Re: CD/DVD writing on IRIX6.5

2004-03-19 Thread Andy Polyakov
 I have a SGI IRIX 6.5 system with external DVD writer capable of burning
 DVD+RW and DVD-RW media. This device is connected as SCSI device
 through a SCSI HBA.
  ^^ Out of curiosity. You must be using some SCSI to
IDE bridge. I wonder what kind and model? Just for reference:-)

 I would like to know what software is available if I want to :-
 1. Write CD-R,DVD-R
 2. Optionally also write DVD+R,DVD+RW, with incremental writes.
 
 I understand that there are tools available to do this on Linux
 but not so sure about IRIX 6.5.

No, dvd+rw-tools don't support IRIX 6.5. But note that most of other
dvd+rw-tools ports are contributed, so have you considered adding
support for IRIX yourself? Alternatively I can throw in some initial
code (I happened to have an IRIX machine) and you'll polish it in
field... A.


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Re: growisofs with ND-1300A problems: write failed:Input/output error

2004-03-19 Thread Andy Polyakov
 To my surprise I still had autofs in the service list but that gave only
 a short moment of hope.

The fact that autofs appears in service list doesn't necessarily mean
that it's the one which caused the trouble(*). It doesn't necessarily
configured to control removable storage (at least it doesn't by default
as far as I understand). In other words autofs is *one* of the culprits.

(*) By trouble I mostly refer to write failed error, not unrecognized
profile.

 After disabling autofs and checking for
 anything suspisious I made a new try!
 
 Still I get the following for both the +RW and the +R media:
 
 growisofs -speed=1 -Z /dev/dvd -dvd-video dvd
 :-( /dev/dvd: media is not recognized as recordable DVD: 10

This message normally means that *unit* failed to recognize media as
recordable. The value you see is pulled from unit and is called profile.
Profile value of 10 (it's in hex) means that unit has recognized media
as DVD-ROM (0 in turn means that *unit* doesn't believe that there is
any media in). What does dvd+rw-mediainfo return *right after* you run
into this problem? You've posted dvd+rw-mediainfo output in first post.
Can you confirm that that ouput was pulled *right after* growisofs has
failed with not recognized as recordable? Point is that according to
that dvd+rw-mediainfo output profile value is 1B. Provide dvd+rw-tools
versioning information as well...

 And as before, both work flowlessly under XP/Nero.
 
 Is there anything more that could influence this??

There was one similar report and it turned out that user mixed different
versions in same build directory (I don't know how it happened) and
clean recompile solved the problem. It should be noted however that in
that case profile values were obviously bogus, not as neat as 10 or 0.
A.


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Re: Multi Volume CD/DVDs

2004-03-19 Thread Andy Polyakov
 Pardon my ignorance, but I would like to ask what is the commonly
 practiced method of creating multi-volume disks.

You must be referring to Volume Sequence Number defined for ISO9660
data-set. I myself would first wonder how common is support for
*accessing* of such multi-volume data-sets. Note that I'm not saying
that I know answer to either question, but I won't be surprised if
support for multi-volume *access* turns to be commonly poor.

 That is, for instance
 I need to burn a directory that has files whose combined size is, say
 12 GB. How would one go about creating multiple ISO9660 images from it
 and then burning them on CD/DVDs. Is there a way that these images can
 themselves keep track of information like their position in the
 sequence, total number of images that constitute the complete dataset
 etc.

Once again you probably should first wonder if and how target OS can use
this multi-volume field, because if it doesn't treat it in the way you
expect it to, then figuring out how to create multi-volume data-set
won't solve the problem.

 Also, what if the things are complicated by the existence of one or
 more files of size  2GB. Is this a Linux only issue?

Note that it's not an inherent Linux limitation, but Linux isofs
implmentation issue. I mean you can access files larger than 2GB under
Linux, but not those residing on ISO9660 volume. And the fact that Linux
exhibits this deficiency doesn't mean that *all* other implementations
are bug-free. I mean breaking 2GB limit is indeed a problem with Linux
isofs implementation, but given this fact alone one can't tell that it's
not a problem on some other given OS.
 
 Is this an issue on 64 bit SGI IRIX systems?

I don't think anybody would be able to answer this question definitely.
The only way is to try... Keep in mind that in Linux it's rather signed
vs. unsigned than 32- vs. 64-bit issue. A.


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Re: DVD writing, alpha architecture, recommendations wanted

2004-03-19 Thread Norbert Preining
Hi Andy!

Thanks for your answer, here some comments:

On Fre, 19 Mär 2004, Andy Polyakov wrote:
 As for dvd+rw-tools. There were couple of success reports from Alpha
 Linux users and I see no reason why it should be more buggy or less ok

Good to hear. But the history of supporting stuff on alpha architecture
wasn't that good, so I am careful.

  growisofs.c: In function `setup_fds':
  growisofs.c:503: warning: cast from pointer to integer of different size
 
 Note that those are not errors, but warnings. I can assure that they

Yuo, I know this, I checked the code and didn't see anything which I
would count as problem, so I didn't care.

 as intended. I can also add that warning will be eliminated in next
 update.

Good to hear.

 ^^ Just pick brand-name unit
 and stick to brand name media.

Ok.

  - Do you know a `good' backup program for DVD?
 
 Keep in mind that this is a *discussion* forum. Define backup program
 and then define 'good' backup program. Think about what's so special
 about DVD in context of these two definitions. Which backup programs did
 you use so far? Were they 'good'? Think about why can't you use then
 with DVD? A.

We used self written scripts which in turn used dump for ext2 to tapes.
Unfortunately our tapes are now too small for full backups, which makes
it very cumbersome.

We are in the process of switching to rsnapshots (rsnapshot.org) onto a
remote computer with big hard disk (this is the alpha architecture).
From their we want to make backups from time to time of the full system.

Definition of `good' for me: It should run without more or less any user
intervention, only for changing media.

Reason for this: We are mathematicians working at the university and in
fact don't want to spent a lot of time doing sysadm jobs. Our salary is
already low enough ;-)

Anyway, I already got some answers off list and will evaluate the
options. Thanks for your input and all the best

Norbert

---
Norbert Preining preining AT logic DOT at Technische Universität Wien
gpg DSA: 0x09C5B094  fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
---
BOOKThere is a theory which states that if ever anyone discovers
exactly what the Universe is for and why it is here, it will
instantly disappear and be replaced by something even more
bizarrely inexeplicable.
There is another theory which states that this has already happened.
 --- Introduction to Fit the Seventh.
 --- Douglas Adams, The Hitchhikers Guide to the Galaxy


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Re: DVD writing, alpha architecture, recommendations wanted

2004-03-19 Thread Andy Polyakov
   - Do you know a `good' backup program for DVD?
 
  Keep in mind that this is a *discussion* forum. Define backup program
  and then define 'good' backup program. Think about what's so special
  about DVD in context of these two definitions. Which backup programs did
  you use so far? Were they 'good'? Think about why can't you use then
  with DVD?

Those were the questions you should rather have asked yourself in order
to figure out what exactly is so special about DVD media, which makes
you wonder this questions. My standpoint is that 1/2 of solution lies in
posed question and good backup program for DVD is just too fuzzy.
E.g.:

 We used self written scripts which in turn used dump for ext2 to tapes.

You can use DVD as tape. Trouble is that if your average dataset is less
than single media capacity, then special care has to be taken, as you
probably don't want to waste one disc per set... Or you probably don't
want to use it as tape and pack data? You might want to keep files
accessible as single files for convenient restore...

 We are in the process of switching to rsnapshots (rsnapshot.org) onto a
 remote computer with big hard disk (this is the alpha architecture).
 From their we want to make backups from time to time of the full system.

... or maybe you on the contrary *want* to pack the data, so that it can
be *compressed* prior recording. Then big in combination with full
sounds like requirement for multi-volume. There was a post on the list
how to burn arbitrary input stream to multiple volumes...

Once again. Those are the question you should ask *yourself*. It's not
my intention to find a solution that suits some particular need, but
rather to make you and/or public to pose more tangible questions.

 ... some answers off list...

Note to the public. Things discussed off-list tend to so to say
disappear in vain. Open up and *share* your experience with public. Note
to request originator. Consider posting summary. A.


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Re: Multi Volume CD/DVDs

2004-03-19 Thread scdbackup

 ... I would like to ask what is the commonly
 practiced method of creating multi-volume disks. That is, for instance
 I need to burn a directory that has files whose combined size is, say
 12 GB. How would one go about creating multiple ISO9660 images from it
 and then burning them on CD/DVDs.

A few years ago i was faced with the same problem and my solution
is available as open source software :
  http://scdbackup.webframe.org/scdbackup-0.8.tar.gz
see file  README
Homepage :
  http://scdbackup.webframe.org/main_eng.html


In respect to other comments i have read so far :

scdbackup does not use exotic ISO 9660 features. It produces plain
independend ISO filesystems (+RockRidge) on several CDs.

To Andy :

Hi,
scdbackup is one of the off-list answers sent to Norbert Preining
about his request for a 'good' backup program.
I was reluctant to advertise my stuff as such a thing.

Ashish Rangole on the other hand asked for a central feature of scdbackup
which i am proud to present. 
Worthless, of course, without mkisofs, afio, cdrecord or growisofs.
(Taking a bow)

 
 Is there a way that these images can themselves keep track of
 information like their position in the
 sequence, total number of images that constitute the complete dataset
 etc.

scdbackup-0.8 maintains a list of checksum records (MD5) which
may be used to identify a volume of a multi volume backup. Those records
tell date, total number of volumes and sequence number of the given volume.
But this needs to read the whole media and will fail if the media is damaged.
(It's actually intended for verifying write success.)
So you will be better off with a leaflet of paper which holds the desired
information in human readable form. Paint unique, permanent ID numbers on
your media and refer to them on the leaflet. (Staedler Lumocolor pens seem
to do no harm to the surface of a CD-RW. I never tested Edding pens.)

 
 Also, what if the things are complicated by the existence of one or 
 more files of size  2GB. 

That depends wether the affected programs got compiled with 
Large File Support. I was told that mkisofs of cdrtools-2.01a19 
has that feature (there are newer releases meanwhile).


 Is this a Linux only issue? 

Traditional functions and data structures of the file system interface
used 32-bit signed integers (e.g. fseek got parameter  long offset ).
With Linux (and others) there are compile time macros which switch
to more modern data types : _FILE_OFFSET_BITS=64 _LARGEFILE_SOURCE


 Is this an issue on 64 bit SGI IRIX systems?

I suppose that SGI's own programs do support large files while possibly
some third-party programs don't.


scdbackup's programs get compiled with Large File Support. You will
also need mkisofs with that feature (see above).
Nevertheless, when creating ISO 9660 filesystems, scdbackup can not
handle files which are larger than a single media. Therefore files 2GB
can only be backuped on DVD (scdbackup uses growisofs to write the media)
or in format afio (large file support since afio-2.4.7.9beta4).


Have a nice day :)

Thomas


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Re: Multi Volume CD/DVDs

2004-03-19 Thread Andy Polyakov
 To Andy :
 
 scdbackup is one of the off-list answers sent to Norbert Preining
 about his request for a 'good' backup program.

Please note that I'm not blaming [nor in position to blame] anybody for
choices they make. I merely *encoraged* public to open up, as it felt
there is a need for that. My comment was *not* based solely on that
particular remark, so don't take it personally.

 I was reluctant to advertise my stuff as such a thing.

Modesty is of course valuable quality, but keep in mind that it's a
*discussion* forum. Statement or proposed solution doesn't have to be
100% correct or perfectly suitable for some particular situation. That's
why we *discuss* it, don't we?

 scdbackup-0.8 maintains a list of checksum records (MD5) which
 may be used to identify a volume of a multi volume backup.

Great!

  Also, what if the things are complicated by the existence of one or
  more files of size  2GB.
 
 That depends wether the affected programs got compiled with
 Large File Support. I was told that mkisofs of cdrtools-2.01a19
 has that feature (there are newer releases meanwhile).
 
  Is this a Linux only issue?
 
 Traditional functions and data structures of the file system interface
 used 32-bit signed integers (e.g. fseek got parameter  long offset ).

Once again. Keep in mind that Linux isofs implementation is deficient in
such way which effectively limits maximum file size to 2G-1 byte. I mean
even if kernel itself supports large files and all application programs
are explicitly compiled with large file support, you still get into
trouble [as long as we're talking about ISO9660 that is]. I assumed that
Ashish was referring to this limitation, as it was discussed serveral
times on this list. I might be wrong in my assumption (but that's OK as
already established:-). Cheers. A.


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Re: Multi Volume CD/DVDs

2004-03-19 Thread scdbackup

  On Fri, 19 Mar 2004 [EMAIL PROTECTED] wrote:
 On Fri, 19 Mar 2004, Andy Polyakov wrote:

 My comment was *not* based solely on that
 particular remark, so don't take it personally.

No offense taken.
And if ever ... your merits would outweight it.


  scdbackup-0.8 maintains a list of checksum records (MD5) which
  may be used to identify a volume of a multi volume backup.
 Great!

... and it got a bash script on each CD/DVD which tells you
the volume number, the date and can tell you on which volume a file
may be found. (Silly me, that would have been the better answer.)  


 Once again. Keep in mind that Linux isofs implementation is deficient in
 such way which effectively limits maximum file size to 2G-1 byte.

I was not aware of that. Still using CD-RW and only getting reports
from my DVD users. At least one of them got happy with large files
after pointing me to the lack of Large File Support in scdbackup-0.7 .

Conclusion so far :

For files larger than 2 GB i can only propose to use afio format
rather than ISO. Again: get at least afio-2.4.7.9beta4 for that
and make thorough tests including real restore experiments.
Be aware that 4 GB might be another limit.


Have a nice day :)

Thomas


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Re: permissions denied when using k3b

2004-03-19 Thread Geoffrey
Joerg Schilling wrote:
From: Geoffrey [EMAIL PROTECTED]


I'm curious as to if anyone has found a reasonable solution to
problems with the various gui interfaces running as a non-root user
when cdrecord is the chosen tool?


I've tried setting permissions on the device, setuid bit and sudo,
to no avail.  cdrecord always exists because of permissions.


There is an official way to do this - see man cdrecord
I tried this and it did not work.  What does work is using sudo with the 
proper configuration (NOPASSWD for select users).

--
Until later, Geoffrey Registered Linux User #108567
Building secure systems in spite of Microsoft
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Re: Re: LF-D311 support?

2004-03-19 Thread Colette Dryden
Title: Re: Re: LF-D311 support?







We are looking for a repair place that fixes these dvd ram drives? Also for the older style LF-D211V.


Is there a place that does repair on panasonic dvd drives?


Colette Dryden

Voice Products, Inc.

Assistant Operations Manager

(316) 616- ext. 116 





Re: CD/DVD writing on IRIX6.5

2004-03-19 Thread Andy Polyakov
 I have a SGI IRIX 6.5 system with external DVD writer capable of burning
 DVD+RW and DVD-RW media. This device is connected as SCSI device
 through a SCSI HBA.
  ^^ Out of curiosity. You must be using some SCSI to
IDE bridge. I wonder what kind and model? Just for reference:-)

 I would like to know what software is available if I want to :-
 1. Write CD-R,DVD-R
 2. Optionally also write DVD+R,DVD+RW, with incremental writes.
 
 I understand that there are tools available to do this on Linux
 but not so sure about IRIX 6.5.

No, dvd+rw-tools don't support IRIX 6.5. But note that most of other
dvd+rw-tools ports are contributed, so have you considered adding
support for IRIX yourself? Alternatively I can throw in some initial
code (I happened to have an IRIX machine) and you'll polish it in
field... A.



Re: growisofs with ND-1300A problems: write failed:Input/output error

2004-03-19 Thread Andy Polyakov
 To my surprise I still had autofs in the service list but that gave only
 a short moment of hope.

The fact that autofs appears in service list doesn't necessarily mean
that it's the one which caused the trouble(*). It doesn't necessarily
configured to control removable storage (at least it doesn't by default
as far as I understand). In other words autofs is *one* of the culprits.

(*) By trouble I mostly refer to write failed error, not unrecognized
profile.

 After disabling autofs and checking for
 anything suspisious I made a new try!
 
 Still I get the following for both the +RW and the +R media:
 
 growisofs -speed=1 -Z /dev/dvd -dvd-video dvd
 :-( /dev/dvd: media is not recognized as recordable DVD: 10

This message normally means that *unit* failed to recognize media as
recordable. The value you see is pulled from unit and is called profile.
Profile value of 10 (it's in hex) means that unit has recognized media
as DVD-ROM (0 in turn means that *unit* doesn't believe that there is
any media in). What does dvd+rw-mediainfo return *right after* you run
into this problem? You've posted dvd+rw-mediainfo output in first post.
Can you confirm that that ouput was pulled *right after* growisofs has
failed with not recognized as recordable? Point is that according to
that dvd+rw-mediainfo output profile value is 1B. Provide dvd+rw-tools
versioning information as well...

 And as before, both work flowlessly under XP/Nero.
 
 Is there anything more that could influence this??

There was one similar report and it turned out that user mixed different
versions in same build directory (I don't know how it happened) and
clean recompile solved the problem. It should be noted however that in
that case profile values were obviously bogus, not as neat as 10 or 0.
A.



Re: DVD writing, alpha architecture, recommendations wanted

2004-03-19 Thread Andy Polyakov
 - Is writing of DVDs supported on alpha architecture, and if yes, is it
   still `buggy' or ok?

As for dvd+rw-tools. There were couple of success reports from Alpha
Linux users and I see no reason why it should be more buggy or less ok
on Alpha Linux than on any other Linux (or other supported architecture
for that matter).

   For cdrecord-prodvd I do not see alpha/linux architecture. For
   dvd+rw-tools I have built my own backport from the debian/sid package,
   but got the following errors compiling:
 growisofs.c: In function `setup_fds':
 growisofs.c:503: warning: cast from pointer to integer of different size

Note that those are not errors, but warnings. I can assure that they
don't affect functionality of dvd+rw-tools and the latter should perform
as intended. I can also add that warning will be eliminated in next
update.

 - Can I put the DVD writer on the Promise controller?
   I know that there are some controllers which do not accept CDROM
   drives (my HPT eg).

I have no comment on this.

 - Finally, which DVD writer could you recommend?

The market is not very mature and it's apparently possible to run into
trouble with virtually any unit. By trouble I mean media problems,
poorly supported media in firmware, which manifest themselves in most
bizarre ways.

   Our main/only usage will be for backing up
^^ Just pick brand-name unit
and stick to brand name media.

 - Do you know a `good' backup program for DVD?

Keep in mind that this is a *discussion* forum. Define backup program
and then define 'good' backup program. Think about what's so special
about DVD in context of these two definitions. Which backup programs did
you use so far? Were they 'good'? Think about why can't you use then
with DVD? A.



Re: DVD writing, alpha architecture, recommendations wanted

2004-03-19 Thread Norbert Preining
Hi Andy!

Thanks for your answer, here some comments:

On Fre, 19 Mär 2004, Andy Polyakov wrote:
 As for dvd+rw-tools. There were couple of success reports from Alpha
 Linux users and I see no reason why it should be more buggy or less ok

Good to hear. But the history of supporting stuff on alpha architecture
wasn't that good, so I am careful.

  growisofs.c: In function `setup_fds':
  growisofs.c:503: warning: cast from pointer to integer of different size
 
 Note that those are not errors, but warnings. I can assure that they

Yuo, I know this, I checked the code and didn't see anything which I
would count as problem, so I didn't care.

 as intended. I can also add that warning will be eliminated in next
 update.

Good to hear.

 ^^ Just pick brand-name unit
 and stick to brand name media.

Ok.

  - Do you know a `good' backup program for DVD?
 
 Keep in mind that this is a *discussion* forum. Define backup program
 and then define 'good' backup program. Think about what's so special
 about DVD in context of these two definitions. Which backup programs did
 you use so far? Were they 'good'? Think about why can't you use then
 with DVD? A.

We used self written scripts which in turn used dump for ext2 to tapes.
Unfortunately our tapes are now too small for full backups, which makes
it very cumbersome.

We are in the process of switching to rsnapshots (rsnapshot.org) onto a
remote computer with big hard disk (this is the alpha architecture).
From their we want to make backups from time to time of the full system.

Definition of `good' for me: It should run without more or less any user
intervention, only for changing media.

Reason for this: We are mathematicians working at the university and in
fact don't want to spent a lot of time doing sysadm jobs. Our salary is
already low enough ;-)

Anyway, I already got some answers off list and will evaluate the
options. Thanks for your input and all the best

Norbert

---
Norbert Preining preining AT logic DOT at Technische Universität Wien
gpg DSA: 0x09C5B094  fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
---
BOOKThere is a theory which states that if ever anyone discovers
exactly what the Universe is for and why it is here, it will
instantly disappear and be replaced by something even more
bizarrely inexeplicable.
There is another theory which states that this has already happened.
 --- Introduction to Fit the Seventh.
 --- Douglas Adams, The Hitchhikers Guide to the Galaxy



Re: Multi Volume CD/DVDs

2004-03-19 Thread scdbackup

 ... I would like to ask what is the commonly
 practiced method of creating multi-volume disks. That is, for instance
 I need to burn a directory that has files whose combined size is, say
 12 GB. How would one go about creating multiple ISO9660 images from it
 and then burning them on CD/DVDs.

A few years ago i was faced with the same problem and my solution
is available as open source software :
  http://scdbackup.webframe.org/scdbackup-0.8.tar.gz
see file  README
Homepage :
  http://scdbackup.webframe.org/main_eng.html


In respect to other comments i have read so far :

scdbackup does not use exotic ISO 9660 features. It produces plain
independend ISO filesystems (+RockRidge) on several CDs.

To Andy :

Hi,
scdbackup is one of the off-list answers sent to Norbert Preining
about his request for a 'good' backup program.
I was reluctant to advertise my stuff as such a thing.

Ashish Rangole on the other hand asked for a central feature of scdbackup
which i am proud to present. 
Worthless, of course, without mkisofs, afio, cdrecord or growisofs.
(Taking a bow)

 
 Is there a way that these images can themselves keep track of
 information like their position in the
 sequence, total number of images that constitute the complete dataset
 etc.

scdbackup-0.8 maintains a list of checksum records (MD5) which
may be used to identify a volume of a multi volume backup. Those records
tell date, total number of volumes and sequence number of the given volume.
But this needs to read the whole media and will fail if the media is damaged.
(It's actually intended for verifying write success.)
So you will be better off with a leaflet of paper which holds the desired
information in human readable form. Paint unique, permanent ID numbers on
your media and refer to them on the leaflet. (Staedler Lumocolor pens seem
to do no harm to the surface of a CD-RW. I never tested Edding pens.)

 
 Also, what if the things are complicated by the existence of one or 
 more files of size  2GB. 

That depends wether the affected programs got compiled with 
Large File Support. I was told that mkisofs of cdrtools-2.01a19 
has that feature (there are newer releases meanwhile).


 Is this a Linux only issue? 

Traditional functions and data structures of the file system interface
used 32-bit signed integers (e.g. fseek got parameter  long offset ).
With Linux (and others) there are compile time macros which switch
to more modern data types : _FILE_OFFSET_BITS=64 _LARGEFILE_SOURCE


 Is this an issue on 64 bit SGI IRIX systems?

I suppose that SGI's own programs do support large files while possibly
some third-party programs don't.


scdbackup's programs get compiled with Large File Support. You will
also need mkisofs with that feature (see above).
Nevertheless, when creating ISO 9660 filesystems, scdbackup can not
handle files which are larger than a single media. Therefore files 2GB
can only be backuped on DVD (scdbackup uses growisofs to write the media)
or in format afio (large file support since afio-2.4.7.9beta4).


Have a nice day :)

Thomas



Re: Multi Volume CD/DVDs

2004-03-19 Thread Andy Polyakov
 To Andy :
 
 scdbackup is one of the off-list answers sent to Norbert Preining
 about his request for a 'good' backup program.

Please note that I'm not blaming [nor in position to blame] anybody for
choices they make. I merely *encoraged* public to open up, as it felt
there is a need for that. My comment was *not* based solely on that
particular remark, so don't take it personally.

 I was reluctant to advertise my stuff as such a thing.

Modesty is of course valuable quality, but keep in mind that it's a
*discussion* forum. Statement or proposed solution doesn't have to be
100% correct or perfectly suitable for some particular situation. That's
why we *discuss* it, don't we?

 scdbackup-0.8 maintains a list of checksum records (MD5) which
 may be used to identify a volume of a multi volume backup.

Great!

  Also, what if the things are complicated by the existence of one or
  more files of size  2GB.
 
 That depends wether the affected programs got compiled with
 Large File Support. I was told that mkisofs of cdrtools-2.01a19
 has that feature (there are newer releases meanwhile).
 
  Is this a Linux only issue?
 
 Traditional functions and data structures of the file system interface
 used 32-bit signed integers (e.g. fseek got parameter  long offset ).

Once again. Keep in mind that Linux isofs implementation is deficient in
such way which effectively limits maximum file size to 2G-1 byte. I mean
even if kernel itself supports large files and all application programs
are explicitly compiled with large file support, you still get into
trouble [as long as we're talking about ISO9660 that is]. I assumed that
Ashish was referring to this limitation, as it was discussed serveral
times on this list. I might be wrong in my assumption (but that's OK as
already established:-). Cheers. A.



Re: Multi Volume CD/DVDs

2004-03-19 Thread scdbackup

  On Fri, 19 Mar 2004 [EMAIL PROTECTED] wrote:
 On Fri, 19 Mar 2004, Andy Polyakov wrote:

 My comment was *not* based solely on that
 particular remark, so don't take it personally.

No offense taken.
And if ever ... your merits would outweight it.


  scdbackup-0.8 maintains a list of checksum records (MD5) which
  may be used to identify a volume of a multi volume backup.
 Great!

... and it got a bash script on each CD/DVD which tells you
the volume number, the date and can tell you on which volume a file
may be found. (Silly me, that would have been the better answer.)  


 Once again. Keep in mind that Linux isofs implementation is deficient in
 such way which effectively limits maximum file size to 2G-1 byte.

I was not aware of that. Still using CD-RW and only getting reports
from my DVD users. At least one of them got happy with large files
after pointing me to the lack of Large File Support in scdbackup-0.7 .

Conclusion so far :

For files larger than 2 GB i can only propose to use afio format
rather than ISO. Again: get at least afio-2.4.7.9beta4 for that
and make thorough tests including real restore experiments.
Be aware that 4 GB might be another limit.


Have a nice day :)

Thomas



Re: permissions denied when using k3b

2004-03-19 Thread Geoffrey
Joerg Schilling wrote:
From: Geoffrey [EMAIL PROTECTED]

I'm curious as to if anyone has found a reasonable solution to
problems with the various gui interfaces running as a non-root user
when cdrecord is the chosen tool?

I've tried setting permissions on the device, setuid bit and sudo,
to no avail.  cdrecord always exists because of permissions.

There is an official way to do this - see man cdrecord
I tried this and it did not work.  What does work is using sudo with the 
proper configuration (NOPASSWD for select users).

--
Until later, Geoffrey Registered Linux User #108567
Building secure systems in spite of Microsoft