[lustre-discuss] Recover from broken lustre updates

[Ms. Megan Larko]

Hello,

Yes. You may boot into the old linux kernel and erase/install/downgrade to
your desired Lustre version.

Best wishes,
Megan

On Tue, Jul 27, 2021 at 8:53 PM Haoyang Liu <liuhaoyang at pku.edu.cn> wrote:

> Hello Megan:
>
>
> After checking the yum log, I found the following packages were also
> updated:
>
>
> Jul 24 10:30:07 Updated:
> lustre-modules-2.7.19.8-3.10.0_514.2.2.el7_lustre.x86_64.x86_64
> Jul 24 10:30:07 Updated:
> lustre-osd-ldiskfs-mount-2.7.19.8-3.10.0_514.2.2.el7_lustre.x86_64.x86_64
> Jul 24 10:31:35 Updated:
> lustre-osd-ldiskfs-2.7.19.8-3.10.0_514.2.2.el7_lustre.x86_64.x86_64
> Jul 24 10:31:36 Updated:
> lustre-2.7.19.8-3.10.0_514.2.2.el7_lustre.x86_64.x86_64
> Jul 24 10:33:04 Installed:
> lustre-osd-zfs-2.7.19.8-3.10.0_514.2.2.el7_lustre.x86_64.x86_64
>
>
> Is it safe to 1) boot into the old kernel and 2) remove the updated lustre
> packages and 3) install the old packages?
>
>
> Thanks,
>
>
> Haoyang
>
>
> -----原始邮件-----
> *发件人:*"Ms. Megan Larko via lustre-discuss" <
> lustre-discuss at lists.lustre.org>
> *发送时间:*2021-07-27 22:15:15 (星期二)
> *收件人:* "Lustre User Discussion Mailing List" <
> lustre-discuss at lists.lustre.org>
> *抄送:*
> *主题:* [lustre-discuss] Recover from broken lustre updates
>
>
>
> Greetings!
>
> I've not seen a response to this post yet so I will chime in.
>
> If the only rpm change was the linux kernel then you should be able to
> reboot into the previous linux kernel.   The CentOS distro, like most linux
> distros, will leave the old kernel rpms in place.  You may use commands
> like "grub2 editenv list" to see what kernel is the current default; you
> may change the default, etc...
>
> I would try this first.
> Cheers,
> megan
>
> --
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