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Re: Problem with minimum partition sizes


From: Gareth Bult
Subject: Re: Problem with minimum partition sizes
Date: Fri, 04 Mar 2005 18:32:37 +0000

Well,

Apparently the absolute minimum for any dos related filesystem in gparted is 16Mb.

I'm happily using 8Mb.

So .. one wonders where this limitation comes from .. it appears not to be the filesystem (!)

Gareth.

On Fri, 2005-03-04 at 19:29 +0100, B.Hakvoort wrote:
>> That's what gparted does.. the min size for fat32 is 256MB (dosfstools
>> limit). In the case there are no min. sizes (e.g. ext2) gparted takes
>> the
>> cylindersize of the disk as min.size.
>
>
> Mmm, now I'm confused. I just formatted an 8Mb USB stick using
> mkdosfs .. then mounted in using;
> mount -t vfat -shortname=winnt /dev/sda1 /mnt
>
> It seems to work perfectly .. 256Mb limit ??????
>
Strange, didn't mkdosfs create some other kind of fat filesystem like
fat16/12/8 or whatever? (i never really understood fat* :) )
>
>> > At the moment it seems that the filesystems have to fit to the
>> > partitioning software, whereas the partitioning software should
>> actually
>> > fit around the filesystems ???
>>
>> You know.. in my dreams the harddisks should fit around the filesystems
>> as
>> wel.
>
>
> Well, you say;
>>In the case there are no min. sizes (e.g. ext2) gparted takes the
> cylindersize of the disk as min.size.
>
> How about saying a lower arbitrary size .. say 1.2Mb .. ???
>


> Gareth.
>
>
>
>
>> Bart
>>
>> >
>> > Gareth.
>> >
>> > On Fri, 2005-03-04 at 18:30 +0100, B.Hakvoort wrote:
>> >
>> >> It's not artificial since this the cylindersize is calculated from
>> the
>> >> CHS
>> >> information which in turn is read from the disk.
>> >>
>> >> Hope this makes it clear :)
>> >>
>> >> > Urm,
>> >> >
>> >> > You're imposing an artificial limitation on the software that
>> prevents
>> >> > it from being used.
>> >> > How does it make sense ?
>> >> >
>> >> > For embedded systems, partitions can easily be less than 8Mb , not
>> >> only
>> >> > do partitions of this size work without a problem, they are
>> *needed*
>> >> ..
>> >> >
>> >> > (!)
>> >> >
>> >> > Gareth.
>> >> >
>> >> > On Fri, 2005-03-04 at 18:18 +0100, B.Hakvoort wrote:
>> >> >
>> >> >> Hi,
>> >> >>
>> >> >> For ext2 gparted takes the size of one cylinder as the min size.
>> This
>> >> >> makes sense, since partitions are rounded to cylinderboundaries.
>> >> >>
>> >> >> Bart
>> >> >>
>> >> >> > Hi
>> >> >> >
>> >> >> > I'm using gparted 0.0.8 with associated libgparted 1.6.20.
>> (Gentoo)
>> >> >> >
>> >> >> > There appear to be artificial limits in partition sizes when
>> >> creating
>> >> >> > new partitions, different minimums per partition type.
>> >> >> >
>> >> >> > Whereas some partitions may have minimum sizes, I *need* to be
>> able
>> >> to
>> >> >> > create 4Mb ext2 partitions (which I can do quite happily using
>> >> fdisk)
>> >> >> ,
>> >> >> > yet the apparent minimum in gparted is set to 8Mb. (and it looks
>> >> like
>> >> >> > it's getting this from 'parted')
>> >> >> >
>> >> >> > Is there easy way of getting around this ?
>> >> >> >
>> >> >> > If not, any chance of some saner minimum size checking ?
>> >> >> >
>> >> >> > Thanks,
>> >> >> > Gareth.
>> >> >> > _______________________________________________
>> >> >> > Bug-parted mailing list
>> >> >> > address@hidden
>> >> >> > http://lists.gnu.org/mailman/listinfo/bug-parted
>> >> >> >
>> >> >>
>> >> >>
>> >> >
>> >>
>> >>
>> >
>>
>>
>



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