Should I worry about dd error?

0

I'm doing back up of some cd/dvd data discs, using dd. For all discs until now I'm getting error like:

dd: error reading '/dev/sr0': Input/output error
2425728+0 records in
2425728+0 records out
1241972736 bytes (1.2 GB, 1.2 GiB) copied, 439.488 s, 2.8 MB/s

The command executed was like:

dd if=/dev/sr0 of=disc.iso

Anyway I tried to mount the iso images produced and they seem to be ok.

What's the problem?

Is that error telling me the disc wasn't correctly written?

KcFnMi

Posted 2017-07-18T23:21:21.267

Reputation: 396

Answers

1

It depends on the DD command. If it specifies a size bigger than the CD, then it is expected.

xenoid

Posted 2017-07-18T23:21:21.267

Reputation: 7 552

Should I something more then dd if=/dev/sr0 of=disc.iso? – KcFnMi – 2017-07-19T01:02:02.027

Question edited with dd command. – KcFnMi – 2017-07-19T23:21:42.383

Well this very command runs without errors for me... – xenoid – 2017-07-20T00:22:17.923

Asked: 2017-07-18T23:21:21.267

Viewed: 89 times

Active: 2017-07-19T01:00:40.137