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Titel: LVM
 Verfasst am: 28.06.2006, 01:05 Uhr
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Anmeldung: 24. Mai 2005
Beiträge: 354
Wohnort: Nashville
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Titel: RE: Backup and restore with rdiff-backup
Verfasst am: 28.06.2006, 15:19 Uhr
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Anmeldung: 08. Apr 2004
Beiträge: 431
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| You could use sbackup, it uses rdiff to catch daily (or weekly etc) changes in the chosen directories. |
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Titel: LVM HowTo
Verfasst am: 29.06.2006, 23:59 Uhr
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Anmeldung: 24. Mai 2005
Beiträge: 354
Wohnort: Nashville
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Titel: RE: LVM HowTo
Verfasst am: 30.06.2006, 03:14 Uhr
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Anmeldung: 21. Jan 2006
Beiträge: 185
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Titel: RE: LVM HowTo
Verfasst am: 30.06.2006, 04:19 Uhr
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Anmeldung: 13. Mai 2005
Beiträge: 732
Wohnort: Texas
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| well it is for local backups but I like grsync (also written for gnome) After the first backup it only updates new files or changed files. Makes things fast. |
_________________
Always acknowledge a fault. This will throw those in authority off their guard and give you an opportunity to commit more.
Mark Twain
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Titel:
Verfasst am: 03.07.2006, 22:11 Uhr
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Anmeldung: 07. Dez 2005
Beiträge: 369
Wohnort: Port Angeles, Wa. USA
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Now that I've got my printing restored, I need to do a backup. I've read the FAQ's, examples, other threads, etc & am still confused. My brain is 57 yrs. old, so I need a little help understanding.  Plus I don't want to screw up doing this.
/media/hda5 is my main system & I want to create a backup to /media/hda6. Do I need to make a backup directory in hda6 beforehand? If so, would this be correct?
mkdir /media/hda6/backups
Also, does this look correct for making the backup?
rdiff-backup --exclude /tmp/* --exclude /proc/* --exclude /sys/* --exclude /media/*/* /media/hda5 /media/hda6/backups (assuming I have to make a backup directory)
To restore, do I have to use a live-CD and have the partitions unmounted, or mount both?
Does this look like it will do the job?
rdiff-backup -r now /media/hda6/backups /media/hda5
I'm probably overlooking some things I should include, but don't know what. Thanks in advance--kurt |
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illegitimati non carborundum
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Titel:
Verfasst am: 04.07.2006, 08:32 Uhr
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Team Member
Anmeldung: 06. Mai 2005
Beiträge: 3087
Wohnort: berlin
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kurt,
from the top of my 5 year younger brain:
i think, there is a bug with rdiff, when you use more then 1 --exclude.
there is a thread on the forum (use find) about that by H2.
but you dont really need the excludes or 1 should be enough.
greetz
devil |
_________________
<<We are Xorg - resistance is futile - you will be axximilated>>
Host/Kernel/OS "devilsbox" running[2.6.19-rc1-git5-kanotix-1KANOTIX-2006-01-RC4 ]
CPU Info AMD Athlon 64 3000+ clocked at [ 803.744 MHz ]
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Titel:
Verfasst am: 05.07.2006, 11:27 Uhr
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Anmeldung: 05. Dez 2005
Beiträge: 414
Wohnort: Auckland, New Zealand
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@2radical ...
- Yep, make a backup directory (actually you may not have to, but I dunno if it'll work or not).
- Make sure that /media/hda6 is bigger than (ie is a larger partition ... ie more free space than) /media/hda6 ... as hda6 must not only hold an existing copy, but also some incremental backups.
- For backing up, what you wrote:
rdiff-backup --exclude /tmp/* --exclude /proc/* --exclude /sys/* --exclude /media/*/* /media/hda5 /media/hda6/backups
looks almost fine ... but I put the exclude directories in quotes, so you'd have:
rdiff-backup --exclude '/tmp/*' --exclude '/proc/*' --exclude '/sys/*' --exclude '/media/*/*' /media/hda5 /media/hda6/backups
The reason for the quotes is, well it's been a while since I've studied rdiff-backup ... but (and this is true for all bash scripts) it's so the rdiff-backup will be passed the * ... otherwise bash with expand it before it passes the arguments to rdiff-backup. The rdiff-backup wants the * so it can do the expanding itself. (but for all I know, rdiff-backup may work for you without the quotes, I can't rememer, but I wouldn't recommend it)
I've had to do a lot of backing up and restoring lately, and I havent had any issues with multiple excludes yet (but I'll watch out for it) (and make sure you use the quotes).
- To restore, yes, boot up via a live-CD, and mount both partitions. Then you can do just what you said:
rdiff-backup -r now /media/hda6/backups /media/hda5
(no excludes neccessary if you boot up from a live cd ... make sure you do or you may lose all your data like I did when I was experimenting!) |
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Linux is evolution, not intelligent design - Linus Torvalds
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Titel:
Verfasst am: 05.07.2006, 16:55 Uhr
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Anmeldung: 07. Dez 2005
Beiträge: 369
Wohnort: Port Angeles, Wa. USA
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| Thanks for your reply. I've installed Easter & have a different partition scheme now, & am having a few difficulties. But thanks for the info. Once I get things straightened out I will be using it. |
_________________
illegitimati non carborundum
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Titel:
Verfasst am: 05.07.2006, 19:33 Uhr
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Anmeldung: 12. Mar 2005
Beiträge: 1005
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devil, yes, the last time I used the latest rdiff-backup it no longer supported multiple --excludes.
However, even the first times I tested it there was a limit of I think 3 excludes before it would exit with errors. So the solution is to just use the:
--exclude-globbing-filelist
option, which calls a text file of excludes. Using a text file is a lot easier long term, and isn't as cluttered, and doesn't trigger whatever limit rdiff-backup has in the most recent version.
That's a much more flexible way to do it too, it allows within that file both includes and excludes, which can be very useful, for example, say you want to exclude all of /var/www except for 1 directory, you can simply say in the text file:
/var/www
+ /var/www/somefolder
The rdiff-backup manfile is unusually helpful and clear by the way, it's actually all you need to get rdiff-backup running.
Zitat:
Lines starting with "+ " are interpreted as include directives, even if found in a filelist referenced by --exclude-filelist. Similarly, lines starting with "- " exclude files even if they are found within an include filelist.
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Titel:
Verfasst am: 05.07.2006, 20:32 Uhr
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Anmeldung: 14. Apr 2006
Beiträge: 60
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Just to add to the thread, I've used rdiff-backup for several months (I worked hard to get the latest -- 1.1.5 -- version installed on several different distros; SUSE was difficult to get that on there, but I did) and there's no problem with more than three '--exclude' additions.
To one of the original posters, 'keep' is helpful for getting a GUI for rdiff-backup, but I find that getting it to run very consistently (at least in the current incarnation) is more difficult than using rdiff-backup itself. |
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Titel:
Verfasst am: 06.07.2006, 02:23 Uhr
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Anmeldung: 05. Dez 2005
Beiträge: 414
Wohnort: Auckland, New Zealand
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I use rdiff-backup version 1.1.5 too ... and I don't have a problem with multiple excludes (eg for my root partition I use --exclude '/tmp/*' --exclude '/proc/*' --exclude '/sys/*' --exclude '/media/*/*' ) ... but I do agree that it's messy, and using --exclude-globbing-filelist is a great idea 
BTW - note the cunning use of '/tmp/*' instead of '/tmp' (not that I was cunning, someone else pointed it out to me) ... the /tmp directectory name is backed up, but none of the files/directories in it are backed up ... so it means that on a restore, the /tmp directory is restored as an empty directory (which is what I want) and with the permissions set right. If I used '/tmp' instead, then when I restore the partition, /tmp directory will be missing, and X will not boot up, but will complain bitterly. (I'd have to create the directory and set the permission right, and I'd have to try to remember how to set the special sticky flag that this directory has) This cunning trick is used for the other excludes listed above too (and the extra cunning '/media/*/*' ... eg /media/dvd will exist as a mount point). This means that when I do a restore of my root partition, everything works.
Ahhh yes the man page is great ... I love man pages that have actual examples.
I see the man page says to put quotes around directory globs on the command line (eg '/tmp/*' instead of just /tmp*) as it says:
"Remember that you may need to quote these characters when typing them into a shell, so the shell does not inter-pret the globbing patterns before rdiff-backup sees them."
... but the exclude-globbing-filelist file should not have the quotes the quotes around the directory glob names (according to the man page, although I haven't tested this).
So I could have is a file called "globbing-list.txt" (put in /root/ say)
- /tmp/*
- /proc/*
- /sys/*
- /media/*/*
... then all I'd need to call to back up my root partition is:
rdiff-backup --exclude-globbing-filelist /root/globbing-list.txt / /media/hdb1/rdiff-backups/192.168.1.5/root
Much nicer. |
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Titel:
Verfasst am: 06.07.2006, 03:54 Uhr
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Anmeldung: 05. Dez 2005
Beiträge: 414
Wohnort: Auckland, New Zealand
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| I just tested that, and it works. |
_________________
Linux is evolution, not intelligent design - Linus Torvalds
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Titel:
Verfasst am: 06.07.2006, 06:55 Uhr
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Anmeldung: 07. Dez 2005
Beiträge: 369
Wohnort: Port Angeles, Wa. USA
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| My Easter installation is trashed. Boot errors, can't print, /etc/fstab was written wrong, have to start all over disabling all journaling & delete partitions. What a nightmare. It'll be my 4th attempt at installation. Ho-hum have to put everything else on hold till things are fixed. Keeping my fingers crossed. |
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illegitimati non carborundum
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