structuredAttrs is enabled Parallel mksquashfs: Using 48 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 1419213.25 Kbytes (1385.95 Mbytes) 56.24% of uncompressed filesystem size (2523312.13 Kbytes) Inode table size 1281343 bytes (1251.31 Kbytes) 19.36% of uncompressed inode table size (6619982 bytes) Directory table size 1493031 bytes (1458.04 Kbytes) 35.26% of uncompressed directory table size (4234487 bytes) Number of duplicate files found 3832 Number of inodes 169144 Number of files 98747 Number of fragments 1358 Number of symbolic links 21461 Number of device nodes 0 Number of fifo nodes 0 Number of socket nodes 0 Number of directories 48936 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 1.5.8.pl02 : RockRidge filesystem manipulator, libburnia project. xorriso : NOTE : Environment variable SOURCE_DATE_EPOCH encountered with value 315532800 Drive current: -outdev 'stdio:/nix/store/0gbzapbwwzhyvinp7v4b93gb4857b5gj-nixos-minimal-26.11pre-git-x86_64-linux.iso/iso/nixos-minimal-26.11pre-git-x86_64-linux.iso' Media current: stdio file, overwriteable Media status : is blank Media summary: 0 sessions, 0 data blocks, 0 data, 1755g free xorriso : WARNING : -volid text does not comply to ISO 9660 / ECMA 119 rules xorriso : UPDATE : 194 files added in 1 seconds Added 12 items from file 'pathlist' xorriso : UPDATE : 194 files added in 1 seconds xorriso : NOTE : Copying to System Area: 432 bytes from file '/nix/store/sigmasisa3jwk1j7bmpbnrw30df06a6q-syslinux-6.04-pre2-unstable-2019-02-07/share/syslinux/isohdpfx.bin' libisofs: NOTE : Automatically adjusted MBR geometry to 1014/91/32 libisofs: NOTE : Aligned image size to cylinder size by 571 blocks xorriso : UPDATE : 5.13% done xorriso : UPDATE : 93.08% done ISO image produced: 738192 sectors Written to medium : 738192 sectors at LBA 0 Writing to 'stdio:/nix/store/0gbzapbwwzhyvinp7v4b93gb4857b5gj-nixos-minimal-26.11pre-git-x86_64-linux.iso/iso/nixos-minimal-26.11pre-git-x86_64-linux.iso' completed successfully.