From: Leif Lindholm <leif.lindholm@linaro.org>
To: "Huangming (Mark)" <huangming23@huawei.com>
Cc: Ming Huang <heyi.guo@linaro.org>,
linaro-uefi@lists.linaro.org, edk2-devel@lists.01.org,
graeme.gregory@linaro.org, ard.biesheuvel@linaro.org,
guoheyi@huawei.com, wanghuiqiang@huawei.com,
zhangjinsong2@huawei.com, mengfanrong@huawei.com, waip23@126.com
Subject: Re: [PATCH edk2-platforms v1 13/14] Hisilicon/Library: Add OsBootLib
Date: Mon, 29 Jan 2018 11:16:21 +0000 [thread overview]
Message-ID: <20180129111621.qbtejpasxw6ttdnl@bivouac.eciton.net> (raw)
In-Reply-To: <2ced3021-fd0e-7551-c476-4468c915f82e@huawei.com>
On Sat, Jan 27, 2018 at 09:47:31AM +0800, Huangming (Mark) wrote:
> The problem is that OS boot option is lost after upgrade firmware.
> It is inconvenient for using. OsBootLib can help this.
>
> OsBootLib retain the options installed by OS, and create OS boot option
> after upgrade firmware if grub file is existed in EFI partition and in mUefiOsBootFiles,
> and delete redundant options in the same GPT.
"Redundant" such as if the user installs a new Linux distribution on
the same system without manually cleaning the ESP?
This type of system behaviour has been seen multiple times to break
installations in the real world.
Note: my main objections here are really with regards to:
1) the expectation that variable store is erased on fw update
2) automatically rewriting boot variables
If (1) was resolved, then I could potentially see a use for a
last-ditch fallback option (but even then, I don't think it should be
enabled by default).
Regards,
Leif
next prev parent reply other threads:[~2018-01-29 11:10 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-18 15:01 [PATCH edk2-platforms v1 00/14] Improve D0x platforms and bug fix Ming Huang
2018-01-18 15:01 ` [PATCH edk2-platforms v1 01/14] Hisilicon/D05: Add PPTT support Ming Huang
2018-01-20 10:16 ` Ard Biesheuvel
2018-01-22 9:16 ` Huangming (Mark)
2018-01-23 6:00 ` Huangming (Mark)
2018-01-22 13:53 ` Leif Lindholm
2018-01-22 14:15 ` Leif Lindholm
2018-01-24 13:49 ` graeme.gregory
2018-01-23 21:29 ` Jeremy Linton
2018-01-24 7:57 ` Huangming (Mark)
2018-01-25 5:56 ` Huangming (Mark)
2018-01-25 15:27 ` Jeremy Linton
2018-01-18 15:01 ` [PATCH edk2-platforms v1 02/14] Hisilicon D03/D05：Switch to Generic BDS driver Ming Huang
2018-01-20 10:27 ` Ard Biesheuvel
2018-01-22 18:38 ` Leif Lindholm
2018-01-23 6:03 ` Huangming (Mark)
2018-01-18 15:01 ` [PATCH edk2-platforms v1 03/14] Hisilicon D03/D05: Optimize the feature of BMC set boot option Ming Huang
2018-01-20 10:41 ` Ard Biesheuvel
2018-01-23 8:28 ` Huangming (Mark)
2018-01-23 10:28 ` Leif Lindholm
2018-01-23 10:51 ` Huangming (Mark)
2018-01-18 15:01 ` [PATCH edk2-platforms v1 04/14] Hisilicon D03/D05: Add capsule upgrade support Ming Huang
2018-01-20 10:50 ` Ard Biesheuvel
2018-01-23 8:53 ` Huangming (Mark)
2018-01-23 9:33 ` Ard Biesheuvel
2018-01-24 11:10 ` Huangming (Mark)
2018-01-24 11:21 ` Ard Biesheuvel
2018-01-25 0:53 ` Huangming (Mark)
2018-01-23 14:06 ` Leif Lindholm
2018-01-18 15:01 ` [PATCH edk2-platforms v1 05/14] Hisilicon D03/D05: Open SasPlatform source code Ming Huang
2018-01-20 10:57 ` Ard Biesheuvel
2018-01-23 11:01 ` Huangming (Mark)
2018-01-23 14:04 ` Leif Lindholm
2018-01-18 15:01 ` [PATCH edk2-platforms v1 06/14] Hisilicon D03/D05: Open SnpPlatform " Ming Huang
2018-01-20 11:00 ` Ard Biesheuvel
2018-01-23 11:01 ` Huangming (Mark)
2018-01-23 14:07 ` Leif Lindholm
2018-01-24 12:31 ` Huangming (Mark)
2018-01-24 13:47 ` Leif Lindholm
2018-01-18 15:01 ` [PATCH edk2-platforms v1 07/14] Hisilicon/Smbios: modify type 4 Ming Huang
2018-01-20 11:01 ` Ard Biesheuvel
2018-01-23 14:15 ` Leif Lindholm
2018-01-18 15:01 ` [PATCH edk2-platforms v1 08/14] Hisilicon/PCIe: Disable PCIe ASPM Ming Huang
2018-01-20 11:04 ` Ard Biesheuvel
2018-01-18 15:01 ` [PATCH edk2-platforms v1 09/14] Hisilicon/D05: Replace SP805Watchdog by WatchdogTimer driver Ming Huang
2018-01-20 11:05 ` Ard Biesheuvel
2018-01-23 14:21 ` Leif Lindholm
2018-01-18 15:01 ` [PATCH edk2-platforms v1 10/14] Hisilicon/D03: " Ming Huang
2018-01-20 11:05 ` Ard Biesheuvel
2018-01-23 14:21 ` Leif Lindholm
2018-01-18 15:01 ` [PATCH edk2-platforms v1 11/14] Hisilicon/D05/ACPI: Add ITS PXM Ming Huang
2018-01-20 11:06 ` Ard Biesheuvel
2018-01-18 15:01 ` [PATCH edk2-platforms v1 12/14] Hisilicon/D05/ACPI: Add Pcie, HNS and SAS PXM Ming Huang
2018-01-20 11:08 ` Ard Biesheuvel
2018-01-18 15:01 ` [PATCH edk2-platforms v1 13/14] Hisilicon/Library: Add OsBootLib Ming Huang
2018-01-20 11:11 ` Ard Biesheuvel
2018-01-23 10:23 ` Leif Lindholm
2018-01-27 1:47 ` Huangming (Mark)
2018-01-27 10:37 ` Ard Biesheuvel
2018-01-29 8:55 ` Huangming (Mark)
2018-01-29 10:19 ` Ard Biesheuvel
2018-01-29 11:16 ` Leif Lindholm [this message]
2018-02-07 21:16 ` Peter Jones
2018-02-11 6:03 ` Huangming (Mark)
2018-02-26 1:12 ` Guo Heyi
2018-01-18 15:01 ` [PATCH edk2-platforms v1 14/14] Hisilicon D03/D05: Update firmware version to 18.02 Ming Huang
2018-01-20 11:11 ` Ard Biesheuvel
2018-01-23 10:18 ` Leif Lindholm
2018-01-24 1:17 ` Huangming (Mark)
2018-01-24 7:54 ` Leif Lindholm
2018-01-22 13:26 ` [PATCH edk2-platforms v1 00/14] Improve D0x platforms and bug fix Leif Lindholm
2018-01-23 14:24 ` Leif Lindholm
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-list from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180129111621.qbtejpasxw6ttdnl@bivouac.eciton.net \
--to=devel@edk2.groups.io \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox