Gentoo: how do I get an IP assigned to the network interface?

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I'm trying to install Gentoo from the LiveCD (just for fun as well as for getting better understanding what's going on under the Linux's hood) on my notebook.
I've faced an issue which is not described in manuals quite well.
When I'm trying to ping anything:



livecd~# ping 8.8.8.8


I'm getting this:



connect: Network is unreachable


There are three interfaces presented: lo, enp30s0 and wlp4s0. None of them has IP assigned.
As the notebook should connect to the network using wi-fi, I suppose the default interface is wlp4s0.
I'm trying to bring it up:



livecd~# ip link set wlp4s0 up


but with no luck, it still has state DOWN.



UPDATE:



Anyway, other devices (notebook, phone, tablet) have perfect wifi connection.



 livecd~# uname -a
Linux livecd 3.18.12-gentoo #1 SMP Thu Jun 4 06:18:47 UTC 2015 x86_64 Intel(R) Core(TM) i3 CPU M 370 @ 2.40GHz GenuineIntel GNU/Linux

livecd~# lspci -v -nn | grep Network -A1
04:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N + WiMAX 6250 [Kilmer Peak] [8086:0089] (rev 5f)
Subsystem: Intel Corporation Centrino Advanced-N + WiMAX 6250 2x2 AGN [8086:1311]









share|improve this question























  • Did you follow the section on wiki.gentoo.org/wiki/Handbook:AMD64/Networking/Wireless setup wireless (also the /etc/conf.d/net)?
    – HidekiAI
    Jun 15 '15 at 22:42










  • If you're on DHCP, try net-setup wlp4s0. Read the Handbook as @HidekiAI recommends, and also read the motd after logging in, which states about halfway down: If you need to setup network devices, or if they're not already setup, use net-setup.
    – eyoung100
    Jun 16 '15 at 5:24











  • @HidekiAI I've tried, but got some problems there as well. @eyoung100 after setting up with net-setup the problem was still actual
    – hdf
    Jun 24 '15 at 20:52










  • @hdf let's try determining whether it is your WiMax driver (i.e. you need to modprobe it) or your network in general. Try forcing static ip via: 'ifconfig wlp4s0 <some_static_ip>; route add default gw <your_gateway_ip>' (i.e. 'ifconfig wlp4s0 10.0.10.100; route add default gw 10.0.10.1; ifconfig wlp4s0 up')
    – HidekiAI
    Jun 25 '15 at 17:21










  • @HidekiAI Thank you! I actually gave up on wireless interface so far and used ethernet.
    – hdf
    Jul 2 '15 at 5:13














up vote
0
down vote

favorite












I'm trying to install Gentoo from the LiveCD (just for fun as well as for getting better understanding what's going on under the Linux's hood) on my notebook.
I've faced an issue which is not described in manuals quite well.
When I'm trying to ping anything:



livecd~# ping 8.8.8.8


I'm getting this:



connect: Network is unreachable


There are three interfaces presented: lo, enp30s0 and wlp4s0. None of them has IP assigned.
As the notebook should connect to the network using wi-fi, I suppose the default interface is wlp4s0.
I'm trying to bring it up:



livecd~# ip link set wlp4s0 up


but with no luck, it still has state DOWN.



UPDATE:



Anyway, other devices (notebook, phone, tablet) have perfect wifi connection.



 livecd~# uname -a
Linux livecd 3.18.12-gentoo #1 SMP Thu Jun 4 06:18:47 UTC 2015 x86_64 Intel(R) Core(TM) i3 CPU M 370 @ 2.40GHz GenuineIntel GNU/Linux

livecd~# lspci -v -nn | grep Network -A1
04:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N + WiMAX 6250 [Kilmer Peak] [8086:0089] (rev 5f)
Subsystem: Intel Corporation Centrino Advanced-N + WiMAX 6250 2x2 AGN [8086:1311]









share|improve this question























  • Did you follow the section on wiki.gentoo.org/wiki/Handbook:AMD64/Networking/Wireless setup wireless (also the /etc/conf.d/net)?
    – HidekiAI
    Jun 15 '15 at 22:42










  • If you're on DHCP, try net-setup wlp4s0. Read the Handbook as @HidekiAI recommends, and also read the motd after logging in, which states about halfway down: If you need to setup network devices, or if they're not already setup, use net-setup.
    – eyoung100
    Jun 16 '15 at 5:24











  • @HidekiAI I've tried, but got some problems there as well. @eyoung100 after setting up with net-setup the problem was still actual
    – hdf
    Jun 24 '15 at 20:52










  • @hdf let's try determining whether it is your WiMax driver (i.e. you need to modprobe it) or your network in general. Try forcing static ip via: 'ifconfig wlp4s0 <some_static_ip>; route add default gw <your_gateway_ip>' (i.e. 'ifconfig wlp4s0 10.0.10.100; route add default gw 10.0.10.1; ifconfig wlp4s0 up')
    – HidekiAI
    Jun 25 '15 at 17:21










  • @HidekiAI Thank you! I actually gave up on wireless interface so far and used ethernet.
    – hdf
    Jul 2 '15 at 5:13












up vote
0
down vote

favorite









up vote
0
down vote

favorite











I'm trying to install Gentoo from the LiveCD (just for fun as well as for getting better understanding what's going on under the Linux's hood) on my notebook.
I've faced an issue which is not described in manuals quite well.
When I'm trying to ping anything:



livecd~# ping 8.8.8.8


I'm getting this:



connect: Network is unreachable


There are three interfaces presented: lo, enp30s0 and wlp4s0. None of them has IP assigned.
As the notebook should connect to the network using wi-fi, I suppose the default interface is wlp4s0.
I'm trying to bring it up:



livecd~# ip link set wlp4s0 up


but with no luck, it still has state DOWN.



UPDATE:



Anyway, other devices (notebook, phone, tablet) have perfect wifi connection.



 livecd~# uname -a
Linux livecd 3.18.12-gentoo #1 SMP Thu Jun 4 06:18:47 UTC 2015 x86_64 Intel(R) Core(TM) i3 CPU M 370 @ 2.40GHz GenuineIntel GNU/Linux

livecd~# lspci -v -nn | grep Network -A1
04:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N + WiMAX 6250 [Kilmer Peak] [8086:0089] (rev 5f)
Subsystem: Intel Corporation Centrino Advanced-N + WiMAX 6250 2x2 AGN [8086:1311]









share|improve this question















I'm trying to install Gentoo from the LiveCD (just for fun as well as for getting better understanding what's going on under the Linux's hood) on my notebook.
I've faced an issue which is not described in manuals quite well.
When I'm trying to ping anything:



livecd~# ping 8.8.8.8


I'm getting this:



connect: Network is unreachable


There are three interfaces presented: lo, enp30s0 and wlp4s0. None of them has IP assigned.
As the notebook should connect to the network using wi-fi, I suppose the default interface is wlp4s0.
I'm trying to bring it up:



livecd~# ip link set wlp4s0 up


but with no luck, it still has state DOWN.



UPDATE:



Anyway, other devices (notebook, phone, tablet) have perfect wifi connection.



 livecd~# uname -a
Linux livecd 3.18.12-gentoo #1 SMP Thu Jun 4 06:18:47 UTC 2015 x86_64 Intel(R) Core(TM) i3 CPU M 370 @ 2.40GHz GenuineIntel GNU/Linux

livecd~# lspci -v -nn | grep Network -A1
04:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N + WiMAX 6250 [Kilmer Peak] [8086:0089] (rev 5f)
Subsystem: Intel Corporation Centrino Advanced-N + WiMAX 6250 2x2 AGN [8086:1311]






linux networking ip gentoo






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edited 18 mins ago









Rui F Ribeiro

37.3k1374118




37.3k1374118










asked Jun 13 '15 at 1:31









hdf

741314




741314











  • Did you follow the section on wiki.gentoo.org/wiki/Handbook:AMD64/Networking/Wireless setup wireless (also the /etc/conf.d/net)?
    – HidekiAI
    Jun 15 '15 at 22:42










  • If you're on DHCP, try net-setup wlp4s0. Read the Handbook as @HidekiAI recommends, and also read the motd after logging in, which states about halfway down: If you need to setup network devices, or if they're not already setup, use net-setup.
    – eyoung100
    Jun 16 '15 at 5:24











  • @HidekiAI I've tried, but got some problems there as well. @eyoung100 after setting up with net-setup the problem was still actual
    – hdf
    Jun 24 '15 at 20:52










  • @hdf let's try determining whether it is your WiMax driver (i.e. you need to modprobe it) or your network in general. Try forcing static ip via: 'ifconfig wlp4s0 <some_static_ip>; route add default gw <your_gateway_ip>' (i.e. 'ifconfig wlp4s0 10.0.10.100; route add default gw 10.0.10.1; ifconfig wlp4s0 up')
    – HidekiAI
    Jun 25 '15 at 17:21










  • @HidekiAI Thank you! I actually gave up on wireless interface so far and used ethernet.
    – hdf
    Jul 2 '15 at 5:13
















  • Did you follow the section on wiki.gentoo.org/wiki/Handbook:AMD64/Networking/Wireless setup wireless (also the /etc/conf.d/net)?
    – HidekiAI
    Jun 15 '15 at 22:42










  • If you're on DHCP, try net-setup wlp4s0. Read the Handbook as @HidekiAI recommends, and also read the motd after logging in, which states about halfway down: If you need to setup network devices, or if they're not already setup, use net-setup.
    – eyoung100
    Jun 16 '15 at 5:24











  • @HidekiAI I've tried, but got some problems there as well. @eyoung100 after setting up with net-setup the problem was still actual
    – hdf
    Jun 24 '15 at 20:52










  • @hdf let's try determining whether it is your WiMax driver (i.e. you need to modprobe it) or your network in general. Try forcing static ip via: 'ifconfig wlp4s0 <some_static_ip>; route add default gw <your_gateway_ip>' (i.e. 'ifconfig wlp4s0 10.0.10.100; route add default gw 10.0.10.1; ifconfig wlp4s0 up')
    – HidekiAI
    Jun 25 '15 at 17:21










  • @HidekiAI Thank you! I actually gave up on wireless interface so far and used ethernet.
    – hdf
    Jul 2 '15 at 5:13















Did you follow the section on wiki.gentoo.org/wiki/Handbook:AMD64/Networking/Wireless setup wireless (also the /etc/conf.d/net)?
– HidekiAI
Jun 15 '15 at 22:42




Did you follow the section on wiki.gentoo.org/wiki/Handbook:AMD64/Networking/Wireless setup wireless (also the /etc/conf.d/net)?
– HidekiAI
Jun 15 '15 at 22:42












If you're on DHCP, try net-setup wlp4s0. Read the Handbook as @HidekiAI recommends, and also read the motd after logging in, which states about halfway down: If you need to setup network devices, or if they're not already setup, use net-setup.
– eyoung100
Jun 16 '15 at 5:24





If you're on DHCP, try net-setup wlp4s0. Read the Handbook as @HidekiAI recommends, and also read the motd after logging in, which states about halfway down: If you need to setup network devices, or if they're not already setup, use net-setup.
– eyoung100
Jun 16 '15 at 5:24













@HidekiAI I've tried, but got some problems there as well. @eyoung100 after setting up with net-setup the problem was still actual
– hdf
Jun 24 '15 at 20:52




@HidekiAI I've tried, but got some problems there as well. @eyoung100 after setting up with net-setup the problem was still actual
– hdf
Jun 24 '15 at 20:52












@hdf let's try determining whether it is your WiMax driver (i.e. you need to modprobe it) or your network in general. Try forcing static ip via: 'ifconfig wlp4s0 <some_static_ip>; route add default gw <your_gateway_ip>' (i.e. 'ifconfig wlp4s0 10.0.10.100; route add default gw 10.0.10.1; ifconfig wlp4s0 up')
– HidekiAI
Jun 25 '15 at 17:21




@hdf let's try determining whether it is your WiMax driver (i.e. you need to modprobe it) or your network in general. Try forcing static ip via: 'ifconfig wlp4s0 <some_static_ip>; route add default gw <your_gateway_ip>' (i.e. 'ifconfig wlp4s0 10.0.10.100; route add default gw 10.0.10.1; ifconfig wlp4s0 up')
– HidekiAI
Jun 25 '15 at 17:21












@HidekiAI Thank you! I actually gave up on wireless interface so far and used ethernet.
– hdf
Jul 2 '15 at 5:13




@HidekiAI Thank you! I actually gave up on wireless interface so far and used ethernet.
– hdf
Jul 2 '15 at 5:13










1 Answer
1






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up vote
0
down vote













I'm going to ignore your wireless interface for now, because I've seen lots of wireless APs with security that are just a complete pain to set up WPA2 on the commandline (somewhere that a GUI, even a CLI one like wicd shines).



Make sure an ethernet cable is plugged in, and you know it works:



ifconfig enp30s0 up
ethtool enp30s0


It should show that the interface has link, and show a speed. If it's not, then something is wrong, test via the following list: router, cable, network card, ethernet card firmware, PCI bus.



If you can reboot to another OS and confirm it works via that cable, then I'd bet on an issue with ethernet card firmware, which does sadly happen. If that is the case, can you post the output of the following commands:



uname -a
# The numbers at the start and in the square brackets are the most critical pieces.
lspci -v -nn |grep Ethernet -A1
# Anything that looks non-default
dmidecode -t 1,2,3





share|improve this answer




















  • Ignoring wireless interface is not an option for me as my cable is not connectable to the notebook.
    – hdf
    Jun 24 '15 at 19:42










  • updated the question with the output
    – hdf
    Jun 24 '15 at 19:57











  • That's the wired network device, not the wireless one; why do you say the the cable is not connectable to the notebook? Can you please show the lspci output for the wireless network card as well? It might start with 'Network controller' instead of 'Ethernet controller'
    – robbat2
    Jun 24 '15 at 21:21











  • my bad livecd~# lspci -v -nn | grep Network -A1 04:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N + WiMAX 6250 [Kilmer Peak] [8086:0089] (rev 5f) Subsystem: Intel Corporation Centrino Advanced-N + WiMAX 6250 2x2 AGN [8086:1311] Thank you so much
    – hdf
    Jun 24 '15 at 21:43











  • What laptop is this? I think you're going to have to install the OS using the ethernet, and then use WiFI later as it looks like a firmware issue with that wireless interface.
    – robbat2
    Jun 25 '15 at 0:15










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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
0
down vote













I'm going to ignore your wireless interface for now, because I've seen lots of wireless APs with security that are just a complete pain to set up WPA2 on the commandline (somewhere that a GUI, even a CLI one like wicd shines).



Make sure an ethernet cable is plugged in, and you know it works:



ifconfig enp30s0 up
ethtool enp30s0


It should show that the interface has link, and show a speed. If it's not, then something is wrong, test via the following list: router, cable, network card, ethernet card firmware, PCI bus.



If you can reboot to another OS and confirm it works via that cable, then I'd bet on an issue with ethernet card firmware, which does sadly happen. If that is the case, can you post the output of the following commands:



uname -a
# The numbers at the start and in the square brackets are the most critical pieces.
lspci -v -nn |grep Ethernet -A1
# Anything that looks non-default
dmidecode -t 1,2,3





share|improve this answer




















  • Ignoring wireless interface is not an option for me as my cable is not connectable to the notebook.
    – hdf
    Jun 24 '15 at 19:42










  • updated the question with the output
    – hdf
    Jun 24 '15 at 19:57











  • That's the wired network device, not the wireless one; why do you say the the cable is not connectable to the notebook? Can you please show the lspci output for the wireless network card as well? It might start with 'Network controller' instead of 'Ethernet controller'
    – robbat2
    Jun 24 '15 at 21:21











  • my bad livecd~# lspci -v -nn | grep Network -A1 04:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N + WiMAX 6250 [Kilmer Peak] [8086:0089] (rev 5f) Subsystem: Intel Corporation Centrino Advanced-N + WiMAX 6250 2x2 AGN [8086:1311] Thank you so much
    – hdf
    Jun 24 '15 at 21:43











  • What laptop is this? I think you're going to have to install the OS using the ethernet, and then use WiFI later as it looks like a firmware issue with that wireless interface.
    – robbat2
    Jun 25 '15 at 0:15














up vote
0
down vote













I'm going to ignore your wireless interface for now, because I've seen lots of wireless APs with security that are just a complete pain to set up WPA2 on the commandline (somewhere that a GUI, even a CLI one like wicd shines).



Make sure an ethernet cable is plugged in, and you know it works:



ifconfig enp30s0 up
ethtool enp30s0


It should show that the interface has link, and show a speed. If it's not, then something is wrong, test via the following list: router, cable, network card, ethernet card firmware, PCI bus.



If you can reboot to another OS and confirm it works via that cable, then I'd bet on an issue with ethernet card firmware, which does sadly happen. If that is the case, can you post the output of the following commands:



uname -a
# The numbers at the start and in the square brackets are the most critical pieces.
lspci -v -nn |grep Ethernet -A1
# Anything that looks non-default
dmidecode -t 1,2,3





share|improve this answer




















  • Ignoring wireless interface is not an option for me as my cable is not connectable to the notebook.
    – hdf
    Jun 24 '15 at 19:42










  • updated the question with the output
    – hdf
    Jun 24 '15 at 19:57











  • That's the wired network device, not the wireless one; why do you say the the cable is not connectable to the notebook? Can you please show the lspci output for the wireless network card as well? It might start with 'Network controller' instead of 'Ethernet controller'
    – robbat2
    Jun 24 '15 at 21:21











  • my bad livecd~# lspci -v -nn | grep Network -A1 04:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N + WiMAX 6250 [Kilmer Peak] [8086:0089] (rev 5f) Subsystem: Intel Corporation Centrino Advanced-N + WiMAX 6250 2x2 AGN [8086:1311] Thank you so much
    – hdf
    Jun 24 '15 at 21:43











  • What laptop is this? I think you're going to have to install the OS using the ethernet, and then use WiFI later as it looks like a firmware issue with that wireless interface.
    – robbat2
    Jun 25 '15 at 0:15












up vote
0
down vote










up vote
0
down vote









I'm going to ignore your wireless interface for now, because I've seen lots of wireless APs with security that are just a complete pain to set up WPA2 on the commandline (somewhere that a GUI, even a CLI one like wicd shines).



Make sure an ethernet cable is plugged in, and you know it works:



ifconfig enp30s0 up
ethtool enp30s0


It should show that the interface has link, and show a speed. If it's not, then something is wrong, test via the following list: router, cable, network card, ethernet card firmware, PCI bus.



If you can reboot to another OS and confirm it works via that cable, then I'd bet on an issue with ethernet card firmware, which does sadly happen. If that is the case, can you post the output of the following commands:



uname -a
# The numbers at the start and in the square brackets are the most critical pieces.
lspci -v -nn |grep Ethernet -A1
# Anything that looks non-default
dmidecode -t 1,2,3





share|improve this answer












I'm going to ignore your wireless interface for now, because I've seen lots of wireless APs with security that are just a complete pain to set up WPA2 on the commandline (somewhere that a GUI, even a CLI one like wicd shines).



Make sure an ethernet cable is plugged in, and you know it works:



ifconfig enp30s0 up
ethtool enp30s0


It should show that the interface has link, and show a speed. If it's not, then something is wrong, test via the following list: router, cable, network card, ethernet card firmware, PCI bus.



If you can reboot to another OS and confirm it works via that cable, then I'd bet on an issue with ethernet card firmware, which does sadly happen. If that is the case, can you post the output of the following commands:



uname -a
# The numbers at the start and in the square brackets are the most critical pieces.
lspci -v -nn |grep Ethernet -A1
# Anything that looks non-default
dmidecode -t 1,2,3






share|improve this answer












share|improve this answer



share|improve this answer










answered Jun 16 '15 at 19:34









robbat2

2,463826




2,463826











  • Ignoring wireless interface is not an option for me as my cable is not connectable to the notebook.
    – hdf
    Jun 24 '15 at 19:42










  • updated the question with the output
    – hdf
    Jun 24 '15 at 19:57











  • That's the wired network device, not the wireless one; why do you say the the cable is not connectable to the notebook? Can you please show the lspci output for the wireless network card as well? It might start with 'Network controller' instead of 'Ethernet controller'
    – robbat2
    Jun 24 '15 at 21:21











  • my bad livecd~# lspci -v -nn | grep Network -A1 04:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N + WiMAX 6250 [Kilmer Peak] [8086:0089] (rev 5f) Subsystem: Intel Corporation Centrino Advanced-N + WiMAX 6250 2x2 AGN [8086:1311] Thank you so much
    – hdf
    Jun 24 '15 at 21:43











  • What laptop is this? I think you're going to have to install the OS using the ethernet, and then use WiFI later as it looks like a firmware issue with that wireless interface.
    – robbat2
    Jun 25 '15 at 0:15
















  • Ignoring wireless interface is not an option for me as my cable is not connectable to the notebook.
    – hdf
    Jun 24 '15 at 19:42










  • updated the question with the output
    – hdf
    Jun 24 '15 at 19:57











  • That's the wired network device, not the wireless one; why do you say the the cable is not connectable to the notebook? Can you please show the lspci output for the wireless network card as well? It might start with 'Network controller' instead of 'Ethernet controller'
    – robbat2
    Jun 24 '15 at 21:21











  • my bad livecd~# lspci -v -nn | grep Network -A1 04:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N + WiMAX 6250 [Kilmer Peak] [8086:0089] (rev 5f) Subsystem: Intel Corporation Centrino Advanced-N + WiMAX 6250 2x2 AGN [8086:1311] Thank you so much
    – hdf
    Jun 24 '15 at 21:43











  • What laptop is this? I think you're going to have to install the OS using the ethernet, and then use WiFI later as it looks like a firmware issue with that wireless interface.
    – robbat2
    Jun 25 '15 at 0:15















Ignoring wireless interface is not an option for me as my cable is not connectable to the notebook.
– hdf
Jun 24 '15 at 19:42




Ignoring wireless interface is not an option for me as my cable is not connectable to the notebook.
– hdf
Jun 24 '15 at 19:42












updated the question with the output
– hdf
Jun 24 '15 at 19:57





updated the question with the output
– hdf
Jun 24 '15 at 19:57













That's the wired network device, not the wireless one; why do you say the the cable is not connectable to the notebook? Can you please show the lspci output for the wireless network card as well? It might start with 'Network controller' instead of 'Ethernet controller'
– robbat2
Jun 24 '15 at 21:21





That's the wired network device, not the wireless one; why do you say the the cable is not connectable to the notebook? Can you please show the lspci output for the wireless network card as well? It might start with 'Network controller' instead of 'Ethernet controller'
– robbat2
Jun 24 '15 at 21:21













my bad livecd~# lspci -v -nn | grep Network -A1 04:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N + WiMAX 6250 [Kilmer Peak] [8086:0089] (rev 5f) Subsystem: Intel Corporation Centrino Advanced-N + WiMAX 6250 2x2 AGN [8086:1311] Thank you so much
– hdf
Jun 24 '15 at 21:43





my bad livecd~# lspci -v -nn | grep Network -A1 04:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N + WiMAX 6250 [Kilmer Peak] [8086:0089] (rev 5f) Subsystem: Intel Corporation Centrino Advanced-N + WiMAX 6250 2x2 AGN [8086:1311] Thank you so much
– hdf
Jun 24 '15 at 21:43













What laptop is this? I think you're going to have to install the OS using the ethernet, and then use WiFI later as it looks like a firmware issue with that wireless interface.
– robbat2
Jun 25 '15 at 0:15




What laptop is this? I think you're going to have to install the OS using the ethernet, and then use WiFI later as it looks like a firmware issue with that wireless interface.
– robbat2
Jun 25 '15 at 0:15

















 

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