Mailinglist Archive: opensuse-bugs (4065 mails)

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[Bug 667514] fdisk tries to start at cylinder 2048

https://bugzilla.novell.com/show_bug.cgi?id=667514

https://bugzilla.novell.com/show_bug.cgi?id=667514#c10


Bernhard Wiedemann <bwiedemann@xxxxxxxxxx> changed:

What |Removed |Added
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CC| |bwiedemann@xxxxxxxxxx

--- Comment #10 from Bernhard Wiedemann <bwiedemann@xxxxxxxxxx> 2011-01-29
17:45:11 CET ---
Sid, you need to be aware, that your 160GB HDD does not have 150 GiBibytes.
only 149.01 as you can calculate with
160000000000/1024/1024/1024

It is intentional to start partitions at sector 2048 by default. While this
wastes 1MB of space, this will work better with SSDs and modern 3TB HDDs with
sectors of 4kB.

However, explicitly giving a 63 as starting sector results in
"Value out of range." which could be considered a bug.
People want to use fdisk to partition small USB-sticks or disk-images for VMs,
where wasting 1MB might not be wanted.

The other thing is that fdisk recently changed the default unit from cylinders
to sectors, so where old fdisk showed a "1" , there would today be a "63".

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