My first thought would be if you're still specifying your original kickstart, that's interfering with rescue mode, or some other kernel option conflicts.
Not sure I've ever seen this red countdown screen. Are you talking about graphical install mode? On Fri, Dec 16, 2011 at 4:48 AM, David Lee <[email protected]> wrote: > Michael DeHaan wrote: >> >> [...] >> >> This reads a bit negatively, as nobody's failing to think here. Cobbler >> covers a wide variety of audiences. There are people using it in home >> labs, up to systems with 50k+ nodes in distributed data centers all over the >> world. A lot of what Cobbler does is totally about making things simpler >> and easier to use -- it's the whole reason the project initially existed. >> This is the whole reason for automation. The documentation and help needs >> for everyone are going to be different, its not just a linear skill level >> thing, somebody may not know X while someone may not know Y. In many >> cases, it's not even something Cobbler related… if you've got an Anaconda or >> pressed problem, for instance, that's really not Cobbler's problem at all. >> (now, if rescue changes to "rescueplease" in Centos 12, we have some work to >> do) > > > Firstly my apologies for getting a bit irked about this. I'm banging ny > head on a wall here, because something, somewhere isn't working for us, and > I (still) cannot figure out what it is. Put that another way: I still > haven't found the documentation that points me in the right direction to be > able to help myself. > > > > >> If something is missing, it's not because we're not thinking of a beginner >> audience (or not thinking), it's because we probably thought something was >> obvious to most people like us. Ergo, the best person to fix an unclear >> section of documentation is the person figuring it out (by asking here, IRC, >> and elsewhere) and then updating the documentation yourself. The fact that >> cobbler has an option for automating rescue mode at all (or did, this is >> mostly discussion about a regression) is a sign it's trying to make things >> simple. > > > Re "updating the docuemntation [my]self": that's fine. In fact, if you take > a look at the wiki, you'll see I've been quite active in the last couple of > days! > > But with this current issue I seem to be in a "chicken or egg" problem: I > can't find any documentation (whether good or not-so-good) to point me down > a self-help route both towards my own issue and then towards my feeding back > into improving the documentation. > > > >> So anyway, there are two problems -- one that rescue as a kernel option >> doesn't work for you, another that we don't create rescue profiles right now >> due to a regression, and we could fix it in one of two ways. For that, >> I'll take a patch for either, though if we get a patch for >> --rescue-mode=true, that one will win, because I like not having to remember >> what the original profile was. > > > Joergen has made some interesting comments along the way, which have been a > great help and have actually changed my thinking. > > If I understand correctly, he points out that "rescue mode" is highly > OS-specific, and he questions whether this is scalable and whether it is > philosophically the right approach. And I'm beginning to see his point of > view. > > (Indeed, I've always been keen on portability. My previous contributions to > Samba (quota, VxFS) and to Linux-HA/heartbeat have been in just this same > arena of portability!) > > So while my immediate issue is wanting to get my Redhat box in rescue mode, > I can now see that having a "cobbler system edit ... rescue" may not be the > most appropriate way to achieve this. (I'm not necessarily backing off my > request; but i recognise that this is not as clear-cut as I had originally > thought.) > > > Perhaps it might be better if I re-cast my end-user query another way: > > <query> > Our Cobbler set-up, with RHEL clients, lists every system. When these > install, the installation goes straight through, uninterrupted. But we also > wish to use this Cobbler set-up occasionally on particular systems so that > the PXE-boot puts us, in a quasi-DVD-like manner, into the usual red screen > which would allow us to select rescue mode. > > Starting from this Cobbler set-up, what hooks, tweaks and changes do we need > to employ to achieve this? > > P.S. If this isn't in the existing wiki documentation, I would be happy to > write it up. > </query> > > Note that our existing Cobbler set-up takes the client installation through > to completion uninterrupted, /without/ presenting the usual red countdown > screen and boot prompt. > > A good start for me would simply to be able to get it to give me that boot > prompt. (Although I suspect that further work may still be necessary.) > > Michael Mann helpfully provided the link: > > http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Installation_Guide/s1-rescuemode-boot.html > > But that's all about "when you get to the boot prompt...". My initial > stumbling block problem is that our existing Cobbler set-up doesn't give me > such a prompt. > > Have I missed a Cobbler setting (or perhaps a kickstart detail?) that would > toggle this give/hide boot-prompt? > > > > -- > : David Lee > : ECMWF (Data Handling System) > : Shinfield Park > : Reading RG2 9AX > : Berkshire > : > : tel: +44-118-9499 362 > : email: [email protected] _______________________________________________ cobbler mailing list [email protected] https://fedorahosted.org/mailman/listinfo/cobbler
