Help upgrading Netgear R7800 - r44483 to r51506

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graficdes
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Joined: 02 Apr 2015
Posts: 18

PostPosted: Fri Feb 03, 2023 3:21    Post subject: Help upgrading Netgear R7800 - r44483 to r51506 Reply with quote
I have an older installation running:
DD-WRT v3.0-r44483 std (10/02/20)

I'd like to update it to:
r51506 (01/25/23)
https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=333802&highlight=r7800

Can I simply do a web upgrade, or is there anything specific I need to be concerned about when upgrading from such an "old" firmware?

I'm reading the installation guide at https://wiki.dd-wrt.com/wiki/index.php/Installation and the product-specific install guide at https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614 but I'm hoping for some information specific to this kind of situation. I don't presume most users run 2+ year old firmware and have to leapfrog so many versions.

Any guidance would be much appreciated.

gd.
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egc
DD-WRT Guru


Joined: 18 Mar 2014
Posts: 12837
Location: Netherlands

PostPosted: Fri Feb 03, 2023 7:09    Post subject: Reply with quote
Coming from such an old build a reset to defaults *after* upgrading is recommended, put settings in manually, never restore from a backup (to a different build).

The latest R7800 guide has a list of builds which are tested for a longer time.

So first make screenshots of your setup, your browser can print to pdf
Then Upgrade
After upgrade login and set password
Reset to defaults, either with the reset button, from the GUI or from command line: nvram erase && reboot
Put settings in manually

_________________
Routers:Netgear R7000, R6400v1, R6400v2, EA6900 (XvortexCFE), E2000, E1200v1, WRT54GS v1.
Install guide R6400v2, R6700v3,XR300:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
Install guide R7800/XR500: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614
Forum Guide Lines (important read):https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087
matjazk
DD-WRT User


Joined: 21 Aug 2019
Posts: 120
Location: Here, There And Everywhere

PostPosted: Fri Feb 03, 2023 9:49    Post subject: Reply with quote
With respect to "remembering" old settings, my suggestion is to do

nvram show > /tmp/nvram.txt

and then get the file to your local computer (scp).

Thus you can at least look at the variables (in plain text) if you discover that you forgot to make some screenshots.
graficdes
DD-WRT Novice


Joined: 02 Apr 2015
Posts: 18

PostPosted: Fri Feb 03, 2023 16:09    Post subject: Reply with quote
@egc
You mentioned the latest R800 guide having a list of tested builds. Where can I find that guide?

@matjazk
Thanks for the good suggestion. It's primarily the static IP table, which is tedious to enter every time. I wish there was an import / export function for the static lease table similar to the one for traffic stats.

gd.
egc
DD-WRT Guru


Joined: 18 Mar 2014
Posts: 12837
Location: Netherlands

PostPosted: Fri Feb 03, 2023 16:18    Post subject: Reply with quote
Static leases can be set in the Additional DNSMasq options e.g.:
Quote:
dhcp-host=BC:EE:7B:AB:CD:EF,pc-download,192.168.1.59,1440m


You can get your current entries with:
Quote:
grep dhcp-host /tmp/dnsmasq.conf


So get those from you current build and paste in the Additional Options Smile

The guide is the one you already mentioned in your first post: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614 Smile

_________________
Routers:Netgear R7000, R6400v1, R6400v2, EA6900 (XvortexCFE), E2000, E1200v1, WRT54GS v1.
Install guide R6400v2, R6700v3,XR300:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
Install guide R7800/XR500: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614
Forum Guide Lines (important read):https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087
ho1Aetoo
DD-WRT Guru


Joined: 19 Feb 2019
Posts: 2927
Location: Germany

PostPosted: Fri Feb 03, 2023 16:41    Post subject: Reply with quote
I usually do this with the nvram method

Code:
root@DD-WRT:~# nvram get static_leases
aa:4a:3b:44:99:22=device1=192.168.1.100= 25:b9:07:92:71:b4=device2=192.168.1.101=1440

root@DD-WRT:~# nvram set static_leases='aa:4a:3b:44:99:22=device1=192.168.1.100= 25:b9:07:92:71:b4=device2=192.168.1.101=1440'
graficdes
DD-WRT Novice


Joined: 02 Apr 2015
Posts: 18

PostPosted: Fri Feb 03, 2023 17:52    Post subject: Reply with quote
@egc
OK, I wasn't sure that was the same list you were referring to. So you think the 51140 build might be a better option than 51506 being that it's been tested for a while...

Regarding your suggestion for exporting the static address info, I wasn't aware of that technique. Will check it out tonight. Thanks!

@ho1Aetoo
Wasn't aware of that technique either. Thanks!

gd.
egc
DD-WRT Guru


Joined: 18 Mar 2014
Posts: 12837
Location: Netherlands

PostPosted: Fri Feb 03, 2023 18:13    Post subject: Reply with quote
In the latest guide the most recent tested version is 51440.

But if you look in the build threads 51530 should also be good.

_________________
Routers:Netgear R7000, R6400v1, R6400v2, EA6900 (XvortexCFE), E2000, E1200v1, WRT54GS v1.
Install guide R6400v2, R6700v3,XR300:https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=316399
Install guide R7800/XR500: https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=320614
Forum Guide Lines (important read):https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087
graficdes
DD-WRT Novice


Joined: 02 Apr 2015
Posts: 18

PostPosted: Sun Feb 12, 2023 17:59    Post subject: Reply with quote
I got very sidetracked with work the last week, but I'm hoping to do the upgrade next week. I'm going to go with 51530. Is there a way to export the WIFI mac address restriction list from the command line and then import it into the new build, similar to exporting the DHCP table
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