Re: backup snapshot

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Hi,

Thanks for your answers.


Le 07/08/2015 22:12, Michael Morgan a écrit :
> Btrfs root, snapper, and python-dnf-plugins-extras-snapper have been a > godsend for me in this regard. I also run snapper-timeline on my
/home > subvol which has saved me from frustration a few times already.
btrfs sounds good but I will need to wait for the next installation from
scratch as I run on ext4, on multiple partitions /boot (ext2), /etc,
/opt, etc.. And conversion from ext4 does not seem worth the risk, for
the moment.
> http://snapper.io/
> http://rpm-software-management.github.io/dnf-plugins-extras/snapper.html

The documentation says that snapper supports ext4 but only
experimentally, do
you have any feedback on the matter ?


Le 08/08/2015 02:52, Chris Murphy a écrit :
> The closest it comes is choosing Btrfs for installation (you can use
> something else for /home if you want). The root subvolume on Btrfs can
> then be snapshot before you do a dnf update, update the snapshot's
> copy of fstab, and if things go bad you can change the
> rootflags=subvol=<subvolname> boot parameter to that of the snapshot
> name. But this assumes some Btrfs knowledge, which at least is not
> nearly as esoteric and complicated like the rabbit hole that is LVM
> thin volume snapshots. But that's also an option if you're at least
> semi-comfortable with LVM.

I even saw there :

   
https://wiki.archlinux.org/index.php/Btrfs_-_Tips_and_tricks#Automatic_snapshots_on_each_boot

that one can configure automatic snapshots at boot which is not far from
what you propose.

I guess this is reproducible on Fedora and that would definitely be my
preference.


> Another option, which is still maturing and really intended now only
> as a platform for deploying containers, is Fedora Atomic (rpm-ostree).
> This is really where rollbacks are at, because updates are atomic, and
> it deals with all the gory bootloader details. The tea leaves suggests
> this is the direction for a future Workstation product that can do
> what you describe.

That, seems to be way over my head and what I want to achieve as I just
have one computer to manage.


Le 08/08/2015 04:58, Michael D. Setzer II a écrit :
> Not a snapshot, but there are various programs that can do a bare image of > the system and it works with Windows and Linux. They can be done at
the > partition level or the entire disk. > > I am the current
maintainer of the G4L project, and there is also GNU and > Clonezilla
that can do similar things. I actually went for redobackup :
http://redobackup.org/ It has a web access as it runs on ubuntu, that's
what convince me. So I will go for this for now, and I will update my
system to btrfs next time I install.
Le 08/08/2015 15:57, Heinz Diehl a écrit :
> rsync -avxHSAX /source/ /target 

Heinz.. Try to catch up please.. Sorry ! I couldn't resist.. :)

Seriously, I'm not sure that rsync, even executed with root privileges, will
have access to all files and will be able to copy the entire /dev/sd[n]
identically. Will it ?

Thanks again to all ! ;)

-- 
"One original thought is worth a thousand mindless quotings."
"Le vrai n'est pas plus sûr que le probable."
                                              Diogene Laerce





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