Re: [CentOS] Linux backup help
Thanks! (and sorry for the late response). On 12/19/08, Patrice Guay wrote: > Amos Shapira wrote : >> 2008/11/16 Ian Forde : >>> Actually, that's the problem that Red Hat Satellite Server can solve. >>> You can approve packages for deployment. Thus, when provisioning new >>> servers, they get updates from the approved list. And servers are >>> grouped by class. For the free version, one should investigate Project >>> SpaceWalk. http://www.redhat.com/spacewalk/ >> >> Thanks for the pointer. I've looked at it a few weeks ago back when >> there was some news about it and it looked promising but I didn't have >> time to learn it in depth. Will keep it in my stack of things to look >> at. >> > I just wrote a HowTo on this topic. Spacewalk can help you manage > software versions across different environments using software channels. > The document is available here: > http://wiki.centos.org/HowTos/PackageManagement/Spacewalk > > Regards, > -- > Patrice Guay > patrice.g...@nanotechnologies.qc.ca > > > ___ > CentOS mailing list > CentOS@centos.org > http://lists.centos.org/mailman/listinfo/centos > ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Linux backup help
Amos Shapira wrote : > 2008/11/16 Ian Forde : >> Actually, that's the problem that Red Hat Satellite Server can solve. >> You can approve packages for deployment. Thus, when provisioning new >> servers, they get updates from the approved list. And servers are >> grouped by class. For the free version, one should investigate Project >> SpaceWalk. http://www.redhat.com/spacewalk/ > > Thanks for the pointer. I've looked at it a few weeks ago back when > there was some news about it and it looked promising but I didn't have > time to learn it in depth. Will keep it in my stack of things to look > at. > I just wrote a HowTo on this topic. Spacewalk can help you manage software versions across different environments using software channels. The document is available here: http://wiki.centos.org/HowTos/PackageManagement/Spacewalk Regards, -- Patrice Guay patrice.g...@nanotechnologies.qc.ca ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Linux backup help
Kevin Kempter wrote: Hi All; I'm awaiting a new linux laptop that will be my primary work machine. I want to implement a strategy that allows me as easily as possible to revert back to a former state. My primary concern is a scenario where I apply system updates and it breaks something that for me is critical. I wonder if a simple rsync script would work. If so, here's what I'm thinking: 1) updates are available so I execute the rsync script which pulls any updated files from my laptop to a backup server/drive 2) apply updates 3) if something breaks (even if I can no longer login) I boot the laptop, run the rsync script in the opposite direction (push files from the backup drive to the laptop) I assume that if I were to execute step 3 above that my system would be in the exact state that it was before I ran the updates. Is this a correct assumption ? Are there better approaches ? Thanks in advance.. Taking a disk image snapshot with something like clonezilla might be an alternative for you to consider. http://clonezilla.org/ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Linux backup help
Kevin Kempter wrote: Hi All; I'm awaiting a new linux laptop that will be my primary work machine. I want to implement a strategy that allows me as easily as possible to revert back to a former state. My primary concern is a scenario where I apply system updates and it breaks something that for me is critical. I wonder if a simple rsync script would work. If so, here's what I'm thinking: 1) updates are available so I execute the rsync script which pulls any updated files from my laptop to a backup server/drive 2) apply updates 3) if something breaks (even if I can no longer login) I boot the laptop, run the rsync script in the opposite direction (push files from the backup drive to the laptop) I assume that if I were to execute step 3 above that my system would be in the exact state that it was before I ran the updates. Is this a correct assumption ? Depends in part on the rsync commands, the file structure, and the order of operations. Restoring over a running system would overwrite files that are in use, particularly in /etc and /var - not a good idea. Restoring from a backup of a live system would restore copies of files that might have been in the process of being changed. Would be safer to do this using a live CD for both the backup and the restore. Would want to do the backup/restore on a per-filesystem basis. Assuming you have / /boot and /home: rsync --archive --delete --hard-links --one-file-system / /backup/laptop/ rsync --archive --delete --hard-links --one-file-system /boot/ /backup/laptop/boot/ rsync --archive --delete --hard-links --one-file-system /home/ /backup/laptop/home/ On restore would need to mount and restore / first, then mount other partitions and restore them. Are there better approaches ? Perhaps using other backup tools (backuppc has been mentioned favorably recently), but it should be workable; however, this sounds like a time/labor-intensive approach every time there are updates, for a low probability of fatal problems with the OS. Just backing up user files would be a lot faster and easier. Phil begin:vcard fn:Philip Schaffner n:Schaffner;Philip org:NASA Langley Research Center;Electromagnetics and Sensors Branch adr:Mail Stop 473;;8 North Dryden Street;Hampton;VA;23681;USA email;internet:[EMAIL PROTECTED] title:Aerospace Technologist tel;work:757-864-1809 tel;fax:757-864-7891 x-mozilla-html:FALSE version:2.1 end:vcard ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
