Date: Sat, 10 Aug 2019 18:00:46 -0500 From: "Clay Daniels Jr." <clay.daniels.jr@gmail.com> To: MJ <mafsys1234@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: USB stick for msdosfs Message-ID: <CAGLDxTVOCOPJ0xX_ihCC=02NLjV%2B=eB2iBD8BrJ2AhOoeMLcuw@mail.gmail.com> In-Reply-To: <0ce32b01-8fd1-211b-5ef4-43ffa2b843cc@gmail.com> References: <20190810083139.GA3606@c720-r342378> <0ce32b01-8fd1-211b-5ef4-43ffa2b843cc@gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Good info there. Just remember that the "\" backslash character is an escape character. *fat16* A partition that contains a FAT16 filesystem. The scheme-specific type is "!6" for MBR. *fat32* A partition that contains a FAT32 filesystem. The scheme-specific type is "!11" for MBR. *fat32lba* A partition that contains a FAT32 (LBA) filesys- tem. The scheme-specific type is "!12" for MBR. On Sat, Aug 10, 2019 at 3:59 AM MJ <mafsys1234@gmail.com> wrote: > Hi, > The -t sets you partition type, the \!12 is the value. This, according > to gpart manual says it's a Fat32 LBA (whatever use that is). I think > it's a partition type used by Windows 95/98. > > The gpart man also lists a "plain" Fat32 with a type of !11, so try that > instead then newfs_msdos -F32 > > Why it's unwilling to format it? Perhaps it doesn't understand LBA > (Logical Block Addressing)? Frankly, LBA is useless for a tiny 1GB disk, > just use Fat32 (or even Fat16 given you've only got 1GB disk) > > > On 10/08/2019 6:31 pm, Matthias Apitz wrote: > > > > 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 > > > > > > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAGLDxTVOCOPJ0xX_ihCC=02NLjV%2B=eB2iBD8BrJ2AhOoeMLcuw>