Re: UEFI question
- In reply to: Larry Rosenman : "Re: UEFI question"
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Date: Wed, 23 Nov 2022 08:17:48 UTC
On Tue, Nov 22, 2022 at 08:01:50PM -0600, Larry Rosenman wrote: > > > On 11/22/2022 5:50 pm, Eric Borisch wrote: > > > On Tue, Nov 22, 2022 at 1:50 PM Warner Losh <imp@bsdimp.com> wrote: > > > > On Tue, Nov 22, 2022, 11:42 AM Alan Somers <asomers@freebsd.org> wrote: > > On Tue, May 31, 2022 at 9:27 AM John Kennedy <warlock@phouka.net> wrote: > > > > > > On Tue, May 31, 2022 at 02:32:21PM +0200, Julien Cigar wrote: > > > > I have a Dell R340 server on which installed a 13.0-RELEASE and then > > > > upgraded to 13.1-RELEASE (through freebsd-update). ZFS is used > > > > (raidz2). > > > > > > > > The system has the following partitions: > > > > https://gist.github.com/silenius/2defdd5480c5c1bc9ba2ff8940756466 > > > > Some things regarding UEFI are not clear to me: > > > > - as you can see in the partition list, the installer created an EFI > > > > partition on all 4 drives, however it looks like only the first > > > > one has > > > > has been populated (an mounted): > > > > https://gist.github.com/silenius/1220c953f905d868c1615fd0e7122bbf > > > > .. why ? > > > > - if I understand well if my da0 disk dies the system becomes > > > > unbootable > > > > (https://gist.github.com/silenius/51d202053295270eaaeb2c02316165ee).. > > > > correct? > > > > - what's the correct way to fix this? should I newfs_msdos on > > > > each EFI > > > > partition and copy /boot/loader.efi as /EFI/BOOT/BOOTX64.EFI? or > > > > should I use efibootmgr? > > > > > > > > Thanks for enlightening me :) > > > > > > I use UEFI to multi-boot a lot myself, but not through efibootmgr (vs > > > picking it via UEFI/BIOS on boot manually). I'm multi-booting windows > > > and FreeBSD, so I'm being (justifiably) paranoid, but not based on > > > being burnt in recent memory. > > > > > > Depending on how your system works (drives are enumerated at startup), > > > in theory any of your disks could be da0. If you've only got a > > > working > > > EFI partition on one, that is probably hedging your bets a bit but > > > yes, > > > if that drive died, you'd probably be dead. > > > > > > In my dual-disk setups, I'd see an EFI and a freebsd-boot (BIOS) > > > partition > > > on both disks, I split my total swap between the two (not mirrored), > > > and > > > did ZFS "raiding" (mirroring-ish, usually) across the freebsd-zfs > > > partitions. > > > > > > In my case, using the UEFI/BIOS from the motherboard, I could manually > > > pick a disk to boot from which let me vet UEFI or ZFS bootblock > > > changes > > > for sanity before committing to both. But yes, I'd upgrade them > > > both to > > > the same thing once I was sure it would work. > > > > I just noticed the same problem. For mirrored installs, the > > 13.1-RELEASE installer only formats the efi partition on one hard > > disk. Shouldn't it do both? > > > > We go back and forth on this question.... I think we should, but others > > got grumpy when I suggested it. Maybe just all the drives in the zpool > > used for the BE? > > > > Warner > > Just a "yes, please." If you're installing zfs root on a mirror of disks, > POLA suggests the required boot bits are on both disks, too. > > Thanks, > - Eric > > > > > This is my common setup for every FreeBSD box I build: > > ❯ gpart show > => 40 3905945520 mfid0 GPT (1.8T) > 40 532480 1 efi (260M) > 532520 16779224 3 freebsd-swap (8.0G) > 17311744 3888633816 4 freebsd-zfs (1.8T) > > => 40 3905945520 mfid1 GPT (1.8T) > 40 532480 1 efi (260M) > 532520 16779224 3 freebsd-swap (8.0G) > 17311744 3888633816 4 freebsd-zfs (1.8T) > > => 40 5859442608 mfid2 GPT (2.7T) > 40 532480 1 efi (260M) > 532520 16779224 3 freebsd-swap (8.0G) > 17311744 5842130904 4 freebsd-zfs (2.7T) > > => 40 5859442608 mfid3 GPT (2.7T) > 40 532480 1 efi (260M) > 532520 16779224 3 freebsd-swap (8.0G) > 17311744 5842130904 4 freebsd-zfs (2.7T) > > => 40 3905945520 mfid4 GPT (1.8T) > 40 532480 1 efi (260M) > 532520 16779224 3 freebsd-swap (8.0G) > 17311744 3888633816 4 freebsd-zfs (1.8T) > > => 40 3905945520 mfid5 GPT (1.8T) > 40 532480 1 efi (260M) > 532520 16777216 3 freebsd-swap (8.0G) > 17309736 3888635824 4 freebsd-zfs (1.8T) > > ler in 🌐 borg in ~ via C v14.0.5-clang on ☁️ (us-east-1) > ❯ > > Disk number and sizes vary but the setup is the same EFI or BOOT or Both, > swap, and ZFS on *ALL* disks By default disks are partitionned but.. that's all. You need to newfs_msdos and cp loader.efi on each but first EFI partition. I don't understand the reason but I think some people will be upset when the first disk dies and the system won't boot anymore... > > -- > Larry Rosenman http://www.lerctr.org/~ler > Phone: +1 214-642-9640 E-Mail: ler@lerctr.org > US Mail: 5708 Sabbia Dr, Round Rock, TX 78665-2106 -- Julien Cigar Belgian Biodiversity Platform (http://www.biodiversity.be) PGP fingerprint: EEF9 F697 4B68 D275 7B11 6A25 B2BB 3710 A204 23C0 No trees were killed in the creation of this message. However, many electrons were terribly inconvenienced.