<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><br id="lineBreakAtBeginningOfMessage"><div><br><blockquote type="cite"><div>On 17. Aug 2025, at 04:43, Atiq Rahman <atiqcx@gmail.com> wrote:</div><br class="Apple-interchange-newline"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div>Hi Eric,</div><div>> <span style="font-family:Verdana,Arial,Helvetica,sans-serif;font-size:13.3333px">The "Solaris Root" partition type is relevant to UFS, not ZFS. On UEFI, set s0/p1 to be an ESP, "boot, hidden, esp" flags and format it fat32</span></div><div><span style="font-family:Verdana,Arial,Helvetica,sans-serif;font-size:13.3333px"><br></span></div><div><span style="font-family:Verdana,Arial,Helvetica,sans-serif;font-size:13.3333px">Yep, I have done that quite a while ago. Linux is booting alright with that.</span></div><div><span style="font-family:Verdana,Arial,Helvetica,sans-serif;font-size:13.3333px"><br></span></div><div><span style="font-family:Verdana,Arial,Helvetica,sans-serif;font-size:13.3333px">> your "Solaris Reserved" should be s8/p9, 8Mib, -1MiB from end of disk</span><span style="font-family:Verdana,Arial,Helvetica,sans-serif;font-size:13.3333px"></span></div><div>. That's for legacy / MBR partitions. Mine is GPT. I don't need that or any other partition for Solaris. I only need one single partition of zfs / illumos and that's working so far.</div></div></div></div></div></blockquote><div><br></div><div>It is created automatically on GPT and it is used to store fabricated disk identifier for case the disk does not provide one for itself. It is originating from Solaris and since illumos is fork of Solaris, it is still there. MBR+VTOC setup is using space from ‘alternates’ for the same purpose.</div><div><br></div><div>rgds,</div><div>toomas</div><br><blockquote type="cite"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><br></div><div>> <span style="font-family:Verdana,Arial,Helvetica,sans-serif;font-size:13.3333px">/EFI/OpenIndiana/bootx64.efi (copy of loader.efi)</span></div><div><span style="font-family:Verdana,Arial,Helvetica,sans-serif;font-size:13.3333px">I put mine on </span><span style="font-family:Verdana,Arial,Helvetica,sans-serif;font-size:13.3333px">/EFI/Solaris/</span></div><div><span style="font-family:Verdana,Arial,Helvetica,sans-serif;font-size:13.3333px"><br></span></div><div><span style="font-family:Verdana,Arial,Helvetica,sans-serif;font-size:13.3333px">I might try </span><span style="font-family:Verdana,Arial,Helvetica,sans-serif;font-size:13.3333px">rEFInd in future. Right now, I'm booting everything using Linux's bootloader.</span></div><div><span style="font-family:Verdana,Arial,Helvetica,sans-serif;font-size:13.3333px"><br></span></div><div><div class="gmail_signature" dir="ltr"><div dir="ltr"><p class="MsoNormal" style="vertical-align:baseline"><a name="m_2295270963715378730_SignatureSanitizer__MailAutoSig"><span style="font-size:10pt;font-family:Roboto">Thanks,</span></a></p><p class="MsoNormal" style="vertical-align:baseline"><a name="m_2295270963715378730_SignatureSanitizer__MailAutoSig"><span style="font-size:10pt;font-family:Roboto">Atiq</span></a></p></div></div></div><br></div><br><div class="gmail_quote"><div class="gmail_attr" dir="ltr">On Thu, Aug 14, 2025 at 8:25 PM Eric J Bowman <<a href="mailto:mellowmutt@zoho.com" target="_blank">mellowmutt@zoho.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><u></u><div><div style="font-family:Verdana,Arial,Helvetica,sans-serif;font-size:10pt"><div><blockquote id="m_2295270963715378730m_-2023872842473530012blockquote_zmail" style="margin:0px"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div>><br></div><div>> parted > mkpart illumos 767GB 100%<br></div><div>></div><div>> and then set the partition type to solaris launching,<br></div><div>></div><div><div><code><span>> $ sudo gdisk /dev/nvme0n1</span></code><br></div></div><div dir="ltr">></div><div>> (set the GUID to "6A85CF4D-1DD2-11B2-99A6-080020736631" )<br></div><div>><br></div></div></div></div></div></div></blockquote></div><div><br></div>The "Solaris Root" partition type is relevant to UFS, not ZFS. On UEFI, set s0/p1 to be an ESP, "boot, hidden, esp" flags and format it fat32, your "Solaris Reserved" should be s8/p9, 8Mib, -1MiB from end of disk. Your ZFS partition should be set to ZFS for illumos, FreeBSD ZFS for freebsd. Being bootable is a property of the ZFS filesystem, not its partition.<br><br>/EFI<br>/EFI/OpenIndiana/bootx64.efi (copy of loader.efi)<br>/EFI/boot<br><br>I put rEFInd Plus in /EFI/boot, with a backup of its bootx64.efi in case it gets overwritten.<br><br>/EFI/boot/drivers/x64_zfs.efi<br><br>This driver will allow rEFInd to stub-load loader64.efi from your ZFS partition on most firmware, some will still need the /EFI/OpenIndiana/bootx64.efi. I don't know if the string "OpenIndiana" is registered, this one is:<br><br>/EFI/FreeBSD<br><br>That's the gist of multiboot on UEFI, more work if you want more than one illumos or freebsd partition, but they will coexist peacefully.<br></div></div></blockquote></div></div></div><div id="topicbox-footer" style="margin:10px 0 0;border-top:1px solid #ddd;border-color:rgba(0,0,0,.15);padding:7px 0;">
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