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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Unable to get IP address via DHCP on HP ProLiant DL380 Gen9 with Debian (lemm.ee)

submitted 1 month ago by [email protected] to c/[email protected]

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I'm having trouble getting an IP address via DHCP on my HP ProLiant DL380 Gen9 server running Debian. I've tried various troubleshooting steps, but nothing seems to work.

Error messages:

"No DHCPOFFERS received"
"No working leases in persistent database - sleeping"
"Activation of network connection failed" (GNOME)
"IP configuration unavailable" (Plasma)

Hardware:

HP ProLiant DL380 Gen9 server

Software:

Debian operating system
GNOME and Plasma desktop environments

Troubleshooting steps:

Checked network cable and ensured it's properly connected
Restarted network service
Set /etc/NetworkManager/NetworkManager.conf managed=true

Additional information:

Internet worked during the Debian installation process, but not after booting into the installed system.
The problem occurs on both GNOME and Plasma desktop environments, but Plasma provides a slightly more helpful error message.

I'd appreciate any help or guidance on resolving this issue. Has anyone else experienced similar problems with DHCP on a HP ProLiant DL380 Gen9 server with Debian?

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[–] [email protected] 1 points 1 month ago* (last edited 1 month ago) (1 children)

I believe the installer version of Debian uses a newer kernel than the one it installs later, that's why your ethernet worked during installation. Sounds like a borked driver for the specific ethernet adapter and the older kernel. Get a usb-2-ethernet adapter, and retry to update the system, in case you get a newer kernel after updating it.

[–] [email protected] 1 points 1 month ago (1 children)

Thanks for the tip! So, just to clarify, you think that if I used an Ethernet female to USB2 male adapter, the drivers might work correctly? Might trying a different distro also work? I already tried Fedora and something else, maybe Manjaro? They didn't even get to the install screen, but maybe I should try some others that have newer drivers. Any recommendations?

[–] [email protected] 3 points 1 month ago (1 children)

Instead of re-installing, just use a usb ethernet adapter and see if that works. Linux supports most of them, but do some checking regardless online for the most compatible ones. Then update the system, remove that usb adapter, rebot. Now see if the original ethernet works. If still not, then continue using the usb adapter as your main source for networking.

[–] [email protected] 1 points 1 month ago

They could also install a newer kernel from backports