#715491 ifupdown: ifup --force $device does not bring up the device

Package:
ifupdown
Source:
ifupdown
Description:
high level tools to configure network interfaces
Submitter:
yogg
Date:
2024-02-29 03:24:03 UTC
Severity:
important
#715491#5
Date:
2008-07-01 06:12:59 UTC
From:
To:
Dear Maintainer,

ifconfig
-> shows eth0 up and configured

ifconfig eth0 down
-> takes eth0 down

ifup --force eth0
RTNETLINK answers: File exists
-> eth0 is still down

But wit "--force" eth0 should be up after that.




This also effects in some way the xen package.
Script "/etc/xen/scripts/network-bridge" does not work anymore.

The script does something like this (short form)

# create temp brige
brctl addbr tempbr0
brctl stp tempbr0 off
brctl setfd tempbr0 0

# add ip to temp bridge
ip addr add 192.168.1.200/24 brd 192.168.1.255 scope global dev tempbr0 label tempbr0

# take eth0 down
ifdown eth0

# rename eth0 to peth0
ip link set eth0 name peth0

# rename temp bridge to eth0
ip link set tempbr0 name eth0

take down peth0
ip link set peth0 down
ip addr flush peth0

# take up peth0
ip link set peth0 up

# add bridge to peth0
brctl addif eth0 peth0
ip link set peth0 up

# take up eth0 (bridge device)
ifup eth0
RTNETLINK answers: File exists
Failed to bring up eth0




Workarround:
ifdown --force eth0
ifup eth0
#715491#10
Date:
2021-07-23 20:16:36 UTC
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#715491#15
Date:
2021-07-23 20:16:58 UTC
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#715491#20
Date:
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#715491#25
Date:
2022-07-04 21:45:25 UTC
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#715491#30
Date:
2022-09-27 21:38:07 UTC
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#715491#35
Date:
2022-10-31 03:11:02 UTC
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#715491#40
Date:
2024-02-26 04:37:10 UTC
From:
To:
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#715491#45
Date:
2024-02-28 19:15:36 UTC
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