Enable NFS v4.0 support in kernel

Discussion about U-Boot and the kernel.

Enable NFS v4.0 support in kernel

Postby trap000d » Mon Aug 24, 2026 3:58 am

Hi,

I've just given a try to mainline (7.2) kernel on my Odroid-M1 (until today it was LTS 6.12).
So far all is good except NFS. My home Synology NAS only supports v4.0. However the new kernel refused to mount with 'vers=4.0'.

Indeed:
==
zcat config.gz | grep CONFIG_NFS_V4
CONFIG_NFS_V4=y

# CONFIG_NFS_V4_0 is not set <============ ?

CONFIG_NFS_V4_2=y
CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN="kernel.org"
# CONFIG_NFS_V4_1_MIGRATION is not set
CONFIG_NFS_V4_SECURITY_LABEL=y
# CONFIG_NFS_V4_2_READ_PLUS is not set
CONFIG_NFS_V4_2_SSC_HELPER=y
==

Although in mainline Arch kernel it's enabled.

Regards,
trap000d
 
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Re: Enable NFS v4.0 support in kernel

Postby graysky » Mon Aug 24, 2026 6:16 pm

Try 7.2-2 when it hits the repos.
graysky
Developer
 
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Re: Enable NFS v4.0 support in kernel

Postby trap000d » Mon Aug 24, 2026 11:49 pm

Yeah! All works.
Thanks a lot. I'm switching to mainline now.
trap000d
 
Posts: 14
Joined: Tue Aug 18, 2020 10:24 am

Re: Enable NFS v4.0 support in kernel

Postby graysky » Tue Aug 25, 2026 9:09 pm

Glad it's working for you.
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Posts: 1971
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