Date: Sun, 14 Aug 2022 14:58:10 -0700 From: Pete Wright <pete@nomadlogic.org> To: freebsd-current@freebsd.org Subject: Re: Updating EFI boot loader results in boot hangup Message-ID: <9c63a5cd-cd3e-dba4-e436-10f2187ec6f5@nomadlogic.org> In-Reply-To: <77a7f41c-b060-8582-f19f-345c33043750@gmail.com> References: <20220814.095721.849461222067829352.yasu@FreeBSD.org> <CA%2BGqWgsMYEp4goeLBO4%2BufDU_ap5Opmf4udL_WSd-NZU1Q3dog@mail.gmail.com> <CANCZdfp4Har%2BrLV5kg94EWO_Uc767K7ga9AKLTznvqoC2JvQXw@mail.gmail.com> <20220814.110850.1703361053728529792.yasu@FreeBSD.org> <CA%2BGqWguOkHegLmijD2BAYhj7t9qCVY%2BmYNLN1_tJGp%2Bi=mNn6g@mail.gmail.com> <45007308-136a-8938-33d0-bb2509ee6ae7@FreeBSD.org> <20220814192609.wyfcogl3dwzteuva@colony.nomadlogic.org> <77a7f41c-b060-8582-f19f-345c33043750@gmail.com>
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On 8/14/22 13:26, Graham Perrin wrote:
> On 14/08/2022 20:26, Pete Wright wrote:
>> … has anyone else who has been impacted by this been able to recover? …
> If you have multiple boot environments: do you have a non-affected BE
> (prior to c32dde3166922f55927764464d13f1bc9640f5f6)?
So unfortunately i didn't have a recent BE, but I was able to do the
following to get back up:
1. download latest CURRENT snapshot memdisk from ftp.freebsd.org and put
it on a usb drive
2. boot via usb drive and enter live shell
3. load zfs kmod:
kldload zfs
4. import zroot:
zpool import -R /mnt/ zroot
5. mount ROOT filesystem:
zfs mount zroot/ROOT/default
6. copy usb loader to zroot:
cp /boot/loader /mnt/boot/loader
i'd recommend just using boot environments, it's much easier and is
specifically what they are for :)
-pete
--
Pete Wright
pete@nomadlogic.org
@nomadlogicLA
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<div class="moz-cite-prefix">On 8/14/22 13:26, Graham Perrin wrote:<br>
</div>
<blockquote type="cite"
cite="mid:77a7f41c-b060-8582-f19f-345c33043750@gmail.com">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<div class="moz-cite-prefix">On 14/08/2022 20:26, Pete Wright
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:20220814192609.wyfcogl3dwzteuva@colony.nomadlogic.org">
<pre class="moz-quote-pre" wrap="">… has anyone else who has been impacted by this been able to recover? …</pre>
</blockquote>
If you have multiple boot environments: do you have a non-affected
BE (prior to c32dde3166922f55927764464d13f1bc9640f5f6)?<br>
<lt-container></lt-container>
</blockquote>
<br>
So unfortunately i didn't have a recent BE, but I was able to do the
following to get back up:<br>
<br>
1. download latest CURRENT snapshot memdisk from <a class="moz-txt-link-abbreviated" href="ftp://ftp.freebsd.org">ftp.freebsd.org</a>; and
put it on a usb drive<br>
2. boot via usb drive and enter live shell<br>
3. load zfs kmod:<br>
kldload zfs<br>
4. import zroot:<br>
zpool import -R /mnt/ zroot<br>
5. mount ROOT filesystem:<br>
zfs mount zroot/ROOT/default<br>
6. copy usb loader to zroot:<br>
cp /boot/loader /mnt/boot/loader<br>
<br>
<br>
i'd recommend just using boot environments, it's much easier and is
specifically what they are for :)<br>
<br>
-pete<br>
<pre class="moz-signature" cols="72">--
Pete Wright
<a class="moz-txt-link-abbreviated" href="mailto:pete@nomadlogic.org">pete@nomadlogic.org</a>
@nomadlogicLA</pre>
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