# usb 1-1: new full-speed USB device number 3 using ci_hdrc usb 1-1: not running at top speed; connect to a high speed hub usb-storage 1-1:1.0: USB Mass Storage device detected scsi host0: usb-storage 1-1:1.0 scsi 0:0:0:0: Direct-Access General UDisk 5.00 PQ: 0 ANSI: 2 sd 0:0:0:0: [sda] 7864320 512-byte logical blocks: (4.03 GB/3.75 GiB) sd 0:0:0:0: Attached scsi generic sg0 type 0 sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] No Caching mode page found sd 0:0:0:0: [sda] Assuming drive cache: write through sda: sda1 sd 0:0:0:0: [sda] Attached SCSI removable disk root 22:11:27 : ~ # root 22:11:29 : ~ # mount /dev/sda /foo mount: mounting /dev/sda on /foo failed: Device or resource busy root 22:11:34 : ~ # rootfs.writable root 22:11:38 : ~ # mount /dev/sda /foo mount: mounting /dev/sda on /foo failed: Device or resource busy root 22:11:41 : ~ # mkdir /tmp/ .ICE-unix/ .Test-unix/ .X11-unix/ .XIM-unix/ .font-unix/ systemd-private-06b17f05a59e4559b18d3ec3b2ed7738-systemd-timesyncd.service-K9NiMk/ root 22:11:41 : ~ # mkdir /tmp/ .ICE-unix/ .Test-unix/ .X11-unix/ .XIM-unix/ .font-unix/ systemd-private-06b17f05a59e4559b18d3ec3b2ed7738-systemd-timesyncd.service-K9NiMk/ root 22:11:41 : ~ # mkdir /tmp/foo root 22:11:52 : ~ # mount /dev/sda /tmp/foo mount: mounting /dev/sda on /tmp/foo failed: Device or resource busy