Registry details not preserved during distro export/import...

[mwarrenus]

Bug
WSL stores information about distros in the registry under HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Lxss\{your-distro-uuid}; however, wsl --import and wsl --export do not save/restore these keys. Can move-wsl preserve this information?

Example
After running the command line

wsl --export Alpine - | wsl --import Alpine1 e:\wsl\Alpine1 -

to quickly copy the Alpine distro, the new registry entry for the Alpine1 copy has only a minimal set of keys and its DefaultUid has been changed to 0 (root):

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Lxss\{your-alpine1-disto-uuid}]
"State"=dword:00000001
"DistributionName"="Alpine1"
"Version"=dword:00000002
"BasePath"="\\\\?\\E:\\wsl\\Alpine1"
"Flags"=dword:00000007
"DefaultUid"=dword:00000000

The original Alpine distro has more details including a KernelCommandLine and DefaultEnvironment as well as DefaultUid=dword:000003e8 (1000) (regular user):

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Lxss\{your-alpine-distro-uuid}]
"State"=dword:00000001
"DistributionName"="Alpine"
"Version"=dword:00000001
"BasePath"="C:\\Users\\YourUserName\\AppData\\Local\\Packages\\36828agowa338.AlpineWSL_my43bytk1c4nr\\LocalState"
"Flags"=dword:00000007
"DefaultUid"=dword:000003e8
"PackageFamilyName"="36828agowa338.AlpineWSL_my43bytk1c4nr"
"KernelCommandLine"="BOOT_IMAGE=/kernel init=/init"
"DefaultEnvironment"=hex(7):48,00,4f,00,53,00,54,00,54,00,59,00,50,00,45,00,3d,\
  00,78,00,38,00,36,00,5f,00,36,00,34,00,00,00,4c,00,41,00,4e,00,47,00,3d,00,\
  65,00,6e,00,5f,00,55,00,53,00,2e,00,55,00,54,00,46,00,2d,00,38,00,00,00,50,\
  00,41,00,54,00,48,00,3d,00,2f,00,75,00,73,00,72,00,2f,00,6c,00,6f,00,63,00,\
  61,00,6c,00,2f,00,73,00,62,00,69,00,6e,00,3a,00,2f,00,75,00,73,00,72,00,2f,\
  00,6c,00,6f,00,63,00,61,00,6c,00,2f,00,62,00,69,00,6e,00,3a,00,2f,00,75,00,\
  73,00,72,00,2f,00,73,00,62,00,69,00,6e,00,3a,00,2f,00,75,00,73,00,72,00,2f,\
  00,62,00,69,00,6e,00,3a,00,2f,00,73,00,62,00,69,00,6e,00,3a,00,2f,00,62,00,\
  69,00,6e,00,3a,00,2f,00,75,00,73,00,72,00,2f,00,67,00,61,00,6d,00,65,00,73,\
  00,3a,00,2f,00,75,00,73,00,72,00,2f,00,6c,00,6f,00,63,00,61,00,6c,00,2f,00,\
  67,00,61,00,6d,00,65,00,73,00,00,00,54,00,45,00,52,00,4d,00,3d,00,78,00,74,\
  00,65,00,72,00,6d,00,2d,00,32,00,35,00,36,00,63,00,6f,00,6c,00,6f,00,72,00,\
  00,00,00,00

--
ASCII version of DefaultEnvironment:
HOSTTYPE=x86_64
LANG=en_US.UTF-8
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games
TERM=xterm-256color

Issue #3974 from the microsoft/WSL repository has more details about how to workaround this issue in Powershell.

Script version:

• [ x ] Bash
• [ x ] Powershell
• [ x ] Batch

Edit: How to find values
These commands provide values for DefaultUid, KernelCommandLine, and DefaultEnvironment:

@echo off
SET WSL_NAME=%~1
wsl -d %WSL_NAME% -e id -u
wsl -d %WSL_NAME% -e cat /proc/cmdline
wsl -d %WSL_NAME% sh -c "env |  grep -v -E '^(PATH|NAME|HOME|USER|LOGNAME|SHELL|WSL_DISTRO_NAME|WSLENV|WT_SESSION|WT_PROFILE_ID|SHLVL|PWD|DSISPLAY|WSL_INTEROP|DISPLAY|WAYLAND_DISPLAY|PULSE_SERVER|_)='"
echo|set /p ="PATH="
wsl -d %WSL_NAME% sh -c "printenv PATH | sed 's/:\/mnt\/.*//g'"