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user7719
n00b
n00b


Joined: 19 Feb 2021
Posts: 73

PostPosted: Tue Aug 27, 2024 2:50 pm    Post subject: NFS cp: preserving permissions Reply with quote

Hi,
I have a NFS export mounted on two Gentoo machines. Copying a file from the export one Machine 1 fails with the following:

Code:
cp -fpPRH "/mnt/buildsupport/downloads/imx-gpu-viv-6.4.3.p4.6-aarch64.bin" "."
cp: preserving permissions for ‘./imx-gpu-viv-6.4.3.p4.6-aarch64.bin’: Operation not supported


Machine 1:
Code:
Linux ben-xps-15-9530 6.6.41-gentoo-dist #1 SMP PREEMPT_DYNAMIC Fri Aug  9 19:14:27 BST 2024 x86_64 13th Gen Intel(R) Core(TM) i7-13700H GenuineIntel GNU/Linux

Code:
emerge --ask net-fs/nfs-utils -pv

These are the packages that would be merged, in order:

Calculating dependencies... done!
Dependency resolution took 1.36 s (backtrack: 0/20).

[ebuild   R    ] net-fs/nfs-utils-2.6.4-r11::gentoo  USE="libmount nfsv3 nfsv4 uuid -caps -junction -kerberos -ldap -sasl (-selinux) -tcpd" 0 KiB

Code:
192.168.123.4:/zroot/buildsupport/downloads on /mnt/buildsupport/downloads type nfs4 (rw,relatime,vers=4.2,rsize=131072,wsize=131072,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=192.168.123.183,local_lock=none,addr=192.168.123.4)



Machine 2:
Code:
Linux buildsever01 5.10.76-gentoo-r1 #14 SMP Tue Dec 12 11:06:01 GMT 2023 x86_64 AMD Ryzen 9 5950X 16-Core Processor AuthenticAMD GNU/Linux

Code:
emerge --ask net-fs/nfs-utils -pv
 * Last emerge --sync was 1y 5d 16h 47m 24s ago.

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild     U  ] dev-libs/libltdl-2.4.7-r1::gentoo [2.4.6::gentoo] USE="-static-libs" ABI_X86="(64) -32 (-x32)" 993 KiB
[ebuild     U  ] sys-devel/libtool-2.4.7-r1:2::gentoo [2.4.6-r6:2::gentoo] USE="-vanilla" 0 KiB
[ebuild     U  ] net-fs/nfs-utils-2.6.3-r2::gentoo [2.5.4-r2::gentoo] USE="libmount nfsidmap nfsv4 uuid -caps -junction -kerberos -ldap -nfsdcld -nfsv41 -sasl (-selinux) -tcpd (-ipv6%*)" 956 KiB


Code:
192.168.123.4:/zroot/buildsupport/downloads on /mnt/buildsupport/downloads type nfs4 (rw,relatime,vers=4.2,rsize=131072,wsize=131072,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=192.168.123.21,local_lock=none,addr=192.168.123.4)


What might be going on?
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eccerr0r
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Joined: 01 Jul 2004
Posts: 9846
Location: almost Mile High in the USA

PostPosted: Tue Aug 27, 2024 4:38 pm    Post subject: Reply with quote

Where is "." located, what file system is it, and does it support permissions?
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user7719
n00b
n00b


Joined: 19 Feb 2021
Posts: 73

PostPosted: Tue Aug 27, 2024 5:33 pm    Post subject: Reply with quote

eccerr0r wrote:
Where is "." located, what file system is it, and does it support permissions?


Its an ext4 partition on both Machine 1 and Machine 2.

After the cp command fails the file does exist and if I execute the following command it completes with no error.

Code:
cp -fpPRH "imx-gpu-viv-6.4.3.p4.6-aarch64.bin" "imx-gpu-viv-6.4.3.p4.6-aarch64.bin.2"
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