Those are all good points, thanks Edouard. I had considered using a guix system image definition to build an image that could be DD'd onto a new system disk.
However, I'm using btrfs inside a cryptroot, and btrfs doesn't appear to be supported by the image definitions at present. On Tue, 18 Mar 2025, 11:21 Edouard Klein, <e...@rdklein.fr> wrote: > Hi ! > > That sounds about right. Be careful though that the guix installation > image often is widely out of date. It may therefore take quite long to > install your system, if it works at all (if will fail if you use > packages that were not defined when the installer was created, or if you > use channels). > > You'd need to guix pull at some point to get a guix that can understand > your configuration. > > Be careful also to how your current configuration references your > current boot disk, if you change disks, you may need to change that part > of the configuration as well. My advice would be to give a label to your > current disk, and apply the same label to the new disk, and then use > that in your operating-system declaration. > > Those are minor issues that you can forget unless you absolutely need to > be up and running less than one or two hours after a full disk failure. > Otherwise you can deal with them when the day comes. > > If however you can not handle any long downtime, then I strongly suggest > you address those two points and run a exercise just to make sure it > works and that your backups are actually operational. > > Cheers, > > Edouard. > > Laurence Rochfort <laurence.rochf...@gmail.com> writes: > > > Hello all, > > > > I have my whole system declaratively configured using config.scm and > > home-configuration.scm stored in my home directory. My entire home > > folder is backed up by btrbk every hour to an external location. > > > > Am I correct in thinking that to restore from a failed disk it is > sufficient to: > > > > - Boot guix installer > > - Partition disk > > - Provide existing config.scm to installer "guix system init" > > - Reboot into new system > > - Restore home folder from backup > > - Run "guix home reconfigure" > > > > > > Regards, > > Laurence >
