y
use the desktop vs laptop alternatingly and sync at each switchover,
but the potential problem only would come if I modify both (something
like having to do git merge, I guess).
Has anyone come across this situation and evolved any policies to handle it?
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Hello can you elaborate a bit on the workflow as to how you use svn for that?
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) like:
find . | while read f
do
[ -d "$f" ] && mkdir target/"$f" && touch target/"$f" -r "$f"
[ -f "$f" ] && cp -a --reflink "$f" target/ && rm "$f"
done
Again, what would happen to files wh
option so it seems the improvement is in-built.
That's nice to know!
Any idea when the next coreutils point release with this will be out?
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bout this... Do
they mount root using subvolid, or subvol name or such?
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r whatchamacallit) of the entire BtrFS-based contents
of the device(s) and hence cannot be deleted but only reset by a
mkfs.btrfs, but 5 is only the default subvol (mounted when the FS as a
whole is mounted without subvol spec) provided by mkfs.btrfs, and
subvol set-default can have another subvol mounted
tting the root subvol will not snapshot any subvols
under it.
So is there any way to undo a subvol delete?
[If no, then ordinary users should probably prefer regular directories
to subvols.]
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https://btrfs.wiki.kernel.org/index.php/FAQ#Is_btrfs_stable.3F still
reads experimental whereas the warning has been removed in the tools
recently IIUC. The FAQ item to be updated, no?
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N�r��yb�X��ǧv�^�){.n�+{�n�߲)w* jg��� �ݢj
here should be a ToS page or this requirement should not
be there...
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; revision).
As I said, there doesn't actually seem to be a --reflink command line option.
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On Sun, Aug 31, 2014 at 7:25 AM, Shriramana Sharma wrote:
> Hello. There seem to be lots of questions in various forums re the
> output of btrfs fi df -- especially w.r.t. the usage of the word
> "total". For example see https://community.oracle.com/thread/2459838
>
>
recursively in one mount AFAIK.
I'm not sure what you mean. I have a few subvols in my external HDD
which is entirely formatted as BtrFS and if I just mount the external
HDD /dev/sdc1 I am able to access all the subvols' contents as well.
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On Sun, Nov 30, 2014 at 9:23 AM, Shriramana Sharma wrote:
>
>
> Why should noCoW affect cp --reflink anyhow? I just created a 500 MiB
> file from /dev/urandom under a chattr +C-ed dir, and copied to another
> subvol using cp --reflink, and fi df still shows 500 MiB, not 1 GiB.
Loo
Attached patch.
On Sun, Nov 30, 2014 at 9:30 AM, Shriramana Sharma wrote:
> On Sun, Aug 31, 2014 at 7:25 AM, Shriramana Sharma wrote:
>> Hello. There seem to be lots of questions in various forums re the
>> output of btrfs fi df -- especially w.r.t. the usage of the word
>>
On Sun, Nov 30, 2014 at 5:29 PM, Hugo Mills wrote:
>
>In the data structures on disk, it's 5. The kernel aliases 0 to
> mean subvolid 5.
So why 5 and not just 0 which seems a logical choice? On top of this,
one needs to alias 0 to 5!
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On Sun, Nov 30, 2014 at 7:08 PM, Shriramana Sharma wrote:
>
> So why 5 and not just 0 which seems a logical choice? On top of this,
> one needs to alias 0 to 5!
Attached patch clarifying this in the documentation. (Should have done
this with the previous mail. Sorry for multi
snapshotted less often?
3) sent/received any differently?
Thanks.
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a.kernel.org/show_bug.cgi?id=89091.
As I requested there, I prefer for confirmation by default and -f to
force otherwise, rather than behaviour of rm which requires -i to ask
confirmation.
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ever file will be read only if the shell is interactive) would
work? Like in ~/.bashrc:
export BTRFS_SUBVOLUME_DELETE_CONFIRM=1
Ideas?
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d-write and vica-versa, or you can only specify read-only while
> creating them?
IIUC you can only specify RO while creating but you can always cheaply
create a RW snapshot of an RO one or an RO snapshot of an RW one...
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On Mon, Dec 1, 2014 at 6:24 AM, Chris Murphy wrote:
>> But isn't it just possible to move i.e. reparent a
>> subvol so I can move these two under another subvol and have that as
>> default?
>
> You can move subvolumes.
OK so I just found out that just mv test1/foo test2/ where test1,
test2 and fo
kernel 3.17.2 and btrfsprogs 3.17) requires me to enter the root
password before creating a subvol (or in fact running anything under
/sbin or /usr/sbin).
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From what I'm reading, thin metadata and nohole options were
introduced to make the FS more efficient. Does this mean that for
someone about to do mkfs.btrfs, it is actively recommended to use
these options?
Another pertinent question -- why aren't they default then?
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t refer to my layout.)
I am now reading a SuSECon 2013 presentation by Nyers and Schnell but
they are very generic about the recommendations.
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On Tue, Dec 2, 2014 at 6:26 PM, David Sterba wrote:
>
> Works for me without the root password on a Tumbleweed installation
> (without apparmor/selinux).
Are you then referring to a btrfs partition mounted with user_subvol_rm_allowed?
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N
sort of trash vs (real) delete mechanism?
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not any of the others. Is that a SuSE-specific
modification or upstream?
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7 gen 10 top level 5 path test1
ID 258 gen 10 top level 5 path test2
ID 259 gen 9 top level 258 path test2/foo
$ sudo mv test2/foo test1/
$ btr sub list .
ID 257 gen 10 top level 5 path test1
ID 258 gen 10 top level 5 path test2
ID 259 gen 9 top level 257 path test1/foo
$
So now what is the meaning
On Wed, Dec 3, 2014 at 2:43 AM, Austin S Hemmelgarn
wrote:
> Here's my approach to things:
Wow, thanks a lot people! I'm really benefiting from your experience here.
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rstood. Excellent illustration. So using snapper is
sorta like using the higher-level trash instead of lower-level rm, so
that even after we "delete", it's still available...
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h of
the filesystem (or a subvolume thereof?).
Some problem here?
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.
One should not need to run the additional (regular) df command to find
out that info, IMO.
Anyone have any objection to my submitting a bug requesting this
additional info to be printed?
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still running)
but I don't understand why these have to be created in the first
place? (I just used SuSE Tumbleweed's default mkfs.btrfs without any
-m or -d options.)
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On Thu, Dec 4, 2014 at 12:23 AM, David Sterba wrote:
> On Tue, Dec 02, 2014 at 08:45:10PM +0530, Shriramana Sharma wrote:
>> On Tue, Dec 2, 2014 at 6:26 PM, David Sterba wrote:
>> >
>> > Works for me without the root password on a Tumbleweed installation
>
saying:
Refusing to explicitly operate on system chunks.
Pass --force if you really want to do that.
So I did give --force. (Is it the same as -f?)
I hope that was OK?
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On Thu, Dec 4, 2014 at 11:47 PM, Robert White wrote:
>
> If those disappeared, or got stripped off onto other drives then not-amusing
> things would happen.
Well after doing btrfs bal start -mprofiles=single, the FS is
still working...
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s.
I guess I'll ask around on the openSUSE Forum...
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he password. No idea why this is the openSUSE default...)
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otted") size of all the directories and files on the disk.
So this means that btrfs fi df actually shows the real on-disk usage.
In this case, why do we hear people saying it's not possible to know
the actual on-disk usage and when a btrfs-formatted disk (or
partition) will go out of space?
ny other FS, I do think I'd not like my files to occupy
more than 90% or so since even then defrag would probably not work.
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superuser can't
really do anything active (whether creating or deleting) with */sbin
commands, but only querying (like ifconfig, btrfs subvol list etc). So
this is not really hybrid of anything it seems.
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;fd" command in the subject line is...
:-)
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here would be a different way to provide crash
resistance.
But since BTRFS doesn't have journaling, it seems that this suggestion
to disable COW on the image file to avoid defragmentation would only
make it vulnerable to data corruption.
Comments please? Thanks!
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pshot.
I tried this out, and sure enough, just because chattr +C was applied,
my change in the snapshot did not reflect in the original subvolume.
So nocow via chattr +C only means "don't do COW unless this file
exists in another snapshot", right?
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my use case?
Thanks!
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receive promises. If this reason is going to be
affected seriously, then I'll return to BTRFS a year hence as was
suggested elsewhere...
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FSs". But still given the volume of mails here I wanted to ask...
I'm sorry I realize I'm being a bit vague but I'm not sure how to
exactly express what I'm feeling about BTRFS right now...
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rwritten due to COW and atomic
operations, and I can always retry send/receive again. Is this
correct?
If yes, then I guess I can take the plunge but ensure I have daily
backups (which BTRFS itself should help me do easily).
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on Kubuntu, which provides mainline kernels till a
particular point but not beyond that.
Do people here always compile the latest kernel themselves just to get
the latest BTRFS stability fixes (and improvements, though as a
second priority)?
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To u
like
their review...
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On 8/17/14, Shriramana Sharma wrote:
> Hello. One more Q re generic BTRFS behaviour.
> https://btrfs.wiki.kernel.org/index.php/Main_Page specifically
> advertises BTRFS's "Space-efficient packing of small files".
Hello. I realized that while I got lots of interesting advi
alloc" or "allocated" (if the short form is felt unclear). It would
also help people understand the output of regular df on a btrfs system
since one can understand easier that pre-allocated space would count
as "used" space as it is not free!
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ts -- perhaps is it Alexandre's site?!
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