structuredAttrs is enabled Parallel mksquashfs: Using 80 processors Creating 4.0 filesystem on nix-store.squashfs, block size 1048576. Exportable Squashfs 4.0 filesystem, zstd compressed, data block size 1048576 compressed data, compressed metadata, compressed fragments, compressed xattrs, compressed ids duplicates are removed Filesystem size 565760.13 Kbytes (552.50 Mbytes) 36.20% of uncompressed filesystem size (1562755.98 Kbytes) Inode table size 1148170 bytes (1121.26 Kbytes) 20.57% of uncompressed inode table size (5583030 bytes) Directory table size 1457889 bytes (1423.72 Kbytes) 40.27% of uncompressed directory table size (3620330 bytes) Number of duplicate files found 4277 Number of inodes 147573 Number of files 87421 Number of fragments 975 Number of symbolic links 14522 Number of device nodes 0 Number of fifo nodes 0 Number of socket nodes 0 Number of directories 45630 Number of hard-links 0 Number of ids (unique uids + gids) 1 Number of uids 1 root (0) Number of gids 1 root (0) xorriso 1.5.6 : RockRidge filesystem manipulator, libburnia project. xorriso : NOTE : Environment variable SOURCE_DATE_EPOCH encountered with value 315532800 Drive current: -outdev 'stdio:/nix/store/qqdz5aanqrvwyfx35q3xp5zarq982ssm-nixos-26.05.20260806.445d861-aarch64-linux.iso/iso/nixos-26.05.20260806.445d861-aarch64-linux.iso' Media current: stdio file, overwriteable Media status : is blank Media summary: 0 sessions, 0 data blocks, 0 data, 1623g free xorriso : WARNING : -volid text does not comply to ISO 9660 / ECMA 119 rules xorriso : UPDATE : 56 files added in 1 seconds Added 8 items from file 'pathlist' xorriso : UPDATE : 56 files added in 1 seconds xorriso : UPDATE : 22.37% done ISO image produced: 330891 sectors Written to medium : 330891 sectors at LBA 0 Writing to 'stdio:/nix/store/qqdz5aanqrvwyfx35q3xp5zarq982ssm-nixos-26.05.20260806.445d861-aarch64-linux.iso/iso/nixos-26.05.20260806.445d861-aarch64-linux.iso' completed successfully.