Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!ames!mailrus!tut.cis.ohio-state.edu!bloom-beacon!gatech!udel!rochester!kodak!pcid!gizzmo!Kdavid From: Kdavid@gizzmo.UUCP (David Solan) Newsgroups: comp.sys.att Subject: Re: some random thoughts on mkfs Message-ID: <177@gizzmo.UUCP> Date: 8 May 88 04:33:57 GMT References: <175@gizzmo.UUCP> Lines: 60 Keywords: mkfs floppy Summary: addendum ... Oooopps. Somehow the end of my "random thoughts on mkfs" got censored by USENET. Here they are again: Here is an example of what I mean. After you have initialized a floppy diskette to be 42 cylinders(tracks) and 10 physical sectors per track, doing an mkfs by itself on this floppy results in the following: mkfs /dev/fp021 ---- ---------- slice 1 bytes per logical block = 1024 total logical blocks = 415 total inodes = 96 gap (physical blocks) = 2 cylinder size (physical blocks) = 20 The "415" above means 830 "physical blocks", as far as mkfs is concerned. So, to get more inodes, do the following: mkfs /dev/fp021 830:144 2 20 ---- ---------- ------- - -- bytes per logical block = 1024 total logical blocks = 415 total inodes = 144 gap (physical blocks) = 2 cylinder size (physical blocks) = 20 In the first case above, a df -t command (on the mounted file system) results in: /mnt (/dev/fp021): 812 blocks 94 i-nodes total: 830 blocks 96 i-nodes And, in the second case, a df -t command gives: /mnt (/dev/fp021): 806 blocks 142 i-nodes total: 830 blocks 144 i-nodes Keep It Short and Simple. The 3.51 Utilities package has a detailed description of the mkfs command in the UNIX System V User's Manual, Volume 1 -- look it up!!! ("when all else fails, read the directions"). David Solan Objective Programming Incorporated Post Office Box 123 Norwalk, CT 06856 Voice: (203) 866-6900 attmail: dsolan USENET: gizzmo!kdavid -- :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: {codas,u1100a}-----\ David Solan rutgers!rochester!pcid!kodak!gizzmo!mark {lazlo,ethos,fthood}-----/