linux-kernel - Re: [ANNOUNCE] Btrfs v0.13

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Message-ID: <20080331224710.GC2362@ldl.fc.hp.com>
Date:	Mon, 31 Mar 2008 16:47:10 -0600
From:	Alex Chiang <achiang@...com>
To:	David Miller <davem@...emloft.net>
Cc:	chris.mason@...cle.com, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, btrfs-devel@....oracle.com
Subject: Re: [ANNOUNCE] Btrfs v0.13

* David Miller <davem@...emloft.net>:
> From: Alex Chiang <achiang@...com>
> Date: Mon, 31 Mar 2008 14:26:33 -0600
> 
> > I've gotten as far as successfully creating a btrfs filesystem
> > (at least that's what btrfsck tells me), but haven't been able to
> > mount it yet, probably because of the sector size issue.
> 
> You should be able to make a filesystem with a sector
> size >= PAGE_SIZE and it should work just fine.  Please
> give it a try.

So, using the patch from my last mail, I created a btrfs, but was
unable to mount it...

[root@...ola btrfs]# getconf PAGESIZE
16384

[root@...ola btrfs]# mkfs.btrfs -E sectorsize=16384 /dev/cciss/c2d1
found device 1 on /dev/cciss/c2d1
lowest devid now 1
found Btrfs on /dev/cciss/c2d1 with 1 devices
opening /dev/cciss/c2d1 devid 1 fd 5
alloc chunk size 8388608 from dev 1
alloc chunk size 8388608 from dev 1
fs created on /dev/cciss/c2d1 nodesize 16384 leafsize 16384
sectorsize 16384 bytes 73372631040

[root@...ola btrfs]# mount -t btrfs /dev/cciss/c2d1 /mnt/btrfs
mount: /dev/cciss/c2d1: can't read superblock

And from /var/log/messages:

Mar 31 16:50:23 canola kernel: btrfs: cciss/c2d1 checksum verify
failed on 16384 wanted A76CDD59 found 4A0E371 from_this_trans 0
Mar 31 16:50:23 canola kernel: btrfs: valid FS not found on cciss/c2d1
Mar 31 16:50:23 canola kernel: btrfs: open_ctree failed

Any hints?

/ac

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