On Tuesday 05 April 2005 19:01, Jan Rychter wrote: > > Blaisorblade wrote: > > > On Sunday 03 April 2005 13:48, Jan Rychter wrote: > > > > I used UML successfully in the past and recently I've tried to revive > > > > my UML installation. Unfortunately, I've run into a range of problems > > > > (updates required for newer host kernels, non-working hostfs, etc). > > > > > > > > I am now at a stage where I have linux-2.4.27 patched with > > > > uml-2.4.27-bs2-pre7.patch and a host 2.6.10 patched with > > > > skas3-v8-rc5. > > > > > > > > The issue I have is that hostfs doesn't work they way I want it to. > > > > What I get is all hostfs files owned by root:root. > > > > > > > > The semantics I'd like to see are: > > > > > > > > -- uid:gid mapping of 1:1 between the host and uml, > > > > > > > > -- normal permission checks done on the host for requests done by > > > > uml. > > > > > > This is the normal situation, but there are some rare exception (i.e. > > > when you boot from hostfs as rootfs, instead of using one UBD). So, > > > please describe exactly your setup (UML command line and boot messages, > > > mount command, and so on). > > > > > > Are you using hostfs as your rootfs? From what you say it seems not, > > > but the behaviour you see has been explicitly coded for that case. > > > > No, I am not using it as my rootfs. The semantics that I'd like to > > achieve are similar to an NFS-mounted /home filesystem, except that only > > the user running the UML should have access to his files. > > > > I mount the hostfs via the fstab entry: > > > > none /home hostfs /home,rw 0 0 > > > > ... which gets me all files owned by root. What I'd like to have is > > either a full /home or a /home/jwr (my $HOME). As user 501 (my uid) > > inside UML I should be able to access files on the host beloging to uid > > 501, assuming that UML runs under uid 501. > > So, is this mapping of ownership of all files to root in hostfs a bug or > a feature? It's a bug. And I'm seeing some others one here, in the local tree. > Is there any other information that I should supply? Try with 2.4.27-bs1. And tell me if you see any difference. -- Paolo Giarrusso, aka Blaisorblade Linux registered user n. 292729 http://www.user-mode-linux.org/~blaisorblade
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