<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-15" http-equiv="Content-Type"> <title></title> </head> <body bgcolor="#ffffff" text="#000000"> Ola Thoresen wrote: <blockquote cite="midslrndt96oi.7ph.olen@lupus.olen.net" type="cite"> <pre wrap="">2006-01-22 G�nter Schmidt <a class="moz-txt-link-rfc2396E" href="mailto:gsc.news@online.de"><gsc.news@online.de></a> wrote </pre> <blockquote type="cite"> <pre wrap="">Since the latest 'yum update' I cant execute 'su - root' anymore. Even the combination Ctrl+Alt+F1 and login:root can login to root. I can get root access only if I login as root into the graphical desktop. gsc@erica(23)$ strace su - root execve("/bin/su", ["su", "-", "root"], [/* 38 vars */]) = 0 </pre> </blockquote> <pre wrap=""> <snip> </pre> <blockquote type="cite"> <pre wrap="">connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 EACCES (Permission denied) </pre> </blockquote> <pre wrap=""> hmm.. </pre> <blockquote type="cite"> <pre wrap="">open("/etc/passwd", O_RDONLY) = -1 EACCES (Permission denied) </pre> </blockquote> <pre wrap=""> hmm!! </pre> <blockquote type="cite"> <pre wrap="">write(2, "user root does not exist", 24) = 24 </pre> </blockquote> <pre wrap=""> Seems like you have some serious permission problems. </pre> </blockquote> Yes, and I don't know how this happened, perhaps while I had Centos4 booted and accessed the FC5 partition. <blockquote cite="midslrndt96oi.7ph.olen@lupus.olen.net" type="cite"> <pre wrap=""> Have you checked the regular file permissions and selinux context for these files? (ls -lZ /etc/passwd and /var/run/nscd/socket) </pre> </blockquote> No, not with -Z (I have to learn this option :-). The normal file permissions had been ok. But after disabling selinux another 'yum update', touch /.autorelabel, reenable selinux and reboot, 'su - root' is working again. With selinux enabled, the error messages are not really usefull. Regards, Günter. </body> </html>