On Tue, Nov 14, 2006 at 07:32:08PM +0100, [EMAIL PROTECTED] wrote: > > >Actually, we have considered this. On both SPARC and x86, there will be > >a way to specify the root file system (i.e., the bootable dataset) to be > >booted, > >at either the GRUB prompt (for x86) or the OBP prompt (for SPARC). > >If no root file system is specified, the current default 'bootfs' specified > >in the root pool's metadata will be booted. But it will be possible to > >override the default, which will provide that "fallback" boot capability. > > > I was thinking of some automated mechanism such as: > > - BIOS which, when reset during POST, will switch to safe > defaults and enter setup > - Windows which, when reset during boot, will offer safe mode > at the next boot. > > I was thinking of something that on activation of a new boot environment > would automatically fallback on catastrophic failure.
Provide at least two GRUB menu entries: one for the latest BE, whatever that is, and one for the last BE known to have booted to a multi-user milestone. Then have an SMF service update a ZFS property of the booted BE to mark it as the last one to have booted. This property should be a date, so only the currently booted BE's need be updated. Nico -- _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
