During updating on a Arch distro the process is indicating there are conflicting files

File conflict found nss (/usr/lib/p11-kit-trust.so), lib32-nss (/usr/lib32/p11-kit-trust.so): conflicting files

Searching the file system I did find these two files

[user@Arch ~]$ sudo find / -path /mnt -prune -o -name p11-kit-trust.so -exec file {} \;

/usr/lib32/pkcs11/p11-kit-trust.so: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), statically linked, BuildID[sha1]=c375005cabe8daef2a34a4b67fc2187285e6b3a0, stripped
/usr/lib32/p11-kit-trust.so: symbolic link to libnssckbi.so
/usr/lib/pkcs11/p11-kit-trust.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), statically linked, BuildID[sha1]=eb61c425c55ea05db04ce5bb103604861d3ea27d, stripped
/usr/lib/p11-kit-trust.so: symbolic link to libnssckbi.so

After a bit of google-fu, I found a pacman command to determine which package these belong to. The result of that command is

[user@Arch~]$ sudo pacman -Qo /usr/lib32/pkcs11/p11-kit-trust.so
/usr/lib32/pkcs11/p11-kit-trust.so is owned by lib32-p11-kit 0.23.20-4

[user@Arch ~]$ sudo pacman -Qo /usr/lib/pkcs11/p11-kit-trust.so
/usr/lib/pkcs11/p11-kit-trust.so is owned by libp11-kit 0.23.20-4

I have tried updating one at a time, but that doesn't help. I am not sure how to resolve this problem. Any suggestions or ideas? Thanks

1 Answer 1


Using and upgrading the Arch Linux implies you keep tracking of upstream sources news.

For this case in particular you find the correct info here.

  • 1
    No, I didn't know about this page before. I have only started using Arch about two weeks ago. I will bookmark this page and keep an eye on it. Thanks
    – lordhog
    Commented Apr 18, 2020 at 14:11
  • @lordhog, I highly recommend subscribing to the arch announcements mailing list. It's reserved for important news, or changes which require manual intervention (like the above). Never get caught by surprise again! Commented Apr 25, 2020 at 16:57
  • 2
    @J.M.Janzen, yes, I most certainly will. Also, during that particular update process it broke the nVidia drivers some how and the system wouldn't bring up the KDE login screen. It is a good thing I had another device to search. I had removed/reinstalled the nVidia drivers, was able to post this question, and found out about other consoles using the ctrl/alt and Fx keys to which I could remove/reinstall the nVidia drivers. Still so much to learn
    – lordhog
    Commented Apr 28, 2020 at 21:28

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