[lfs-dev] login issues

Bruce Dubbs bruce.dubbs at gmail.com
Thu Feb 4 13:08:11 PST 2016


Roger Koehler wrote:
>> What comes to my mind: What are the permissions and owner of your
> /home/<new user> ?
>
> I tried chmod 777 and also verified correct ownership.
>
> Here's another clue: If I try su without the login ('-') option, I get this
> message:
>
> Cannot execute /bin/bash: Permission denied
>
> ls -l /bin/bash yields:
>
> -rwxr-xr-x root root 1134856 Feb. 1 13:18 /bin/bash

Look at the permissions for the libraries:

$ ldd /bin/bash
         linux-vdso.so.1 (0x00007ffe4abde000)
         libreadline.so.6 => /lib/libreadline.so.6 (0x00007fe9a465e000)
         libhistory.so.6 => /lib/libhistory.so.6 (0x00007fe9a4456000)
         libncursesw.so.6 => /lib/libncursesw.so.6 (0x00007fe9a41ec000)
         libdl.so.2 => /lib/libdl.so.2 (0x00007fe9a3fe8000)
         libc.so.6 => /lib/libc.so.6 (0x00007fe9a3c44000)
         /lib64/ld-linux-x86-64.so.2 (0x00007fe9a48a3000)

$ ls -l /lib/{libreadline,libhistory,libncursesw,libdl,libc,ld}*
-rwxr-xr-x 1 root root  163688 Jan  4 22:27 /lib/ld-2.22.so
lrwxrwxrwx 1 root root      10 Jan  4 22:01 /lib/ld-linux-x86-64.so.2 -> 
ld-2.22.so
-rwxr-xr-x 1 root root 1946912 Jan  4 22:27 /lib/libc-2.22.so
lrwxrwxrwx 1 root root      12 Jan  4 22:01 /lib/libc.so.6 -> libc-2.22.so
lrwxrwxrwx 1 root root      14 Jan  4 22:09 /lib/libcap.so.2 -> libcap.so.2.24
-rwxr-xr-x 1 root root   20576 Jan  4 22:27 /lib/libcap.so.2.24
-rwxr-xr-x 1 root root  196648 Jan  4 22:27 /lib/libcidn-2.22.so
lrwxrwxrwx 1 root root      15 Jan  4 22:01 /lib/libcidn.so.1 -> 
libcidn-2.22.so
lrwxrwxrwx 1 root root      17 Jan  4 22:10 /lib/libcom_err.so.2 -> 
libcom_err.so.2.1
-rwxr-xr-x 1 root root   17760 Jan  4 22:27 /lib/libcom_err.so.2.1
-rwxr-xr-x 1 root root   44512 Jan  4 22:27 /lib/libcrypt-2.22.so
lrwxrwxrwx 1 root root      16 Jan  4 22:01 /lib/libcrypt.so.1 -> 
libcrypt-2.22.so
-rwxr-xr-x 1 root root   18640 Jan  4 22:27 /lib/libdl-2.22.so
lrwxrwxrwx 1 root root      13 Jan  4 22:01 /lib/libdl.so.2 -> libdl-2.22.so
lrwxrwxrwx 1 root root      17 Jan  4 22:13 /lib/libhistory.so.6 -> 
libhistory.so.6.3
-r-xr-xr-x 1 root root   40856 Jan  4 22:27 /lib/libhistory.so.6.3
lrwxrwxrwx 1 root root      18 Jan  4 22:09 /lib/libncursesw.so.6 -> 
libncursesw.so.6.0
-rwxr-xr-x 1 root root  474464 Jan  4 22:27 /lib/libncursesw.so.6.0
lrwxrwxrwx 1 root root      18 Jan  4 22:13 /lib/libreadline.so.6 -> 
libreadline.so.6.3
-r-xr-xr-x 1 root root  325960 Jan  4 22:27 /lib/libreadline.so.6.3

   -- Bruce


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