On 22:36, Doug Ledford wrote: > > I believe (Doug, please correct me if the following is wrong) the > > advantage of storing mdmon's pid files in /dev is that in /dev they > > remain visible after the switch to the new root. That's the "handoff > > after pivotroot" in the subject. > > I'm a little fuzzy on this myself. The original patch was from another > Red Hatter that works on dracut, the new mkinitrd replacement in Fedora > 12. When integrating IMSM support in the md raid stack and dracut, > there became a problem with starting mdmon in the initramfs filesystem > and then transitioning it to the new filesystem. It turns out that, as > you point out, because /dev is moved from the initramfs to the new root > (mainly because udev is now started in the initramfs), we could avoid a > number of issues caused by mdmon's files being in /var/run instead of > /dev. One could also mount /var/run in the initramfs and move it over like /dev, but that gets a bit messy because /var might be on a yet another fs.. > This also allowed us to do the mdmon restart *after* the switchroot > had taken place and solved a number of issues with getting mdmon > support to work. Just out of interest: Why does mdmon need the restart at all? Thanks Andre -- The only person who always got his work done by Friday was Robinson Crusoe
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