On Tue, 15 Aug 2023 10:42:05 +0200 Guido Berhoerster <[email protected]> wrote: > [ 12.587974] overlayfs: failed to retrieve lower fileattr (sbin/init, > err=-6) > mv: can't rename '/root/sbin/init': No such device or address
The actual problem is that rename(2) fails with ENXIO as overlayfs for some reason fails to get the file attributes of the source file from the underlying NFS filesystem. This does not just happen for broken symlinks such as /root/sbin/init but any symlink on the lower filesystem and this does not happen on kernel 5.10 on bullseye. A workaround is to use cp -P and ln -sf to make a backup of the init symlink in client/initrd-bottom/55-initrd-bottom.sh -- Guido Berhoerster
