Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I saw from another post how to do this: by using cat

cat  /dev/s > /z/windows7.iso

When I tried it it goes partially then gets

cat /dev/sr0: Input/Output Error

This happens at about 20% completed on one of the dvd's and maybe 3% on the other one.

NB:these are LEGAL original Windows installation dvd's that I had succcessfully installed on older (now defunct laptops). It is very unlikely that both dvds became corrupted /damaged. This has to do with the copying not with the original media

Here is output

steve@mithril:/z$ cat  /dev/sr0 > /z/windowsxp.iso
cat: /dev/sr0: Input/output error
steve@mithril:/z$ ll /z/windowsexp.iso
ls: cannot access /z/windowsexp.iso: No such file or directory
steve@mithril:/z$ ll /z/windowsxp.iso
-rw-rw-r-- 1 steve steve 652869632 Jul  6 13:11 /z/windowsxp.iso
share|improve this question

1 Answer 1

up vote 0 down vote accepted

Try using dd. sudo dd if=/dev/sr0 of=/path/to/output/file.iso

share|improve this answer
    
That yields an immediate "dd: reading '/dev/sro': Input/Output error. But wait, i tried a second time and it appears to have worked. Will get back. –  javadba Jul 6 '13 at 20:35
    
Should be sr0 not sro :D. If you did actually type sr0 then Are you sure sr0 is the device file for the CD? Did you use sudo? And have you unmounted the CD before trying this? –  handuel Jul 6 '13 at 20:36
    
i just "historied" the same command it appears to have worked second time. –  javadba Jul 6 '13 at 20:37
    
One of the two did "dd" properly but vmware installation failed, possibly unrelated. But for the other, it still only completed 3% before Input/Output error. I am going to try to install directly on old computer to prove one way/other if/not it were media problem. –  javadba Jul 6 '13 at 20:49

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.