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 584557.04 Kbytes (570.86 Mbytes) 35.69% of uncompressed filesystem size (1637847.32 Kbytes) Inode table size 1167071 bytes (1139.72 Kbytes) 20.72% of uncompressed inode table size (5632293 bytes) Directory table size 1474693 bytes (1440.13 Kbytes) 40.27% of uncompressed directory table size (3661912 bytes) Number of duplicate files found 4953 Number of inodes 149015 Number of files 88478 Number of fragments 1005 Number of symbolic links 14665 Number of device nodes 0 Number of fifo nodes 0 Number of socket nodes 0 Number of directories 45872 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/qaqgjgz0w99hz4x4rjx0lp6z4wqc9lsd-nixos-26.05.20260920.6d663c0-aarch64-linux.iso/iso/nixos-26.05.20260920.6d663c0-aarch64-linux.iso' Media current: stdio file, overwriteable Media status : is blank Media summary: 0 sessions, 0 data blocks, 0 data, 1519g 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 : 17.76% done ISO image produced: 340192 sectors Written to medium : 340192 sectors at LBA 0 Writing to 'stdio:/nix/store/qaqgjgz0w99hz4x4rjx0lp6z4wqc9lsd-nixos-26.05.20260920.6d663c0-aarch64-linux.iso/iso/nixos-26.05.20260920.6d663c0-aarch64-linux.iso' completed successfully.