these 5 derivations will be built: /nix/store/3iriyxl8mppvi8klpysfinhyaq86njjz-closure-info.drv /nix/store/gvnyrqw0wpq44zkyfldq53ikwl7qbj4i-efi-directory.drv /nix/store/7zvqchaxq03d8bzkynknbc25v11xjcsr-efi-image_eltorito.drv /nix/store/c404xh85hnr3pw9i4vq1mzrbmn8zd4wl-isolinux.cfg.drv /nix/store/26g7vvd5mxzfk9bcdprks6xbbd7jakzy-spaces-os.iso.drv building '/nix/store/c404xh85hnr3pw9i4vq1mzrbmn8zd4wl-isolinux.cfg.drv' building '/nix/store/3iriyxl8mppvi8klpysfinhyaq86njjz-closure-info.drv' building '/nix/store/gvnyrqw0wpq44zkyfldq53ikwl7qbj4i-efi-directory.drv' closure-info> structuredAttrs is enabled 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/8b3fld5invw0i1nbhimcwcmhcs73chbw-efi-directory/EFI/BOOT/refind_x64.efi' building '/nix/store/7zvqchaxq03d8bzkynknbc25v11xjcsr-efi-image_eltorito.drv' 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/k6drgwbgdns6g9355h32jb7jdlr0777v-efi-image_eltorito: 6 files, 719/1525 clusters building '/nix/store/26g7vvd5mxzfk9bcdprks6xbbd7jakzy-spaces-os.iso.drv' 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> 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 20296179.92 Kbytes (19820.49 Mbytes) spaces-os.iso> 63.63% of uncompressed filesystem size (31894980.91 Kbytes) spaces-os.iso> Inode table size 5892285 bytes (5754.18 Kbytes) spaces-os.iso> 22.23% of uncompressed inode table size (26509016 bytes) spaces-os.iso> Directory table size 6727062 bytes (6569.40 Kbytes) spaces-os.iso> 35.48% of uncompressed directory table size (18961529 bytes) spaces-os.iso> Number of duplicate files found 104870 spaces-os.iso> Number of inodes 677465 spaces-os.iso> Number of files 444292 spaces-os.iso> Number of fragments 5498 spaces-os.iso> Number of symbolic links 86961 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 146212 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/jn41zjyvh5inf70aiwijy20w99rfn0sk-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, 1368g 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 2535/255/63 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 : 0.19% done spaces-os.iso> xorriso : UPDATE : 2.59% done spaces-os.iso> xorriso : UPDATE : 4.64% done, estimate finish Tue Aug 04 18:38:11 2026 spaces-os.iso> xorriso : UPDATE : 6.68% done, estimate finish Tue Aug 04 18:38:10 2026 spaces-os.iso> xorriso : UPDATE : 8.62% done, estimate finish Tue Aug 04 18:38:10 2026 spaces-os.iso> xorriso : UPDATE : 10.57% done, estimate finish Tue Aug 04 18:38:10 2026 spaces-os.iso> xorriso : UPDATE : 12.68% done, estimate finish Tue Aug 04 18:38:10 2026 spaces-os.iso> xorriso : UPDATE : 14.67% done, estimate finish Tue Aug 04 18:38:10 2026 spaces-os.iso> xorriso : UPDATE : 17.05% done, estimate finish Tue Aug 04 18:38:08 2026 spaces-os.iso> xorriso : UPDATE : 19.54% done, estimate finish Tue Aug 04 18:38:07 2026 spaces-os.iso> xorriso : UPDATE : 21.82% done, estimate finish Tue Aug 04 18:38:07 2026 spaces-os.iso> xorriso : UPDATE : 24.44% done, estimate finish Tue Aug 04 18:38:06 2026 spaces-os.iso> xorriso : UPDATE : 26.63% done, estimate finish Tue Aug 04 18:38:04 2026 spaces-os.iso> xorriso : UPDATE : 28.54% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 30.79% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 32.91% done, estimate finish Tue Aug 04 18:38:04 2026 spaces-os.iso> xorriso : UPDATE : 35.15% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 37.07% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 39.23% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 41.11% done, estimate finish Tue Aug 04 18:38:06 2026 spaces-os.iso> xorriso : UPDATE : 43.46% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 45.55% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 47.70% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 49.70% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 51.70% done, estimate finish Tue Aug 04 18:38:06 2026 spaces-os.iso> xorriso : UPDATE : 53.98% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 56.19% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 58.25% done, estimate finish Tue Aug 04 18:38:06 2026 spaces-os.iso> xorriso : UPDATE : 60.64% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 62.76% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 64.91% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 67.18% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 69.51% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 71.72% done, estimate finish Tue Aug 04 18:38:04 2026 spaces-os.iso> xorriso : UPDATE : 73.82% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 76.05% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 78.13% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 80.33% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 82.10% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 84.28% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 86.36% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 88.70% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 90.95% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 93.39% done, estimate finish Tue Aug 04 18:38:05 2026 spaces-os.iso> xorriso : UPDATE : 95.80% done spaces-os.iso> xorriso : UPDATE : 98.07% done spaces-os.iso> ISO image produced: 10179851 sectors spaces-os.iso> Written to medium : 10179851 sectors at LBA 0 spaces-os.iso> Writing to 'stdio:/nix/store/jn41zjyvh5inf70aiwijy20w99rfn0sk-spaces-os.iso/iso/spaces-os.iso' completed successfully. spaces-os.iso>