[opensuse] using SNAPPER with EXT4 file-system
Hello List , - is it possible that , in the future , one will be able to use Snapper on ext4 file system , with the standard desktop kernel [ without the need to use a special kernel for ext4 users to benefit from Snapper] ? ............ thanks regards -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 12/07/2014 03:53 PM, ellanios82 wrote:
Hello List ,
- is it possible that , in the future , one will be able to use Snapper on ext4 file system , with the standard desktop kernel
[ without the need to use a special kernel for ext4 users to benefit from Snapper] ?
As far as I know, the special kernel to do COW-like things is required. How ever you might look at "LVM snapshots with thin-provisioning", which would be applicable to any FS running in a LVM LV. At https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/htm... It says <quote> a separate thinly provisioned logical volume with a supported file system on top of it, </quote> The issue seems to be _"... With a supported file"_ I think they mean XFS. Of course you could just use the snapshot capability of LVM. What it gets back to is this: What are you trying to achieve? Is this the 'roll-back' of change using COW technique' or is this just a way of making snapshots as disk-to-disk-to <external media> backups? -- /"\ \ / ASCII Ribbon Campaign X Against HTML Mail / \ -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 12/08/2014 12:29 AM, Anton Aylward wrote:
On 12/07/2014 03:53 PM, ellanios82 wrote:
Hello List ,
- is it possible that , in the future , one will be able to use Snapper on ext4 file system , with the standard desktop kernel
[ without the need to use a special kernel for ext4 users to benefit from Snapper] ?
What it gets back to is this: What are you trying to achieve? ...............
- as a single-PC desktop user of Tumbleweed , it would be nice to feel the security in the event that a Tumbleweed "dup" causes problem , that one could use Snapper to revert to safe Original pre-dup state . ......... thanks regards -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 12/07/2014 06:09 PM, ellanios82 wrote:
On 12/08/2014 12:29 AM, Anton Aylward wrote:
What it gets back to is this: What are you trying to achieve? ...............
- as a single-PC desktop user of Tumbleweed , it would be nice to feel the security in the event that a Tumbleweed "dup" causes problem , that one could use Snapper to revert to safe Original pre-dup state .
Is there a reason you can't use BtrFS or XFS? -- /"\ \ / ASCII Ribbon Campaign X Against HTML Mail / \ -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 12/08/2014 03:19 AM, Anton Aylward wrote:
On 12/07/2014 06:09 PM, ellanios82 wrote:
On 12/08/2014 12:29 AM, Anton Aylward wrote:
What it gets back to is this: What are you trying to achieve? ...............
- as a single-PC desktop user of Tumbleweed , it would be nice to feel the security in the event that a Tumbleweed "dup" causes problem , that one could use Snapper to revert to safe Original pre-dup state . Is there a reason you can't use BtrFS or XFS?
- what please is the safest method to change from ext4 to BtrFS ? ............. thanks regards -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 12/08/2014 03:19 AM, Anton Aylward wrote:
On 12/07/2014 06:09 PM, ellanios82 wrote:
On 12/08/2014 12:29 AM, Anton Aylward wrote:
What it gets back to is this: What are you trying to achieve? ...............
- as a single-PC desktop user of Tumbleweed , it would be nice to feel the security in the event that a Tumbleweed "dup" causes problem , that one could use Snapper to revert to safe Original pre-dup state . Is there a reason you can't use BtrFS or XFS?
- what please is the safest method to change from ext4 to BtrFS ? ............. - and : does this mean that one needs to re-format to BtrFS all Back-Up media ? or, does the act of rsyncing to backup media also change the file-system of the backup media to BtrFS ? .......... thanks regards -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On Mon, Dec 8, 2014 at 12:37 PM, ellanios82 <ellanios82@gmail.com> wrote:
On 12/08/2014 03:19 AM, Anton Aylward wrote:
On 12/07/2014 06:09 PM, ellanios82 wrote:
On 12/08/2014 12:29 AM, Anton Aylward wrote:
What it gets back to is this: What are you trying to achieve?
...............
- as a single-PC desktop user of Tumbleweed , it would be nice to feel the security in the event that a Tumbleweed "dup" causes problem , that one could use Snapper to revert to safe Original pre-dup state .
Is there a reason you can't use BtrFS or XFS?
________________
- what please is the safest method to change from ext4 to BtrFS ?
.............
- and : does this mean that one needs to re-format to BtrFS all Back-Up media ?
https://btrfs.wiki.kernel.org/index.php/Conversion_from_Ext3
or,
does the act of rsyncing to backup media also change the file-system of the backup media to BtrFS ?
..........
thanks regards
-- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
-- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 12/08/2014 11:38 AM, Andrei Borzenkov wrote:
On Mon, Dec 8, 2014 at 12:37 PM, ellanios82 <ellanios82@gmail.com> wrote:
On 12/08/2014 03:19 AM, Anton Aylward wrote:
On 12/07/2014 06:09 PM, ellanios82 wrote:
On 12/08/2014 12:29 AM, Anton Aylward wrote:
What it gets back to is this: What are you trying to achieve? ...............
- as a single-PC desktop user of Tumbleweed , it would be nice to feel the security in the event that a Tumbleweed "dup" causes problem , that one could use Snapper to revert to safe Original pre-dup state . Is there a reason you can't use BtrFS or XFS?
- what please is the safest method to change from ext4 to BtrFS ?
.............
- and : does this mean that one needs to re-format to BtrFS all Back-Up media ?
https://btrfs.wiki.kernel.org/index.php/Conversion_from_Ext3
................ - strike me pink : very high-powered ............ thanks -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 12/08/2014 04:46 AM, ellanios82 wrote:
- strike me pink
Interesting idiom. "Bubblegum pink"? "Barbie Pink"? "Pink Panther Pink"? "Eddie Cantor & Ethel Merman Pink"? What does it mean? -- /"\ \ / ASCII Ribbon Campaign X Against HTML Mail / \ -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 12/08/2014 03:27 PM, Anton Aylward wrote:
- strike me pink What does it mean? ..............
yes, yes : wiki: " Strike Me Pink is a 1936 American musical comedy film, starring Eddie Cantor and Ethel Merman, directed by Norman Taurog, and produced by Samuel Goldwyn. Cantor plays a nebbishy employee of an amusement park, forced to assert himself against a gang of slot-machine racketeers. The climax involves a wild chase over a roller coaster and in a hot-air balloon, filmed at The Pike in Long Beach, California. This was Eddie Cantor's sixth of six films for Goldwyn, all produced and released within seven years. The story derives from the novel Dreamland by the once-popular writer Clarence Budington Kelland, reworked as a 1933 stage musical comedy by Ray Henderson for Jimmy Durante." ............ but then came some Genie-in-the-bottle tale, that took things too literally, and did just that . . . sadly i do not remember details :( ............ regards -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 08/12/14 14:45, ellanios82 wrote:
On 12/08/2014 03:27 PM, Anton Aylward wrote:
- strike me pink What does it mean? ..............
yes, yes :
wiki:
" Strike Me Pink is a 1936 American musical comedy film, starring Eddie Cantor and Ethel Merman, directed by Norman Taurog, and produced by Samuel Goldwyn.
Cantor plays a nebbishy employee of an amusement park, forced to assert himself against a gang of slot-machine racketeers. The climax involves a wild chase over a roller coaster and in a hot-air balloon, filmed at The Pike in Long Beach, California.
This was Eddie Cantor's sixth of six films for Goldwyn, all produced and released within seven years. The story derives from the novel Dreamland by the once-popular writer Clarence Budington Kelland, reworked as a 1933 stage musical comedy by Ray Henderson for Jimmy Durante."
............
but then came some Genie-in-the-bottle tale, that took things too literally, and did just that . . . sadly i do not remember details :(
............
regards
Grew up in the 50's in UK. "Strike Me Pink" was one of many colloquialisms in common use a bit like "I'll go to the foot of our stairs" Best translation I can think of might be "I am surprised by what you say" but I "did not know that" -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 12/08/2014 04:37 AM, ellanios82 wrote:
On 12/08/2014 03:19 AM, Anton Aylward wrote:
On 12/07/2014 06:09 PM, ellanios82 wrote:
On 12/08/2014 12:29 AM, Anton Aylward wrote:
What it gets back to is this: What are you trying to achieve? ...............
- as a single-PC desktop user of Tumbleweed , it would be nice to feel the security in the event that a Tumbleweed "dup" causes problem , that one could use Snapper to revert to safe Original pre-dup state . Is there a reason you can't use BtrFS or XFS?
- what please is the safest method to change from ext4 to BtrFS ?
I did this once and it went OK. There's a utility to do it. I don't recall the name. The old extFS is saved. It is accessible as subvolume.
.............
- and : does this mean that one needs to re-format to BtrFS all Back-Up media ?
or,
does the act of rsyncing to backup media also change the file-system of the backup media to BtrFS ?
rsync copies files. Its not concerned with file sysem type. If the destination media FS is a XXXXX-Fs then that's what you get. If the remote machine happens to be a IBM Z-series running MVS then what FS do you expect ? Its like asking "what happens if you tar a set of files on a ext2FS ... Will untaring mean that the FS you untar onto becomes ext2?" Its about files, not the raw FS. -- /"\ \ / ASCII Ribbon Campaign X Against HTML Mail / \ -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 12/08/2014 03:23 PM, Anton Aylward wrote:
Its like asking "what happens if you tar a set of files on a ext2FS ... Will untaring mean that the FS you untar onto becomes ext2?"
Its about files, not the raw FS. ...................
thank you . . . thank you regards -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 2014-12-08 10:37, ellanios82 wrote:
- and : does this mean that one needs to re-format to BtrFS all Back-Up media ?
as far as I know, snapper only works on a single filesystem. It can not store "photos" on another disk or partition. You can, however, make a snapshot of the current state in the running btrfs, which is fast, then copy over that snapshot to another drive for safe keeping, which is slow. Once made and verified, the original can be removed, or removed sometime later. -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar)
On 2014-12-08 02:19, Anton Aylward wrote:
Is there a reason you can't use BtrFS or XFS?
Does snapper work already with XFS? I recall there was work on this, maybe I asked before, but I simply forgot. (Sigh... I hate influenza. Or pharyngitis. Or whatever it is. Uncomfortable, and dumbs one down.) -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" at Telcontar)
On December 8, 2014 10:38:41 PM EST, "Carlos E. R." <robin.listas@telefonica.net> wrote:
On 2014-12-08 02:19, Anton Aylward wrote:
Is there a reason you can't use BtrFS or XFS?
Does snapper work already with XFS? I recall there was work on this, maybe I asked before, but I simply forgot.
(Sigh... I hate influenza. Or pharyngitis. Or whatever it is. Uncomfortable, and dumbs one down.)
Time for another grammar question. From: http://snapper.io/overview.html "Works with btrfs, ext4 and thin-provisioned". I find the obvious interpretation hard to believe so how about: Works with [btrfs], [ext4 and thin-provisioned LVM volumes] Nothing about its there, but I don't know why not. Greg -- Sent from my Android phone with K-9 Mail. Please excuse my brevity. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
participants (6)
-
Andrei Borzenkov -
Anton Aylward -
Carlos E. R. -
ellanios82 -
Greg Freemyer -
michael norman