[Borgbackup] borg fails (I/O Error, Errno 5) to backup second Windows system to USB hard drive

[Larry Johnson]

So I have two Windows 10 systems on separate disks/partitions.
When I use borg to backup System a (SDD) to a USB external HDD it works
fine.
When I use borg to backup System b (HDD) to the USB external HDD, I get
hundreds of errors before I cancel the job, similar to these:

/run/media/ljohnson/WIN_10b/Program
Files/WindowsApps/Microsoft.Office.OneNote_17.8730.20741.0_x64__8wekyb3d8bbwe/en-gb/locimages/offsym.ttf:
stat: [Errno 5] Input/output error: '/run/media/ljohnson/WIN_10b/Program
Files/WindowsApps/Microsoft.Office.OneNote_17.8730.20741.0_x64__8wekyb3d8bbwe/en-gb/locimages/offsym.ttf'

More output at:
https://pastebin.com/PvUd73DK

The disks look like this:

$ listblk    # (alias listblk='lsblk -o
NAME,SIZE,UUID,OWNER,GROUP,LABEL,MOUNTPOINT')
NAME     SIZE UUID                                 OWNER GROUP   LABEL
      MOUNTPOINT
sda    465.8G                                      root  disk

├─sda1  19.5G d7c05292-01fc-a6ac-9961-ef349991e2ac root  disk    arch_boot
      /boot
├─sda2  62.5G 5a1ca848-b27c-966c-8bb5-fb498991521a root  disk    arch_root
      /
├─sda3    16G cdb9e719-9cd1-47ed-911b-c6319b3c67a2 root  disk

├─sda4     1K                                      root  disk

├─sda5  29.3G 11251398-24ec-a7ed-7b81-29f22eb17943 root  disk    arch_adj

└─sda6 338.4G 6ff811c8-7f8d-9d83-14ac-059816ad4367 root  disk    arch_home
      /home
sdb    489.1G                                      root  disk

├─sdb1   500M E24CE6894CE65835                     root  disk    System
Reserved
└─sdb2 488.6G F2F6E76FF6E73311                     root  disk

sdd    931.5G                                      root  disk

└─sdd1 931.5G 406C7D256C7D173E                     root  disk    Win10aBU
     /run/media/ljohnson/Win10aBU
sde    931.5G                                      root  disk

├─sde1   500M F2B64D2CB64CF321                     root  disk    System
Reserved
└─sde2   931G 10D04EC2D04EAE32                     root  disk

 /run/media/ljohnson/WIN_10b


System a is on /dev/sdb and System b is on /dev/sde
The USB drive is /dev/sdd

$ ls -l /run/media/ljohnson/Win10aBU | grep borg
drwxrwxrwx 1 ljohnson users    4096 Nov 30 17:25 borgBU
drwxrwxrwx 1 ljohnson users     552 Nov 30 18:28 borgBUb

Backups of System a is on borgBU and System b was to have been on borgBUb
Running on archlinux x86_64 using fuse 3.2.0-1 and borg 1.1.2-2

The run command was:

$ borg create --stats --compression zlib,5
/run/media/ljohnson/Win10aBU/borgBUb::all /run/media/ljohnson/WIN_10b/

The ntfs partitions have adequate size and check out w/o errors…

$ df -h …
Filesystem      Size  Used Avail Use% Mounted on
/dev/sde2       932G  240G  692G  26% /run/media/ljohnson/WIN_10b
/dev/sdd1       932G  216G  717G  24% /run/media/ljohnson/Win10aBU

No problems accessing System b using file manager
from archlinux
.

I am very much at a loss to figure out what's not working, especially since
System a went so well... .. .
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