Date: Sat, 10 Aug 2019 10:31:39 +0200 From: Matthias Apitz <guru@unixarea.de> To: freebsd-questions@freebsd.org Subject: USB stick for msdosfs Message-ID: <20190810083139.GA3606@c720-r342378>
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Hello, I have a 1G (1 "marketing GB") USB stick and use normaly this procedure which I have stored in y small set of how-to docs: # gpart destroy -F da0 # gpart create -s mbr da0 # gpart add -t \!12 da0 # newfs_msdos -F32 /dev/da0s1 What does the '-t \!12' mean? And why in the case here newfs_msdos(8) is unwilling to format the partition: # gpart destroy -F da0 da0 destroyed # gpart create -s mbr da0 da0 created # gpart add -t \!12 da0 da0s1 added # newfs_msdos -F32 /dev/da0s1 newfs_msdos: 61408 clusters too few clusters for FAT32, need 65525 # gpart list da0 Geom name: da0 modified: false state: OK fwheads: 64 fwsectors: 32 last: 1966079 first: 32 entries: 4 scheme: MBR Providers: 1. Name: da0s1 Mediasize: 1006616576 (960M) Sectorsize: 512 Stripesize: 0 Stripeoffset: 16384 Mode: r0w0e0 efimedia: HD(1,MBR,00000000,0x20,0x1dffe0) rawtype: 12 length: 1006616576 offset: 16384 type: fat32lba index: 1 end: 1966079 start: 32 Consumers: 1. Name: da0 Mediasize: 1006632960 (960M) Sectorsize: 512 Mode: r0w0e0 It works with -F16: # newfs_msdos -F16 /dev/da0s1 /dev/da0s1: 1965504 sectors in 61422 FAT16 clusters (16384 bytes/cluster) BytesPerSec=512 SecPerClust=32 ResSectors=1 FATs=2 RootDirEnts=512 Media=0xf0 FATsecs=240 SecPerTrack=32 Heads=64 HiddenSecs=0 HugeSectors=1966048 Why not with -F32? Thanks matthias -- Matthias Apitz, ✉ guru@unixarea.de, http://www.unixarea.de/ +49-176-38902045 Public GnuPG key: http://www.unixarea.de/key.pub
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