All
I gave updated the code and now provide an inotify based daemon to sync
alternate s - and a systemd service unit to run it.
I would very much appreciate if others ran this - by using the test
option it does nothing but prints what would happen. And can be run as
non-root user.
It is
On 3/7/23 03:50, Óscar García Amor wrote:
El lun, 06-03-2023 a las 21:30 -0500, Jonathan Whitlock escribió:
This is about having a computer that is resilient to root drive failure.
This is in addition to doing backups, certainly not a replacement :)
gene
El lun, 06-03-2023 a las 21:30 -0500, Jonathan Whitlock escribió:
> You really can't replace incremental backups...
I have always understood having a RAID1 as an immediate disaster-
recovery system in case of catastrophic disk failure. It is obvious
that this will never replace backups as the purp
You really can't replace incremental backups...
On 3/4/23 12:56, Genes Lists wrote:
I know there's lots of info available about dual boot - but not much I
could find on Dual Root.
What is Dual Root?
This is a machine with 2 "root" disks where the second one is a hot
standby - in event o
On 3/4/23 12:56, Genes Lists wrote:
I know there's lots of info available about dual boot - but not much I
could find on Dual Root.
What is Dual Root?
This is a machine with 2 "root" disks where the second one is a hot
standby - in event of root disk failure the second disk can be boote
On 3/6/23 02:50, Óscar García Amor wrote:
Interesting, I'll take a look at it when you upload the code.
I'd appreciate wider testing on the code - we all know that just because
it works for me, doesn't mean it will work everywhere with certainty.
It would be super helpful if others can te
El dom, 05-03-2023 a las 18:11 -0500, Genes Lists escribió:
> Do you know if it would work to use separate /boot partitions, as I
> mention above, (each XBOOTLDR) but raid-1 them together with btrfs?
> I imagine this would be fine, but have not tested to confirm.
To tell you the truth, since ESP
I have updated the notes which now shows the original way but also the
approach suggested by Oscar (thank you) - this is a superior method but
bit more painful for existing installs.
This way has on each disk along with btrfs raid1 for the rest
basically.
I have a working example doing this
On 3/5/23 07:11, Óscar García Amor wrote:
In fact at hook level you can put one like in the example of the manual
ml
Yes I agree that Hooks are useful, but they do only catch things on
package updates as far as I know. If you want to catch manual changes,
like an edit to a loader file, then
On 3/5/23 07:11, Óscar García Amor wrote:
Thanks Oscar - I edited my notes to show this as the preferred approach.
Still needs more write up but I thought it best to get it up sooner than
later.
Do you know if it would work to use separate /boot partitions, as I
mention above, (each XBOOTLDR)
El dom, 05-03-2023 a las 06:04 -0500, Genes Lists escribió:
>
> [..]
> I would keep separate boot partition(s) - using XBOOTLDR - these can
> also be mirrored using btrfs. As you said, you now only need to sync
> and with kernels and initrds on separate boot, the will
> rarely change.
>
Per
On 3/5/23 05:13, Óscar García Amor wrote:
...
The method is simple as you simply need two partitions on the two
disks. The first one on each disk is the ESP and the second one is the
one you are going to use for the btrfs raid. Then you simply mount the
raid1 between both partitions btrfs[1] and
El sáb, 04-03-2023 a las 12:56 -0500, Genes Lists escribió:
>
> I know there's lots of info available about dual boot [..]
>
For me there is an infinitely simpler solution to have a system in
mirror mode (obviously assuming that you can not mount a hardware
RAID1, because if not, I completely di
On 3/4/23 18:22, Genes Lists wrote:
But your cautionary comment is definitely something to keep an eye on.
I already have these concerns noted at the bottom of the notes - since
you pointed it out, It would be better for me to highlight them and
move them earlier in the notes.
thanks aga
On 3/4/23 18:08, Łukasz Michalski wrote:
I have this setup on all servers that do not have battery backed HW raid
cards and use mdadm there. I use systemd-boot as bootloader. Works well
and can be done on existing system with just a single reboot. It is not
easy - you have to create degraded r
On 3/4/23 19:37, Genes Lists wrote:
On 3/4/23 13:21, Uwe Sauter wrote:
The usual Linux MD-RAID can have its metadata placed on different
positions in the partition (see man (8) mdadm, option "-e, --metadata").
Knowing this it is no problem to create a partition on each disk of
type EF00,
On 3/4/23 13:21, Uwe Sauter wrote:
The usual Linux MD-RAID can have its metadata placed on different
positions in the partition (see man (8) mdadm, option "-e, --metadata").
This is intriguing for sure but to be honest it has a bit of a brittle,
hacky feel to it.
My own preference is to
On 3/4/23 13:21, Uwe Sauter wrote:
The usual Linux MD-RAID can have its metadata placed on different
positions in the partition (see man (8) mdadm, option "-e, --metadata").
Knowing this it is no problem to create a partition on each disk of type
EF00, create a RAID1 with metadata version
Am 04.03.23 um 19:05 schrieb Genes Lists:
On 3/4/23 13:00, Uwe Sauter wrote:
Hi Gene,
out of curiosity: where do you see the advantages of such a setup compared to
having your root filesystem on a RAID1?
,
Could be wrong, but I don't believe the is on RAID1 is it?
Dual root is dual eve
On 3/4/23 13:05, Genes Lists wrote:
Could be wrong, but I don't believe the is on RAID1 is it?
Dual root is dual everything - esp, root, boot, the whole lot.
You can clearly have an esp on each raid disk, so this could work as
well - recovery might be little different than what I did but se
On 3/4/23 13:00, Uwe Sauter wrote:
Hi Gene,
out of curiosity: where do you see the advantages of such a setup
compared to having your root filesystem on a RAID1?
,
Could be wrong, but I don't believe the is on RAID1 is it?
Dual root is dual everything - esp, root, boot, the whole lot.
Hi Gene,
out of curiosity: where do you see the advantages of such a setup compared to
having your root filesystem on a RAID1?
Regards,
Uwe
Am 04.03.23 um 18:56 schrieb Genes Lists:
I know there's lots of info available about dual boot - but not much I could
find on Dual Root.
Wha
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