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-rw-r--r--src/partition/repart.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/src/partition/repart.c b/src/partition/repart.c
index 976d1d538b..356fd9152c 100644
--- a/src/partition/repart.c
+++ b/src/partition/repart.c
@@ -4318,8 +4318,18 @@ static int parse_argv(int argc, char *argv[]) {
if (arg_image && arg_root)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Please specify either --root= or --image=, the combination of both is not supported.");
else if (!arg_image && !arg_root && in_initrd()) {
- /* Default to operation on /sysroot when invoked in the initrd! */
- arg_root = strdup("/sysroot");
+
+ /* By default operate on /sysusr/ or /sysroot/ when invoked in the initrd. We prefer the
+ * former, if it is mounted, so that we have deterministic behaviour on systems where /usr/
+ * is vendor-supplied but the root fs formatted on first boot. */
+ r = path_is_mount_point("/sysusr/usr", NULL, 0);
+ if (r <= 0) {
+ if (r < 0 && r != -ENOENT)
+ log_debug_errno(r, "Unable to determine whether /sysusr/usr is a mount point, assuming it is not: %m");
+
+ arg_root = strdup("/sysroot");
+ } else
+ arg_root = strdup("/sysusr");
if (!arg_root)
return log_oom();
}