On Thu, Nov 26, 2020 at 8:42 PM Henry S. Thompson <h...@inf.ed.ac.uk> wrote: > > Oleksandr Gavenko via Cygwin writes: > > > ... > > WSL1 files are "hidden" for regular access. > > I probably misunderstand, but I can see my WSL/Ubuntu files via this > path from Cygwin: > > /c/Users/ht/AppData/Local/Packages/CanonicalGroupLimited.../LocalState/rootfs > You are not allowed to edit them from the "Windows" process. Only from LXSS:
https://devblogs.microsoft.com/commandline/do-not-change-linux-files-using-windows-apps-and-tools/ > DO NOT, under ANY circumstances, access, create, and/or modify Linux files > inside > of your `%LOCALAPPDATA%` folder using Windows apps, tools, scripts, consoles, > etc. You'll face: https://github.com/microsoft/WSL/issues/1524 changes made in Windows File System - not seen in Bash Though I forgot about their announce of P9 fileserver (dated May 2019 Windows 10 version 1903): > WSL hosts a new 9P fileserver, which exposes distro filesystems to Windows > apps and tools via \\wsl$\<DistroName>\! Details are here: https://devblogs.microsoft.com/commandline/whats-new-for-wsl-in-windows-10-version-1903/ I tried in elevated cmd: cmd# cd \\wsl$\debian\ '\\wsl$\debian\' CMD does not support UNC paths as current directories. cmd# net use x: \\wsl$\debian\ System error 67 has occurred. The network name cannot be found. It is only available in Explorer and some "cool" editors, like Code. I do not know if Cygwin allows to "mount" that P9 fileserver... There is an example of network mounting: https://cygwin.com/cygwin-ug-net/mount.html so I tried it: bash# mount '//wsl$/debian' /mnt mount: defaulting to 'notexec' mount option for speed since native path references a remote share. Use '-f' option to override. bash# ls /mnt ls: cannot access '/mnt/initrd.img': Input/output error ls: cannot access '/mnt/initrd.img.old': Input/output error ls: cannot access '/mnt/vmlinuz': Input/output error ls: cannot access '/mnt/vmlinuz.old': Input/output error bin boot c d dev etc home init initrd.img initrd.img.old lib lib64 media mnt opt proc root run sbin srv sys tmp usr var vmlinuz vmlinuz.old Cool! Let's make it permanent. $ cat /etc/fstab //wsl$/debian /wsl/debian ntfs binary,noacl,posix=0 0 0 //wsl$/ubuntu /wsl/ubuntu ntfs binary,noacl,posix=0 0 0 //wsl$/alpine /wsl/alpine ntfs binary,noacl,posix=0 0 0 $ mkdir -p /wsl/{ubuntu,debian,alpine} $ mount /wsl/debian $ mount /wsl/ubuntu $ mount /wsl/wsl And the final step it testing with Cygwin's Emacs W32: I can read files, but on save I've got: Saving file /wsl/debian/opt/sa-batch-am-dbsync/run.env... basic-save-buffer-2: Unlocking file: Invalid argument, /wsl/debian/opt/sa-batch-am-dbsync/run.env Trying in Cygwin's bash: bash# cd /wsl/debian/home/user/ bash# touch test.txt bash# ls -l test.txt -rw-r--r-- 1 user user 0 2020-11-26 21:18 test.txt bash# echo 123 >test.txt bash# echo 456 >>test.txt bash# cat test.txt 123 456 So Emacs tries to make some "smart" locking on dumb FS... Need to waste another few hours to make Emacs work. At least I have something! -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
