Question: Is there any detailed description of the utopious shadowfs yet? Or is it only a vague "Would be a neat thing if we had some thing like..."?
If there is none, the first thing to happen should be that someone puts a *complete* description together before anyone starts coding on it. Some things that should be added to the to-be-considered list: * File permissions (relatively easy) * Directory permissions (not that easy) * What about deletion of files? If I have a read-only base filesystem and a read-write filesystem mounted on top of it, the result should behave just like a ordinary read-write system. So I should be able to delete files and directories. How should that be marked in a straight-forward way? On Fri, May 12, 2000 at 10:53:26AM +0300, Kalle Olavi Niemitalo wrote: > Tomasz Wegrzanowski <[EMAIL PROTECTED]> writes: > > > Am I very wrong > > or readonly shadowfs > > needs only to check, upon open request, > > if file exist on first fs > > if not, if on the next one, etc, > > and if yes forward everything to good fs > > and if not return simple error ??? > > If the file is actually a directory, shadowfs should open > directories with that name in all many file systems it can, and > set up a nested shadowfs. Symlinks to directories should be left > as symlinks; if the shadowfs showed them as directories, its > clients could get in infinite loops. > > Hmmh -- what happens if the user: > > - creates directories ~/1 and ~/2 and sets up sets up a shadowfs > ~/shadow which merges them > > - creates a directory ~/1/dir > > - changes directory to ~/shadow/dir: This should give him either > a reparented ~/1/dir or a shadowfs which forwards to it. > > - creates a directory ~/2/dir and then a file ~/2/dir/file > > - attempts to open file in the current directory (~/shadow/dir): > Can this be made to work? The shadowfs doesn't have a port to > ~/2/dir yet -- it would have to notice that ~/2/dir was created > after ~/shadow/dir was opened. <hurd/fs.defs> has a routine > dir_notice_changes; would the shadowfs have to use that? > > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] > -- -- ______________________________________________________ -- JESUS CHRIST IS LORD! -- To Him, even that machine here has to obey... -- -- _________________________________Norbert "Nobbi" Nemec -- Hindenburgstr. 44 ... D-91054 Erlangen ... Germany -- eMail: <[EMAIL PROTECTED]> Tel: +49-(0)-9131-204180
