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<== Date ==> <== Thread ==>

Subject: RE: Linux question
From: "Mark Rivers" <[email protected]>
To: <[email protected]>
Cc: [email protected]
Date: Thu, 6 Aug 2009 10:01:35 -0500
Thanks for the online and offline replies.
 
My original post had an error: the older Linux system was 32-bit, not 64-bit.
 
The problem was missing 32-bit libraries on the new 64-bit Fedora Core 10 system.  The error message certainly could have been clearer than "Command not found", that's for sure!
 
Once I installed the following packages I was able to run 32-bit binaries that were already built on the other Linux system, as well as run "make" to build 32-bit linux-x86 binaries on the new 64-bit system.
 
   116  9:45    sudo yum install glibc-devel.i386
   124  9:48    sudo yum install readline-devel.i386
   127  9:49    sudo yum install ncurses-devel.i386
   130  9:50    sudo yum install libstdc++-devel.i386

Thanks,
Mark
 

________________________________

From: ZY (Zhijian Yin) [mailto:[email protected]]
Sent: Thu 8/6/2009 9:31 AM
To: Mark Rivers
Cc: [email protected]
Subject: Re: Linux question



Mark,

I think you need to install the i386/i686 compatibility libraries on the
64bit Linux machine. Do you have library files (libreadline.so.5, for
example) in /usr/lib32 or /lib32?

It's probably easier to compile a separate binary for the 64bit Linux.


ZY


Mark Rivers wrote:
> Folks,
> 
> This is not exactly an EPICS-specific question, but I'm having trouble running EPICS binaries built on one recent Linux system on another recent Linux system.  It just gives a "command not found" error, which is not very helpful.  Both systems are Fedora 64-bit; the binary is built with HOST_ARCH=linux-x86, e.g. 32-bit.
> 
> Here is an example.  I am trying to run a soft IOC in the current directly.  First I run "file" and "ldd" on it, then try to run it:
> 
> [epics@localhost linux-x86]$ file ./simDetectorApp
> ./simDetectorApp: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped
>
> [epics@localhost linux-x86]$ ldd ./simDetectorApp
>         not a dynamic executable
>
> [epics@localhost linux-x86]$ ./simDetectorApp
> ./simDetectorApp: Command not found.
>
> Note that ldd says this is not a dynamic executable, which is incorrect.
> 
> Here is the version information on the system where the binary was built and where the executable resides:
> 
> corvette:1-5beta/ADApp/simDetectorSrc>more /proc/version
> Linux version 2.6.27.21-78.2.41.fc9.i686 (mockbuild@) (gcc version 4.3.0 20080428 (Red Hat 4.3.0-8) (GCC) ) #1 SMP Mon Mar 23 23:45:58 EDT 2009
>
> Here is the version information on the system that will not run the binary:
> [epics@localhost linux-x86]$ more /proc/version
> Linux version 2.6.27.25-170.2.72.fc10.x86_64 ([email protected]) (gcc version 4.3.2 20081105 (Red Hat 4.3.2-7) (GCC) ) #1 SMP Sun Jun 21 18:39:34 EDT 2009
>
> 
> If I run "file" and "ldd" on the file on the system that builds it and runs it OK I get the following:
> 
> corvette:1-5beta/bin/linux-x86>file simDetectorApp
> simDetectorApp: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped
>
> corvette:1-5beta/bin/linux-x86>ldd simDetectorApp
>         linux-gate.so.1 =>  (0x0035b000)
>         libpthread.so.0 => /lib/libpthread.so.0 (0x003b3000)
>         libreadline.so.5 => /lib/libreadline.so.5 (0x05ac2000)
>         libncurses.so.5 => /lib/libncurses.so.5 (0x05f3b000)
>         librt.so.1 => /lib/librt.so.1 (0x004c8000)
>         libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x066c5000)
>         libm.so.6 => /lib/libm.so.6 (0x00363000)
>         libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x066b5000)
>         libc.so.6 => /lib/libc.so.6 (0x004d2000)
>         /lib/ld-linux.so.2 (0x001d8000)
>         libtinfo.so.5 => /lib/libtinfo.so.5 (0x05c57000)
>         libdl.so.2 => /lib/libdl.so.2 (0x0038e000)
> corvette:1-5beta/bin/linux-x86>./simDetectorApp
> 
> Any idea what could be wrong?
> 
> Thanks,
> Mark
>
> 
>
>
>  




Replies:
Re: Linux question Guy Jennings
References:
Linux question Mark Rivers
Re: Linux question ZY (Zhijian Yin)

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