Re: backing up backups

2022-04-21 Thread David Wright
On Mon 18 Apr 2022 at 16:06:48 (-0400), Default User wrote: > BTW, I think I have narrowed the previous restore problem down to what I > believe is a "buggy" early UEFI implementation on my computer (circa 2014). > Irrelevant now; I have re-installed with BIOS (not UEFI) booting and MBR > (not

Re: backing up backups

2022-04-19 Thread David Wright
On Tue 19 Apr 2022 at 07:19:58 (+0200), DdB wrote: > So i came up with the idea to create a sort of inventory using a sparse > copy of empty files only (using mkdir, truncate + touch). The space > requirements are affordable (like 2.3M for an inventory representing > 3.5T of data). The effect

Re: backing up backups

2022-04-18 Thread DdB
Hello, Am 11.04.2022 um 04:58 schrieb Default User: > So . . .   what IS the correct way to make "backups of backups"? > I don't know that for sure, but at first glance, i dont understand the complexity of your setup either. Seems to by quite elaborate, which is certainly suiting your needs.

Re: backing up backups

2022-04-18 Thread Keith Bainbridge
On 11/4/22 10:58, Default User wrote: So . . .   what IS the correct way to make "backups of backups"? Sorry to take so long to respond. I am traveling and have only short periods that I can spend on non-pressing matters. To answer your question: the method that gets you the result you

Re: backing up backups

2022-04-18 Thread David Christensen
On 4/18/22 13:06, Default User wrote: Finally, fun fact: Many years ago, at a local Linux user group meeting, Sun Microsystems put on a demonstration of their ZFS filesystem. To prove how robust it was, they pulled the power cord out of the wall socket on a running desktop computer. Then they

Re: backing up backups

2022-04-18 Thread Default User
On Thu, Apr 14, 2022 at 3:24 AM David Christensen wrote: > On 4/13/22 20:03, Default User wrote: > > On Wed, Apr 13, 2022 at 4:42 PM David Christensen wrote: > > >> As you find system administration commands that work, put them into > >> scripts: > >> > >> #!/bin/sh > >> sudo rsync -aAXHxvv

Re: backing up backups

2022-04-14 Thread David Christensen
On 4/13/22 20:03, Default User wrote: On Wed, Apr 13, 2022 at 4:42 PM David Christensen wrote: As you find system administration commands that work, put them into scripts: #!/bin/sh sudo rsync -aAXHxvv --delete --info=progress2,stats2,name2 /media/default/MSD1/ /media/default/MSD2/ Use a

Re: backing up backups

2022-04-13 Thread Default User
On Wed, Apr 13, 2022 at 4:42 PM David Christensen wrote: > On 4/13/22 09:20, Default User wrote: > > >> Hey guys, sorry for just getting back with you now. > >> Unfortunately, I am just now recovering from a self-inflicted computer > >> disaster. > >> > >> While fighting with rsync, I did

Re: backing up backups

2022-04-13 Thread David Christensen
On 4/13/22 09:20, Default User wrote: Hey guys, sorry for just getting back with you now. Unfortunately, I am just now recovering from a self-inflicted computer disaster. While fighting with rsync, I did either: sudo rsync -aAXHSxvv --delete --info=progress2,stats2,name2 /media/default/MSD1/

Re: backing up backups

2022-04-13 Thread Default User
On Wed, Apr 13, 2022 at 12:09 PM Default User wrote: > > > On Mon, Apr 11, 2022 at 12:03 PM David Christensen < > dpchr...@holgerdanske.com> wrote: > >> On 4/10/22 22:15, to...@tuxteam.de wrote: >> > On Sun, Apr 10, 2022 at 09:44:59PM -0700, David Christensen wrote: >> >> On 4/10/22 19:58,

Re: backing up backups

2022-04-11 Thread David Christensen
On 4/10/22 22:15, to...@tuxteam.de wrote: On Sun, Apr 10, 2022 at 09:44:59PM -0700, David Christensen wrote: On 4/10/22 19:58, Default User wrote: Hello! My setup: - single home x86-64 computer running Debian 11 Stable, up to date. - one 4-Tb external usb hard drive to use as a backup device,

Re: backing up backups

2022-04-10 Thread tomas
On Sun, Apr 10, 2022 at 09:44:59PM -0700, David Christensen wrote: > On 4/10/22 19:58, Default User wrote: > > Hello! > > > > My setup: > > - single home x86-64 computer running Debian 11 Stable, up to date. > > - one 4-Tb external usb hard drive to use as a backup device, labeled MSD1. > > -

Re: backing up backups

2022-04-10 Thread David Christensen
On 4/10/22 19:58, Default User wrote: Hello! My setup: - single home x86-64 computer running Debian 11 Stable, up to date. - one 4-Tb external usb hard drive to use as a backup device, labeled MSD1. - another identical usb hard drive, labeled MSD2, to use as a copy of the backups on MSD1. - the

Re: backing up backups

2022-04-10 Thread Default User
On Sun, Apr 10, 2022 at 11:13 PM David wrote: > On Mon, 11 Apr 2022 at 12:59, Default User > wrote: > > > Then I try to use rsync to make an identical copy of backup device MSD1 > on an absolutely identical 4-Tb external usb hard drive, > > labeled MSD2, using this command: > > > > sudo rsync

Re: backing up backups

2022-04-10 Thread David
On Mon, 11 Apr 2022 at 12:59, Default User wrote: > Then I try to use rsync to make an identical copy of backup device MSD1 on an > absolutely identical 4-Tb external usb hard drive, > labeled MSD2, using this command: > > sudo rsync -aAXHxvv --delete --info=progress2,stats2,name2 >

backing up backups

2022-04-10 Thread Default User
Hello! My setup: - single home x86-64 computer running Debian 11 Stable, up to date. - one 4-Tb external usb hard drive to use as a backup device, labeled MSD1. - another identical usb hard drive, labeled MSD2, to use as a copy of the backups on MSD1. - the computer and all storage devices are