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Home > Archive > Debian Developers > March 2004 > portmap & network filesystems in /etc/rcS.d
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portmap & network filesystems in /etc/rcS.d
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| Patrice Fortier 2004-03-15, 9:36 am |
| Hi,
I write this mail because I saw that on a debian, portmap (and networked
filesystems) where started in single user mode (boot single).
I must admit that I'm a bit surprised (well, very surprised  ), as
I always thought that single user mode was for a very minimalistic
configuration (ie: (almost) no services).
The current configuration means that even on "rescue" mode, portmap,
nfs mounts, samba mounts and netware mounts are launched. I find it
disturbing for a rescue mode (if something goes wrong with portmap or
nfs, you're fried).
Note that these services are started when syslog isn't even started
(and won't be started in boot single). Idem for klogd...
Does anybody know the reason for this?
Regards,
Patrice Fortier.
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| Miquel van Smoorenburg 2004-03-15, 2:35 pm |
| In article <1079355556.5346.56.camel@minas-tirith.u-bordeaux3.fr>,
Patrice Fortier <Patrice.Fortier@u-bordeaux3.fr> wrote:
>I write this mail because I saw that on a debian, portmap (and networked
>filesystems) where started in single user mode (boot single).
Correct - filesystems in /etc/fstab are mounted.
>I must admit that I'm a bit surprised (well, very surprised ), as
>I always thought that single user mode was for a very minimalistic
>configuration (ie: (almost) no services).
True.
>The current configuration means that even on "rescue" mode, portmap,
>nfs mounts, samba mounts and netware mounts are launched. I find it
>disturbing for a rescue mode (if something goes wrong with portmap or
>nfs, you're fried).
No, not in rescue mode. Only in single user mode, and yes, those are
different.
>Does anybody know the reason for this?
The basic idea is that you ONLY mount networked filesystems
through /etc/fstab if they are crucial for the initial booting.
E.g., /usr on NFS.
All other network filesystems should be mounted with automount,
so that they are mounted on demand instead of always.
So it's a local configuration issue.
Mike.
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| Marc Dequènes (Duck) 2004-03-15, 7:34 pm |
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| Patrice Fortier 2004-03-16, 11:38 am |
| Le lun 15/03/2004 à 17:47, Miquel van Smoorenburg a écrit :
> In article <1079355556.5346.56.camel@minas-tirith.u-bordeaux3.fr>,
> Patrice Fortier <Patrice.Fortier@u-bordeaux3.fr> wrote:
>
> Correct - filesystems in /etc/fstab are mounted.
>
>
> True.
>
> The basic idea is that you ONLY mount networked filesystems
> through /etc/fstab if they are crucial for the initial booting.
> E.g., /usr on NFS.
I'd be interested to know how many computers are in this case.
No server, no workstation, and even no diskless client is in this
case.
How do you install a debian on this kind of box? Is it a standard
install?
> All other network filesystems should be mounted with automount,
> so that they are mounted on demand instead of always.
Hum, so you assume that people use automount even for simple
nfs mounts (ie: /home)?
Even if I agree with you on the principle, I think the reality is
quite different .
For exemple I always exepected to see portmap started in
/etc/rc3.d/S1?portmap... ;o)
> So it's a local configuration issue.
Not really.
This is a local configuration issue for the _very few_ boxes mounting
/usr.
Diskless stations are not really concerned, and for the std workstations
or servers this is a problem:
I can't even see a good reason to have portmap and nfs/samba mounts
launched in boot single mode. Boot single is here to boot with _no_
network service started(*).
The syslog & klogd facilities aren't even started at this stage!
So, as the case you show is _very_ particular, maybe there is an other
(cleaner) way to solve it than starting portmap & disk mounts in boot
single (and making the portmap start an option btw )?
If this kind of box require a special install, we have at least a
starting point.
(*) As a sidenote, the LSB recommands that the network services should
be started in /etc/rc3.d/ (but debian doesn't make any difference
between run-levels 2-5, so /etc/rc2.d/).
Regards,
Patrice Fortier.
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