linux-kernel - Re: BTRFS partition usage...

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 12 Feb 2008 15:26:52 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	jengelh@...putergmbh.de
Cc:	chris.mason@...cle.com, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, btrfs-devel@....oracle.com
Subject: Re: BTRFS partition usage...

From: Jan Engelhardt <jengelh@...putergmbh.de>
Date: Tue, 12 Feb 2008 15:00:20 +0100 (CET)

> (Yes, I had xfs on sparc before, so it's not like you NEED the 
> whitespace at the start of a partition.)

You actully do unless you want to lose significant chunks of your disk
space.

The Sun disk label only allows you to specify the start of a partition
in cylinders, so if you want to use a filesystem like XFS you have to
start the partition on cylinder 1 which can be many blocks into the
disk.  That entire first cylinder is completely wasted.

What XFS does by putting the superblock at zero is simply does not
take these kinds of issues into consideration.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/