On Wed, 28 Jun 2023, UMR IBIMA Sekretariat wrote:
I hope to obtain advice, using Alpine in a Parallels virtual machine,
running MacOS inside MacOS.
All software versions are the most recent ones; fresh installations as of
June 2023.
- MacOS runs in a virtual machine (VM) using Parallels desktop on
MacOS (MacOS is also the host system)
- Alpine is running in the VM
- Configuration/sent mails/received mails of Alpine should be stored
in the host system. For this a shared network folder was created in the
host system and connected to the VM.
- Files and folders like ".pinerc" and "mail" should be a symlink to
the shared network folder.
Example:
- Mounted network folder is "/Volumes/HostShared"
- "/home/username/.pinerc" is symlink to
"/Volumes/HostShared/Alpine/.pinerc"
- "/home/username/mail" is symlink to
"/Volumes/HostShared/Alpine/mail"
- other files/folders belonging to Alpine are symlinked as just
mentioned.
I see no mention of username in the symlink target.
Should I assume that the client machine only has one user ?
(I assume you aren't confusing the system directory of mailboxes with
the user's directory of mail folders).
Does alpine run with an particular group id, or setgid or similar ?
IIRC MacOS/HFS+ has a wider user/group/permission system than
"standard" unix.
ACLs or Mandatory access control (MAC) could also be relevant.
Is *mounting* the mail folder at /home/username/mail (rather
than using a symlink) an option ?
There could be other problems with this - on Linux it would break snaps
- but it might make a difference.
Problems discovered during testing:
- Alpine takes a long time trying to save sent messages and then
fails.
Could that be a locking issue ?
- Alpine refuses to write to .pinerc as it is not located in the home
directory.
Not sure about thus, but if alpine updates by making a new file and mv'ing
it over the old one, it would be tricky to fix.
- Yet if files are manually copied to the network folder (by using the
symlinks) everything goes fast and as expected.
That suggests to me that some part of user/group/permission is correct,
but that some part of permissions/ACL/MAC could be different for alpine.
Q.: What could be done to make Alpine work?
Thanks a lot in advance!
>
A. Brauer
--
Andrew C. Aitchison Kendal, UK
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