Hi! I resolved the problem by copying gnu/store/cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31 from https://alpha.gnu.org/gnu/guix/guix-binary-1.2.0rc2.aarch64-linux.tar.xz into gnu/store on the NFS server. The system is running again.
Now I retried my commands and I am able to reproduce the problem: stefan@guix ~/development/guix$ /home/stefan/development/guix/pre-inst-env guix build -L /home/stefan/guix u-boot-rpi-3 accepted connection from pid 241, user stefan 12,0 MB will be downloaded: /gnu/store/ldg4jqfan2vp01lm255zz7zrb4vllixp-libxau-1.0.9 /gnu/store/m1r4jwmc56q44x31xcnvg1hcijf0lq88-libxcb-1.14 /gnu/store/8b75zmsyxc5qghfrxhyqi6g23bq993b1-libbsd-0.10.0 /gnu/store/cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31 /gnu/store/z7hanmdmdalqh1v0y7z8ilinfhyfh91d-glibc-2.31-static /gnu/store/pcsl88vd66k62sk1g4wcc9i985xn369m-libxdmcp-1.1.3 /gnu/store/785ldh00ix897pamyg5p6fpjls6ddwzz-libx11-1.6.A-doc /gnu/store/x10mk7ri4ny013km57d3h5093270r7pg-libx11-1.6.A guix build: error: cannot unlink `/gnu/store/cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale/de/LC_MESSAGES': Directory not empty This is now the diff of a correct cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31 and the now broken one: # diff -r cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/ guix-system/gnu/store/cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31 Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/: etc Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/: include Only in guix-system/gnu/store/cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/lib/gconv: .nfs0000000003a20e490000231b Only in guix-system/gnu/store/cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/lib: .nfs0000000003a20e8800002314 Only in guix-system/gnu/store/cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/lib: .nfs0000000003a20e9300002316 Only in guix-system/gnu/store/cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/lib: .nfs0000000003a20e9700002311 Only in guix-system/gnu/store/cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/lib: .nfs0000000003a20e9a00002317 Only in guix-system/gnu/store/cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/lib: .nfs0000000003a20e9d00002315 Only in guix-system/gnu/store/cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/lib: .nfs0000000003a20eac00002319 Only in guix-system/gnu/store/cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/lib: .nfs0000000003a20eb300002318 Only in guix-system/gnu/store/cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/lib: .nfs0000000003a20eb800002313 Only in guix-system/gnu/store/cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/lib: .nfs0000000003a20ec100002312 Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/: libexec Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share: doc Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share: i18n Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share: info Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: be Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: ca Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale/de/LC_MESSAGES: @eaDir Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale/de/LC_MESSAGES: libc.mo Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: en_GB Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: eo Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: es Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: fi Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: fr Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: hu Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: ja Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: ko Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: lt Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: nb Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: pl Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: pt Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: pt_BR Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: rw Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: sk Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: sv Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: uk Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: vi Only in cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31/share/locale: zh_TW Indeed there are the hidden .nfs files leading to the unlink error. If I would try the same commands a second time, as before, then more files will be removed and my system will brake again. Why is guix trying to reinstall /gnu/store/cb88z63hyg1icd2kkahiink2p291mhr2-glibc-2.31? It is part of the running system already. Bye Stefan
