On Sunday 30 January 2005 11:20 am, Molle Bestefich wrote: > Hi > > I can't get dm_mon to load the raid1 target. Do you mean "dm_mod", which is the core of the DM driver? > The syslog says (timestamps removed): > livecd device-mapper: : unknown target type > livecd > livecd device-mapper: error adding target to table This means a user-space program tried to load a device-table for a target-type that doesn't exist or couldn't be loaded. > Seems that there's a completely blank syslog message (reproducible), > and a surplus colon in the first message. Might be related to the > dmraid tool. Anyway. > > I'm booting with a Gentoo CD [gen2dmraid 0.99 - kernel: 2.6.9, driver > 4.1.0, library 1.00.17-ioctl]. > > The /lib/modules/.../raid1.ko file is present. That is the module for MD/Software-RAID RAID-1, not the Device-Mapper mirroring module. They are completely different drivers that just happen to be in the same directory in the kernel source and module trees. > I tried modprobe raid1 (fine), this didn't add the mirror target to > "dmsetup targets". > Tried unloading dm-mon, reloading raid1, loading dm-mon, still no mirror > target. > > Any hints on what is going wrong / what I am doing wrong? The Device-Mapper mirroring target is called "dm-mirror". Check your kernel configuration and make sure you have CONFIG_DM_MIRROR set to "y" or "m". If necessary, you may need to rebuild your kernel to enable it. Once it's enabled, run "dmsetup targets" and look for a "mirror" entry. If you've compiled DM mirroring as a module, try "modprobe dm-mirror", and then run "dmsetup targets" again. -- Kevin Corry kevcorry@xxxxxxxxxx http://evms.sourceforge.net/