I believe there was some discussion of setting the system clock via udev a while back, but I can't find the thread right now.
I had a short email conversation with the util-linux-ng maintainer about putting /etc/adjtime in /var/lib like is done in LFS. He asked about the timing of mounting partitions (S40mountfs for us) and running hwclock (S25setclock for us). We moved setclock from S60 to S25 about a year ago: http://wiki.linuxfromscratch.org/lfs/ticket/1948 We modify the code to make the default location of adjtime to be /var/lib, but we don't warn about making /var a separate partition. If that is done, hwclock will not be able to save it's drift adjustment parameters. It may be a non issue for us because I haven't heard anyone complain and the error message should be in the logs. If we use udev to set the clock, we may get into a race problem with certain configurations. I don't know if this is worth spending a lot of time, but I'd like to see a system that can have / mounted read only. The problem areas during boot are /etc/mtab, /etc/blkid.tab, and /etc/adjtime. With the move of libblkid and libuuid to util-linux-ng, the first two are being addressed in the relatively near future, but we should get adjtime right for any reasonable configuration. -- Bruce -- http://linuxfromscratch.org/mailman/listinfo/lfs-dev FAQ: http://www.linuxfromscratch.org/faq/ Unsubscribe: See the above information page
