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 Forum index » Advanced Topics » Cutting edge
Linux Standard Base
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rcrsn51


Joined: 05 Sep 2006
Posts: 7758
Location: Stratford, Ontario
PostPosted: Tue 25 Oct 2011, 09:22    Post subject:  Linux Standard Base  
Epson has started to distribute their printer drivers in LSB-compatible packages. But when I look at the binaries inside, Puppy does not even recognize them as being executable and an ldd command on them fails.

I have attached an example below. Just remove the dummy .gz extension.

Any thoughts?
epson_inkjet_printer_filter.gz
Description 
gz

 Download 
Filename  epson_inkjet_printer_filter.gz 
Filesize  32.39 KB 
Downloaded  191 Time(s) 
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01micko


Joined: 11 Oct 2008
Posts: 7019
Location: qld
PostPosted: Tue 25 Oct 2011, 09:39    Post subject:  
What OS are using to test? Maybe it's kernel dependent (re 2.6.8 and above maybe Confused )
Code:
# file  epson_inkjet_printer_filter
epson_inkjet_printer_filter: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.8, not stripped


Code:
# ldd ./epson_inkjet_printer_filter
   linux-gate.so.1 =>  (0xffffe000)
   libdl.so.2 => /lib/libdl.so.2 (0xb78d4000)
   libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0xb77eb000)
   libcupsimage.so.2 => /usr/lib/libcupsimage.so.2 (0xb77d8000)
   libcups.so.2 => /usr/lib/libcups.so.2 (0xb779c000)
   libjpeg.so.62 => /usr/lib/libjpeg.so.62 (0xb7782000)
   libpthread.so.0 => /lib/libpthread.so.0 (0xb7769000)
   libm.so.6 => /lib/libm.so.6 (0xb7743000)
   libc.so.6 => /lib/libc.so.6 (0xb75e0000)
   /lib/ld-lsb.so.3 => /lib/ld-linux.so.2 (0xb78d9000)
   libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0xb75c4000)
   libtiff.so.3 => /usr/lib/libtiff.so.3 (0xb7569000)
   libpng14.so.14 => /usr/lib/libpng14.so.14 (0xb7543000)
   libjpeg.so.8 => /usr/lib/libjpeg.so.8 (0xb750e000)
   libz.so.1 => /usr/lib/libz.so.1 (0xb74fa000)
   libcrypt.so.1 => /lib/libcrypt.so.1 (0xb74c8000)
   libssl.so.0 => /lib/libssl.so.0 (0xb7480000)
   libcrypto.so.0 => /lib/libcrypto.so.0 (0xb7339000)

slacko-5.3-PAE (2.6.39.4)
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rcrsn51


Joined: 05 Sep 2006
Posts: 7758
Location: Stratford, Ontario
PostPosted: Tue 25 Oct 2011, 09:50    Post subject:  
What do you get when you run it from the command line?

In Quirky, I get "bash: no such file or directory". An ldd command says the same.

In regular Slacko, the command doesn't run, but ldd does!
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01micko


Joined: 11 Oct 2008
Posts: 7019
Location: qld
PostPosted: Tue 25 Oct 2011, 09:57    Post subject:  
# ./epson_inkjet_printer_filter
bash: ./epson_inkjet_printer_filter: No such file or directory

Confused

EDIT: even weirder.. I whacked it in PATH

# epson_inkjet_printer_filter
bash: /usr/local/bin/epson_inkjet_printer_filter: No such file or directory

EDIT2: even tried this:

# su spot
# epson_inkjet_printer_filter
sh: /usr/local/bin/epson_inkjet_printer_filter: No such file or directory
# whoami
spot
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rcrsn51


Joined: 05 Sep 2006
Posts: 7758
Location: Stratford, Ontario
PostPosted: Tue 25 Oct 2011, 10:05    Post subject:  
This certainly puts a wrinkle in long-term support for Epson devices.
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PANZERKOPF

Joined: 16 Dec 2009
Posts: 250
Location: Earth
PostPosted: Tue 25 Oct 2011, 10:54    Post subject: Re: Linux Standard Base  
rcrsn51 wrote:

Any thoughts?

Try to create a symlink:
ln -s /lib/ld-linux.so.2 /lib/ld-lsb.so.3
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rcrsn51


Joined: 05 Sep 2006
Posts: 7758
Location: Stratford, Ontario
PostPosted: Tue 25 Oct 2011, 12:06    Post subject: Re: Linux Standard Base  
PANZERKOPF wrote:
Try to create a symlink:
ln -s /lib/ld-linux.so.2 /lib/ld-lsb.so.3

It works! Both in Quirky and Slacko. And these driver packages are actually simpler to work with because everything is in a single folder that you drop into /opt.

However, unlike the old pipslite driver package, this one has different downloads for different models. So it's more like the Canon procedure.

Thanks!
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rcrsn51


Joined: 05 Sep 2006
Posts: 7758
Location: Stratford, Ontario
PostPosted: Tue 25 Oct 2011, 19:06    Post subject:  
It turns out that this isn't as easy as I thought.

When testing with k2.6.33.2 Puppies (Quirky, Lupu) I have good results with two different Epson models.

But with lower kernels (Wary) or higher kernels (Slacko, Squeeze), the results are inconsistent.

Should I be using something other than /lib/ld-lsb.so.3 for those Puppies?
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PANZERKOPF

Joined: 16 Dec 2009
Posts: 250
Location: Earth
PostPosted: Tue 25 Oct 2011, 19:29    Post subject:  
rcrsn51 wrote:

Should I be using something other than /lib/ld-lsb.so.3 for those Puppies?

The above "dirty hack" just solves problem with loader.
Did you get same error message when you was trying to load a file?
(like "bash: no such file or directory").
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rcrsn51


Joined: 05 Sep 2006
Posts: 7758
Location: Stratford, Ontario
PostPosted: Tue 25 Oct 2011, 20:04    Post subject:  
I tried the 64-bit version of your hack with the 64-bit Epson LSB drivers in Fatdog. I could get some model-driver combinations to work but not others.

It appears that these packages are tuned to certain distros and it's just dumb luck that the k2.6.33.2 Puppies work.
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rcrsn51


Joined: 05 Sep 2006
Posts: 7758
Location: Stratford, Ontario
PostPosted: Tue 25 Oct 2011, 22:07    Post subject:  
Problem solved. This has nothing to do with kernels and everything to do with Puppies that don't give /tmp a full set of permissions OOTB. Usually, the CUPS logs show this, but the Epson LSB drivers just fail with no messages.

I have posted the new driver here. If you have an Epson printer that currently uses pipslite, could you please test this?
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