Re: SW_RAID in 3.x
Hi, On Wednesday 22 August 2007 18:57, martin f krafft wrote: > > 1. Just copy the configuration from 2.10 (minus the mkinitrd script), > > 2. download new versions from the wiki, or > > 3. avoid software raid? > 4. Use the hook on the wiki to create the arrays, make sure to >install mdadm, a Debian kernel image and initramfs-tools on the >clients, and it should all work. 5. in case of success: split the wiki page in two: once for sarge and new, for etch :-) regards & thanks to whoever does this, Holger pgp2WZ4ytSCgN.pgp Description: PGP signature
long-time missing FAI questionnaire finally added
Hi, a new FAI questionnaire which was missing since the very beginning of FAI was now filled out and added to http://www.informatik.uni-koeln.de/fai/q-answers.html#mrfai It may be interesting for you. -- regards Thomas
Re: SW_RAID in 3.x
also sprach Per Foreby <[EMAIL PROTECTED]> [2007.08.22.1819 +0200]: > 1. Just copy the configuration from 2.10 (minus the mkinitrd script), > 2. download new versions from the wiki, or > 3. avoid software raid? 4. Use the hook on the wiki to create the arrays, make sure to install mdadm, a Debian kernel image and initramfs-tools on the clients, and it should all work. -- martin; (greetings from the heart of the sun.) \ echo mailto: !#^."<*>"|tr "<*> mailto:"; [EMAIL PROTECTED] "it isn't pollution that's harming the environment. it's the impurities in our air and water that are doing it." - dan quayle spamtraps: [EMAIL PROTECTED] digital_signature_gpg.asc Description: Digital signature (see http://martin-krafft.net/gpg/)
SW_RAID in 3.x
I have a few computers using raid1, and in 2.10 I used the tricks at http://faiwiki.informatik.uni-koeln.de/index.php/User:Svamberg/Software_RAID. In addition to this, I had to run mkinitrd and create mdadm.conf in a script. Since sarge there has been some changes in software raid, making mdadm.conf mandatory, which makes me wonder about the status of the wiki page: 1. Just copy the configuration from 2.10 (minus the mkinitrd script), 2. download new versions from the wiki, or 3. avoid software raid? /Per
Re: FAI 3.2 released
On Wed, 22 Aug 2007, Thomas Lange wrote: Then root-path is not needed in dhcpd.conf. Not needed, but conveniant since make-fai-bootfloppy doesn't add the nfsroot parameter by default. > By the way, why does burniso() in fai-cd use cdrecord? Shouldn't it be > wodim these days? As long as cdrecord is a link to wodim, I prefer to call cdrecord, since more people know what this program will do. The link is the transition cdrecord package. For users who have caught up with the name change and install the wodim package, the is no /usr/bin/cdrecord. So IMHO it would be better if scripts and documentation used wodim. /Per
Re: FAI 3.2 released
> On Wed, 22 Aug 2007 17:41:17 +0200 (CEST), Per Foreby <[EMAIL PROTECTED]> > said: > Having the config space and the nfsroot on the CD is no problem as long > as it isn't used. But if I use this in menu.lst: >... root=/dev/nfs ip=::dhcp FAI_ACTION=install FAI_FLAGS=verbose,sshd > together with my current dhcp configuration: >option root-path "/srv/fai/nfsroot,rsize=8192,..."; > or maybe use nfsroot as a kernel parameter, the configuration on the CD > should be ignored. Yep. You can also add this: ip=dhcp root=/dev/nfs nfsroot=/srv/fai/nfsroot Then root-path is not needed in dhcpd.conf. > By the way, why does burniso() in fai-cd use cdrecord? Shouldn't it be > wodim these days? As long as cdrecord is a link to wodim, I prefer to call cdrecord, since more people know what this program will do. -- regards Thomas
Re: FAI 3.2 released
On Wed, 22 Aug 2007, Thomas Lange wrote: On Wed, 22 Aug 2007 16:23:37 +0200 (CEST), Per Foreby <[EMAIL PROTECTED]> said: > But make-fai-bootfloppy uses $NFSROOT/boot/vnlinu?-*. If that is a > standard debian kernel it won't work without initramfs. Yes, and both won't fit onto a 1.4M floppy. Thats true for the fai kernel as well. I have to use "make-fai-bootfloppy -B". But by increasing $size further, it should be possible to make initrd.img* fit, or am I wrong? >> You can create a fai-cd that only includes the kernel and initrd and >> modify the grub menu, to get the nfsroot via NFS. > Do you meen that I should use -g to supply a menu.lst like the one > make-fai-boot creates, and then use "-m /empty/dir"? Yes, give it a try. It will also put the config space and the nfsroot into this image. Having the config space and the nfsroot on the CD is no problem as long as it isn't used. But if I use this in menu.lst: ... root=/dev/nfs ip=::dhcp FAI_ACTION=install FAI_FLAGS=verbose,sshd together with my current dhcp configuration: option root-path "/srv/fai/nfsroot,rsize=8192,..."; or maybe use nfsroot as a kernel parameter, the configuration on the CD should be ignored. The reason why I want this minimal boot-CD is to be able to change the configuration without creating a new CD every time. By the way, why does burniso() in fai-cd use cdrecord? Shouldn't it be wodim these days? /Per
Re: FAI 3.2 released
> On Wed, 22 Aug 2007 16:23:37 +0200 (CEST), Per Foreby <[EMAIL PROTECTED]> > said: > But make-fai-bootfloppy uses $NFSROOT/boot/vnlinu?-*. If that is a > standard debian kernel it won't work without initramfs. Yes, and both won't fit onto a 1.4M floppy. >> You can create a fai-cd that only includes the kernel and initrd and >> modify the grub menu, to get the nfsroot via NFS. > Do you meen that I should use -g to supply a menu.lst like the one > make-fai-boot creates, and then use "-m /empty/dir"? Yes, give it a try. It will also put the config space and the nfsroot into this image. -- regards Thomas
Re: FAI 3.2 released
On Wed, 22 Aug 2007, Holger Levsen wrote: Hi, On Wednesday 22 August 2007 15:04, Per Foreby wrote: Will softupdate work if a use fai-client 3.2 against a 3.1.8 server? With softupdates you don't use a server - except one to hold the configuration files. But the configuration from 3.1.8 might be missing something that the 3.2 client expects. And the configuartion path might be changed. However, I gave it a try, and everything looks fine. When it comes to the recently discussed bugs, fai 3.2 finds the old list of classes, so -N is not mandatory any more, but /var/lib/fai/config is still not unmounted. /Per
Re: FAI 3.2 released
On Wed, 22 Aug 2007, Thomas Lange wrote: On Wed, 22 Aug 2007 15:04:52 +0200 (CEST), Per Foreby <[EMAIL PROTECTED]> said: > Will softupdate work if a use fai-client 3.2 against a 3.1.8 server? I'm not sure, but I guess it should work. Ok, I'll give it a try an report any success. Since I used your repository in sources.list, and is in the middle of a major upgrade, about half of the clients have fai-client 3.1.8 and the rest 3.2, so I have a perfect test environment. > What happens to the small boot cd (make-fai-bootfloppy -B -i ...). Is > that option still available now that fai uses initramfs? It's still available and was not modified, so it does not support the initrd. But make-fai-bootfloppy uses $NFSROOT/boot/vnlinu?-*. If that is a standard debian kernel it won't work without initramfs. I can of course edit make-fai-bootfloppy to make is use the kernel from fai-kernels, but I presume that this package won't be updated in the future. > (I use that method for older PXE bios versions that don't honour > next-server.) You can create a fai-cd that only includes the kernel and initrd and modify the grub menu, to get the nfsroot via NFS. Do you meen that I should use -g to supply a menu.lst like the one make-fai-boot creates, and then use "-m /empty/dir"? /Per
Re: FAI 3.2 released
Hi, On Wednesday 22 August 2007 15:04, Per Foreby wrote: > Will softupdate work if a use fai-client 3.2 against a 3.1.8 server? With softupdates you don't use a server - except one to hold the configuration files. regards, Holger pgpJ44sRxiyRz.pgp Description: PGP signature
Success with root on LVM using the Gervai Raid and LVM hook
Hi. Just a quick report to say that I have successfully used the Gervai RAID and LVM hook[1] to FAI install a bunch of new hosts with root on LVM, using FAI as shipped with Debian Etch. Note: I have no need for RAID but it should be easy to generalise the following steps to work with the Root on LVM on RAID approach. Besides installing the SW_RAID script as described by its documentation, it was also necessary to: * Append dm_mod to the kernelmodules in class/20-hwdetect.source, so that the booted install system becomes LVM capable. * Create a configuration script (included below) that that adds the device mapper modules to /etc/initramfs-tools/modules and rebuilds the initramfs at the end of installation. (The presence of these modules causes update-initramfs to include the relevant libraries and binaries for the initrd to support LVM.) Irrespective of whether or not LVM/RAID support will be included within vanilla FAI anytime soon, it could be immediately useful to amend the default FAI tasklist somehow so that at a stage after installing the packages it will check the contents of a variable, say INITRD_MODULES, which unless empty it appends to $target/etc/initramfs-tools/modules and invokes $ROOTCMD update-initramfs -u. This would give you some simple control of what lands in your initrd, avoiding the need for my fixup script. However, I think that is would be very valuable to support Root on LVM (on RAID) since this is a supported option by the "new" Debian Installer and nowadays the BusyBox-based initramfs makes debugging of boot problems much easier that with the previous system. Hope this helps, Tez [1] http://faiwiki.informatik.uni-koeln.de/index.php/User:Gervai/Raid_and_LVM_hook Contents of scripts/SW_RAID/10-misc: #! /bin/bash error=0 ; trap "error=$((error|1))" ERR cat <> $target/etc/initramfs-tools/modules dm_mod dm_mirror dm_snapshot EOF $ROOTCMD update-initramfs -u # Fix the incorrect /dev/ entry that the SW_RAID helper makes in fstab with root on LVM # - Obviously it would be better to fix the Gervai RAID and LVM hook in the first place sed -ie '/^\/dev\/ /d' /tmp/target/etc/fstab
Re: FAI 3.2 released
> On Wed, 22 Aug 2007 15:04:52 +0200 (CEST), Per Foreby <[EMAIL PROTECTED]> > said: > Will softupdate work if a use fai-client 3.2 against a 3.1.8 server? I'm not sure, but I guess it should work. > What happens to the small boot cd (make-fai-bootfloppy -B -i ...). Is > that option still available now that fai uses initramfs? It's still available and was not modified, so it does not support the initrd. > (I use that method for older PXE bios versions that don't honour > next-server.) You can create a fai-cd that only includes the kernel and initrd and modify the grub menu, to get the nfsroot via NFS. -- regards Thomas
Re: FAI 3.2 released
Two questions: Will softupdate work if a use fai-client 3.2 against a 3.1.8 server? What happens to the small boot cd (make-fai-bootfloppy -B -i ...). Is that option still available now that fai uses initramfs? (I use that method for older PXE bios versions that don't honour next-server.) /Per
FAI-CD 3.2 ISO image available
The new FAI-CD 3.2 ISO image for i386 is available. Get it from: http://www.informatik.uni-koeln.de/fai/fai-cd/ -- regards Thomas
