Re: [CentOS] more kickstart - saving %pre decisions for %post
From: Alan McKay alan.mc...@gmail.com I thought of that but I don't want to mess up what I already have working with manipulating files in /etc But at least I can try it to see if this much works It did mess up all my /etc work, and did not work anyway I was talking about tmp... Not sure what the ks does with etc... Or maybe, if it exists, use the ramdisk (/dev/shm)... Will try that as well depending on results from above I just realised this means using /tmp, right? Which is what I tried first that did not work. No, it would be 'tmpfs' I guess. But I checked and I did not see it. I have this on my keys... and it works... %post --nochroot --interpreter /usr/bin/bash cp /tmp/ks_pre.log /mnt/sysimage/root/ cp /tmp/misc/ks_post.sh /mnt/sysimage/tmp/ks_post.sh Then, I got a shell in the chrooted environement and could find /root/ks_pre.log /tmp/ks_post.sh ... So it works for me... JD ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] more kickstart - saving %pre decisions for %post
From: Alan McKay alan.mc...@gmail.com How can I save answers to questions in %pre, for use in %post? I'm assuming (though have not yet tried) that variables won't live that long. Could I save them off to /tmp in a file, and retrieve them? Yes but post can be used 'chrooted' or 'non-chrooted'. So be sure to put it in the correct tmp... http://www.redhat.com/docs/manuals/enterprise/RHEL-5-manual/Installation_Guide-en-US/s1-kickstart2-postinstallconfig.html JD ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] more kickstart - saving %pre decisions for %post
Yes but post can be used 'chrooted' or 'non-chrooted'. So be sure to put it in the correct tmp... http://www.redhat.com/docs/manuals/enterprise/RHEL-5-manual/Installation_Guide-en-US/s1-kickstart2-postinstallconfig.html OK, will be trying that today. What I'm doing is coming up with a single install kickstart for all of our different types of box. It will ask you a few questions up front, and depending on what you answer, it will then do various configs in the post-install. e.g. either a web server, DB box, or a number of other choices. The reason I want to do it this way versus have a different kickstart for each type of box is that first of all it simplifies the install. but also because when you have different kickstart files you often have huge chunks of them that are the same between files, and if you change something in that chunk you have to go around to all the files to make the changes. I know there are other ways around that particular problem - but I like this way. -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of In Defense of Food ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] more kickstart - saving %pre decisions for %post
http://www.redhat.com/docs/manuals/enterprise/RHEL-5-manual/Installation_Guide-en-US/s1-kickstart2-postinstallconfig.html Hmmm, that link tells me surprisingly little. Can you give some specifics as to how I might accomplish this? -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of In Defense of Food ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] more kickstart - saving %pre decisions for %post
From: Alan McKay alan.mc...@gmail.com http://www.redhat.com/docs/manuals/enterprise/RHEL-5-manual/Installation_Guide-en-US/s1-kickstart2-postinstallconfig.html Hmmm, that link tells me surprisingly little. Can you give some specifics as to how I might accomplish this? It means, if you don't use -nochroot, the '/', when in post, will be '/mnt/sysimage'. If you do use -nochroot, the '/' will be '/'. So, if you want to access your kickstart pre data, either: - put it in '/tmp', use -nochroot and access it from '/tmp'. - put it in '/mnt/sysimage/tmp' and access it from '/tmp'. JD ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] more kickstart - saving %pre decisions for %post
On Wed, Jan 13, 2010 at 9:48 AM, John Doe jd...@yahoo.com wrote: It means, if you don't use -nochroot, the '/', when in post, will be '/mnt/sysimage'. If you do use -nochroot, the '/' will be '/'. Hmmm, that is behaving differently that what I see. I have never used --nochroot, and / is /. For quite some time now in %post I've been manipulating files in /etc and they are /etc/ after the new image boots. Or does --nochroot go in %pre? Not according to that link I guess -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of In Defense of Food ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] more kickstart - saving %pre decisions for %post
So speaking of things that do not work as advertised, my --log=/some/log/file is also not working, it seems In any case, here is what I tried. In %pre I do this : echo /tmp/foobar FOOBAR foo bar FOOBAR and then in %post I do : %post --log=/root/post-install.log if [ -f /tmp/foobar ] then cp /tmp/foobar /etc/foobar fi [ ... bunch of stuff ... ] # down here I manipulate all kinds of files in /etc and they # are there in the booted image So it seems that /tmp in %pre is not the same as /tmp in %post Any further advice on this? I suppose I could try mounting a network drive in %pre, copying the file out there, then mounting it again in %post an copying it back. But that is a lot of hackery if you ask me. ] -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of In Defense of Food ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] more kickstart - saving %pre decisions for %post
From: Alan McKay alan.mc...@gmail.com On Wed, Jan 13, 2010 at 9:48 AM, John Doe wrote: It means, if you don't use -nochroot, the '/', when in post, will be '/mnt/sysimage'. If you do use -nochroot, the '/' will be '/'. Hmmm, that is behaving differently that what I see. I have never used --nochroot, and / is /. For quite some time now in %post I've been manipulating files in /etc and they are /etc/ after the new image boots. Or does --nochroot go in %pre? Not according to that link I guess Try this: in %pre, put in /tmp/foo Then, use %post with -nochroot and check if /tmp/foo exists Or maybe, if it exists, use the ramdisk (/dev/shm)... JD ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] more kickstart - saving %pre decisions for %post
On Wed, Jan 13, 2010 at 11:53 AM, John Doe jd...@yahoo.com wrote: Try this: in %pre, put in /tmp/foo Then, use %post with -nochroot and check if /tmp/foo exists I thought of that but I don't want to mess up what I already have working with manipulating files in /etc But at least I can try it to see if this much works Or maybe, if it exists, use the ramdisk (/dev/shm)... Will try that as well depending on results from above -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of In Defense of Food ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] more kickstart - saving %pre decisions for %post
I thought of that but I don't want to mess up what I already have working with manipulating files in /etc But at least I can try it to see if this much works It did mess up all my /etc work, and did not work anyway Or maybe, if it exists, use the ramdisk (/dev/shm)... Will try that as well depending on results from above I just realised this means using /tmp, right? Which is what I tried first that did not work. Looks like my next option is NFS ... hacky, but it seems to be my last option. -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of In Defense of Food ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] more kickstart - saving %pre decisions for %post
OK, NFS seems to work so that's my path forward I guess. Hacky, but works -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of In Defense of Food ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] more kickstart - saving %pre decisions for %post
Oh, one caveat for anyone who stumbles upon this - in %pre you do not need to start nfs but in %post you do, otherwise it will not work. /etc/init.d/netfs start -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of In Defense of Food ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] more kickstart - saving %pre decisions for %post
On 1/13/2010 1:51 PM, Alan McKay wrote: Oh, one caveat for anyone who stumbles upon this - in %pre you do not need to start nfs but in %post you do, otherwise it will not work. /etc/init.d/netfs start Are you considering only an initial install or also subsequent updates or potential installs that weren't part of the initial set? -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] more kickstart - saving %pre decisions for %post
On Wed, Jan 13, 2010 at 3:05 PM, Les Mikesell lesmikes...@gmail.com wrote: Are you considering only an initial install or also subsequent updates or potential installs that weren't part of the initial set? I don't quite understand the question. I'm just doing an initial install at the moment. -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of In Defense of Food ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] more kickstart - saving %pre decisions for %post
On 1/13/2010 2:14 PM, Alan McKay wrote: On Wed, Jan 13, 2010 at 3:05 PM, Les Mikeselllesmikes...@gmail.com wrote: Are you considering only an initial install or also subsequent updates or potential installs that weren't part of the initial set? I don't quite understand the question. I'm just doing an initial install at the moment. Never mind - I thought those were RPM items instead of kickstart. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] more kickstart - saving %pre decisions for %post
Hey again folks, How can I save answers to questions in %pre, for use in %post? I'm assuming (though have not yet tried) that variables won't live that long. Could I save them off to /tmp in a file, and retrieve them? e.g. %pre echo VARNAME=$VARNAME /tmp/varfile %post grep ^VARNAME= /tmp/varile Or some such ... -- “Don't eat anything you've ever seen advertised on TV” - Michael Pollan, author of In Defense of Food ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] more kickstart - saving %pre decisions for %post
On Tue, 2010-01-12 at 17:42 -0500, Alan McKay wrote: Hey again folks, How can I save answers to questions in %pre, for use in %post? I'm assuming (though have not yet tried) that variables won't live that long. Could I save them off to /tmp in a file, and retrieve them? e.g. %pre echo VARNAME=$VARNAME /tmp/varfile %post grep ^VARNAME= /tmp/varile Or some such ... --- Never used %pre or how that part really functions but where is the temp file stored, ram ? Why not store it in memory registers or I have your idea wrong? John ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
