Hi, We've been using dracut 014 for a while and are generally happy (as you know), but I've run into problems with the latest releases. I like the idea of only assembling those raids that are absolutely needed for boot. Ditto for activating only those LVM VGs/LVs that are needed. However I have a bit of a problem with the techniques used to work out what the necessary UUIDs are when dracut is run. At present we use mkinitrd. As you likely know, this does not run udev during early boot and thus the udev metadata database lacks certain bits of essential information (this is actually what motivated us to move to dracut in the first place - systemd being fully hotplug requires this metadata for a proper boot - it doesn't just probe and try!). The problem I have comes in when a user upgrades a previous distro (mkinitrd) to a new one (dracut). If they do an in-place update (i.e. not booting to an install media - just running urpmi --auto-update from a booted system - I've used this method of upgrading my stable boxes for years), then the metadata dracut expects is simply not there in udev. So I think I'll have to revert to the older methods of parsing /sys tree to find slaves etc. and looking ad mdadm and vgdisplay/lvdisplay outputs to work out the UUIDs needed. That said I do not really want to maintain this as a distro patch, so I wanted to check what the upstream opinion is on doing things the "old fashioned way" (although of course allowing for the various mount points now supported in dracut >= 015 - not just /)? When you initramfs is hosed, it would be nice to be able to rebuild it from a very minimal environment, so I think not relying 100% on udevadm here is a good thing generally anyway, but others may disagree. So what are the thoughts here? Is everyone happy with udevadm info as things stand? Will I just have to do distro patches here to deal with the upgrade problem? FWIW, I'm also having a lot of problems with users who have booted with previous versions of dracut and still did not get the mdraid module included... so I think the current code in dracut 016 is still somewhat buggy with regards to raid detection... Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited http://www.tribalogic.net/ Open Source: Mageia Contributor http://www.mageia.org/ PulseAudio Hacker http://www.pulseaudio.org/ Trac Hacker http://trac.edgewall.org/ -- 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
