Ubuntu 12.04 won't install due to odd partitioning

[D. Hugh Redelmeier]

| From: charles chris <cccharlz-Re5JQEeQqe8AvxtiuMwx3w at public.gmane.org>

Please don't top-post.  And trim what you quote to what you refer to.
That takes more work for the poster but it makes the posting clearer
and you are writing for a number of people so making it easier for
the reader is a politeness.

| I believe in KISS
| What you are doing is the complete opposite to this philosophy.

How does that relate to the posting you quote?

| Personally, I deploy images onto free space.

Sure, but in my case
(1) there is no free space
(2) the installer recognize no existing partitions so I could not make
    freespace without wiping everything that was already there
So I don't see how it applies.

| On Wed, May 16, 2012 at 2:48 PM, Lennart Sorensen <
| lsorense-1wCw9BSqJbv44Nm34jS7GywD8/FfD2ys at public.gmane.org> wrote:
| 
| > On Wed, May 16, 2012 at 02:21:28PM -0400, D. Hugh Redelmeier wrote:
| > > I don't think so.  The last (1024-byte) block in sda7 is 8195072:
| > >
| > >     root at redact:~# dd if=/dev/sda7 skip=8195071 of=/dev/null bs=1024
| > >     1+0 records in
| > >     1+0 records out
| > >     1024 bytes (1.0 kB) copied, 9.192e-05 s, 11.1 MB/s
| > >     root at redact:~#
| > >
| > > dumpe2fs says that there are 2048768 blocks in the filesystem.  I
| > > presume that those are 4k blocks so that is the same as 8195072 1k
| > > blocks.  Thus (not surprisingly) the filesystem is occupying the whole
| > > partition.
| > >
| > > This fantasy of cylinders is past being funny.  For example, using
| > > 255*63 guarantees that the second partition will not be aligned on a
| > > 1024-byte boundary.  Very inconvenient for new disk drives that only
| > > fake having 512-byte sectors.
| > >
| > > The GCD of the last two partitions' sector counts 4 so they don't seem
| > > to have been allocated on the basis of some identical notional
| > > cylinder size.  But I don't know if that is meaningful -- perhaps some
| > > overhead sectors are not counted.
| >
| > No modern OS uses cylinder allignment.  Every OS these days uses 1MB
| > allignment, cylinders be damned.
| >
| > --
| > Len Sorensen
| > --
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| 
| 
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