Hard drive imaging
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From: Andy Cap on 23 Jun 2008 05:19 On Mon, 23 Jun 2008 09:37:15 +0100, chris <ithinkiam(a)gmail.com> wrote: >Have you had a look at System Rescue CD (http://www.sysresccd.org)? It's >a liveCD which includes the Linux disk imaging app (amongst many others) >partimage. I've used partimage a bit in the past to move partitions >around, but not as a necessity as yet, and I like it. No Chris but I will. It appears that LVM causes problems for most back up utilities. I've read a little bit about taking snapshots but this was the reason I was looking for something akin to Drive Image which amounts to three questions. Which disc do you want to achive? Where do you want to put it? What do you want to call it? And I KNOW it works. I've almost come to the conclusion that it's as simple and probably most reliable, to backup the /home directory and simple rebuild my very basic PC from scratch with the orignal packages. It seems like you have to do this with most Fedora upgrades anyway. :-) Andy
From: Ian Rawlings on 23 Jun 2008 05:38 On 2008-06-23, Andy Cap <Andy_Cap(a)nosuch.co.uk> wrote: > I've almost come to the conclusion that it's as simple and probably most > reliable, to backup the /home directory and simple rebuild my very basic PC from > scratch with the orignal packages. You can back up the whole system and restore it just as easily, the only complex parts come from getting the boot loader to re-write the boot sector on the new disc, but figuring out how to do this is very quick and easy, it's rarely hard. Then you have to watch out for changes from /dev/hda to /dev/sda for example, or IP address changes due to DHCP changes (easily fixed), and of course graphics card changes. As long as you're careful with those and don't go changing microprocessor type then it's not too bad. You can test it out by getting another machine, copying the machine across to the other disc and playing with the new machine, I back up my laptop using rsync and on occasion have used the backed-up files to create a new machine in a hurry (I use gentoo so installs can take ages). -- Blast off and strike the evil Bydo empire! http://youtube.com/user/tarcus69 http://www.flickr.com/photos/tarcus/sets/
From: jasee on 24 Jun 2008 04:25 "Andy Cap" <Andy_Cap(a)nosuch.co.uk> wrote in message news:0rpu54luqs7bd3jdsaqfkffi8o9mtu1q9b(a)4ax.com... > On Mon, 23 Jun 2008 09:37:15 +0100, chris <ithinkiam(a)gmail.com> wrote: > > >>Have you had a look at System Rescue CD (http://www.sysresccd.org)? It's >>a liveCD which includes the Linux disk imaging app (amongst many others) >>partimage. I've used partimage a bit in the past to move partitions >>around, but not as a necessity as yet, and I like it. > > No Chris but I will. > It appears that LVM causes problems for most back up utilities. I've read > a > little bit about taking snapshots but this was the reason I was looking > for > something akin to Drive Image which amounts to three questions. > Which disc do you want to achive? > Where do you want to put it? > What do you want to call it? > And I KNOW it works. > I've almost come to the conclusion that it's as simple and probably most > reliable, to backup the /home directory and simple rebuild my very basic > PC from > scratch with the orignal packages. > It seems like you have to do this with most Fedora upgrades anyway. :-) I can't understand why any would willing use LVM. What are the advantages of creating and using logical volumes rather than simple physical partitions, extended partitions etc which can be easily resized for example (if necessary by utility disks such as gparted? It's about as sensible as creating dynamic disks in windows.
From: Matthew Wild on 24 Jun 2008 04:58 jasee wrote: > "Andy Cap" <Andy_Cap(a)nosuch.co.uk> wrote in message > news:0rpu54luqs7bd3jdsaqfkffi8o9mtu1q9b(a)4ax.com... >> On Mon, 23 Jun 2008 09:37:15 +0100, chris <ithinkiam(a)gmail.com> wrote: >> >> >>> Have you had a look at System Rescue CD (http://www.sysresccd.org)? It's >>> a liveCD which includes the Linux disk imaging app (amongst many others) >>> partimage. I've used partimage a bit in the past to move partitions >>> around, but not as a necessity as yet, and I like it. >> No Chris but I will. >> It appears that LVM causes problems for most back up utilities. I've read >> a >> little bit about taking snapshots but this was the reason I was looking >> for >> something akin to Drive Image which amounts to three questions. >> Which disc do you want to achive? >> Where do you want to put it? >> What do you want to call it? >> And I KNOW it works. >> I've almost come to the conclusion that it's as simple and probably most >> reliable, to backup the /home directory and simple rebuild my very basic >> PC from >> scratch with the orignal packages. >> It seems like you have to do this with most Fedora upgrades anyway. :-) > > I can't understand why any would willing use LVM. What are the advantages of > creating and using logical volumes rather than simple physical partitions, > extended partitions etc which can be easily resized for example (if > necessary by utility disks such as gparted? It's about as sensible as > creating dynamic disks in windows. > > IMO, there are many reasons to use a disk manager like LVM, including : Ability to resize, both up and down, volumes as needed with the cooperation of the filesystem. And without risking damaging any other volumes/filesystems. Ability to add multiple disk partitions to same volume group. The last one then offers another very useful option. The ability to migrate data from one disk to another. Matthew
From: jasee on 24 Jun 2008 08:53
"Matthew Wild" <M.Wild(a)rl.ac.uk> wrote in message news:g3qd0e$7c3$1(a)south.jnrs.ja.net... > jasee wrote: >> "Andy Cap" <Andy_Cap(a)nosuch.co.uk> wrote in message >> news:0rpu54luqs7bd3jdsaqfkffi8o9mtu1q9b(a)4ax.com... >>> On Mon, 23 Jun 2008 09:37:15 +0100, chris <ithinkiam(a)gmail.com> wrote: >>> >>> >>>> Have you had a look at System Rescue CD (http://www.sysresccd.org)? >>>> It's >>>> a liveCD which includes the Linux disk imaging app (amongst many >>>> others) >>>> partimage. I've used partimage a bit in the past to move partitions >>>> around, but not as a necessity as yet, and I like it. >>> No Chris but I will. >>> It appears that LVM causes problems for most back up utilities. I've >>> read >>> a >>> little bit about taking snapshots but this was the reason I was looking >>> for >>> something akin to Drive Image which amounts to three questions. >>> Which disc do you want to achive? >>> Where do you want to put it? >>> What do you want to call it? >>> And I KNOW it works. >>> I've almost come to the conclusion that it's as simple and probably most >>> reliable, to backup the /home directory and simple rebuild my very basic >>> PC from >>> scratch with the orignal packages. >>> It seems like you have to do this with most Fedora upgrades anyway. >>> :-) >> >> I can't understand why any would willing use LVM. What are the advantages >> of >> creating and using logical volumes rather than simple physical >> partitions, >> extended partitions etc which can be easily resized for example (if >> necessary by utility disks such as gparted? It's about as sensible as >> creating dynamic disks in windows. >> >> > IMO, there are many reasons to use a disk manager like LVM, including : > > Ability to resize, both up and down, volumes as needed with the > cooperation of the filesystem. And without risking damaging any other > volumes/filesystems. > > Ability to add multiple disk partitions to same volume group. > > The last one then offers another very useful option. The ability to > migrate data from one disk to another. All of which can be done without LVM with the possible exception of adding multiple partitions to the same volume and (of course) software raiding, but of course this is all dependent on the operating system understanding the lvm file system which normal disk utilities don't. |