11-12-2009
PAM login library files corrupted, have ILOM, can I get root?
I was installing sfw sudo and its dependencies (libiconv, libintl, libgcc)on Solaris 10, running on an x86 x4200 and I corrupted some PAM library files. It's a standard Solaris 10 base install, with some added software & libraries from a vendor.
I am on console trying to get root access back, and receiving this error:
myserver console login: root
Nov 12 15:56:32 myserver login: open_module: /usr/lib/security/pam_login_auth.so failed: ld.so.1: login: fatal: /lib/libgcc_s.so.1: wrong ELF data format: ELFDATA2MSB
Nov 12 15:56:32 myserver login: load_modules: can not open module /usr/lib/security/pam_login_auth.so
The server is configured with LDAP, then local accounts to login. Can't get in with any account via SSH or console. I know the passwords, don't need to do any recovery. It just looks like I've borked the PAM module so badly that it won't allow any user to logon.
I have access to ILOM, is there anything I can try from ILOM to, either get a root prompt, or edit files? I doubt it hey. Would single user mode login prompt not use the same process?
I'm thinking I may have to re-image the host. Any thoughts?
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LEARN ABOUT MOJAVE
sulogin
sulogin(1M) System Administration Commands sulogin(1M)
NAME
sulogin - access single-user mode
SYNOPSIS
sulogin
DESCRIPTION
The sulogin utility is automatically invoked by init when the system is first started. It prompts the user to type the root password to
enter system maintenance mode (single-user mode) or to type EOF (typically <CTRL-D>) for normal startup (multi-user mode). The user should
never directly invoke sulogin.
The sulogin utility can prompt the user to enter the root password on a variable number of serial console devices, in addition to the tra-
ditional console device. See consadm(1M) and msglog(7D) for a description of how to configure a serial device to display the single-user
login prompt.
FILES
/etc/default/sulogin Default value can be set for the following flag:
PASSREQ Determines if login requires a password. Default is PASSREQ=YES.
/etc/default/login Default value can be set for the following flag:
SLEEPTIME If present, sets the number of seconds to wait before login failure is printed to the screen and
another login attempt is allowed. Default is 4 seconds. Minimum is 0 seconds. Maximum is 5 seconds.
Both su(1M) and login(1) are affected by the value of SLEEPTIME.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsr |
+-----------------------------+-----------------------------+
SEE ALSO
login(1), consadm(1M), init(1M), su(1M), attributes(5), msglog(7D)
SunOS 5.10 25 Sep 2002 sulogin(1M)