Can't remove file

[sprock]

Hello,

During a package upgrade yesterday there were some messages on the console about bad inodes. I ran fsck with journal and the errors persisted. Then I ran fsck without journal and responded 'y' when prompted to take action. Continuing the upgrade today I am blocked because of a file that cannot be removed:

[1/1] Fetching mpich-4.2.3.pkg: 100%   12 MiB   3.2MB/s    00:04  
Checking integrity... done (0 conflicting)
[1/4] Installing hwloc2-2.11.2...
[1/4] Extracting hwloc2-2.11.2: 100%
pkg: Fail to rename /usr/local/bin/.pkgtemp.hwloc-annotate.W7tnZ4F00q86 -> /usr/local/bin/hwloc-annotate:Operation not permitted

When I attempt to remove the offending file manually, and responding 'y' I see:

sudo rm /usr/local/bin/hwloc-annotate           
override rw------- root/wheel sappnd,sunlnk,snapshot,nodump,offline,sparse for /usr/local/bin/hwloc-annotate? y
rm: /usr/local/bin/hwloc-annotate: Operation not permitted

I have not seen this before and have no idea how to proceed.

Any help will be greatly appreciated.

Thanks,
sprock

 

[cracauer@]

Anything in `dmesg`?

 

[sprock]

Nothing obvious, but I don't really know what I'm looking for.

 

[Kai Burghardt]

override rw------- root/wheel sappnd,sunlnk,snapshot,nodump,offline,sparse for /usr/local/bin/hwloc-annotate? y

The sunlnk flag means “system unlink(2) (forbidden)”. Even root is not permitted to remove such a file. Clear the flag with chflags(1):​

chflags nosunlink $_ # $_ expands to the previous command’s last argument

 

[sprock]

# chflags nosunlink hwloc-annotate
chflags: hwloc-annotate: Operation not supported