[Rpm-maint] [rpm-software-management/rpm] rpm install failed with "cpio: utime failed - Resource temporarily unavailable" (#449)

[Ryan Wong]

You are right. 

This should be a NFS bug. But the situation is a little complex...
I test the standard NFS server: nfs-kernel-server. And it works just fine.
Then I traced the log of runqemu(yocto), it seems that yocto uses unfsd(unfs3) as NFS server for nfsroot.
I downloaded the unfs3 and run it on my PC, then the error occurred.

Finally I found if I use lutimes to modify the timestamp of a symlink file pointing to a none existent file, the error occurs. But if the symlink points to an existent file, there will be no error.

So I guess the unfs3 server somehow follows the symlink though the code is not. If I can't find a solution about unfs3, your work round will be the best choice.

Thanks.


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