On 2014-11-20 12:11, Hugo Mills wrote:
On Thu, Nov 20, 2014 at 11:57:50AM -0500, Ken D'Ambrosio wrote:
Hi! Trying to do a "btrfs send", and failing with:
root@khamul:~# btrfs send /biggie/BACKUP/ | btrfs receive /tmp/sdd1/
At subvol /biggie/BACKUP/
At subvol BACKUP
ERROR:
Hi! Trying to do a "btrfs send", and failing with:
root@khamul:~# btrfs send /biggie/BACKUP/ | btrfs receive /tmp/sdd1/
At subvol /biggie/BACKUP/
At subvol BACKUP
ERROR: rename o2046806-17126-0 -> volumes/ccdn-ch2-01 failed. No such
file or directory
Judging by disk capacity, it hits this abo
Hi. I know that several hardware RAID solutions have issues with disks
that spin down when idle; the time to spin back up -- usually on the
order of five seconds -- causes unhappy timeouts, etc. I was wondering
if that would be an issue with RAID a-la btrfs?
Thanks,
-Ken
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I know this question was asked, oh, a year ago, and the answer was
"No." But I'm wondering if anything's changed in the interim.
Specifically, shy of "dd", is there any way to back up the files and
metadata on a btrfs partition?
Thanks!
-Ken
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(Asking this question on this list kinda makes me wonder if there shouldn't be
a btrfs-users list where folks could ask questions just like this without
pestering developers...)
Anyway -- I had a root partition with a /snapshots directory, in which I placed
a bunch of snapshots. At one point, I g
Seems I've picked up a wireless regression, and randomly drop my WiFi
connection with more recent kernels. While I'd love to try to track down the
issue, the sporadic nature makes it difficult. But I don't want to revert to a
flat-out old kernel because of all the btrfs modifications. Is it poss
1) As of right now, btrfs's fsck is "done when it's done." So don't hold your
breath, I'm afraid.
2) What errors do you get on mount? It may be as simple as changing your fstab
entry such that fsck isn't attempted to be run. (Change the last column to
"0".)
-Ken
On Sat, 19 Nov 2011 14:01:4
On Fri, 11 Nov 2011 19:13:09 + Hugo Mills wrote
>I'd suggest reporting (on this mailing list) the panic message(s)
> you got, and how you got to them. I know there's been quite a few
> additional patches worked on since Chris pushed out the stack for
> -rc1, so it's quite plausible that y
On Thu, 10 Nov 2011 14:59:44 + Hugo Mills wrote
>Alternatively, if you want the top level to be simply a container
> for subvolumes (and to use a default subvolume to mount / ), then you
> could do the switch-over by making a snapshot of your current /,
> remounting with the snapshot as /
Hey, all. I did a "convert" on my ext-3 system, and now I've got a monolithic
btrfs volume. I'd like to break / and /home into subvolumes. /home is easy (I
think): I just create a subvolume, and move stuff into it, and mount it. Done.
But how do I do that for root? (Don't worry about the actu
> some of us make use of snapshot/clone, whether it's using btrfs or zfs :)
No, this is just flat my fault: it doesn't matter what backup method you use if
you do it wrong. (I actually have three snapshots of each of my two
partitions.)
> What do you mean don't let you do anything? Can you mount
So, I was trying to downgrade my Ubuntu last night, and, before doing anything
risky like that, I backed up my disk via dd to an image on an external disk.
The critical part here is that I'm afraid I did something truly stupid: I'm
afraid I did the dd... live. (I can't swear to this, and it does
Well, I hate to grasp for a flyswatter when a hammer might be better, but
what's /proc/sys/fs/file-nr show? The first number is your currently opened
files, the last one is your maximum files (as dictated by
/proc/sys/fs/file-max), and the middle one's allocated-but-unused file handles.
If it's s
Hi, all. I'd never done RAID on btrfs before, so bear with me if I'm missing
something obvious. I just created a RAIDed btrfs partition with
mkfs.btrfs -m raid10 -d raid10 -L bigguy /dev/sdb /dev/sdc
(I also did the same, but with RAID-1, getting the same results I'm about to
outline.) That's
Just wondering if/how one goes about getting the btrfs checksum of a given
file. Is there a way?
Thanks!
-Ken
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Hey, all. I'm just wondering if synchronous byte-level de-duplication is
something that's even on the stove, or if it's just in the nebulous,
"Yeah, maybe sometime" category?
Thanks!
-Ken
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Hey, all -- crfs (a network protocol that, I think, rides on top of btrfs)
seemed like something kind of cool, but the Oracle page was last updated
in '08. Is it truly dead, or just back-burnered?
Thanks!
-Ken
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On Fri, January 7, 2011 2:09 pm, Hugo Mills wrote:
> On Fri, Jan 07, 2011 at 08:01:47PM +0100, Tomasz Chmielewski wrote:
>
>> I got a "power cycle", after which I'm no longer able to mount btrfs
>> filesystem:
[...]
> The forthcoming[1] btrfsck tool should handle that particular
> error, I believe.
Hey, all. I'm dealing with a potentially flaky 3Ware controller. Got
seven 2 TB disks in a RAID-6. The BTRFS partition is a 9 TB partition.
I've had to do a couple hard shutdowns on the system, and now I'm getting
sporadic "Failed to read block groups" errors in dmesg:
r...@parsley:~# dmesg |
Hi, all. I was copying two 6-GB DVD images yesterday, and while
monitoring the copy progress, noticed that du would show a trend that
*generally* headed toward the final files' sizes, but on occasion would
hop backward, thusly:
r...@hal-9000:/shared/ISOs# while true; do du * ; sleep 10; echo;don
Hello, all. I'm thinking of rolling out a BackupPC server, and -- based
on the strength of the recent Phoronix benchmarks
(http://benchmarkreviews.com/index.php?option=com_content&task=view&id=11156&Itemid=23)
-- had been strongly considering btrfs. But I do seem to recall that
there was some sor
> Yes, Fedora is one of the releases that has officially supported it
> for a while now. Additionally an initrd hook for btrfs has just
> been implemented for Arch Linux, so you might see btrfs being an
> option for that in the next version of the installer :-)
I also believe that Ubuntu 10.10 is
Hey, all. I've tried repeatedly to get an 800 GB sparse file on a 1 TB
btrfs partition to work as an iSCSI target... and I can run fdisk on it
(and see the iSCSI disk just fine), but when I try to create a partition
and exit, it OOPSes every time. Ubuntu, kernel 2.6.31-13-generic is the
latest I'
Hi, all. While I'm anxious to try out btrfs on my
(personal/non-production) systems, I'm not anxious to have to
restore/reformat them on a regular basis. Has btrfs reached a point where
it doesn't, say, crash on disk full? The development timeline in the wiki
has lots of neat milestones, but no
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