On 12.10.2015 05:02, Neil Brown wrote: > > If I have booted a kernel with md/raid built in (no modules) and > I use dracut to build the initramfs for a different kernel which > has the md code compiled as separate modules, then it does not include > the required md modules in the initramfs. > > As a particular instance this happen when the root filesystem is on > RAID0. The 'raid0.ko' module is not included and boot fails. > > https://bugzilla.opensuse.org/show_bug.cgi?id=935993 > > This only happens when 'host-only' is selected (which is the default for > openSUSE). > > the modules.d/90mdraid/module-setup.sh code calls > > instmods =drivers/md > > instmods calls > module_is_host_only "raid0" > and this incorrectly fails. > > If raid0.ko didn't have any alias this would succeed, but it does. > > $ modinfo -F alias raid0 > md-level-0 > md-raid0 > md-personality-2 Huh? Is the module not loaded? > > However these aliases don't appear in any modalias file in /sys/devices, > in /proc/crypto, or in /proc/modules. > > Maybe you could parse /proc/mdstat.. > > if [ -f /proc/mdstat ]; then > while read _d _c _a _m _x; do > if [ "$_c" = ':' -a "$_a" = 'active' ]; then > host_modalias["md-$_m"]=1 > fi > done < /proc/mdstat > fi > > but it all seems rather fragile. There are probably other modules that > might miss out accidentally. dm? > > Do we really need the host_modalias stuff? > > Thanks, > NeilBrown > -- To unsubscribe from this list: send the line "unsubscribe initramfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
