It seems that if the device is handled by the usb-storage driver, TRIM
is as of this writing unsupported and likely to remain so.
usb/storage/scsiglue.c sets skip_vpd_pages to true,
source/drivers/scsi/sd.c will not query for the necessary block limits to
support discard if skip_vpd_pages is true
Correction to the above, that's the lsusb identification of the adapter.
lshw identifies it as
*-scsi
physical id: 1
bus info: usb@1:2.4
logical name: scsi0
*-disk
description: SCSI Disk
product: 2115
vendor: ASMT
TRIM is accessible via "hdparm --trim-sector-ranges" on a USB device
supporting ATA PASS THROUGH:
Device is an SSD in a USB 3.0 adapter identified in lshw as follows:
Bus 001 Device 005: ID 174c:55aa ASMedia Technology Inc. ASMedia 2105
SATA bridge
Adapter is hosting a 180GB Intel 530 M.2 NGFF S
Followup to the previous: disabling DDR50 and MIPI HSI in the BIOS did
not improve the situation. The errors persist and the installation
still aborts.
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I retract the latter part of comment #28, where I state that Ubuntu
14.04-2 is repeatably installable on this device. I have just
attempted reinstallation of Ubuntu 14.04-2 and it failed with repeated
block write errors. This indicates problems were present in the
earlier version and were not i
Christopher M. Penalver, for the installation source medium (live CD
iso) I am using a USB stick. If you mean installing to a USB stick as
the destination of the installed system, I have successfully installed
to a USB-connected SSD. The problem seems to be only when I try to
install to the built-
Christopher M. Penalver, reattempted per your request, comment #3.
Failed later in the process during grub-install, with much less error
logging in dmesg. Filed bug 1472830.
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Public bug reported:
Installing Lubuntu Vivid x86_64 live CD via USB
Voyo MiniPC Z3735F CPU with Samsung MCGAFB 64GB eMMC
Long before completion of file copying -- sometimes just during the
initial disk scan --a flood of errors will occur, ending the install
attempt.
Files attached, but the er
The MMC I/O errors as detailed in the bug description continue to occur
in Vivid. This prevents installation, and also will eventually occur
with any intensive write activity, for example if attempting to copy a
working system to the eMMC with rsync.
Voyo Minipc, wih Atom CPU Z3735F, and Samsung
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