Re: [gentoo-user] DVD and large files

[Dale <dalek1967@bellsouth.net>]

Joerg Schilling wrote:
> Dale <dalek1967@bellsouth.net> wrote:
>
>   
>> I am having trouble burning a 4Gb tarball at the moment.  Not sure what 
>> all the problem is but I had another DVD with one.  This is the command 
>> I use and the error less the looooooong list of files:
>>
>> root@smoker / # tar -xvf /media/hdd/Data_2008.07.04-14.50.23_2.tar -C 
>> /backup/test/
>> data/Gentoo-stuff/livecd-i686-installer-2007.0.iso.bz2
>> tar: Skipping to next header
>> <<SNIP>>
>> tar: Error exit delayed from previous errors
>> root@smoker / #
>>
>> ls of the file:
>>
>> -r--r--r-- 1 root root 4295060992 2008-07-04 19:07 
>> Data_2008.07.04-14.50.23_2.tar
>>
>> Any idea what that is all about?
>>     
>
> There are many possible reasons:
>
> 1)	A well known bug in GNU tar (self incompatibility to
> 	GNU tar archives).
>
> 	I recommend you to use star to check the archive for correctness.
>
> 2)	You did not use a recent original mkisofs to create the image
>
> 3)	There is a bug in your Linux kernel.
>
> You would first need to check with a tar implementation that is kown
> to work (star).
>
> Jörg
>
>   

Hi,

Sorry so long to reply but me and k3b have been having "discussions" 
about burning a huge DVD.  I emerged star but it may as well be Greek, 
no offense to the Greek.  Just something I will have to sit down and 
read sometime.

I got the DVD burned with a larger than 4Gb file.  Konqueror as a user 
says:  "Could not enter folder /media/hdd/" and I hear glass breaking.  
I assume that is not good.  Mount gives me this with regard to the DVD:

/dev/hdd on /media/hdd type udf (rw,noexec,nosuid,nodev)

I think this is a permissions issue.  Konqueror as root works just 
fine.  May need to beat on fstab or something with regards to that.  
More on that in a minute.

I can however access the DVD as root on the command line.  So, I just 
used tar and started to extract it.  It seems to be doing fine at the 
moment.  I will test further with larger files tho just to make sure.  
At least this time it unpacked the tarball with no errors.  After all, 
what's the point of back-ups if you can't unpack them? 

For the record, here is the current settings:

k3b:  under the burn screen I selected custom and then level 3 ISO, 
selected all file systems, preserve file permissions. 

Now back to the permissions issue.

fstab:

/dev/hdc              /media/hdc          iso9660         
noauto,users    0 0
/dev/hdd            /media/hdd        auto            noauto,users    0 0

Anybody see any reason why a non root user can't access the DVD?

I have set the permissions on /media/hdd to root/users with both having 
r/w access.  However after I insert a DVD, something changes it to this:

d---------  2 root root  116 2008-07-08 11:14 hdd

This is how I set it up:

drwxrwxr-x  2 root users  48 2008-07-04 14:21 hdd

It also changes back to my settings after I eject the DVD. 

I *think* I got the tar part working.  Any clues on the permissions 
issue?  Udev doing this?  I got something set wrong?

Thanks

Dale

:-)  :-) 
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