Hi, you can't. The variable is not removed by super or sudo, but by the dynamic linker for security reasons.
>From the manpage of ld.so(8): "LD_LIBRARY_PATH A colon-separated list of directories in which to search for ELF libraries at execution-time. Similar to the PATH environment variable. Ignored in set-user-ID and set-group-ID programs." The corresponding source code line is https://sourceware.org/git/?p=glibc.git;a=blob;f=elf/dl-load.c;h=41b91fcc86664b39ea8c0ce5ed35109ab494c925;hb=HEAD#l817 , the __libc_enable_secure flag gets set when a binary is executed setuid root and prevents the use of untrusted paths LD_LIBRARY_PATH. The list of trusted paths is generated at compile time, so you can't change it later. I have never used super and the only solution I know is the following: $ export LD_LIBRARY_PATH=/whatever/ $ sudo LD_LIBRARY_PATH=${LD_LIBRARY_PATH} env kind regards, Simon On 31.03.2015 10:13, sanyechon...@live.com wrote:> Hi everybody! > How can I keep the enviromet variable LD_LIBRARY_PATH when I excute > a super command? > > I have modified /etc/super.tab: > :global env=PATH,LD_LIBRARY_PATH,PYTHONPATH > bzytest /root/test admin > > /root/test: > #!/bin/bash > export > > I can get PATH, PYTHONPATH kept. But LD_LIBRARY_PATH is not. > > Forgive my bad english. > > Best wishes > > > Shuai > sanyechon...@live.com -- Karlsruhe Institut of Technology (KIT) Steinbuch Centre for Computing (SCC) M. Sc. Simon Raffeiner High Performance Computing Administrator -- Ubuntu-devel-discuss mailing list Ubuntu-devel-discuss@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-devel-discuss
