operation not permitted. Warning: Cannot raise RLIMIT_MEMLOCK limits.<br>Device type    : Removable CD-ROM<br>Version        : 5<br>Response Format: 2<br>Capabilities   : <br>Vendor_info    : 'Optiarc '<br>
Identification : 'DVD RW AD-5540A '<br>Revision       : '2.61'<br>Device seems to be: Generic mmc2 DVD-R/DVD-RW.<br>Using generic SCSI-3/mmc   CD-R/CD-RW driver (mmc_cdr).<br>Driver flags   : MMC-3 SWABAUDIO BURNFREE <br>
Supported modes: TAO PACKET SAO SAO/R96R RAW/R96R<br>Speed set to 706 KB/s<br>Starting to write CD/DVD at speed   4.0 in real BLANK mode for single session.<br>Last chance to quit, starting real write in    0 seconds. Operation starts.<br>
~$ <br></div><div><br></div><div>Doing the same udisks command again:</div><div>~$ udisks --show-info "${CdRom}"<br>Showing information for /org/freedesktop/UDisks/devices/sr0<br>  native-path:                 /sys/devices/pci0000:00/0000:00:1f.1/host0/target0:0:1/0:0:1:0/block/sr0<br>
  device:                      11:0<br>  device-file:                 /dev/sr0<br>    presentation:              /dev/sr0<br>    by-id:                     /dev/disk/by-id/ata-Optiarc_DVD_RW_AD-5540A<br>    by-path:                   /dev/disk/by-path/pci-0000:00:1f.1-scsi-0:0:1:0<br>
  detected at:                 söndag 2013-11-24 12:27<br>  system internal:             0<br>  removable:                   1<br>  has media:                   1 (detected at söndag 2013-11-24 13:29)<br>    detects change:            1<br>
    detection by polling:      1<br>    detection inhibitable:     1<br>    detection inhibited:       0<br>  is read only:                0<br>  is mounted:                  0<br>  mount paths:             <br>  mounted by uid:              0<br>
  presentation hide:           0<br>  presentation nopolicy:       0<br>  presentation name:           <br>  presentation icon:           <br>  automount hint:              <br>  size:                        618496<br>  block size:                  2048<br>
  job underway:                no<br>  usage:                       filesystem<br>  type:                        iso9660<br>  version:                     Joliet\x20Extension<br>  uuid:                        <br>  label:                       Dataskiva (24 nov 13)<br>
  optical disc:<br>    blank:                     0<br>    appendable:                0<br>    closed:                    1<br>    num tracks:                1<br>    num audio tracks:          0<br>    num sessions:              1<br>
  drive:<br>    vendor:                    Optiarc<br>    model:                     Optiarc DVD RW AD-5540A<br>    revision:                  2.61<br>    serial:                    <br>    WWN:                       <br>
    detachable:                0<br>    can spindown:              0<br>    rotational media:          Yes, unknown rate<br>    write-cache:               unknown<br>    ejectable:                 1<br>    adapter:                   /org/freedesktop/UDisks/adapters/0000_3a00_3a1f_2e1<br>
    ports:<br>      /org/freedesktop/UDisks/adapters/0000_3a00_3a1f_2e1/host0<br>    similar devices:<br>    media:                     optical_cd_rw<br>      compat:                  optical_cd optical_cd_r optical_cd_rw optical_dvd optical_dvd_plus_r optical_dvd_plus_r_dl optical_dvd_plus_rw optical_dvd_r optical_dvd_rw optical_mrw optical_mrw_w<br>
    interface:                 scsi<br>    if speed:                  (unknown)<br>    ATA SMART:                 not available</div><div><br></div><div>I copied the text to two files, ”BeforeErasing” and ”AfterErasing”, then compared them:</div>
<div>~$ diff AfterErasing BeforeErasing <br>~$ </div><div><br></div><div>So obviously, they are the same.</div><div><br></div><div>Ejecting:</div><div>~$ eject $CdRom <br>~$</div><div><br></div><div>Inserting manually. Udisks again:</div>
<div>~$ udisks --show-info "${CdRom}"<br>Showing information for /org/freedesktop/UDisks/devices/sr0<br>  native-path:                 /sys/devices/pci0000:00/0000:00:1f.1/host0/target0:0:1/0:0:1:0/block/sr0<br>
  device:                      11:0<br>  device-file:                 /dev/sr0<br>    presentation:              /dev/sr0<br>    by-id:                     /dev/disk/by-id/ata-Optiarc_DVD_RW_AD-5540A<br>    by-path:                   /dev/disk/by-path/pci-0000:00:1f.1-scsi-0:0:1:0<br>
  detected at:                 söndag 2013-11-24 12:27<br>  system internal:             0<br>  removable:                   1<br>  has media:                   1 (detected at söndag 2013-11-24 16:41)<br>    detects change:            1<br>
    detection by polling:      1<br>    detection inhibitable:     1<br>    detection inhibited:       0<br>  is read only:                0<br>  is mounted:                  0<br>  mount paths:             <br>  mounted by uid:              0<br>
  presentation hide:           0<br>  presentation nopolicy:       0<br>  presentation name:           <br>  presentation icon:           <br>  automount hint:              <br>  size:                        2048<br>  block size:                  2048<br>
  job underway:                no<br>  usage:                       <br>  type:                        <br>  version:                     <br>  uuid:                        <br>  label:                       <br>  optical disc:<br>
    blank:                     1<br>    appendable:                0<br>    closed:                    0<br>    num tracks:                1<br>    num audio tracks:          0<br>    num sessions:              1<br>  drive:<br>
    vendor:                    Optiarc<br>    model:                     Optiarc DVD RW AD-5540A<br>    revision:                  2.61<br>    serial:                    <br>    WWN:                       <br>    detachable:                0<br>
    can spindown:              0<br>    rotational media:          Yes, unknown rate<br>    write-cache:               unknown<br>    ejectable:                 1<br>    adapter:                   /org/freedesktop/UDisks/adapters/0000_3a00_3a1f_2e1<br>
    ports:<br>      /org/freedesktop/UDisks/adapters/0000_3a00_3a1f_2e1/host0<br>    similar devices:<br>    media:                     optical_cd_rw<br>      compat:                  optical_cd optical_cd_r optical_cd_rw optical_dvd optical_dvd_plus_r optical_dvd_plus_r_dl optical_dvd_plus_rw optical_dvd_r optical_dvd_rw optical_mrw optical_mrw_w<br>
    interface:                 scsi<br>    if speed:                  (unknown)<br>    ATA SMART:                 not available<br>~$ </div><div><br></div><div>Copied the output to AfterReload, then:</div><div>~$ diff AfterErasing AfterReload <br>
11c11<br>< has media: 1 (detected at söndag 2013-11-24 13:29)<br>---<br>> has media: 1 (detected at söndag 2013-11-24 16:41)<br>25c25<br>< size: 618496<br>---<br>> size: 2048<br>28,30c28,30<br>< usage: filesystem<br>
< type: iso9660<br>< version: Joliet\x20Extension<br>---<br>> usage: <br>> type: <br>> version: <br>32c32<br>< label: Dataskiva (24 nov 13)<br>---<br>> label: <br>34c34<br>< blank: 0<br>---<br>> blank: 1<br>
36c36<br>< closed: 1<br>---<br>> closed: 0<br>~$</div><div><br></div><div><br></div><div>Johnny Rosenberg</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

<div class=""><div class="h5"><br>
Colin<br>
<br>
--<br>
ubuntu-users mailing list<br>
<a href="mailto:ubuntu-users@lists.ubuntu.com">ubuntu-users@lists.ubuntu.com</a><br>
Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-users" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-users</a><br>
</div></div></blockquote><br></div>