Hi all.
When a Container is created and started for the very first time, it connects normally and receives an ip4 but when it is stopped and started again, there is no connection and no ip is assigned nor listed on lxc list.
I found that in my host system, the eth0 has been renamed to enp4s0, as shown by
dmesg | grep -i eth0 [ 1.662836] alx 0000:04:00.0 eth0: Qualcomm Atheros AR816x/AR817x Ethernet [d8:cb:8a:7e:f9:c4] [ 1.690752] alx 0000:04:00.0 enp4s0: renamed from eth0
This is the content of /etc/network/interfaces
auto lo iface lo inet loopback
This is the result of “ip address”
`
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp4s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether d8:cb:8a:7e:f9:c4 brd ff:ff:ff:ff:ff:ff
3: wlp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether 34:e6:ad:d9:95:31 brd ff:ff:ff:ff:ff:ff
inet 192.168.0.105/24 brd 192.168.0.255 scope global dynamic noprefixroute wlp3s0
valid_lft 79896sec preferred_lft 79896sec
inet6 fe80::89ea:c17d:4ac6:65c0/64 scope link noprefixroute
valid_lft forever preferred_lft forever
4: lxdbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
inet 10.135.103.1/24 scope global lxdbr0
valid_lft forever preferred_lft forever
inet6 fd42:dd6b:8ee:7e76::1/64 scope global
valid_lft forever preferred_lft forever
inet6 fe80::3c28:93ff:fe52:575b/64 scope link
valid_lft forever preferred_lft forever
5: bridge: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
inet 10.65.130.1/24 scope global bridge
valid_lft forever preferred_lft forever
inet6 fd42:6ceb:7766:3f6b::1/64 scope global
valid_lft forever preferred_lft forever
inet6 fe80::a8de:5eff:feb1:3565/64 scope link
valid_lft forever preferred_lft forever
6: edibr0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
link/ether fe:28:15:59:27:81 brd ff:ff:ff:ff:ff:ff
inet 10.75.186.1/24 scope global edibr0
valid_lft forever preferred_lft forever
inet6 fd42:4431:1822:5f5e::1/64 scope global
valid_lft forever preferred_lft forever
inet6 fe80::cca9:dfff:fe28:d273/64 scope link
valid_lft forever preferred_lft forever
9: br-5498824db770: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
link/ether 02:42:be:d1:16:c6 brd ff:ff:ff:ff:ff:ff
inet 172.18.0.1/16 brd 172.18.255.255 scope global br-5498824db770
valid_lft forever preferred_lft forever
10: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
link/ether 02:42:49:ea:6b:9f brd ff:ff:ff:ff:ff:ff
inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
valid_lft forever preferred_lft forever
11: br-d0a7f1d803e0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
link/ether 02:42:2d:b8:f7:9b brd ff:ff:ff:ff:ff:ff
inet 10.0.0.1/28 brd 10.0.0.15 scope global br-d0a7f1d803e0
valid_lft forever preferred_lft forever
47: vethEXS7R6@if46: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master edibr0 state UP group default qlen 1000
link/ether fe:28:15:59:27:81 brd ff:ff:ff:ff:ff:ff link-netnsid 0
inet6 fe80::fc28:15ff:fe59:2781/64 scope link
valid_lft forever preferred_lft forever
`
My system configuration has SELinux enabled and I would prefer not to edit it.
The question is: if the lxc starts normally on the initial run without any change in the system configuration, why it will not start a second time? What must be changed in the Container or lxc to allow a normal connection in subsequent startups?
Thank you in advance!