From owner-freebsd-fs@freebsd.org Sat Apr 28 07:46:39 2018 Return-Path: Delivered-To: freebsd-fs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 85ED1FC629C for ; Sat, 28 Apr 2018 07:46:39 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 1C9F27D110 for ; Sat, 28 Apr 2018 07:46:39 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id D4CFEFC629B; Sat, 28 Apr 2018 07:46:38 +0000 (UTC) Delivered-To: fs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 98BFEFC6299 for ; Sat, 28 Apr 2018 07:46:38 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 29E377D0EE for ; Sat, 28 Apr 2018 07:46:38 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id 491873988 for ; Sat, 28 Apr 2018 07:46:37 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id w3S7kbZ9079330 for ; Sat, 28 Apr 2018 07:46:37 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w3S7kbnK079329 for fs@FreeBSD.org; Sat, 28 Apr 2018 07:46:37 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: fs@FreeBSD.org Subject: [Bug 205154] newfs_msdos issue Date: Sat, 28 Apr 2018 07:46:36 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: bin X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: damjan.jov@gmail.com X-Bugzilla-Status: Closed X-Bugzilla-Resolution: Rejected X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: fs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 28 Apr 2018 07:46:39 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D205154 Damjan Jovanovic changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |damjan.jov@gmail.com --- Comment #4 from Damjan Jovanovic --- Both 80GiB and 150GiB files seem to work within FreeBSD CURRENT: # dd if=3D/dev/zero of=3D80G seek=3D$((80*1024*1024*1024-1)) count=3D1 bs= =3D1 # newfs_msdos -F 32 -O android -c 8 ./80G newfs_msdos: warning, ./80G is not a character device ./80G: 167445080 sectors in 20930635 FAT32 clusters (4096 bytes/cluster) BytesPerSec=3D512 SecPerClust=3D8 ResSectors=3D32 FATs=3D2 Media=3D0xf0 Sec= PerTrack=3D63 Heads=3D255 HiddenSecs=3D0 HugeSectors=3D167772160 FATsecs=3D163521 RootClu= ster=3D2 FSInfo=3D1 Backup=3D2 # file 80G 80G: DOS/MBR boot sector, code offset 0x58+2, OEM-ID "android ", sectors/cluster 8, sectors/track 63, heads 255, FAT (32 bit), sectors/FAT 163521, serial number 0x432c1018, unlabeled # fsck_msdosfs ./80G=20 ** ./80G ** Phase 1 - Read and Compare FATs ** Phase 2 - Check Cluster Chains ** Phase 3 - Checking Directories ** Phase 4 - Checking for Lost Files 1 files, 4030760 free (20930634 clusters) # mdconfig -a -f 80G md0 # mount -t msdosfs /dev/md0 /mnt/test (seems to work, can write and read a file) # dd if=3D/dev/zero of=3D150G seek=3D$((150*1024*1024*1024-1)) count=3D1 bs= =3D1 # newfs_msdos -F 32 -O android -c 8 ./150G=20 newfs_msdos: warning, ./150G is not a character device ./150G: 313959560 sectors in 39244945 FAT32 clusters (4096 bytes/cluster) BytesPerSec=3D512 SecPerClust=3D8 ResSectors=3D32 FATs=3D2 Media=3D0xf0 Sec= PerTrack=3D63 Heads=3D255 HiddenSecs=3D0 HugeSectors=3D314572800 FATsecs=3D306602 RootClu= ster=3D2 FSInfo=3D1 Backup=3D2 # file ./150G=20 ./150G: DOS/MBR boot sector, code offset 0x58+2, OEM-ID "android ", sectors/cluster 8, sectors/track 63, heads 255, FAT (32 bit), sectors/FAT 306602, serial number 0x3b941109, unlabeled # fsck_msdosfs ./150G ** ./150G ** Phase 1 - Read and Compare FATs ** Phase 2 - Check Cluster Chains ** Phase 3 - Checking Directories ** Phase 4 - Checking for Lost Files 1 files, 1790528 free (39244944 clusters) # mdconfig -a -f 150G=20 md0 # mount -t msdosfs /dev/md0 /mnt/test (seems to work, can write and read a file) Where didn't this storage work? In your Android device? Maybe forcing secto= rs per cluster to be 8 is an issue for other FAT32 implementations? When I lea= ve the "-c 8" out, sectors per cluster goes up to 64: # newfs_msdos -F 32 -O android ./150G=20 newfs_msdos: warning, ./150G is not a character device ./150G: 314495936 sectors in 4913999 FAT32 clusters (32768 bytes/cluster) BytesPerSec=3D512 SecPerClust=3D64 ResSectors=3D32 FATs=3D2 Media=3D0xf0 Se= cPerTrack=3D63 Heads=3D255 HiddenSecs=3D0 HugeSectors=3D314572800 FATsecs=3D38391 RootClus= ter=3D2 FSInfo=3D1 Backup=3D2 --=20 You are receiving this mail because: You are the assignee for the bug.=