50 lines
1.1 KiB
Markdown
50 lines
1.1 KiB
Markdown
## migrating a host to a new drive
|
|
### 1. copy persistent data off of the host:
|
|
```sh
|
|
$ mkdir -p mnt old/persist
|
|
$ mount /dev/$old mnt
|
|
$ rsync -arv mnt/persist/ old/persist/
|
|
```
|
|
|
|
### 2. flash the new drive
|
|
```
|
|
$ nix-build -A hosts.moby.img
|
|
$ dd if=$(readlink ./result) of=/dev/$new bs=4M oflag=direct conv=sync status=progress
|
|
```
|
|
|
|
### 3.1. expand the partition
|
|
```sh
|
|
$ cfdisk /dev/$new
|
|
# scroll to the last partition
|
|
> Resize
|
|
leave at default (max)
|
|
> Write
|
|
type "yes"
|
|
> Quit
|
|
```
|
|
### 3.2. expand the filesystem
|
|
```
|
|
$ mkdir -p /mnt/$new
|
|
$ mount /dev/$new /mnt/$new
|
|
$ btrfs filesystem resize max /mnt/$new
|
|
```
|
|
|
|
### 4. copy data onto the new host
|
|
```
|
|
$ mkdir /mnt/$new
|
|
$ mount /dev/$new /mnt/$new
|
|
# if you want to use btrfs snapshots (e.g. snapper), then create the data directory as a subvolume:
|
|
$ btrfs subvolume create /mnt/$new/persist
|
|
# restore the data
|
|
$ rsync -arv old/persist/ /mnt/$new/persist/
|
|
```
|
|
|
|
### 5. ensure/fix ownership
|
|
```
|
|
$ chmod -R a+rX /mnt/$new/nix
|
|
# or, let the nix daemon do it:
|
|
$ nix copy --no-check-sigs --to /mnt/$new $(nix-build -A hosts.moby)
|
|
```
|
|
|
|
### 6. insert the disk into the system, and boot!
|