25 Nov
2019
25 Nov
'19
7:53 p.m.
Hi Guys,
Does anybody know if the "RAR" format has changed ?
For some reason I am no longer able to extract some rar archives that
have been sent to me.
Thanks in advance.
--
Best Regards:
Baron
25 Nov
25 Nov
10:02 p.m.
New subject: [trinity-users] RAR Files.
On Monday 25 November 2019 01:53:35 pm Baron wrote:
Hi Guys,
Does anybody know if the "RAR" format has changed ?
For some reason I am no longer able to extract some rar archives that
have been sent to me.
Thanks in advance.
Possibly just broken? Try
tar -x --ignore-failed-read
add the proper encoding (e.g. tar -zx ...)
You can find out some info about files with
file xyz.rar
stat xyz.rar
HTH,
Michael
10:19 p.m.
New subject: [trinity-users] RAR Files.
On Mon, Nov 25, 2019 at 04:02:36PM -0600, Michael wrote:
RAR, not tar.
https://en.wikipedia.org/wiki/RAR_%28file_format%29
--
Steven
On Monday 25 November 2019 01:53:35 pm Baron wrote:
> Hi Guys,
>
> Does anybody know if the "RAR" format has changed ?
The RAR format has changed many times. See link below.
> For some reason I am no longer able to extract
some rar archives that
> have been sent to me.
Without knowing the unrar utility you are using, how old it is, whether
it supports old RAR versions or new RAR versions, and the version of the
RAR file, it's impossible to say why it isn't working.
Do you get an error message when you try to extract?
Thanks in
advance.
Possibly just broken? Try
tar -x --ignore-failed-read 
26 Nov
26 Nov
12:05 a.m.
New subject: [trinity-users] RAR Files.
Steven D'Aprano wrote:
$ unrar x "*.rar" (CL extraction in rar dir) should tell you something.
If its broken, $ unrar x -kb "*.rar" will keep what it can extract.
See $ unrar h for more options.
AFAIK no significant changes have been made since 2013.
On Mon, Nov 25, 2019 at 04:02:36PM -0600, Michael
wrote:
> On Monday 25 November 2019 01:53:35 pm Baron wrote:
> > Hi Guys,
> >
> > Does anybody know if the "RAR" format has changed ?
Possibly just
broken? Try
tar -x --ignore-failed-read
RAR, not tar.
2:26 p.m.
New subject: [trinity-users] RAR Files.
On Monday 25 November 2019 06:05:34 pm Dave Lers wrote:
Steven D'Aprano wrote:
RAR, shmar, so I can't read...
Who knew there are so many unpacking tool just for RAR. Hideous non-free
software should be made illegal! Here's a partial list *:
unar
unrar
unp
rar
lsar ?
p7zip
dnf
rar
* Blatantly stolen from:
https://unix.stackexchange.com/questions/246535/how-to-open-rar-file-in-lin…
On Mon, Nov 25, 2019 at 04:02:36PM -0600, Michael
wrote:
$ unrar x "*.rar" (CL extraction in rar dir) should tell you something.
If its broken, $ unrar x -kb "*.rar" will keep what it can extract.
See $ unrar h for more options.
AFAIK no significant changes have been made since 2013. On Monday 25 November 2019 01:53:35 pm Baron
wrote:
RAR, not tar. Hi Guys,
Does anybody know if the "RAR" format has changed ?
Possibly just broken? Try
tar -x --ignore-failed-read
2:46 p.m.
New subject: [trinity-users] RAR Files.
Hi Guys,
On Tuesday 26 November 2019 14:26:54 Michael wrote:
On Monday 25 November 2019 06:05:34 pm Dave Lers
wrote:
First, thankyou to all that responded to my post asking about RAR
files. Lots of good info there.
I did download the latest RAR and UNRAR Version 5.8 beta4 and tried
with that. The best that I get is that it is not a RAR file and
there are no extractable files.
This gets weird because I can extract my older files without issue !
The chap that has sent me his RAR file has no problem opening the one
that I returned to him. He is a Windows user.
Using an editor and comparing the header code with a known good RAR it
seems quite different and has a number of references to Adobe, which
my old RAR files don't.
So I'm suspicious that this is a Windows thing.
Thanks all.
--
Best Regards:
Baron
Steven D'Aprano wrote:
RAR, shmar, so I can't read...
Who knew there are so many unpacking tool just for RAR. Hideous
non-free software should be made illegal! Here's a partial list *:
unar
unrar
unp
rar
lsar ?
p7zip
dnf
rar
* Blatantly stolen from:
https://unix.stackexchange.com/questions/246535/how-to-open-rar-fil
e-in-linux On Mon, Nov 25, 2019 at 04:02:36PM -0600, Michael
wrote:
$ unrar x "*.rar" (CL extraction in rar dir) should tell you
something. If its broken, $ unrar x -kb "*.rar" will keep what it
can extract. See $ unrar h for more options.
AFAIK no significant changes have been made since 2013. On Monday 25 November 2019 01:53:35 pm Baron
wrote:
> Hi Guys,
>
> Does anybody know if the "RAR" format has changed ?
Possibly just broken? Try
tar -x --ignore-failed-read
RAR, not tar.
4:42 p.m.
New subject: [trinity-users] RAR Files.
On Tue, Nov 26, 2019 at 02:46:58PM +0000, Baron wrote:
I did download the latest RAR and UNRAR Version 5.8
beta4 and tried
with that. The best that I get is that it is not a RAR file and
there are no extractable files.
My guess is that the file isn't a RAR file at all, but some doofus has
named it ".rar" because all compressed archives are RAR files, right?
It might work on your friend's computer if his decompression utility is
smart enough to use the correct decompressor based on the file contents,
not the extension.
Try deleting the ".rar" extension and then run the "file" command-line
utility on it and see what it says. It should inspect the file contents
and make an educated guess of the actual file type, without being
confused by the (possibly inaccurate) extension.
--
Steven
9:51 p.m.
New subject: [trinity-users] RAR Files.
Hi Guys,
On Tuesday 26 November 2019 16:42:05 Steven D'Aprano wrote:
On Tue, Nov 26, 2019 at 02:46:58PM +0000, Baron
wrote:
Thanks Steven, your help is appreciated.
The output from "file" is,
"RAR archive data, v0, flags: Locked, Authenticated,"
Which doesn't help me a lot I'm afraid.
--
Best Regards:
Baron
I did download the latest RAR and UNRAR Version
5.8 beta4 and
tried with that. The best that I get is that it is not a RAR
file and there are no extractable files.
My guess is that the file isn't a RAR file at all, but some doofus
has named it ".rar" because all compressed archives are RAR files,
right?
It might work on your friend's computer if his decompression
utility is smart enough to use the correct decompressor based on
the file contents, not the extension.
Try deleting the ".rar" extension and then run the "file"
command-line utility on it and see what it says. It should inspect
the file contents and make an educated guess of the actual file
type, without being confused by the (possibly inaccurate)
extension.
11:15 p.m.
New subject: [trinity-users] RAR Files.
On Tuesday 26 November 2019 03:51:51 pm Baron wrote:
Hi Guys,
On Tuesday 26 November 2019 16:42:05 Steven D'Aprano wrote:
At this point I'd just punt as they say. Ask your friend to extract the
file(s) into a folder and re-compress them using some other method than RAR.
It is concievable if this RAR file was emailed to you that you do not have an
exact copy of it.
On Tue, Nov 26, 2019 at 02:46:58PM +0000, Baron
wrote:
Thanks Steven, your help is appreciated.
The output from "file" is,
"RAR archive data, v0, flags: Locked, Authenticated," I did download the latest RAR and UNRAR Version
5.8 beta4 and
tried with that. The best that I get is that it is not a RAR
file and there are no extractable files.
My guess is that the file isn't a RAR file at all, but some doofus
has named it ".rar" because all compressed archives are RAR files,
right?
It might work on your friend's computer if his decompression
utility is smart enough to use the correct decompressor based on
the file contents, not the extension.
Try deleting the ".rar" extension and then run the "file"
command-line utility on it and see what it says. It should inspect
the file contents and make an educated guess of the actual file
type, without being confused by the (possibly inaccurate)
extension.
11:48 p.m.
New subject: [trinity-users] RAR Files.
On Tue, Nov 26, 2019 at 09:51:51PM +0000, Baron wrote:
The output from "file" is,
"RAR archive data, v0, flags: Locked, Authenticated,"
Which doesn't help me a lot I'm afraid.
My guess is that this means that your RAR file is password protected and
your unrar utility doesn't know how to deal with it, but that's a guess
because I'm busy and don't have time to research it for you. But I
seem to vaguely remember having this same problem in the past, which I
ended up solving by running the unrar utility from the command line
rather than through KDE's Extract menu.
But that was years ago and I might be confabulating the whole episode.
You could start some more research here:
https://duckduckgo.com/?q=rar+locked+authenticated
--
Steven
27 Nov
27 Nov
8:07 a.m.
New subject: [trinity-users] RAR Files.
Hi Steven, Guys,
On Tuesday 26 November 2019 23:48:41 Steven D'Aprano wrote:
On Tue, Nov 26, 2019 at 09:51:51PM +0000, Baron
wrote:
Problem solved !
Apparently Windows RAR allows setting locks and passwords via a file
that is used by RAR when creating an archive. Unrar 5.8 now works
fine.
I didn't realise that the new version was not in the path, and I was
still trying to use the old one.
The RAR file format was changed quite recently and the old versions
cannot understand the 5 version format.
The new 5.8 installs in "/usr/local" which oddly has "root, staff"
rights, rather than "root,root" which I expected. It seems that I'm
not a member of that group.
Thanks everybody for your help, its much appreciated.
--
Best Regards:
Baron
The output from "file" is,
"RAR archive data, v0, flags: Locked, Authenticated,"
Which doesn't help me a lot I'm afraid.
My guess is that this means that your RAR file is password
protected and your unrar utility doesn't know how to deal with it,
but that's a guess because I'm busy and don't have time to research
it for you. But I seem to vaguely remember having this same problem
in the past, which I ended up solving by running the unrar utility
from the command line rather than through KDE's Extract menu.
But that was years ago and I might be confabulating the whole
episode.
You could start some more research here:
https://duckduckgo.com/?q=rar+locked+authenticated 
25 Nov
25 Nov
10:08 p.m.
New subject: [trinity-users] RAR Files.
On Mon, 25 Nov 2019 19:53:35 +0000
Baron <baron(a)linuxmaniac.net> wrote:
Does anybody know if the "RAR" format has
changed ?
Not to my knowledge, but it's a proprietary format, therefore subject to change
without notice.
For some reason I am no longer able to extract some
rar archives that
have been sent to me.
Could the files be corrupt?
Could the files be password-protected?
In the worst case, you can always download a trial version of the officially-blessed
extraction program from rarlab.com . If it can't open the files, you'll know
there's
something wrong with them.
E. Liddell
1851
days inactive
1853
days old
11 comments
5 participants
participants (5)
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Baron -
Dave Lers -
E. Liddell -
Michael -
Steven D'Aprano