[BProc] Re: Node partitions and permissions

[Miguel D. C. <mc...@fc...>]

Hello again.

Regarding my first question, and in case anyone else is having the same
problem, I just saw that it's bjs that's changing the node permissions,
in routine bjs_clean_node.

In bjs.c,

void bjs_clean_node(int node) {
    int i, nprocs;
    struct bproc_proc_info_t *plist;
    bproc_chown(node, 0);
    bproc_chgrp(node, 0);
    bproc_chmod(node, 0100);

Changing this last line to "bproc_chmod(node, 0111);" does the trick.

miguel


>=20
> Message: 1
> From: Miguel Costa <mc...@fc...>
> To: Bproc mailing list <bpr...@li...>
> Organization: Centro de F=EDsica do Porto
> Date: 04 Mar 2003 17:09:38 +0000
> Subject: [BProc] Node partitions and permissions
>=20
> Hello all.
>=20
> I was just asked to install a small cluster of 3 Dual Athlon machines
> so
> I took another shot at Clustermatic - I'm still running Scyld on
> another
> cluster but I'm close to leaving it - ( I can quit any time I want to,
> really :) ).
>=20
> Now, the cluster is up and running but I have two problems:
>=20
> first, although the documentation says that when the nodes are "up"
> the
> permissions are set to execute for all, they are only execute for user
> -
> I have to run bpctl -S all -m 111 manually. It doesn't work to add
> this
> to /etc/beowulf/node_up because the node status is still "boot" at
> this
> point, I guess. I took a look at master.c and it seems to me that the
> node_up_result routine, which sets node status to "up", is setting the
> right permissions (S_IXUSR | S_IXGRP | S_IXOTH), so what is changing
> them back?
>=20
> the second problem is mounting node partitions: I can't get swap to
> work
> but beoboot's setupfs.c says this is on the todo list. However,
> mounting
> a ext2 or ext3 partition also fails, without explanation on the logs.
> /home is nfs mounted from the server, so I just wanted to know if
> setupfs is broken or I'm still doing something wrong.
>=20
> Gotta take a look at bjs, now :)
>=20
> Miguel




--=20
Miguel Dias Costa <mc...@fc...>
Centro de F=EDsica do Porto