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On 01/20/14 10:02, Joseph wrote: |
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>On 01/20/14 18:45, Alan McKinnon wrote: |
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>>On 01/20/14 18:30, Joseph wrote: |
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>>> After upgrade to "systemd" my /dev/ttyS0 shows up as: root:dialout |
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>>> ownership and permission 600 |
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>>> |
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>>> When I change as root manually to: chown uucp:dialout /dev/ttyS0 |
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>>> chmod 666 /dev/ttyS0 |
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>>> |
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>>> after restart it goes back to previous setting: root:dialout 600 |
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>>> How to change it? |
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>>> |
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>>> My VituralBox complain and will not start with owner: root:dialout |
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>>> /dev/ttyS0 |
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>>> |
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>> |
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>> |
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>>It's a udev rule. Mine looks like this, tweak yours |
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>> |
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>>$ grep -r uucp /lib/udev/rules.d/ |
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>>/lib/udev/rules.d/50-udev-default.rules:KERNEL=="tty[A-Z]*[0-9]|pppox[0-9]*|ircomm[0-9]*|noz[0-9]*|rfcomm[0-9]*", |
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>>GROUP="uucp" |
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>> |
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>> |
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>> |
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>>You'd put your file in /etc/udev/rules.d/, not in /lib/ as above, that's |
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>>the as-shipped location for defaults |
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>> |
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>>-- |
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>>Alan McKinnon |
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>>alan.mckinnon@×××××.com |
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> |
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>Thanks for the hint Alan. |
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>Mine looks like this: |
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>grep -r dialout /lib/udev/rules.d/ |
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>/lib/udev/rules.d/50-udev-default.rules:KERNEL=="tty[A-Z]*[0-9]|pppox[0-9]*|ircomm[0-9]*|noz[0-9]*|rfcomm[0-9]*", GROUP="dialout" |
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> |
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>I think the group "dialout" is OK. What the Virtualbox doesn't like is the ownership, the first part "root" (root:dialout) |
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>How to influence the first part. |
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> |
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>The strange part is that I have upgraded two system and one is shoring ttyS0 as: |
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>uucp:dialout |
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> |
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>and the another one as: |
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>root:dialout. |
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|
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Looking into files: /lib/udev/rules.d/50-udev-default.rules for tty it has: |
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SUBSYSTEM=="tty", KERNEL=="ptmx", GROUP="tty", MODE="0666" |
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SUBSYSTEM=="tty", KERNEL=="tty", GROUP="tty", MODE="0666" |
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SUBSYSTEM=="tty", KERNEL=="tty[0-9]*", GROUP="tty", MODE="0620" |
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SUBSYSTEM=="vc", KERNEL=="vcs*|vcsa*", GROUP="tty" |
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KERNEL=="tty[A-Z]*[0-9]|pppox[0-9]*|ircomm[0-9]*|noz[0-9]*|rfcomm[0-9]*", GROUP="dialout" |
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|
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So I suppose to create my own file in /etc with: |
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SUBSYSTEM=="tty", KERNEL=="tty", GROUP="tty", MODE="0666" |
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SUBSYSTEM=="tty", KERNEL=="tty[0-9]*", GROUP="tty", MODE="0666" |
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KERNEL=="tty[A-Z]*[0-9]|pppox[0-9]*|ircomm[0-9]*|noz[0-9]*|rfcomm[0-9]*", GROUP="uucp" |
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-- |
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Joseph |
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