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This commit fixes a few typos and adds 1-2 failsafes for borderline c… #12

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This commit fixes a few typos and adds 1-2 failsafes for borderline c… #12

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This commit fixes a few typos and adds 1-2 failsafes for borderline c…
why-not-try-calmer Jan 15, 2023
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why-not-try-calmer Jan 15, 2023
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17 changes: 13 additions & 4 deletions Pop_Btrfs_Subvolumes_with_Timeshift_Condensed.md
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Original file line number Diff line number Diff line change
Expand Up @@ -66,17 +66,17 @@ umount /mnt

Each new line is a separate command to run. Remove the `ssd` option if you are not using an SSD.
```
mount -o sudo mount -o defaults,subvol=@,ssd,discard,noatime,space_cache,compress=zstd,commit=120 <path to root partition> /mnt
mount -o defaults,subvol=@,ssd,discard,noatime,space_cache,compress=zstd,commit=120 <path to root partition> /mnt

for i in /dev/dev/pts/proc/sys/run; do sudo mount -B $i /mnt$i; done
for i in dev dev/pts proc sys run; do sudo mount -B /$i /mnt/$i; done

sudo cp /etc/resolv.conf /mnt/etc/
```

In case you are reinstalling over a previous Btrfs partition, the first command is likely to fail. To get it to work you'll need to add the `clear_cache` parameter, as in:

```
mount -o sudo mount -o <...other options>,clear_cache <path to root partition> /mnt
mount -o <...other options>,clear_cache <path to root partition> /mnt
```

At this point the terminal might warn about `/etc/resolv.conf` being a duplicate of the target; you can safely ignore the warning.
Expand All @@ -87,13 +87,18 @@ chroot /mnt
nano /etc/fstab
```

Make sure you have one line starting with UUID for `/` and one for `/home`. The only difference between these two lines is that one uses the `subvol=@` parameter while the other uses `subvol=@home`. (Remove the `ssd` option if you are not using an SSD). Example:
Make sure you have one line starting with UUID for `/` and one for `/home`. The only difference between these two lines is that one uses the `subvol=@` parameter while the other uses `subvol=@home`. Example:

```
UUID=18226258-bb30-4552-98c0-775ae3d74433 / btrfs defaults,subvol=@,ssd,noatime,space_cache,commit=120,compress=zstd 0 0

UUID=18226258-bb30-4552-98c0-775ae3d74433 /home btrfs defaults,subvol=@home,ssd,noatime,space_cache,commit=120,compress=zstd 0 0
```

NB:
- remove the `ssd` option if you are not using an SSD
- some NVMe devices might need to replace `space_cache` with `space_cache=v2`.

Save the file with Ctrl + O and close with Ctrl + X. Make sure you get the following result from `mount -av`:

```
Expand All @@ -113,6 +118,10 @@ update-initramfs -c -k all
```
You can now exit the terminal with `exit` (you will need to enter it twice) and reboot to the newly installed system.

NB:
- in a few cases `/home` is not properly written to disk; when this happens the current user is sent back to the login screen even though they successfully authenticated
- if that happens to you. you can simply switch to a tty with `Ctrl + Alt + F3`, log in from the console and then run `sudo mkhomedir_helper <your_user_account>`

## Optional step: Defrag & rebalance data blocks

```
Expand Down