these 5 derivations will be built: /nix/store/0g9v2818g3i4xi9ri6cfx65lmbghr478-efi-directory.drv /nix/store/0fh9kimclai9r40jwgc695wv1zrw9wbv-efi-image_eltorito.drv /nix/store/aqq3ip7qkhbsldabj1wd2fv257wyhnlj-closure-info.drv /nix/store/qn12kilczhim30n4bl8zhbjamg7j6b0c-isolinux.cfg.drv /nix/store/8vfkihvjhr5a8f3c8kf5vak5k85d6zp0-spaces-os.iso.drv building '/nix/store/qn12kilczhim30n4bl8zhbjamg7j6b0c-isolinux.cfg.drv' building '/nix/store/aqq3ip7qkhbsldabj1wd2fv257wyhnlj-closure-info.drv' building '/nix/store/0g9v2818g3i4xi9ri6cfx65lmbghr478-efi-directory.drv' closure-info> tribuchet: building on gi-build-x86-01 isolinux.cfg> tribuchet: building on gi-build-x86-01 efi-directory> tribuchet: building on gi-build-x86-02 efi-directory> Building GRUB with modules: efi-directory> - fat efi-directory> - iso9660 efi-directory> - part_gpt efi-directory> - part_msdos efi-directory> - normal efi-directory> - boot efi-directory> - linux efi-directory> - configfile efi-directory> - loopback efi-directory> - chain efi-directory> - halt efi-directory> - efifwsetup efi-directory> - efi_gop efi-directory> - ls efi-directory> - search efi-directory> - search_label efi-directory> - search_fs_uuid efi-directory> - search_fs_file efi-directory> - echo efi-directory> - serial efi-directory> - gfxmenu efi-directory> - gfxterm efi-directory> - gfxterm_background efi-directory> - gfxterm_menu efi-directory> - test efi-directory> - loadenv efi-directory> - all_video efi-directory> - videoinfo efi-directory> - png efi-directory> Adding additional modules: efi-directory> - efi_uga efi-directory> '/nix/store/c6zqczb7nhr8754qqkpjchyvkxwnch71-refind-0.14.2/share/refind/refind_x64.efi' -> '/nix/store/42p3gblm3132c6hj0b5b8f454rmqvg7i-efi-directory/EFI/BOOT/refind_x64.efi' closure-info> structuredAttrs is enabled building '/nix/store/0fh9kimclai9r40jwgc695wv1zrw9wbv-efi-image_eltorito.drv' efi-image_eltorito> tribuchet: building on gi-build-x86-02 efi-image_eltorito> Usage size: 2097152 efi-image_eltorito> Image size: 3145728 efi-image_eltorito> mkfs.fat 4.2 (2021-01-31) efi-image_eltorito> Copying BOOTX64.EFI efi-image_eltorito> Copying grub.cfg efi-image_eltorito> Copying refind_x64.efi efi-image_eltorito> fsck.fat 4.2 (2021-01-31) efi-image_eltorito> Checking we can access the last sector of the filesystem efi-image_eltorito> Boot sector contents: efi-image_eltorito> System ID "mkfs.fat" efi-image_eltorito> Media byte 0xf8 (hard disk) efi-image_eltorito> 512 bytes per logical sector efi-image_eltorito> 2048 bytes per cluster efi-image_eltorito> 1 reserved sector efi-image_eltorito> First FAT starts at byte 512 (sector 1) efi-image_eltorito> 2 FATs, 12 bit entries efi-image_eltorito> 2560 bytes per FAT (= 5 sectors) efi-image_eltorito> Root directory starts at byte 5632 (sector 11) efi-image_eltorito> 512 root directory entries efi-image_eltorito> Data area starts at byte 22016 (sector 43) efi-image_eltorito> 1525 data clusters (3123200 bytes) efi-image_eltorito> 32 sectors/track, 2 heads efi-image_eltorito> 0 hidden sectors efi-image_eltorito> 6144 sectors total efi-image_eltorito> Checking for unused clusters. efi-image_eltorito> /nix/store/i2nldnh9fky5ha442f7752a1l499kbdd-efi-image_eltorito: 6 files, 719/1525 clusters building '/nix/store/8vfkihvjhr5a8f3c8kf5vak5k85d6zp0-spaces-os.iso.drv' spaces-os.iso> tribuchet: building on gi-build-x86-02 spaces-os.iso> structuredAttrs is enabled spaces-os.iso> Parallel mksquashfs: Using 32 processors spaces-os.iso> Creating 4.0 filesystem on nix-store.squashfs, block size 1048576. spaces-os.iso> [=========================================================|] 481257/481257 100% spaces-os.iso> spaces-os.iso> Exportable Squashfs 4.0 filesystem, zstd compressed, data block size 1048576 spaces-os.iso> compressed data, compressed metadata, compressed fragments, spaces-os.iso> compressed xattrs, compressed ids spaces-os.iso> duplicates are removed spaces-os.iso> Filesystem size 9022108.85 Kbytes (8810.65 Mbytes) spaces-os.iso> 44.71% of uncompressed filesystem size (20181382.29 Kbytes) spaces-os.iso> Inode table size 5890496 bytes (5752.44 Kbytes) spaces-os.iso> 22.22% of uncompressed inode table size (26507381 bytes) spaces-os.iso> Directory table size 6746158 bytes (6588.04 Kbytes) spaces-os.iso> 35.49% of uncompressed directory table size (19010064 bytes) spaces-os.iso> Number of duplicate files found 105246 spaces-os.iso> Number of inodes 678825 spaces-os.iso> Number of files 445380 spaces-os.iso> Number of fragments 5505 spaces-os.iso> Number of symbolic links 86958 spaces-os.iso> Number of device nodes 0 spaces-os.iso> Number of fifo nodes 0 spaces-os.iso> Number of socket nodes 0 spaces-os.iso> Number of directories 146487 spaces-os.iso> Number of hard-links 0 spaces-os.iso> Number of ids (unique uids + gids) 1 spaces-os.iso> Number of uids 1 spaces-os.iso> root (0) spaces-os.iso> Number of gids 1 spaces-os.iso> root (0) spaces-os.iso> xorriso 1.5.8.pl02 : RockRidge filesystem manipulator, libburnia project. spaces-os.iso> spaces-os.iso> xorriso : NOTE : Environment variable SOURCE_DATE_EPOCH encountered with value 315532800 spaces-os.iso> Drive current: -outdev 'stdio:/nix/store/yw1k5k9r13ag69jnmbjn704w0c64dqjg-spaces-os.iso/iso/spaces-os.iso' spaces-os.iso> Media current: stdio file, overwriteable spaces-os.iso> Media status : is blank spaces-os.iso> Media summary: 0 sessions, 0 data blocks, 0 data, 1688g free spaces-os.iso> xorriso : UPDATE : 194 files added in 1 seconds spaces-os.iso> Added 12 items from file 'pathlist' spaces-os.iso> xorriso : UPDATE : 194 files added in 1 seconds spaces-os.iso> xorriso : NOTE : Copying to System Area: 432 bytes from file '/nix/store/02ggy47qb66jdq894c5b9in1r5f4y0wr-syslinux-unstable-2019-02-07/share/syslinux/isohdpfx.bin' spaces-os.iso> libisofs: NOTE : Automatically adjusted MBR geometry to 1132/255/63 spaces-os.iso> libisofs: WARNING : Image size exceeds 1024 cylinders. Cannot align partition. spaces-os.iso> libisofs: WARNING : There are said to be BIOSes which will not boot this via MBR. spaces-os.iso> xorriso : UPDATE : 0.63% done spaces-os.iso> xorriso : UPDATE : 7.14% done spaces-os.iso> xorriso : UPDATE : 14.49% done, estimate finish Thu Aug 13 10:24:19 2026 spaces-os.iso> xorriso : UPDATE : 21.07% done, estimate finish Thu Aug 13 10:24:19 2026 spaces-os.iso> xorriso : UPDATE : 27.66% done, estimate finish Thu Aug 13 10:24:19 2026 spaces-os.iso> xorriso : UPDATE : 34.25% done, estimate finish Thu Aug 13 10:24:19 2026 spaces-os.iso> xorriso : UPDATE : 41.34% done, estimate finish Thu Aug 13 10:24:19 2026 spaces-os.iso> xorriso : UPDATE : 48.24% done, estimate finish Thu Aug 13 10:24:19 2026 spaces-os.iso> xorriso : UPDATE : 55.08% done, estimate finish Thu Aug 13 10:24:19 2026 spaces-os.iso> xorriso : UPDATE : 61.76% done, estimate finish Thu Aug 13 10:24:19 2026 spaces-os.iso> xorriso : UPDATE : 68.46% done, estimate finish Thu Aug 13 10:24:19 2026 spaces-os.iso> xorriso : UPDATE : 75.82% done, estimate finish Thu Aug 13 10:24:19 2026 spaces-os.iso> xorriso : UPDATE : 82.37% done, estimate finish Thu Aug 13 10:24:18 2026 spaces-os.iso> xorriso : UPDATE : 89.05% done spaces-os.iso> xorriso : UPDATE : 95.82% done spaces-os.iso> ISO image produced: 4542817 sectors spaces-os.iso> Written to medium : 4542817 sectors at LBA 0 spaces-os.iso> Writing to 'stdio:/nix/store/yw1k5k9r13ag69jnmbjn704w0c64dqjg-spaces-os.iso/iso/spaces-os.iso' completed successfully. spaces-os.iso> post-build step Upload to niks3: ok time=2026-08-13T10:26:07.268Z level=INFO msg="Uploading 1 paths to 127.0.0.1 (0 already cached)" time=2026-08-13T10:26:07.268Z level=INFO msg="Uploading yw1k5k9r13ag69jnmbjn704w0c64dqjg-spaces-os.iso (8.7GB)" time=2026-08-13T10:27:35.150Z level=INFO msg="Requesting additional part URLs" object_key=nar/1g5vyck5hinsvcsx7ysjzxiyrs7fa5i4j8rxxq359568wkrqmqs7.nar.zst current_part=101 requesting=100 time=2026-08-13T10:27:35.154Z level=INFO msg="Received additional part URLs" count=100 total_parts=200 time=2026-08-13T10:28:57.198Z level=INFO msg="Requesting additional part URLs" object_key=nar/1g5vyck5hinsvcsx7ysjzxiyrs7fa5i4j8rxxq359568wkrqmqs7.nar.zst current_part=201 requesting=100 time=2026-08-13T10:28:57.201Z level=INFO msg="Received additional part URLs" count=100 total_parts=300 time=2026-08-13T10:30:22.806Z level=INFO msg="Requesting additional part URLs" object_key=nar/1g5vyck5hinsvcsx7ysjzxiyrs7fa5i4j8rxxq359568wkrqmqs7.nar.zst current_part=301 requesting=100 time=2026-08-13T10:30:22.809Z level=INFO msg="Received additional part URLs" count=100 total_parts=400 time=2026-08-13T10:31:43.592Z level=INFO msg="Requesting additional part URLs" object_key=nar/1g5vyck5hinsvcsx7ysjzxiyrs7fa5i4j8rxxq359568wkrqmqs7.nar.zst current_part=401 requesting=100 time=2026-08-13T10:31:43.596Z level=INFO msg="Received additional part URLs" count=100 total_parts=500 time=2026-08-13T10:33:02.776Z level=INFO msg="Requesting additional part URLs" object_key=nar/1g5vyck5hinsvcsx7ysjzxiyrs7fa5i4j8rxxq359568wkrqmqs7.nar.zst current_part=501 requesting=100 time=2026-08-13T10:33:02.780Z level=INFO msg="Received additional part URLs" count=100 total_parts=600 time=2026-08-13T10:34:21.685Z level=INFO msg="Requesting additional part URLs" object_key=nar/1g5vyck5hinsvcsx7ysjzxiyrs7fa5i4j8rxxq359568wkrqmqs7.nar.zst current_part=601 requesting=100 time=2026-08-13T10:34:21.689Z level=INFO msg="Received additional part URLs" count=100 total_parts=700 time=2026-08-13T10:35:38.617Z level=INFO msg="Requesting additional part URLs" object_key=nar/1g5vyck5hinsvcsx7ysjzxiyrs7fa5i4j8rxxq359568wkrqmqs7.nar.zst current_part=701 requesting=100 time=2026-08-13T10:35:38.621Z level=INFO msg="Received additional part URLs" count=100 total_parts=800 time=2026-08-13T10:36:58.203Z level=INFO msg="Requesting additional part URLs" object_key=nar/1g5vyck5hinsvcsx7ysjzxiyrs7fa5i4j8rxxq359568wkrqmqs7.nar.zst current_part=801 requesting=100 time=2026-08-13T10:36:58.208Z level=INFO msg="Received additional part URLs" count=100 total_parts=900 time=2026-08-13T10:38:07.487Z level=INFO msg="Uploading 1 narinfos" time=2026-08-13T10:38:07.700Z level=INFO msg="Upload complete. (12m0.529s)"