[pve-devel] [PATCH installer 2/6] fix #5250: install: write btrfs `compress` option to fstab

[Christoph Heiss]

`compress` instead of `compress-force` is used, as the latter can have
unindented (performance) implications, as the name implies. That would
be neither expected by users nor should such a decision made without the
user explicitly opting for it.

Others do the same, e.g. the installer for RedHat/Fedora systems (aka.
Anaconda) opts for `compress` also. And if Fedora uses it for their
systems, it's fine for us too.

Signed-off-by: Christoph Heiss <c.heiss at proxmox.com>
---
 Proxmox/Install.pm | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Proxmox/Install.pm b/Proxmox/Install.pm
index c0f8955..f3bc5aa 100644
--- a/Proxmox/Install.pm
+++ b/Proxmox/Install.pm
@@ -1011,7 +1011,13 @@ sub extract_data {
 
 	    die "unable to detect FS UUID" if !defined($fsuuid);
 
-	    $fstab .= "UUID=$fsuuid / btrfs defaults 0 1\n";
+	    my $btrfs_opts = Proxmox::Install::Config::get_btrfs_opt();
+
+	    my $mountopts = 'defaults';
+	    $mountopts .= ",compress=$btrfs_opts->{compress}"
+		if $btrfs_opts->{compress} ne 'off';
+
+	    $fstab .= "UUID=$fsuuid / btrfs $mountopts 0 1\n";
 	} else {
 	    my $root_mountopt = $fssetup->{$filesys}->{root_mountopt} || 'defaults';
 	    $fstab .= "$rootdev / $filesys ${root_mountopt} 0 1\n";
-- 
2.44.0