Gentoo Archives: gentoo-user

From: Nganon <nganon+gentoo@×××××.com>
To: gentoo-user@l.g.o
Subject: [gentoo-user] How to build a time machine on Gentoo
Date: Mon, 16 Aug 2010 00:03:47
1 Hello all,
3 My first post on the list. I thought I would start with something that I
4 started
5 to think of as 'essential' after losing 90GB of data. Now I have two main
6 questions in mind: what to and how to back up on gentoo most efficiently.
8 1. Apart from users' home directories and the followings, what should be
9 backed
10 up on a gentoo machine?
11 /etc/portage/
12 /root
13 /var/lib/portage
14 ...?
16 2. Erm..okay, I am gonna say, what magic I want and then ask your way.
17 I first started making gzipped tar balls as follows:
19 tar czpf /media/backups/userA-`date +%Y.%m.%d`.tgz -X userA-excludelist /etc
21 But these can get huge especially for home dirs. I also want safe dvd
22 copies.
23 Though I can find enough space on the external drives, I don't trust them
24 any more. See above..sigh..(No I recovered about one third of it with
25 testdisk/photorec
26 which names them as file000001 file00002.. and half them are zero sized..
27 which
28 quite justifies my agony)
30 Here is what I wanna do. I want to have only one big backup for, say,
31 userA-2010.08.07.tgz and other small backup tars containing only the
32 files/folders that were modified since last update, 2010.08.07, as
33 userA-diff-2010.08.14.tgz, userA-diff-2010.08.21.tgz,
34 userA-diff-2010.08.28.tgz
35 etc. Now if I want to take the userA back to the future, 2010.08.21, I want
36 to
37 do it by first extracting the huge tar userA-2010.08.07.tgz and then the
38 tiny
39 backup userA-diff-2010-08-21.tgz.
41 But the thing is I don't know how to do this. I am hoping maybe you can tell
42 me
43 how to of it as well as a better way of doing backups.
45 By the way, since I want dvd backups as well, and I want to use +rw dvds so
46 I
47 can overwrite old backup after a while, what is best way of ensuring the
48 integrity and safety of them. Is it a good idea to use truecrypt containers?
49 Or
50 nothing tops signing and encrypting with gpg?
52 Thanks for any comment in advance.


Subject Author
Re: [gentoo-user] How to build a time machine on Gentoo Alex Schuster <wonko@×××××××××.org>
Re: [gentoo-user] How to build a time machine on Gentoo Marco <listworks@×××××.com>
Re: [gentoo-user] How to build a time machine on Gentoo "Maximilian Bräutigam" <max-braeu@×××.de>
Re: [gentoo-user] How to build a time machine on Gentoo Enrico Weigelt <weigelt@×××××.de>