LinuxQuestions.org
Latest LQ Deal: Linux Power User Bundle
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices


Closed Thread
  Search this Thread
Old 07-07-2013, 05:00 AM   #1
rupeshforu
Member
 
Registered: Dec 2012
Posts: 97

Rep: Reputation: Disabled
how to extract data from bad iso file


As I have an iso file of size 404MB and the file is corrupted so can you suggest how to extract data from the file. It contains lot of pdf files which are valuable so I want data without any loss(atleast minimum).
 
Old 07-07-2013, 05:36 AM   #2
mddnix
Member
 
Registered: Mar 2013
Location: Bangalore, India
Distribution: Redhat, Arch, Ubuntu
Posts: 505

Rep: Reputation: 137Reputation: 137
Download free utility PowerISO for Linux, extract it and then give following command

For help:
Code:
$ ./poweriso -h
To extract:
Code:
$ ./poweriso extract file.iso / -od /output/directory
 
Old 07-07-2013, 08:30 AM   #3
konsolebox
Senior Member
 
Registered: Oct 2005
Distribution: Gentoo, Slackware, LFS
Posts: 2,248
Blog Entries: 8

Rep: Reputation: 235Reputation: 235Reputation: 235
Also consider using other extraction utilities like p7zip/7za.
 
Old 07-07-2013, 12:41 PM   #4
rupeshforu
Member
 
Registered: Dec 2012
Posts: 97

Original Poster
Rep: Reputation: Disabled
Sir I have used poweriso and also used the command specified by you and the output is

root@Rupesh:/home/books/temp# ls
books.txt file.iso poweriso temp
root@Rupesh:/home/books/temp#

root@Rupesh:/home/books/temp# ./poweriso extract file.iso / -od /home/books/temp/temp/

PowerISO Copyright(C) 2004-2008 PowerISO Computing, Inc
Type poweriso -? for help

file.iso: The file format is invalid or unsupported.
root@Rupesh:/home/books/temp#

As the iso file is corrupted so please suggest how to use any other tools like dd,ddrescue,testdisk which will work efficiently without any errors etc.,
 
Old 07-07-2013, 03:17 PM   #5
michaelk
Moderator
 
Registered: Aug 2002
Posts: 14,937

Rep: Reputation: 1520Reputation: 1520Reputation: 1520Reputation: 1520Reputation: 1520Reputation: 1520Reputation: 1520Reputation: 1520Reputation: 1520Reputation: 1520Reputation: 1520
Out of curiosity how was the ISO file created?
 
Old 07-07-2013, 04:34 PM   #6
John VV
LQ Muse
 
Registered: Aug 2005
Location: A2 area Mi.
Posts: 16,818

Rep: Reputation: 2408Reputation: 2408Reputation: 2408Reputation: 2408Reputation: 2408Reputation: 2408Reputation: 2408Reputation: 2408Reputation: 2408Reputation: 2408Reputation: 2408
Quote:

root@Rupesh:/home/books/temp# ./poweriso extract file.iso / -od /home/books/temp/temp/
is this image ACTUALLY called "file.iso" ?
if that is not the name of the image then it might output something like

"file.iso: The file format is invalid or unsupported."

also that error can be tossed if it is NOT an iso , but a zip or rar .

what operating system and desktop are you using
for KDE "arc" has no problems opening an iso image .
And on Gnome "File-Roller" has no problems opening an iso image .

if is is really mangled ( and NOT an encrypted image ) then "photorec" might be able to recover some things
 
1 members found this post helpful.
Old 07-07-2013, 09:21 PM   #7
rupeshforu
Member
 
Registered: Dec 2012
Posts: 97

Original Poster
Rep: Reputation: Disabled
Sir as you specified I have changed the file name to file.iso but before renaming the file also I got the same errors. At present I am using Debian wheezyAMD64bit and KDE DE. As I have requested help on Debian forum they are not responding at all but you are providing lot of tips. I think that something is wrong with the iso file so I am requesting you to check the file and if it works in your system please suggest how you made it to work.


Actually I have download the file from internet using torrent on android mobile and then I have transferred to system the iso file which has taken completely 24 hour's and the file size is 404MB. I am submitting torrent file as an attachment please verify the file with patience and help me.

Last edited by Mara; 07-08-2013 at 02:14 PM. Reason: Edit: attachment removed
 
Old 07-07-2013, 09:50 PM   #8
Ser Olmy
Senior Member
 
Registered: Jan 2012
Distribution: Slackware
Posts: 2,404

Rep: Reputation: Disabled
Mr Rupesh,

The attached torrent file is being spread with information claiming it contains a number of eBooks, none of which are authorized by the copyright holders for distribution in this manner.

If the file does indeed include these books, the distribution of the material via BitTorrent would constitute copyright infringement and be illegal in many (if not most) countries. You should probably refrain from discussing illegal activities on linuxquestions.org.

I do not know for a fact whether the file actually does contain those eBooks, but searching for the file on the Internet, I came across claims that the file is not really an .iso file, but rather an archive format created by a Windows application. Why it would have an .iso file extension when it is not actually an ISO file, I can't say.
 
Old 07-07-2013, 10:26 PM   #9
John VV
LQ Muse
 
Registered: Aug 2005
Location: A2 area Mi.
Posts: 16,818

Rep: Reputation: 2408Reputation: 2408Reputation: 2408Reputation: 2408Reputation: 2408Reputation: 2408Reputation: 2408Reputation: 2408Reputation: 2408Reputation: 2408Reputation: 2408
try removing the .iso file extension

then r-click on it and look at the properties

what type of archive dose kde tell you it is
 
Old 07-08-2013, 01:16 AM   #10
evo2
LQ Guru
 
Registered: Jan 2009
Location: Japan
Distribution: Mostly Debian and Scientific Linux
Posts: 5,753

Rep: Reputation: 1288Reputation: 1288Reputation: 1288Reputation: 1288Reputation: 1288Reputation: 1288Reputation: 1288Reputation: 1288Reputation: 1288
Hi,

given what is in post #8 it seems that this topic is not appropriate for LQ. If the copyright of these does allow distribution in this manner I apologize, but unless you can demonstrate that, I think this thread should be closed.

Evo2.
 
Old 07-08-2013, 01:58 AM   #11
mddnix
Member
 
Registered: Mar 2013
Location: Bangalore, India
Distribution: Redhat, Arch, Ubuntu
Posts: 505

Rep: Reputation: 137Reputation: 137
Forget iso, visit this site instead,

http://www.tldp.org/
 
1 members found this post helpful.
Old 07-08-2013, 07:43 AM   #12
rupeshforu
Member
 
Registered: Dec 2012
Posts: 97

Original Poster
Rep: Reputation: Disabled
Sorry for posting such a topic
 
Old 07-08-2013, 09:44 AM   #13
onebuck
Moderator
 
Registered: Jan 2005
Location: Midwest USA, Central Illinois
Distribution: SlackwareŽ
Posts: 12,541
Blog Entries: 23

Rep: Reputation: 1943Reputation: 1943Reputation: 1943Reputation: 1943Reputation: 1943Reputation: 1943Reputation: 1943Reputation: 1943Reputation: 1943Reputation: 1943Reputation: 1943
Moderator Response

Quote:
Originally Posted by rupeshforu View Post
Sir as you specified I have changed the file name to file.iso but before renaming the file also I got the same errors. At present I am using Debian wheezyAMD64bit and KDE DE. As I have requested help on Debian forum they are not responding at all but you are providing lot of tips. I think that something is wrong with the iso file so I am requesting you to check the file and if it works in your system please suggest how you made it to work.


Actually I have download the file from internet using torrent on android mobile and then I have transferred to system the iso file which has taken completely 24 hour's and the file size is 404MB. I am submitting torrent file as an attachment please verify the file with patience and help me.
The file you linked is a Torrent seed file;
Quote:
Linux Complete Ebooks Collection.isoeed6:lengthi5595e4athl9:books.txteee4:name32:Linux Complete Ebooks Collection12
Not knowing if the eBooks are copyrighted material causes this to be somewhat questionable at this point. So I suggest that you not violate LQ Rules or request fellow members to do so since the content is questionable.

You can look at Linux Books & Online Magazines to get Free books and information.
 
Old 07-08-2013, 02:16 PM   #14
Mara
Moderator
 
Registered: Feb 2002
Location: Grenoble
Distribution: Debian
Posts: 9,568

Rep: Reputation: 164Reputation: 164
At LQ we're serious about copyright. There are many books and tutorials on Linux distributed under free licenses, it is much better to try them. This thread is closed.
 
  


Closed Thread


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
How to open/extract ISO file in Linux? sattu Linux - Software 10 07-04-2015 01:48 AM
How to extract a .iso file dickgb Linux - Newbie 5 09-07-2008 06:16 PM
Extract of ISO file via terminal? itz2000 Linux - Newbie 7 05-05-2006 10:47 AM
How can I extract a file from iso archive kmichal2 Linux - Software 8 12-14-2004 06:48 AM
how to extract an .iso file to an directory vito_huang Linux - Newbie 2 11-29-2004 10:12 PM


All times are GMT -5. The time now is 01:15 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration