On 5/10/24 11:25, Chris Albertson wrote:
Rsync will copy data at the file system level. I think the OP wants to copy
the partition tables and boot sector. But rsync can copy across a network
and is a decent way to make a backup of your data.
Clonzilla loks like it can work. I’ve always used “dd” because it is a two
letter command and very easy to rember the exact spelling, and it just works.
Clonzilla might be better for people who find it hard to type in long complex
commands like “dd” and prefer a menu-based system.
All good advice. Choose your favorite. The one I miss is the one that
can take an arm64 install, with all the additions to do a job, and back
it up over the network to a file that only the total used on that arm64
system. one that can then be copied to a fresh u-sd card of much greater
capacity, and which will then on first boot, expand the partitions to
use all of the new u-sd cards capacity. I've been using 64G cards and
had had no losses. 16G cards are big enough but have a lifetime of
around a year. I have some 128G I'll use for the next install.
The theory is, the more surplus capacity the card has, the better the
cards own software can maintain it. Power usage is about 25 watts total
for the pi and nonitor when the lathe is powered down, so that rpi4 is
never turned off, it even has a small ups that holds it up well while
the kohler 20kw is starting, a black time of around 8 seconds.
So I'm looking for a dd like command that will do that over my local
network. cd / && sudo du -h says there is 6.2G in actual use. But there
is a 256G buildbot drive not currently mounted but about 70% full, so
that total would be considerably more.
So what utility can make me a bootable image thats only 6.5G that I can
store here, dd to a new card that will boot that pi and expand the file
system? And come up capable of running linuxcnc with all the stuff I've
written in the last decade. That is the $64 question. That seems like
the ideal backup system for all the architectures here. And 1, 2T SSD
could hold it all.
On May 10, 2024, at 4:03 AM, gene heskett <ghesk...@shentel.net> wrote:
On 5/10/24 06:11, andrew beck wrote:
hey everyone
a bit off topic here
i have my main laptop that i want to clone the hard drive on it for a
identical laptop for a backup
this is used for running the linuxcnc machines and programming drawing etc
anyway just want to know what software people prefer for disk cloning i
have never done it before and i'm sure someone on here is a expert on it
cheers
andrew
rsync can do that but please read the man page carefully. It can bite you just
as easily as it can help you. I use it, but will not call myself an expert.
Cheers, Gene Heskett, CET.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
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Emc-users mailing list
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Cheers, Gene Heskett, CET.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
_______________________________________________
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users