diff --git a/config/redbear-mini.toml b/config/redbear-mini.toml
index 44d9f1e829..77b2479117 100644
--- a/config/redbear-mini.toml
+++ b/config/redbear-mini.toml
@@ -10,7 +10,14 @@
 include = ["minimal.toml", "redbear-legacy-base.toml", "redbear-netctl.toml", "redbear-device-services.toml", "redbear-boot-stages.toml"]
 
 [general]
-filesystem_size = 512
+# The mini package set (base + full driver/daemon set, brush/bash/zsh, coreutils,
+# console net/diagnostic tools, iwlwifi/bluetooth firmware) is ~350 MB *compressed*
+# pkgars; the RedoxFS image holds the uncompressed extraction plus live writable
+# headroom, which overflows a 512 MB image (installer aborts with os error 28,
+# "No space left on device"). The installer does not content-size the filesystem —
+# this value is the literal image size — so it must fit the package set. 2048 MB
+# leaves comfortable headroom for a text-only live/recovery target.
+filesystem_size = 2048
 
 [users.messagebus]
 uid = 100