Hi, Just doing some tests on aarch64 with 64K page size. Man page of mke2fs only mentions 3 valid block size: 1k, 2k, 4k. But in real world, we can pass 64K as block size for it without any problem: $mke2fs -F -t ext3 -b 65536 /dev/loop1 Warning: blocksize 65536 not usable on most systems. mke2fs 1.45.2 (27-May-2019) /dev/loop1 contains a btrfs file system Discarding device blocks: done Creating filesystem with 81920 64k blocks and 81920 inodes Filesystem UUID: 311bb224-6d2d-44a7-9790-92c4878d6549 [...] It's great to see mke2fs accepts 64K as nodesize, which allows btrfs-convert to work. (If blocksize is default to 4K or doesn't accept 64K page size, btrfs-convert can work but can't be mounted on system with 64K page size) Shouldn't the man page mention all valid values? Thanks, Qu
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