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Stubbs
Tux's lil' helper
Joined: 16 Nov 2003
Posts: 110
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 Posted: Sun Feb 06, 2005 6:10 pm Post subject: Permissions on /dev* |
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Can anyone explain why, on a fresh install, I get this
| Code: | bash-2.05b$ ls -l
total 0
crw-rw---- 1 stuart tty 4, 64 Jan 1 1970 0
crw-rw---- 1 stuart tty 4, 65 Jan 1 1970 1
crw-rw---- 1 stuart tty 4, 66 Jan 1 1970 2
crw-rw---- 1 stuart tty 4, 67 Jan 1 1970 3
crw-rw---- 1 stuart tty 4, 68 Jan 1 1970 4
crw-rw---- 1 stuart tty 4, 69 Jan 1 1970 5
crw-rw---- 1 stuart tty 4, 70 Jan 1 1970 6
crw-rw---- 1 stuart tty 4, 71 Jan 1 1970 7 |
Why is the owner non root? The symlinks /dev/ttyS* are all owned by root, but nothing, not even root can write to the serial port.
I have a DS9097U serial port adaptor and running digitemp on eithe the symlink or the tts/0 file give an error
| Code: | bash-2.05b$ digitemp -w /dev/tts/0
DigiTemp v3.2.0 Copyright 1996-2003 by Brian C. Lane
GNU Public License v2.0 - http://www.brianlane.com
Error, you don't have +rw permission to access |
The 9097 is the only serial device I have to test it with, so does anyone have any ideas? |
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genstef
Retired Dev
Joined: 13 Jun 2004
Posts: 668
Location: M/Bay/Germany
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| Posted: Sun Feb 06, 2005 10:14 pm Post subject: |
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| Because you insxtalled pam, and pam tries to change the permissions when you login. I got rid of that behaviour by removing /etc/security/console.perms. |
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Brazil
Tux's lil' helper
Joined: 08 Apr 2003
Posts: 117
Location: Los Angeles, California
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| Posted: Mon Feb 07, 2005 4:26 am Post subject: |
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I am having problems w/ permissions too... I removed console.perms, and it still doesnt fallow my udev permissions...
Where in pam is this set? And is there anything else that can change the permissions |
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genstef
Retired Dev
Joined: 13 Jun 2004
Posts: 668
Location: M/Bay/Germany
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| Posted: Mon Feb 07, 2005 7:22 am Post subject: |
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| I would suggest you to run "udevstart" to get plain udev permissions. And if you set your permissions in permissions.d keep in mind, that that is obsolete in the latest udev version and is not parsed, instead the rules.d file is to be used. |
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