Re: FAI build using a small disk image with LACP support
On Fri, 2020-02-28 at 09:24 +0100, Thomas Lange wrote: > > > > > > On Fri, 28 Feb 2020 16:21:38 +1300, Andrew Ruthven < > > > > > > and...@etc.gen.nz> said: > > > All the servers support Redfish, so I can script uploading a > disk image > > to be booted from. > > > What I'm thinking is prepare a FAI boot image based on an > nfsroot, with > > minimal configuration to bring up a degraded LACP bond. > > > Has anyone already done this? > No. But > using fai-cd you can create different flavours of a boot CD. > A boot CD with just the kernel and the initrd, or a CD including > additionally the nfsroot. > > In your case a boot only CD (kernel+initrd) should be fine. Have a > look at the man page dracut.cmdline(7) (which we are using to build > the initrd). This includes already options for bonding: [snip] Ah ha! That sounds like it would be ideal, I'll give it a shot and report back. Cheers, Andrew -- Andrew Ruthven, Wellington, New Zealand and...@etc.gen.nz| linux.conf.au 2020, Gold Coast, AU https://catalystcloud.nz |https://lca2020.linux.org.au
Re: FAI build using a small disk image with LACP support
> On Fri, 28 Feb 2020 16:21:38 +1300, Andrew Ruthven > said: > All the servers support Redfish, so I can script uploading a disk image > to be booted from. > What I'm thinking is prepare a FAI boot image based on an nfsroot, with > minimal configuration to bring up a degraded LACP bond. > Has anyone already done this? No. But using fai-cd you can create different flavours of a boot CD. A boot CD with just the kernel and the initrd, or a CD including additionally the nfsroot. In your case a boot only CD (kernel+initrd) should be fine. Have a look at the man page dracut.cmdline(7) (which we are using to build the initrd). This includes already options for bonding: bond=[::[:[:]]] Setup bonding device on top of . is a comma-separated list of physical (ethernet) interfaces. is a comma-separated list on bonding options (modinfo bonding for details) in format compatible with initscripts. If includes multi-valued arp_ip_target option, then its values should be separated by semicolon. if the mtu is specified, it will be set on the bond master. Bond without parameters assumes bond=bond0:eth0,eth1:mode=balance-rr Also read man fai-cd(8). -- regards Thomas
