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 1442996.87 Kbytes (1409.18 Mbytes) 55.60% of uncompressed filesystem size (2595115.47 Kbytes) Inode table size 1309258 bytes (1278.57 Kbytes) 19.31% of uncompressed inode table size (6781338 bytes) Directory table size 1534458 bytes (1498.49 Kbytes) 35.25% of uncompressed directory table size (4353158 bytes) Number of duplicate files found 4575 Number of inodes 173038 Number of files 101092 Number of fragments 1400 Number of symbolic links 22167 Number of device nodes 0 Number of fifo nodes 0 Number of socket nodes 0 Number of directories 49779 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/41dsh7w55amq1ah382sqmxfwqkqqhf8n-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, 1690g 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/jz1gx10jnh92pxa58ggksf18wdxbivnd-syslinux-6.04-pre2-unstable-2019-02-07/share/syslinux/isohdpfx.bin' libisofs: NOTE : Automatically adjusted MBR geometry to 1018/92/32 libisofs: NOTE : Aligned image size to cylinder size by 33 blocks xorriso : UPDATE : 4.68% done xorriso : UPDATE : 39.26% done ISO image produced: 749248 sectors Written to medium : 749248 sectors at LBA 0 Writing to 'stdio:/nix/store/41dsh7w55amq1ah382sqmxfwqkqqhf8n-nixos-minimal-26.11pre-git-x86_64-linux.iso/iso/nixos-minimal-26.11pre-git-x86_64-linux.iso' completed successfully.