You would need at least one non-root/swap address mounted as /config or something for storing the configuration of what goes where, and you'd have to move at least a few of the utilities (eg mount, ifconfig, etc) from /usr to /sbin (generating statically linked versions) and include /sbin in the root filesystem.
Much as I dislike Solaris, their diskless workstation filesystem layout is a pretty good model for this. We should use that as a model for ideas. -- db David Boyes Sine Nomine Associates > -----Original Message----- > From: Linux on 390 Port [mailto:LINUX-390@;VM.MARIST.EDU]On Behalf Of > Kris Van Hees > Sent: Friday, November 08, 2002 11:00 AM > To: [EMAIL PROTECTED] > Subject: Re: More NSS Info > > > Would it not be sufficient to create the NSS with just the > boot disk and maybe > swap configured in on the kernel parameter line, and then > using something very > early on in the boot process to add the other disks using > /proc/dasd/devices? > It might take some work to get the NSS and RO boot disk just > right for this to > work, but it would make it a lot more flexible. > > Kris > > On Fri, Nov 08, 2002 at 10:43:15AM -0500, Adam Thornton wrote: > > I don't have the faintest idea why IBM claims that you have > to have an > > identical DASD layout on all machines that share an NSS. > > > > Admittedly cursory testing seems to show that your NSS will have > > whatever parameter line you burned into it, which does > specify a range > > of devices. But not only can those devices change size (I > tested this > > with an ext3 and a swap filesystem), if you boot without a listed > > device, the only problem you will have that I could find > was that you > > may trip over it in /etc/fstab. > > > > But if you have a disk that's not in /etc/fstab, which you > detach before > > IPL, you can re-link and then access that disk pefectly > normally from > > Linux (using the console or hcp to perform the link). > > > > So it's looking to *me* like you should pick a > lowest-common-denominator > > disk layout (for most of our guests, that'd be / on 150, > swap on VDISK > > on 151, and /usr on 152), build the NSS with as small a > storage size as > > you can (24M works for us) and then not worry about it. > > > > If anyone can tell me why I'm wrong, and that, although I > have mounted > > differently-sized disks, I'm heading for fatal filesystem corruption > > just around the corner, I'd appreciate it. > > > > Adam > > -- > Never underestimate a Mage with: > - the Intelligence to cast Magic Missile, > - the Constitution to survive the first hit, and > - the Dexterity to run fast enough to avoid being hit a second time. >
