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Old 11-02-2012, 08:04 AM   #1
fbmd
LQ Newbie
 
Registered: Nov 2010
Location: Germany
Distribution: Gentoo
Posts: 10

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Strange keyboard console problems on virtual Slackware


Hi,

I run Slackware 13 in a virtual container at some vserver host.

I do encounter some strange behaviour on the console via SSH:
  • `less` doesn't work. It quits immediately, without an error message. Editors as `nano` do work.
  • `passwd` does not work. It immediately returns the following:

Code:
$ passwd
Changing password for USER
Enter the new password (minimum of 5 characters)
Please use a combination of upper and lower case letters and numbers.
Bad password: too short.  Try again.
Bad password: too short.  Try again.
Bad password: too short.  Try again.
Bad password: too short.  Try again.
Bad password: too short.  Try again.
The password for resgames is unchanged.
Some web searching brought up that this might be a problem with the /dev file system. It looks like this:

Code:
ls -l /dev/
total 8
lrwxrwxrwx 1 root root      4 2011-01-07 19:24 X0R -> null
drwxr-xr-x 2 root root    160 2012-07-10 22:57 char/
lrwxrwxrwx 1 root root     11 2011-01-07 19:24 core -> /proc/kcore
lrwxrwxrwx 1 root root     13 2011-01-07 19:24 fd -> /proc/self/fd/
crw-rw-rw- 1 root root   1, 7 2012-07-10 22:57 full
prw------- 1 root root      0 2008-08-31 01:19 initctl|
-rw-r--r-- 1 root root     30 2012-07-10 22:57 kmsg
srw-rw-rw- 1 root root      0 2012-07-10 22:57 log=
crw-rw-rw- 1 root root   1, 3 2012-07-10 22:57 null
crw-rw---- 1 root root 108, 0 2008-10-09 13:37 ppp
crw-rw-rw- 1 root tty    5, 2 2012-11-02 13:00 ptmx
drwxr-xr-x 2 root root      0 2012-07-10 22:57 pts/
crw-rw-rw- 1 root root   1, 8 2012-07-10 22:57 random
drwxr-xr-x 2 root root     40 2008-09-23 01:39 shm/
lrwxrwxrwx 1 root root     15 2011-01-07 19:24 stderr -> /proc/self/fd/2
lrwxrwxrwx 1 root root     15 2011-01-07 19:24 stdin -> /proc/self/fd/0
lrwxrwxrwx 1 root root     15 2011-01-07 19:24 stdout -> /proc/self/fd/1
-rw-r--r-- 1 root root     14 2012-11-02 12:43 tty
crw-rw-rw- 1 root root   1, 9 2012-07-10 22:57 urandom
crw-rw-rw- 1 root root   1, 5 2012-07-10 22:57 zero
To me these look like problems reading from the keyboard.

I'm currently at the end of my wits. Any ideas how to tackle this?

Thanks,
fbmd
 
Old 11-03-2012, 10:48 AM   #2
hotchili
Member
 
Registered: Sep 2009
Location: Germany
Distribution: slackware64-current
Posts: 68

Rep: Reputation: 16
Permissions of /dev/tty look weird, thats how it looks here (slackware64-current) and on my debian vserver:
Code:
crw-rw-rw- 1 root tty 5, 0 Nov  3 16:27 /dev/tty
Maybe try (worked fine here in a vm, but better have backups)
Code:
# rm /dev/tty
# mknod -m 0666 /dev/tty c 5 0
# chown root.tty /dev/tty

Last edited by hotchili; 11-03-2012 at 10:53 AM.
 
Old 12-06-2012, 02:29 PM   #3
fbmd
LQ Newbie
 
Registered: Nov 2010
Location: Germany
Distribution: Gentoo
Posts: 10

Original Poster
Rep: Reputation: Disabled
Quote:
Originally Posted by hotchili View Post
Permissions of /dev/tty look weird [...]

Code:
# rm /dev/tty
# mknod -m 0666 /dev/tty c 5 0
# chown root.tty /dev/tty
THANK YOU - that was a life saver!

After months of annoying behaviour, this fixed it, and I can use my machine again to its full extent.

I suspect I must have been copying things around, not honouring char device nodes.

Thanks again!

-fbmd
 
  


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