[ccoss] Re: unmount cdrom, device is busy, what is using it,using fuser as a solution

One thing to keep in mind when copying CDs is that many times you can 
just copy the iso image...no need to copy files at all...

i.e. dd if=/dev/cdrom of=cdrom.iso

then you can just use cdrecord to record cdrom.iso to a new CD.

Cheers,

Bill

Christopher Paulin wrote:

>Bill wrote:
>
>  
>
>>Cool. I think these tips are great! I wonder if we should create a 
>>monthy (or even weekly) tip on www.ccoss.org? ?Half the battle of using 
>>a computer effectively is knowing what can be done let alone what can do 
>>what you need!
>>
>>Cheers
>>
>>    
>>
>I was thinking the same thing except to include these in the Unix 
>Utilities by Example document.
>
>Actually, what I was working on was copying a CD that came with a 
>motherboard I installed for someone without using the Windows programs 
>that came with my CD-recorder, and I found some things out about Linux 
>on the way when I got stuck that I wanted to share with others and get 
>advise for. That CD was not readable my the computer's CD-ROM I was 
>working on but was with mine. That computer's CD-ROM works with other 
>CDs ok. I realize now that I didn't need to copy it to the hard drive, 
>but I didn't know how well the CD would read considering that it 
>couldn't be read on the computer I worked on, so I now have a good copy 
>according to the MD5 comparisons. Only one file didn't copy correctly 
>the first time.
>
>For copying the CD, I've been following 
>"http://www.tldp.org/HOWTO/CD-Writing-HOWTO-3.html#ss3.1";. I got to this 
>command: "mkisofs  -r   -o cd_image   private_collection/", and I got an 
>error when I ran it:
>
>chris@p450:/mnt/windows_xp/Documents and Settings> mkisofs -r -o 
>cd_image temp_cd_copy/*
>Using READM000.TXT;1 for  /Readme.txt (Readme.TXT)
>Using READM001.TXT;1 for  /Readme.TXT (Readme.txt)
>Using READM002.TXT;1 for  /Readme.txt (Readme.TXT)
>Using READM003.TXT;1 for  /Readme.TXT (Readme.TXT)
>Using READM004.TXT;1 for  /Readme.TXT (Readme.TXT)
>Using READM005.TXT;1 for  /Readme.TXT (Readme.TXT)
>mkisofs: Error: 'temp_cd_copy/usb/Readme.TXT' and 
>'temp_cd_copy/Utility/Readme.TXT' have the same Rock Ridge name 
>'Readme.TXT'.
>mkisofs: Error: 'temp_cd_copy/Modem/Readme.TXT' and 
>'temp_cd_copy/Lan/Readme.TXT' have the same Rock Ridge name 'Readme.TXT'.
>mkisofs: Error: 'temp_cd_copy/Sound/Readme.TXT' and 
>'temp_cd_copy/Modem/Readme.TXT' have the same Rock Ridge name 'Readme.TXT'.
>mkisofs: Error: 'temp_cd_copy/usb/Readme.TXT' and 
>'temp_cd_copy/Sound/Readme.TXT' have the same Rock Ridge name 'Readme.TXT'.
>mkisofs: Error: 'temp_cd_copy/Utility/Readme.TXT' and 
>'temp_cd_copy/Sound/Readme.TXT' have the same Rock Ridge name 'Readme.TXT'.
>mkisofs: Unable to sort directory
>chris@p450:/mnt/windows_xp/Documents and Settings>
>
>I got as far as finding out that this is a documented bug according to 
>the author, Jörg Schilling, and trying to figure out how to update to 
>cdtools-2.0. I never found out if this was fixed. After that, I took a 
>break.
>
>Christopher Paulin
>
>  
>
>>dave wrote:
>>
>> 
>>
>>    
>>
>>>you can also do this with the lsof (list open files) command:
>>>
>>>
>>>
>>>Christopher Paulin wrote:
>>>
>>>
>>>   
>>>
>>>      
>>>
>>>>Have you ever tried to unmount the CD-ROM, and it says the device is 
>>>>busy. This is a solution to find out what process is using the CD-ROM.
>>>>
>>>>chris@p450:~> cat /etc/fstab
>>>>.....................
>>>>/dev/cdrecorder      /media/cdrecorder    auto       
>>>>ro,noauto,user,exec   0 0
>>>>.....................
>>>>chris@p450:~> ls -l /dev/cdrecorder
>>>>lrwxrwxrwx    1 root     root            3 2003-10-13 21:35 
>>>>/dev/cdrecorder -> sr0
>>>>chris@p450:~> fuser -m /dev/sr0
>>>>/dev/sr0:             1247
>>>>chris@p450:~> fuser -m /dev/cdrecorder
>>>>/dev/cdrecorder:      1247
>>>>  
>>>>
>>>>     
>>>>
>>>>        
>>>>
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>> 
>>
>>    
>>
>
>
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>  
>


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