On Tue, May 4, 2021 at 8:51 AM Toomas Soome via openindiana-discuss < openindiana-discuss@openindiana.org> wrote:
> > > 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. > Is there ever a situation in which the disk can run out of space due to too many BEs? And if so, how does one go about automatically pruning old/unwanted BEs? > > Rgds, > Toomas > _______________________________________________ > openindiana-discuss mailing list > openindiana-discuss@openindiana.org > https://openindiana.org/mailman/listinfo/openindiana-discuss > _______________________________________________ openindiana-discuss mailing list openindiana-discuss@openindiana.org https://openindiana.org/mailman/listinfo/openindiana-discuss
