> On 4. May 2021, at 16:27, Dave Miner <dave.mi...@oracle.com> wrote: > > > > On 5/4/2021 8:59 AM, Yassine Chaouche wrote: > > Le 5/4/21 à 1:43 PM, Stephan Althaus a écrit : > >> > >> Hello! > >> > >> We have "Boot environments" > >> > >> On every "pkg update" you get a new BE that will be used on next reboot. > > > > This is just > > > ... > > Is this done by issuing a ZFS snapshot of the whole root partition ? or > > is it more granular ? > > > > If this is done via snapshots, this means writing to an evergrowing file > > on disk until the snapshot is removed. So the longer you keep a snapshot, > > the bigger the file gets. > > > > Yes, boot environments in the OpenSolaris-derived OS's are implemented using > ZFS snapshots/clones of the root datasets. Combined with IPS's optimizations > to only update objects that have changed between package versions, you may > find that boot environments for an update may not be nearly as large as the > initial installation; it all depends on how much has changed. Reclaiming > space is as simple as deleting older boot environments when they're no longer > needed. It's not at all unusual for a system to have a dozen or more boot > environments; some of the more masochistic among us used to have systems with > 100 or more. > > Dave >
With old grub, the number is limited to 50 - 60 becsuse of memory setup. With loader, I did demo with 600, but since loader is using sliding window, the number of BE’s is not limited there. Rgds, Toomas _______________________________________________ openindiana-discuss mailing list openindiana-discuss@openindiana.org https://openindiana.org/mailman/listinfo/openindiana-discuss
