Date: Sat, 3 May 2003 22:40:39 +0300 From: Ruslan Ermilov <ru@FreeBSD.org> To: Poul-Henning Kamp <phk@phk.freebsd.dk> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/release/scripts doFS.sh Message-ID: <20030503194039.GG97244@sunbay.com> In-Reply-To: <21868.1051990078@critter.freebsd.dk> References: <20030503192559.GE97244@sunbay.com> <21868.1051990078@critter.freebsd.dk>
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--iSeZnk6FyAS3EJ1y Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sat, May 03, 2003 at 09:27:58PM +0200, Poul-Henning Kamp wrote: > In message <20030503192559.GE97244@sunbay.com>, Ruslan Ermilov writes: > >> Log: > >> Use UFS1 for the floppies instead of UFS2 > >> > >Why? Does it save anything? Last time I tried, it did not. >=20 > UFS1 inodes are half the size of UFS2 inodes, so it may gain you > a bunch of sectors. >=20 I now see. I was about to suggest UFS1 for boot floppies, and thought I saw the difference, and even completed the email with the patch, but then tested it again and saw no difference in free space. I now know why, I even recall seeing a PR on the subject, something about UFS1, UFS2, and newfs(8): This is on an fd1440-labelled image: # newfs -O1 md0a /dev/md0a: 1.4MB (2880 sectors) block size 4096, fragment size 512 using 4 cylinder groups of 0.36MB, 91 blks, 192 inodes. super-block backups (for fsck -b #) at: 32, 760, 1488, 2216 # df /dev/md0a Filesystem 1K-blocks Used Avail Capacity Mounted on /dev/md0a 1279 0 1177 0% # newfs -O2 md0a /dev/md0a: 1.4MB (2880 sectors) block size 4096, fragment size 512 using 4 cylinder groups of 0.36MB, 91 blks, 192 inodes. super-block backups (for fsck -b #) at: 144, 872, 1600, 2328 # df /dev/md0a Filesystem 1K-blocks Used Avail Capacity Mounted on /dev/md0a 1127 0 1037 0% # newfs -O1 md0a /dev/md0a: 1.4MB (2880 sectors) block size 4096, fragment size 512 using 4 cylinder groups of 0.36MB, 91 blks, 192 inodes. super-block backups (for fsck -b #) at: 32, 760, 1488, 2216 # df /dev/md0a Filesystem 1K-blocks Used Avail Capacity Mounted on /dev/md0a 1127 0 1037 0% Cheers, --=20 Ruslan Ermilov Sysadmin and DBA, ru@sunbay.com Sunbay Software AG, ru@FreeBSD.org FreeBSD committer, +380.652.512.251 Simferopol, Ukraine http://www.FreeBSD.org The Power To Serve http://www.oracle.com Enabling The Information Age --iSeZnk6FyAS3EJ1y Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (FreeBSD) iD8DBQE+tBs3Ukv4P6juNwoRAi7jAJ9YiGdQ4gV4WchRZLnlxZVY/7De0wCfZBly yOpvUVlqr0Hx5SmyQMuUnKo= =iUAU -----END PGP SIGNATURE----- --iSeZnk6FyAS3EJ1y--
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