so for backuping a gentoo installation on usb disk is still better to build a stage4 with the script. i need to make a backup working copy of my gentoo notebook box and i have only one disk drive. that is the real problem with using dd or clonezilla...
2007/10/8, Brian Litzinger <[EMAIL PROTECTED]>: > > On Mon, Oct 08, 2007 at 11:17:40AM +0200, Beso wrote: > > does this work from hd to external usb disk? > > dd will not work between disparate media. It is even > risky between different (capacity, manufacturer) drives. > > If by "this" you mean the latter stategy involving > sfdisk/rsync/grub the sfdisk step will mostly not work > between disparate media. > > > 2007/10/7, Brian Litzinger <[EMAIL PROTECTED]>: > > > > > > On Sun, Oct 07, 2007 at 12:49:11AM -0400, Peter Davoust wrote: > > > > This may be a little noobish, and it may have been said, but can't > you > > > > just install the new drive, partition it identically to the original > > > > drive and then... > > > > > > > > dd if=/dev/hda1 of=/dev/hdb1 > > > > dd if=/dev/hda2 of=/dev/hdb2 > > > > > > > > so on and so forth until you've got everything copied? Or event just > > > > > > > > dd if=/dev/hda of=/dev/hdb > > > > > > > > Wouldn't that work? > > > > > > The latter works fine in my experience. I do it regularly. > > > > > > The downside, is that cloning a 750GB drive takes a while > > > as it duplicates everything including unused sectors. > > > > > > Things like clonezilla just copy the "used"/active sectors. > > > > > > A popular way is to use sfdisk. I do not remember the exact > > > syntax, but a pair of sfdisk commands can transfer the partition > > > information directly between two drives. > > > > > > Then use rsync to move the data across. > > > > > > You may have to run grub setup on the new disk too. > > > > > > -- > > > Brian Litzinger > -- > [EMAIL PROTECTED] mailing list > > -- dott. ing. beso
