On 2018-09-19 15:08, Goffredo Baroncelli wrote:
On 18/09/2018 19.15, Goffredo Baroncelli wrote:
b. The bootloader code, would have to have sophisticated enough Btrfs
knowledge to know if the grubenv has been reflinked or snapshot,
because even if +C, it may not be valid to overwrite, and COW
On 18/09/2018 19.15, Goffredo Baroncelli wrote:
>> b. The bootloader code, would have to have sophisticated enough Btrfs
>> knowledge to know if the grubenv has been reflinked or snapshot,
>> because even if +C, it may not be valid to overwrite, and COW must
>> still happen, and there's no way the
18.09.2018 22:11, Austin S. Hemmelgarn пишет:
> On 2018-09-18 14:38, Andrei Borzenkov wrote:
>> 18.09.2018 21:25, Austin S. Hemmelgarn пишет:
>>> On 2018-09-18 14:16, Andrei Borzenkov wrote:
18.09.2018 08:37, Chris Murphy пишет:
> On Mon, Sep 17, 2018 at 11:24 PM, Andrei Borzenkov
>
Chris Murphy posted on Tue, 18 Sep 2018 13:34:14 -0600 as excerpted:
> I've run into some issue where grub2-mkconfig and grubby, can change the
> grub.cfg, and then do a really fast reboot without cleanly unmounting
> the volume - and what happens? Can't boot. The bootloader can't do log
> replay
On Mon, Sep 17, 2018 at 9:44 PM, Chris Murphy wrote:
> https://btrfs.wiki.kernel.org/index.php/FAQ#Does_grub_support_btrfs.3F
>
> Does anyone know if this is still a problem on Btrfs if grubenv has
> xattr +C set? In which case it should be possible to overwrite and
> there's no csums that are
On Tue, Sep 18, 2018 at 1:11 PM, Goffredo Baroncelli wrote:
>> I think it's a problem, and near as I can tell it'll be a problem for
>> all kinds of complex storage. I don't see how the bootloader itself
>> can do an overwrite onto raid5 or raid6.
>
>
>> That's certainly supported by GRUB for
On Tue, Sep 18, 2018 at 1:01 PM, Andrei Borzenkov wrote:
> 18.09.2018 21:57, Chris Murphy пишет:
>> On Tue, Sep 18, 2018 at 12:16 PM, Andrei Borzenkov
>> wrote:
>>> 18.09.2018 08:37, Chris Murphy пишет:
>>
The patches aren't upstream yet? Will they be?
>>>
>>> I do not know.
On 18/09/2018 20.52, Chris Murphy wrote:
> On Tue, Sep 18, 2018 at 11:15 AM, Goffredo Baroncelli
> wrote:
>> On 18/09/2018 06.21, Chris Murphy wrote:
>>> b. The bootloader code, would have to have sophisticated enough Btrfs
>>> knowledge to know if the grubenv has been reflinked or snapshot,
>>>
On 2018-09-18 15:00, Chris Murphy wrote:
On Tue, Sep 18, 2018 at 12:25 PM, Austin S. Hemmelgarn
wrote:
It actually is independent of /boot already. I've got it running just fine
on my laptop off of the EFI system partition (which is independent of my
/boot partition), and thus have no issues
On 2018-09-18 14:57, Chris Murphy wrote:
On Tue, Sep 18, 2018 at 12:16 PM, Andrei Borzenkov wrote:
18.09.2018 08:37, Chris Murphy пишет:
The patches aren't upstream yet? Will they be?
I do not know. Personally I think much easier is to make grub location
independent of /boot, allowing
On 2018-09-18 14:38, Andrei Borzenkov wrote:
18.09.2018 21:25, Austin S. Hemmelgarn пишет:
On 2018-09-18 14:16, Andrei Borzenkov wrote:
18.09.2018 08:37, Chris Murphy пишет:
On Mon, Sep 17, 2018 at 11:24 PM, Andrei Borzenkov
wrote:
18.09.2018 07:21, Chris Murphy пишет:
On Mon, Sep 17, 2018
On Tue, Sep 18, 2018 at 12:25 PM, Austin S. Hemmelgarn
wrote:
> It actually is independent of /boot already. I've got it running just fine
> on my laptop off of the EFI system partition (which is independent of my
> /boot partition), and thus have no issues with handling of the grubenv file.
>
18.09.2018 21:57, Chris Murphy пишет:
> On Tue, Sep 18, 2018 at 12:16 PM, Andrei Borzenkov
> wrote:
>> 18.09.2018 08:37, Chris Murphy пишет:
>
>>> The patches aren't upstream yet? Will they be?
>>>
>>
>> I do not know. Personally I think much easier is to make grub location
>> independent of
On Tue, Sep 18, 2018 at 12:16 PM, Andrei Borzenkov wrote:
> 18.09.2018 08:37, Chris Murphy пишет:
>> The patches aren't upstream yet? Will they be?
>>
>
> I do not know. Personally I think much easier is to make grub location
> independent of /boot, allowing grub be installed in separate
On Tue, Sep 18, 2018 at 11:15 AM, Goffredo Baroncelli
wrote:
> On 18/09/2018 06.21, Chris Murphy wrote:
>> b. The bootloader code, would have to have sophisticated enough Btrfs
>> knowledge to know if the grubenv has been reflinked or snapshot,
>> because even if +C, it may not be valid to
18.09.2018 21:25, Austin S. Hemmelgarn пишет:
> On 2018-09-18 14:16, Andrei Borzenkov wrote:
>> 18.09.2018 08:37, Chris Murphy пишет:
>>> On Mon, Sep 17, 2018 at 11:24 PM, Andrei Borzenkov
>>> wrote:
18.09.2018 07:21, Chris Murphy пишет:
> On Mon, Sep 17, 2018 at 9:44 PM, Chris Murphy
On 2018-09-18 14:16, Andrei Borzenkov wrote:
18.09.2018 08:37, Chris Murphy пишет:
On Mon, Sep 17, 2018 at 11:24 PM, Andrei Borzenkov wrote:
18.09.2018 07:21, Chris Murphy пишет:
On Mon, Sep 17, 2018 at 9:44 PM, Chris Murphy wrote:
18.09.2018 08:37, Chris Murphy пишет:
> On Mon, Sep 17, 2018 at 11:24 PM, Andrei Borzenkov
> wrote:
>> 18.09.2018 07:21, Chris Murphy пишет:
>>> On Mon, Sep 17, 2018 at 9:44 PM, Chris Murphy
>>> wrote:
https://btrfs.wiki.kernel.org/index.php/FAQ#Does_grub_support_btrfs.3F
Does
On 18/09/2018 06.21, Chris Murphy wrote:
> b. The bootloader code, would have to have sophisticated enough Btrfs
> knowledge to know if the grubenv has been reflinked or snapshot,
> because even if +C, it may not be valid to overwrite, and COW must
> still happen, and there's no way the code in
On Mon, Sep 17, 2018 at 11:24 PM, Andrei Borzenkov wrote:
> 18.09.2018 07:21, Chris Murphy пишет:
>> On Mon, Sep 17, 2018 at 9:44 PM, Chris Murphy
>> wrote:
>>> https://btrfs.wiki.kernel.org/index.php/FAQ#Does_grub_support_btrfs.3F
>>>
>>> Does anyone know if this is still a problem on Btrfs if
18.09.2018 07:21, Chris Murphy пишет:
> On Mon, Sep 17, 2018 at 9:44 PM, Chris Murphy wrote:
>> https://btrfs.wiki.kernel.org/index.php/FAQ#Does_grub_support_btrfs.3F
>>
>> Does anyone know if this is still a problem on Btrfs if grubenv has
>> xattr +C set? In which case it should be possible to
On Mon, Sep 17, 2018 at 9:44 PM, Chris Murphy wrote:
> https://btrfs.wiki.kernel.org/index.php/FAQ#Does_grub_support_btrfs.3F
>
> Does anyone know if this is still a problem on Btrfs if grubenv has
> xattr +C set? In which case it should be possible to overwrite and
> there's no csums that are
https://btrfs.wiki.kernel.org/index.php/FAQ#Does_grub_support_btrfs.3F
Does anyone know if this is still a problem on Btrfs if grubenv has
xattr +C set? In which case it should be possible to overwrite and
there's no csums that are invalidated.
I kinda wonder if in 2018 it's specious for,
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