Here's hoping this helps.
I've run IPv6 for several years, even some IPv6-only, but (contrary to
what seems to be the norm in IPv6 land) I hard-code fixed IPv6 addresses.
Now ... I have NOT experienced what you describe: a hang while waiting
for a DHCPv6 lease. (when booting installation/recovery media)
Never the less, we should try what you mention: explicitly turn OFF IPv6.
GRUB offers an edit function.
You should be able to edit the boot parm line before letting GRUB loose
to proceed.
But I expect the token you want would NOT contain blanks, so maybe
"ipv6_disable=1"?
(or possibly "ipv6-disable=1" or "ipv6disable=1")
I see that Jeremy cited some Debian discussions. That might help too.
Also look for "rescue" or "rescue shell" as an option from the boot
menu. (If that doesn't lead to the forever wait mentioned above.)
-- R; <><
On 7/15/26 4:57 PM, Steve Thompson wrote:
I am trying to recover a NAS based on Debian/OMV.
I have been reading various Linux explanations on how to write a grub
config file.
I have two different thumb drives one with OMV install and another
with Mint.
I need to tell Debian 13 (Trixie) to NOT use IPV6.
I can't figure out where to put this string, which kills IPV6 for Debian:
ipv6 disable =1 ---- (or something close to this)
Now you may ask why -- I run pfsense and I did not configure DHCP6.
I could, but from all I've been told, one keeps servers on/with IPV4
and static addresses (which I have been doing for years).
So during the install, the system decides to try to communicate with
DHCP6 and then hangs (too bad these systems have no idea about missing
interrupt. Which I think I will suggest to the Debian people -- what
a concept.
Meanwhile if anyone knows the incantation to put the above into the
boot loader (GRUB2 in this case) from the keyboard (and I am not
running terminal mode at this early stage of the game so I can't
sudo.... arg!!
Regards,
Steve Thompson
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-- R; <><
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