Arch Linux

alomsimoy

Member

Registered: 2013-06-03

Posts: 10

USB HDD via 3.0 does not work after reboot

Hi!
I'm using Archlinux on a Dell Inspiron N5110.
I'm having problems with my external HDD. It works flawlessly, but when I have to reboot the system, it stops working. I have to unplug and plug it again to be able to mount it.
It wouldn't be a major problem if I wasn't using my laptop as a plex server. Today doing a system upgrade via ssh I had to reboot it because docker couldn't create bridged networks with a new installed kernel not applied yet, and after the reboot, the drive is gone.
I can't see it in 'lsblk' neither 'lsusb -t'.
The obvious solution is wait until coming home and do the replug, but it's annoying, and I feel that it should just work.
I don't know if it's related to the use of a USB 3.0 port. I'll try at home if a 2.0 port do the same.

Some outputs:

$ uname -r
4.20.7-arch1-1-ARCH
$ lsblk
NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0 111.8G  0 disk 
├─sda1   8:1    0   200M  0 part /boot
├─sda2   8:2    0    55G  0 part /
├─sda3   8:3    0    55G  0 part 
└─sda4   8:4    0   1.5G  0 part [SWAP]
sdb      8:16   0 931.5G  0 disk 
└─sdb1   8:17   0 931.5G  0 part /data
$ lsusb -t
/:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 5000M
/:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/8p, 480M
        |__ Port 2: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
        |__ Port 2: Dev 3, If 1, Class=Human Interface Device, Driver=usbhid, 1.5M
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 480M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M
        |__ Port 4: Dev 3, If 0, Class=Wireless, Driver=btusb, 12M
        |__ Port 4: Dev 3, If 1, Class=Wireless, Driver=btusb, 12M
        |__ Port 5: Dev 4, If 0, Class=Video, Driver=uvcvideo, 480M
        |__ Port 5: Dev 4, If 1, Class=Video, Driver=uvcvideo, 480M

Note: /dev/sdb is the internal drive. The usb one appears as /dev/sdc when it's working

I hope someone knows why is this happening. I'll be glad to post other logs that you could find useful.

Last edited by alomsimoy (2019-02-12 14:48:38)

mich41

Member

Registered: 2012-06-22

Posts: 796

Re: USB HDD via 3.0 does not work after reboot

Probably its happening because of a bug in device or USB controller firmware

Does the same happen if you shutdown and power up again? Maybe cold reboot would help, some PCs implement it quite faithfully by actually power-cycling the whole machine. Add reboot=cold to kernel parameters, reboot, check with cat /proc/cmdline if it has been applied and then reset again to see if the disk works right this time.