The problem is that deepin trys to mount the cd rom but you use an usb-dngle. Did you use the usb media creator or something elese?

I used a Linux application called 'Disks' on elementary. It has a restore function and the .iso is written to the usb key,hdd,sd card etc.
The odd thing is it makes it through most of the installation. Also when mounted on safe mode the OS works perfectly.
Should I then try to use the usb media creator from within deepin to create another usb installer?

Thanks for the reply

You should gave it a try

I tried with the deepin boot maker and this also fails with the error:
Debug: :0 "df" "--output=avail /media/deepin/DEEPINOS" "" true ""
Warning: :0 DiskFull
Warning: :0 "USB flash drive space is insufficient, ensure you have at least %1 free space."
Debug: :0 2
Debug: :0 to Failed



Its a 64Gb usb key and I selected the format drive option from the deepin boot maker interface.  I have a msata ssd that I would like to install deepin but I cant seem to get past these errors. The bootmaker said it was 95% complete at the point it failed.

And a different error when i try to install to the msata drive:
Reading Package Indexes... Done
Writing new source list
Source list entries for this disc are:
deb cdrom:[\F0\AC\94\A0\85\F7\AF*\F6yV\00\E4Ar%\E2_\B7{\D3:~\DBD\CE*y\84\C9_\FA\8F\EF\80\FBw\815\B7\D5]/ unstable main
Repeat this process for the rest of the CDs in your set.
+ apt-get update
E: Malformed entry 6 in list file /etc/apt/sources.list (URI)
E: The list of sources could not be read.
** Message: [run_one_by_one]


** (deepin-installer:5722): WARNING **: [run_one_by_one] run hook(/tmp/hooks/in_chroot/02-setup-cdrom-repository.job) failed: Child process exited with code 100

** Message: [installer_terminate]

I have tried several ways to install deepin with a second downloaded image file. Each time it fails with a different error message.  Is deepin still being tested on this release?

The latest log error is below. Any insight would be most welcome. I have run out of ideas to get it to install.
++ CDROM=/lib/live/mount/medium
++ DI_LUPIN_ROOT=/lib/live/mount/findiso
+ L=en_US
+ declare -i MEM
++ awk '/^MemFree:/ {mem_free=$2} /^Buffers:/ {meme_free+=$2} /^Cacheed:/ {mem_free+=$2} END{print mem_free}' /proc/meminfo
+ MEM=14363108
+ '[' x = xunsquashfs ']'
+ '[' x = xfallback ']'
+ MEM=0
+ '[' 0 -le 3000000 ']'
+ echo '[Info] Detect free memory less than 3G'
[Info] Detect free memory less than 3G
+ ./extract_base_filesystem --lang en_US --live live
mount: /dev/loop1 is write-protected, mounting read-only
Detect source folder /var/lib/deepin-installer/source
Traceback (most recent call last):
  File "./extract_base_filesystem", line 427, in
    install.run()
  File "./extract_base_filesystem", line 411, in run
    raise InstallError("Copy file failed, Install failed")
__main__.InstallError: Copy file failed, Install failed
+ exit 1
** Message: [run_one_by_one]


** (deepin-installer:2307): WARNING **: [run_one_by_one] run hook(/usr/share/deepin-installer/hooks/before_chroot/21-extract-base-filesystem.job) failed: Child process exited with code 1

** Message: [installer_terminate]