Actually it's a long story before this problem exists. What I remember is:
initially, due to some other problems, I was not able to run any of the unix command (i.e. ls, cd, rpm). The terminal kept giving me similar error message (error while loading shared libraries: libdl.so.2) every time I keyed in any unix command.
In order to solve this, I downloaded an rpm package (
http://mirror.centos.org/centos/6/os...el6.x86_64.rpm) using
another linux machine and opened the package using rpm2cpio command. Here I downloaded centos package since I think it may work on RHEL. Afterwards, I copied the libdl-2.12.so file from the package to the problematic machine. Somehow, it solves the problem partially. I am able to run most of the unix commands so far, except passwd.
This morning, I tried to install the rpm using the same glibc rpm package directly using the rpm command. Now, everytime I execute ldd -v /lib64/libdl.so.2 command, I no longer get the "ldd: warning: you do not have execution permission for `/lib64/libdl.so.2'" message. However, I am still not able to execute passwd command.
Really appreciate your help.
The following are the codes in details:
[root@server1 CENTOS]# ldd -v /lib64/libdl.so.2
linux-vdso.so.1 => (0x00007fffb63ff000)
libc.so.6 => /lib64/libc.so.6 (0x00007fcc42f0e000)
/lib64/ld-linux-x86-64.so.2 (0x00007fcc434a7000)
Version information:
/lib64/libdl.so.2:
ld-linux-x86-64.so.2 (GLIBC_PRIVATE) => /lib64/ld-linux-x86-64.so.2
libc.so.6 (GLIBC_PRIVATE) => /lib64/libc.so.6
libc.so.6 (GLIBC_2.2.5) => /lib64/libc.so.6
/lib64/libc.so.6:
ld-linux-x86-64.so.2 (GLIBC_PRIVATE) => /lib64/ld-linux-x86-64.so.2
ld-linux-x86-64.so.2 (GLIBC_2.3) => /lib64/ld-linux-x86-64.so.2
[root@server1 CENTOS]# ls -l /lib64/libdl.so.2 /lib64/libdl-2.12.so
--w-r-xr-x. 1 root root 19536 Apr 3 12:43 /lib64/libdl-2.12.so
lrwxrwxrwx. 1 root root 20 Apr 4 09:25 /lib64/libdl.so.2 ->
/lib64/libdl-2.12.so
[root@server1 CENTOS]# passwd
passwd: error while loading shared libraries: libdl.so.2: cannot open
shared object file: No such file or directory