[PVE-User] md installer?

[Adam Hunt]

My understanding was that PVE does not now and will never in the future
support the softraid capabilities of Linux. If RAID is wanted than the only
option is old-school hardware RAID.


On Thu, Jul 4, 2013 at 5:29 AM, Paul Gray <gray at cs.uni.edu> wrote:

> On 07/04/2013 06:30 AM, Paul Gray wrote:
> > I think, I may be wrong, that the Barebone Installer is not customizable
> at all, and won't be.
>
> The installer is configurable to the extent that any distribution's
> installer iso is configurable.  You just need to know where the
> installation components are and how they interact.
>
> The origin of my question to the list arises from the hints of md
> support already in the places within the installation.
>
> After ISOLINUX expands the initrd and finds its proxmox iso image, the
> init script invokes /sbin/unconfigured.sh on the ISO mount.
>
> In the final acts of /sbin/unconfigured.sh, there's a commented-out line
> to shut off md device md0, indicating that there was once a time when it
> was enabled.
>
> But there's quite a bit more: For example, after proxmox finds the
> installation media and starts up X, the installation contiues from
> openbox/.xinitrc to invoke /usr/bin/proxinstall.
>
> Within the /usr/bin/proxinstall script, one finds this code in the
> probing for disks:
>
>     foreach my $hd (@$hds) {
>         my ($disk, $devname) = @$hd;
>         next if $devname =~ m|^/dev/md\d+$|;
>         print "found Disk$disk N:$devname\n";
>     }
>
> So the installer is specifically excluding md devices when looking for
> disks.
>
> Naturally this begs the question of what would happen if one added
> modprobe's for md raid support (right after the modprobe of dm_mod in
> unconfigured.sh), removed the "next if..." line in the proxinstall
> script above, reconstituted the ISO, and booted it up to "see what
> happens."
>
> It seems that someone else had probably already done this.  If no one
> else has done it then it's likely someone would be willing to offer
> advice on why enabling support for md devices would be "a bad thing(tm)"
> or at least offer some insight as to why md devices are specifically
> avoided in the present installer.
>
> --
> Paul Gray                                         -o)
> 314 East Gym, Dept. of Computer Science           /\\
> University of Northern Iowa                      _\_V
>  Message void if penguin violated ...  Don't mess with the penguin
>  No one says, "Hey, I can't read that ASCII attachment ya sent me."
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