Rodney W. Grimes <freebsd-...@gndrsh.dnsmgr.net> wrote: > > Are you refering to something like: > > > > vfs.root.mountfrom="cd9660:/dev/md0.uzip" > > > > we boot that way all the time. > > What provides the cd9660 driver to FreeBSD? When you load the .iso > over a network card, aka PXE/HTTP, the code that does that usually > creates a ram disk and a "fake cd drive" that stops working as soon
We don't use PXE much except in a bringup lab, and then I think we use NFS for rootfs. Normally if iso is comming from network it is to do an install eg loader is doing 'install tftp://host/install.tar' The "fake cd drive" is in the kernel, loader just copies the iso into memory like any other module, and by the time that's done you just reboot into the newly installed system, which again uses vfs.root.mountfrom="cd9660:/dev/md0.uzip" but in that case the rootfs is an iso image on local disk. The rootfs iso is minimal - enough to fsck and mount real media and initialize Verified Exec. It improves our chances of being able to recover from severe disk corruption after cleaning lady pulls the cord, to vaccuum ;-) --sjg _______________________________________________ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
