Issue:
I installed Manjaro on Samsung Portable SSD T5. The SSD is connect to iMac (Retina 5K, 27-inch, 2019) according USB3.1 Gen 2 interface. After update, The system unable to boot (kernel 5.4, 5.10).
lsusb didn’t show the Portable SSD:
# lsusb
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 002: ID 0781:5581 SanDisk Corp. Ultra
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 05ac:026c Apple, Inc. Magic Keyboard with Numeric Keypad
Bus 001 Device 004: ID 05ac:8511 Apple, Inc. FaceTime HD Camera (Built-in)
Bus 001 Device 003: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
But lsusb -v can found:
# lsusb -v
Bus 004 Device 002: ID 04e8:61f5 Samsung Electronics Co., Ltd Portable SSD T5
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 002: ID 0781:5581 SanDisk Corp. Ultra
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 05ac:026c Apple, Inc. Magic Keyboard with Numeric Keypad
Bus 001 Device 004: ID 05ac:8511 Apple, Inc. FaceTime HD Camera (Built-in)
Bus 001 Device 003: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
The issue was found on from the stable-update-2021-06-14. Till current update, the issue still not resolved.