After upgrading Deb10 to Deb11 - No ip address on boot - Wasted 4 hr's

bingo600

Upgrading my last server from deb10 to deb 11, I just wasted 4 hr's of my life ...

If you use ifupdown2 - See here:
https://www.eevblog.com/forum/networking/after-upgrading-deb10-to-deb11-no-ip-address-on-boot-wasted-4-hrs/msg4983253/#msg4983253

/Bingo

slu

@bingo600
you learn in 4 hours for life.

Gertjan

@bingo600 said in After upgrading Deb10 to Deb11 - No ip address on boot - Wasted 4 hr's:

If you use ifupdown2 - See here:
https://www.eevblog.com/forum/networking/after-upgrading-deb10-to-deb11-no-ip-address-on-boot-wasted-4-hrs/msg4983253/#msg4983253

Hummm.
Am I about to gain 4 hours ?
I have a :

root@ns311465:/etc/network# cat /etc/debian_version
10.13

and will be upgrading it soon to 11.x

My /etc/network/interfaces

.....
auto eth0
iface eth0 inet static
        address 1aa.165.201.123
        netmask 255.255.255.0
        network 1aa.165.201.0
        broadcast 1aa.165.201.255
        gateway 1aa.165.201.254
        post-up /sbin/ifconfig eth0:0 cc.105.79.38 netmask 255.255.255.255 broadcast cc.105.79.38
        post-up /sbin/ifconfig eth0:4 ddd..165.53.87 netmask 255.255.255.255 broadcast ddd.165.53.87
        post-up /sbin/ifconfig eth0:1 ee.98.136.44 netmask 255.255.255.255 broadcast ee.98.136.44
        post-up /sbin/ifconfig eth0:3 ff.98.174.106 netmask 255.255.255.255 broadcast ff.98.174.106
        post-up /sbin/ifconfig eth0:2 g.196.43.182 netmask 255.255.255.255 broadcast g.196.43.182
        post-up /sbin/ifconfig eth0:5 hhh.182.46.28 netmask 255.255.255.255 broadcast hhh.182.46.28
....

is fine ?!

bingo600

@Gertjan said in After upgrading Deb10 to Deb11 - No ip address on boot - Wasted 4 hr's:

Hummm.
Am I about to gain 4 hours ?

I had many Deb10 to 11 that didn't "convert to use" ifupdown2
They were prob. installed as "pure server" (SSH managed).

But my "home server" i also use for Lady Heather diciplining , and needed X-windows.
So it's a initially a Deb9 server , with additional x-windows installed , then upgraded to 10 , and 11

I have no idea if that was what caused the ifupdown2 to install, or even if it was installed on 10.
Just had a look at my old deb10 /etc/networking ... ifupdown2 was present before the upgrade to 11.
So i suppose it could be the removal of python2.x on deb11 , and that python3.x is more restrictive ...

If you see ifupdown2 in ie. /etc/networking or referenced as above, your current "interfaces" file will likely not work.

/Bingo

Gertjan

@bingo600 said in After upgrading Deb10 to Deb11 - No ip address on boot - Wasted 4 hr's:

ifupdown2

Dono what that is / not present on my servers.

bingo600

@Gertjan

It might have been pulled in, when i installed iproute2.
I did that in order to play with some VRF "lookalike" on linux.

/Bingo