Re: [Jailkit-users] problems running commands, differing ldd output

[Richard Scott]

Hi,

When in your jail try this:

 

$ which grep

does it list /bin/grep or say its not found?

If not found, your PATH isn't set correctly.

Rich

On 26/04/2014 23:50, Tzvi Edelman wrote:

Hi,

 

I am using jailkit-2.17 in debian wheezy, and seeing the following:

When I try to do something with grep in a jailed session, I get back

  bash: /bin/grep: No such file or directory

 

# ldd from outside the jail:

$ ldd /bin/grep

        /usr/lib/arm-linux-gnueabihf/libcofi_rpi.so (0xb6f90000)

        libdl.so.2 => /lib/arm-linux-gnueabihf/libdl.so.2 (0xb6f7a000)

        libgcc_s.so.1 => /lib/arm-linux-gnueabihf/libgcc_s.so.1 (0xb6f52000)

        libc.so.6 => /lib/arm-linux-gnueabihf/libc.so.6 (0xb6e23000)

        /lib/arm-linux-gnueabihf/ld-linux.so.3 => /lib/ld-linux-armhf.so.3 (0xb6f9d000)

 

# ldd from inside the jail:

$ ldd /bin/grep

libdl.so.2 => /lib/arm-linux-gnueabihf/libdl.so.2 (0xb6f74000)

libgcc_s.so.1 => /lib/arm-linux-gnueabihf/libgcc_s.so.1 (0xb6f4c000)

libc.so.6 => /lib/arm-linux-gnueabihf/libc.so.6 (0xb6e1d000)

/lib/arm-linux-gnueabihf/ld-linux.so.3 => /lib/ld-linux-armhf.so.3 (0xb6f82000)

 

The line for libcofi_rpi.so is missing from the ldd-inside, but the file (/usr/lib/arm-linux-gnueabihf/libcofi_rpi.so) is inside the jail!

 

When I look at strace output (strace running outside the jail watching jailed processes), I see that the execve of /bin/grep fails with ENOENT, but the file for /bin/grep is there.

 

Any ideas?

 

Thanks - Tzvi.

--

Tzvi Edelman cell:+972-50-849-8805  <address@hidden> H.323:tevid.no-ip.biz

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