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-rw-r--r--src/basic/mountpoint-util.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/basic/mountpoint-util.c b/src/basic/mountpoint-util.c
index c813a4f56f..240df3782a 100644
--- a/src/basic/mountpoint-util.c
+++ b/src/basic/mountpoint-util.c
@@ -411,6 +411,7 @@ bool fstype_is_ro(const char *fstype) {
/* All Linux file systems that are necessarily read-only */
return STR_IN_SET(fstype,
"DM_verity_hash",
+ "cramfs",
"erofs",
"iso9660",
"squashfs");