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Full Discussion: Deploying Qt on CentOS - libc.so.6 update problem
Operating Systems Linux Deploying Qt on CentOS - libc.so.6 update problem Post 302488772 by Corona688 on Tuesday 18th of January 2011 12:51:30 PM
Old 01-18-2011
Your development system has much newer software than your server, too new to still be compatible it seems. Replacing your current libc is a very bad idea -- I'm glad you didn't lock yourself out of your server, we get a new threads about "I messed up my libc now nothing works what do I do" with fair regularity.

I'd make the executable demand very specific versions and paths -- i.e. link in /usr/local/lib/libc-2.12.1.so instead of libc.so.6. Specific versions of any other libraries it complains about, too. Then you can copy them over to your server without overwriting existing libraries. I suggest /usr/local/lib instead of /lib/ or /usr/lib/ because that lets you track very carefully what things you've copied over by hand instead of dumping them in with the rest of the pile.

---------- Post updated at 11:51 AM ---------- Previous update was at 10:14 AM ----------

If you can add -Xlinker -R /usr/local/lib to your code when you compile it, that will force it to look in /usr/local/lib/ first, and fall back on /lib/ etc. if it doesn't find things available in there.

Code:
$ echo "int main() { return 42; }" > 42.c
$ gcc 42.c -o 42
$ ldd 42
        linux-gate.so.1 =>  (0xb7888000)
        libc.so.6 =>  /lib/libc.so.6 (0xb762b000)
        /lib/ld-linux.so.2 (0xb7889000)
$ cp /lib/libc.so.6 ./
$ gcc -Xlinker -rpath=$PWD 42.c -o 42
$ ldd ./42
        linux-gate.so.1 =>  (0xb78bb000)
        libc.so.6 => /home/tyler/code/c/1shot/libc.so.6 (0xb7771000)
        /lib/ld-linux.so.2 (0xb78bc000)
$ rm libc.so.6
$ ldd ./42
        linux-gate.so.1 =>  (0xb777a000)
        libc.so.6 => /lib/libc.so.6 (0xb7627000)
        /lib/ld-linux.so.2 (0xb777b000)

Last edited by Corona688; 01-18-2011 at 02:08 PM..
This User Gave Thanks to Corona688 For This Post:
David Brown
 

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LEARN ABOUT HPUX

statd

statd(1M)																 statd(1M)

NAME

       statd, rpc.statd - network status monitor

SYNOPSIS

DESCRIPTION

       is an RPC server.  It interacts with to provide the crash and recovery functions for the locking services on NFS (see lockd(1M)).

       keeps  track  of the clients with processes which hold locks on a server.  When the server reboots after a crash, sends a message to the on
       each client indicating that the server has rebooted.  The client processes then informs the on the client that  the  server  has  rebooted.
       The client then attempts to reclaim the lock(s) from the server.

       on  the	client host also informs the on the server(s) holding locks for the client when the client has rebooted.  In this case, the on the
       server informs its that all locks held by the rebooting client should be released, allowing other processes to lock those files.

   Options
       recognizes the following options and command-line arguments:

       This is an obsolete option. All messages and errors are logged to

WARNINGS

       The crash of a server is only detected upon its recovery.

FILES

       lists hosts and network addresses to be contacted after a reboot

       lists hosts and network addresses that could not be contacted after last reboot

       includes a number which changes during a reboot

AUTHOR

       was developed by Sun Microsystems, Inc.

SEE ALSO

       lockd(1M), fcntl(2), lockf(2), signal(2), sm(4).

																	 statd(1M)
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