Network at Boot - Does it ever time out?
February 18, 2023, 00:53
If I set my Pi to wait for Network at Boot, but for some reason my network goes out, will the Pi never boot at all, or will it timeout and just boot normally after awhile?
I have it set to display the IP address on the terminal after boot, but sometimes it's blank after booting, but when I turn on Network at Boot, it works every time. I just don't want it to be completely locked out if the network goes down.
Thanks!
.bashrc is only executed when bash loads
wpa_supplicant will have loaded before systemd finishes initializing
Once I enabled "Network at Boot", it always displays the IP - rather than only showing when I connect via SSH
wdym Network at Boot?
If you go sudo raspi-config and do System Settings > S6: Network at Boot it says "Would you like boot to wait until a network connection is established?"
That doesn't make sense
The bootloader never touches the wifi stack
It loads vmlinuz into memory
The only time it would ever touch the network stack is during a pxe boot
When I enable that, then my line in the bash.rc displays the IP address normally. If I don't do that, it's usually a blank line when it runs hostname -I
It has a 10s timeout
Network at boot
Oh where did you find that? I've been searching and haven't found any official answers
Someone experimented
Ah, okay. I saw that thread, missed that comment.
So do you know why it wouldn't be displaying my IP address at boot if it's not waiting?
Because the standard bootloader never touches the network stack?
So it connects to network after it finishes booting, normally?
I think you and I have a different definition of booting
Well I'm an idiot, so that's entirely likely
Well there are two definitions
I think booting means that the bootloader has completed it's job and the kernel can now start
I think that you think that booting is when the kernel has finished loading
My definition of booting is when I get the command prompt lol
Which on linux means you technically never boot ;)
Because linux doesn't have a command prompt
It's called a tty
and you technically have one from the very start
You can input stuff into the tty once the shell has loaded
Like I said, I'm an idiot lol
Not really
There's a difference between being an idiot and not needing to know
and also just not knowing something
Well thanks for your help. I am running my escape rooms almost entirely through Raspberry Pi's and SSH, so I've learned a lot about Linux over the last couple of years 😅
ah ok
I wrote an OS
so
yk
So we're basically the same 🙂
yea
lmao okay well thanks for your assistance, I won't tie you up any more. Appreciate the help!
No problem my guy