> Hi Alexander,
>
> Please see a few of my comments inline.
>
> Alexander Eremin wrote:
> > On Fri, 2009-10-02 at 12:04 +0000, Alexander Eremin
> wrote:
> >
> >> Hi all,
> >> Just played with Bug 6361 - Calculation of Sparc
> boot archive doesn't
> >> count with dcfs compression.
> >>
> I just updated the bug with my understanding of the
> cause of the
> problem.
> >> If change overhead for sparc in
> bootroot_archive.py to ~1.062 I've got
> >> a 114mb boot_archive with 23mb free space.
> >> That's minimum, in other case I've got cpio errors
> in br-arch step
> >
> Please note that the code in root_archive.py is for
> calculating the size
> dynamically based on the bootroot content specified
> in the input manifest.
> That need to work for all image types.
> >> If I take usual root_archive script for DC
> /bootroot directory and add
> >> to it line:
> >> size=$(($size +
> >> 20480))
>
> >>
> >> before
> >>
>
> >> /usr/sbin/mkfile ${size}k "$TMR"
> >> ...
> >>
> >> I've got a 90mb boot_archive with 13mb free space.
> >> Looks like DC python scripts produces bigger size
> for boot_archive
> >> than usual root_archive cmd.
> >>
> >>
> > On my sparc for bootroot directory ('du' there give
> me 109mb but I know
> > that on zfs the disk usage is less than the sum of
> the file sizes)
> > bootroot_archive.py calculate boot_root_size as
> 109mb before
> > ti_create_target, tunefs and compression,
> > root_archive - 68mb before mkfile, lofiadm,newfs
> and compression
> > processes.
> > root_archive give me smaller miniroot.
> >
> du doesn't return accurate size on ZFS.
>
> http://opensolaris.org/os/community/zfs/faq/#whydusize
Yes, I know this
>
> Thanks,
>
> --Karen
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> scuss
At this moment I prefer root_archive calculation and compression methods for
sparc in br_arch DC stay. They yield to me the best result.
Cheers,
Alex
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