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_posts/2020-06-16-a-solution-to-io-errors-on-usb3-external-hdd-enclosures.md

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+---
+title: A solution to I/O errors on some external USB 3 HDD enclosures
+tags: [HDD, USB 3, error, I/O, UAS, USB]
+updated: 2020-06-16 16:51
+description: How to solve I/O errors on some external USB 3 HDD enclosures
+---
+
+<!--excerpt_start-->
+I bought several [Inatek fe 3001](https://www.inateck.com/inateck-fe3001-aluminum-3-5-usb-3-0-superspeed-hdd-external-enclosure.html)
+USB HDD enclosures for my backups.
+<!--excerpt_end-->
+
+This model is reported like this by `$ lsusb`:
+
+    ID 174c:55aa ASMedia Technology Inc. Name: ASM1051E SATA 6Gb/s bridge, ASM1053E SATA 6Gb/s bridge, ASM1153 SATA 3Gb/s bridge, ASM1153E SATA 6Gb/s bridge
+
+Suddenly I got `read error from input device (I/O error)` from `$ dmesg` and then the filesystem unmounted automatically.
+
+I tried:
+
+- remounting the filesystem
+- swapping cables
+- swapping enclosures 
+- formatting the hard drives with a different filesystem,
+
+Nohing worked.
+
+Apparently, to get the thing working, you must disable [UAS (USB Attached SCSI)](https://en.wikipedia.org/wiki/USB_Attached_SCSI) for this particular chipset.
+
+## Solution
+
+If you use Syslinux as the bootloader and certain kernels:
+
+1. add the following kernel parameter to the `APPEND` line in `/boot/syslinux/syslinux.cfg`:
+ 
+       usb-storage.quirks=174c:55aa:u
+
+2. reboot
+3. run `$ lsusb -t` and check that the `Driver` entry now reads `usb-storage` instead of `uas`
+
+This works for example with Parabola GNU/Linux-libre.
+
+Some websites say to blacklist the module within `/etc/modprobe.d`. That depends on your kernel.
+
+## References
+
+- [Stack Exchange](https://unix.stackexchange.com/questions/239782/connection-problem-with-usb3-external-storage-on-linux-uas-driver-problem)
+- [Ubuntu Forums](https://ubuntuforums.org/showthread.php?t=2307662)
+- [Stack Exchange](https://unix.stackexchange.com/questions/441668/debian-usb3-hdd-uas-i-o-errors/441772#441772)
+- [Reddit](https://www.reddit.com/r/archlinux/comments/4rf3ey/uasp_usb_30_to_sata_iii_ssd_enclosures_that_work/)
+- [linux-sunxi.org](https://linux-sunxi.org/USB/UAS#UASP_capable_chipsets_in_disk_enclosures)
+- [Blacklist](https://github.com/geraldvillorente/blacklist-uas/blob/master/bin)
+- [Arch Wiki](https://wiki.archlinux.org/index.php/Kernel_parameters)
+- [Raspberry PI forum](https://www.raspberrypi.org/forums/viewtopic.php?t=237829)
+- [Launchpad](https://bugs.launchpad.net/ubuntu/+source/linux/+bug/868233)
+- [bugzilla.kernel.org](https://bugzilla.kernel.org/show_bug.cgi?id=79511)
+- [Gentoo Forum](https://forums.gentoo.org/viewtopic-t-1040382-start-0.html)
+