-----Original Message----- From: cobbler-boun...@lists.fedorahosted.org [mailto:cobbler-boun...@lists.fedorahosted.org] On Behalf Of David Lee Sent: Thursday, December 15, 2011 12:53 PM To: cobbler mailing list Subject: Re: redhat "rescue mode"?
Jörgen Maas wrote: > On Thu, Dec 15, 2011 at 6:23 PM, Mann, Owen > <owen.m...@interactivedata.com> wrote: >> My 2cents: I never had a problem with switching profiles. But I thought - >> and correct me if I'm wrong - rescue-mode for RHEL is just a matter of >> adding "rescue" to the " Kernel Options " field. >> > > You are right. > If that is right, then it is only partially right. It is sometimes (including our site) not right. Our cobbler set-up (2.0.11) has a couple of distros and a couple of profiles. In normal operation we explicitly add each and every system, and the network install goes straight through, without prompting for anything anywhere. That's good for normal re-install operations. But not for rescue! Putting "rescue" in the "Kernel Options" field doesn't seem to have any effect at all: it re-installs. Ouch! I've even tried (as a test) going to "/tftpboot/pxelinux.cfg/" and editing the file corresponding to the MAC address, changing "prompt 0" to "prompt 1", replacing most of "append initrd=..." so it only has the "initrd" clause and a "rescue". No... it still boots straight through (i.e. installs) and doesn't go to rescue and doesn't give any prompts. I see that the "kickstarts" directory contains a "pxerescue.ks". That looks promising. But if it is part of the answer, what are the missing parts of the answer? And where is the documentation that fully describes the complete answer? Could those voting against the proposed "--rescue-mode=true" provide a working, and tested, recipe of the steps to achieve this, please? Please, please, can we think "beginner"; think "simple"; think "documentation". Thanks. -- : David Lee : ECMWF (Data Handling System) : Shinfield Park : Reading RG2 9AX : Berkshire : : tel: +44-118-9499 362 : email: david....@ecmwf.int _______________________________________________ cobbler mailing list cobbler@lists.fedorahosted.org https://fedorahosted.org/mailman/listinfo/cobbler Hmm, this has always worked for me, in Cobbler 1.6.6 and 2.2.1. Rescue mode is described here: RHEL4: http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/4/html/Installation_Guides/rhel-ig-x8664-multi-en-4/ap-bootopts.html RHEL5: http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Installation_Guide/s1-rescuemode-boot.html RHEL6: http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Installation_Guide/ap-rescuemode.html#s1-rescuemode-boot Question: Are you using the Python tftp server, or the traditional one? Can you verify (via /proc/cmdline) that the kernel _is_ getting the "rescue" option? I'm not against your recommendation; but this method is both simple and documented. ******************************************************* This message (including any files transmitted with it) may contain confidential and/or proprietary information, is the property of Interactive Data Corporation and/or its subsidiaries, and is directed only to the addressee(s). If you are not the designated recipient or have reason to believe you received this message in error, please delete this message from your system and notify the sender immediately. An unintended recipient's disclosure, copying, distribution, or use of this message or any attachments is prohibited and may be unlawful. ******************************************************* _______________________________________________ cobbler mailing list cobbler@lists.fedorahosted.org https://fedorahosted.org/mailman/listinfo/cobbler
