[Bug] error: dump already exists

[maxz]

Redumper complains about an already existing dump when specifying the dump argument although there were no files at all before starting redumper.

With --overwrite it obviously works. But I would expect it to work without overwrite if no files with conflicting names exist apart from anything that redumper itself creates.

Log without explicit name or path:

redumper v2023.11.22 build_262 [Nov 22 2023, 19:57:04]

arguments: dump cd --drive-type=PLEXTOR --drive-sector-order=DATA_C2_SUB --drive-pregap-start=-75 --drive-read-method=D8 --retries=100 --verbose

drive path: /dev/sg4
drive: PLEXTOR - CD-R PX-W4012A (revision level: 1.07, vendor specific: 03/22/06 09:00)
drive configuration: PLEXTOR (read offset: +98, C2 shift: 294, pre-gap start: -75, read method: D8, sector order: DATA_C2_SUB)
drive read speed: <optimal>

current profile: CD-ROM

image path: .
image name: dump_231126_144456_sg4

*** DUMP

disc TOC:
  track 1 {  data }
    index 01 { LBA:      0, MSF: 00:02:00 }
  track A {  data }
    index 01 { LBA: 336925, MSF: 74:54:25 }

PLEXTOR: reading lead-in (retry: 1)
PLEXTOR: lead-in found (session: 1, sectors: 755)
PLEXTOR: reading lead-in (retry: 2)
PLEXTOR: lead-in found (session: 1, sectors: 95)
PLEXTOR: storing lead-in (session: 1, verified: yes)

media errors: 
  SCSI: 0
  C2: 0
  Q: 59

*** DUMP (time check: 577s)

error: dump already exists (image name: dump_231126_144456_sg4)

ls . after the error:

dump_231126_144456_sg4.fulltoc  dump_231126_144456_sg4.scram  dump_231126_144456_sg4.subcode
dump_231126_144456_sg4.log      dump_231126_144456_sg4.state  dump_231126_144456_sg4.toc

Log with name and path:

redumper v2023.11.22 build_262 [Nov 22 2023, 19:57:04]

arguments: dump cd --drive-type=PLEXTOR --drive-sector-order=DATA_C2_SUB --drive-pregap-start=-75 --drive-read-method=D8 --retries=100 --verbose --image-path=BUG_IMAGE_PATH --image-name=BUG_IMAGE_NAME

drive path: /dev/sg4
drive: PLEXTOR - CD-R PX-W4012A (revision level: 1.07, vendor specific: 03/22/06 09:00)
drive configuration: PLEXTOR (read offset: +98, C2 shift: 294, pre-gap start: -75, read method: D8, sector order: DATA_C2_SUB)
drive read speed: <optimal>

current profile: CD-ROM

image path: BUG_IMAGE_PATH
image name: BUG_IMAGE_NAME

*** DUMP

disc TOC:
  track 1 {  data }
    index 01 { LBA:      0, MSF: 00:02:00 }
  track A {  data }
    index 01 { LBA: 336925, MSF: 74:54:25 }

PLEXTOR: reading lead-in (retry: 1)
PLEXTOR: lead-in found (session: 1, sectors: 1045)
PLEXTOR: reading lead-in (retry: 2)
PLEXTOR: lead-in session not identified
PLEXTOR: reading lead-in (retry: 3)
PLEXTOR: lead-in found (session: 1, sectors: 413)
PLEXTOR: storing lead-in (session: 1, verified: yes)

media errors: 
  SCSI: 0
  C2: 0
  Q: 62

*** DUMP (time check: 648s)

error: dump already exists (image name: BUG_IMAGE_NAME)

ls BUG_IMAGE_PATH/ after the error:

BUG_IMAGE_NAME.fulltoc  BUG_IMAGE_NAME.scram  BUG_IMAGE_NAME.subcode
BUG_IMAGE_NAME.log      BUG_IMAGE_NAME.state  BUG_IMAGE_NAME.toc

[superg]

You've ran it as redumper dump cd ... both "dump" and "cd" are commands. "dump" means just dump cd (but don't split to multitrack) and "cd" command is actually a meta command that executes "dump" "protection" "refine" "split" "info" So what was executed in the end was: "dump" "dump" "protection" "refine" "split" "info"

Second dump from here will fail as previous dump has already created files based on a timestamp which remains the same throughout the execution.

You probably want just to dump a cd so for that you either execute: redumper cd ... or just redumper ... as the default mode is cd.

[maxz]

Ah. I've run successful dumps before. But I began automating my redumper use and wanted to specify the operation explicitly as far as it makes sense. I though CD itself was on another level as dump.

Thanks for the clarification on the commands.

[superg]

I see, if you're building something more advanced, you can use all the underlying commands directly. Just want to mention that depending on a disc type, the command list will be different, example: https://github.com/superg/redumper/blob/main/redumper.ixx#L178