Re: Accessing odd last partition sector (was: [Linux-NTFS-Dev] mkntfs dirty volume marking)

[viro]

On Sat, Apr 10, 2004 at 10:29:37PM +0200, Andries Brouwer wrote:
> On Fri, Apr 09, 2004 at 01:38:51PM +0200, Szakacsits Szabolcs wrote:
> 
> > > TODO.ntfsprogs conatins the following TODO item under mkntfs:
> > >  - We don't know what the real last sector is, thus we mark the volume
> > > dirty and the subsequent chkdsk (which will happen on reboot into
> > > Windows automatically) recreates the backup boot sector if the Linux
> > > kernel lied to us about the number of sectors.
> 
> The ioctl BLKGETSIZE64 will tell you the size (in bytes) of a block device.

So will lseek() to SEEK_END, actually (both 2.4 and 2.6).
And yes, last sector _is_ accessible for dd(1) et.al.
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