From ac3dd638145486a37107d9e263cafb3cc6e4e85f Mon Sep 17 00:00:00 2001 From: Alban Crequy Date: Wed, 30 Jul 2025 12:14:13 +0200 Subject: [PATCH] mount /dev/pts I am testing a ebpf program that hooks into tty functions. For this, my unit test opens /dev/ptmx to create a pseudo terminal (PTY). But opening /dev/ptmx fails unless devpts is mounted. Signed-off-by: Alban Crequy --- init.go | 2 ++ 1 file changed, 2 insertions(+) diff --git a/init.go b/init.go index 1e87c6d..b626e5e 100644 --- a/init.go +++ b/init.go @@ -89,6 +89,7 @@ var earlyMounts = mountTable{ {"sys", "/sys", "sysfs", "", unix.MS_NOSUID | unix.MS_NOEXEC | unix.MS_NODEV, true}, {"proc", "/proc", "proc", "", unix.MS_NOSUID | unix.MS_NOEXEC | unix.MS_NODEV, true}, {"devtmpfs", "/dev", "devtmpfs", "mode=0755", unix.MS_NOSUID | unix.MS_STRICTATIME, true}, + {"devpts", "/dev/pts", "devpts", "gid=5,mode=620", unix.MS_NOSUID | unix.MS_NOEXEC, true}, {"securityfs", "/sys/kernel/security", "securityfs", "", unix.MS_NOSUID | unix.MS_NOEXEC | unix.MS_NODEV, false}, // We don't need tmpfs mounts since the root filesystem is already ephemeral. // See prepareRoot(). @@ -114,6 +115,7 @@ var fsMagic = map[string]int64{ "bpf": unix.BPF_FS_MAGIC, "cgroup2": unix.CGROUP2_SUPER_MAGIC, "debugfs": unix.DEBUGFS_MAGIC, + "devpts": unix.DEVPTS_SUPER_MAGIC, "devtmpfs": unix.TMPFS_MAGIC, "overlay": unix.OVERLAYFS_SUPER_MAGIC, "proc": unix.PROC_SUPER_MAGIC,