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[Bug 1017761] New: [yast2/bootloader]: Make it possible to save the bootloader to different disks for redundancy
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Mon, 02 Jan 2017 14:21:51 +0000
  • Message-id: <bug-1017761-21960@http.bugzilla.opensuse.org/>
http://bugzilla.opensuse.org/show_bug.cgi?id=1017761


Bug ID: 1017761
Summary: [yast2/bootloader]: Make it possible to save the
bootloader to different disks for redundancy
Classification: openSUSE
Product: openSUSE Distribution
Version: Leap 42.2
Hardware: x86-64
OS: openSUSE 42.2
Status: NEW
Severity: Enhancement
Priority: P5 - None
Component: YaST2
Assignee: yast2-maintainers@xxxxxxx
Reporter: richard.bos@xxxxxxxxx
QA Contact: jsrain@xxxxxxxx
Found By: ---
Blocker: ---

To allow a full duplex disk system (e.g. a two disk system with RAID-1 for /
and swap (if needed for /srv and /home as well)) to boot from either disk, the
bootloader config must be installed at both disks. So when the one of the disks
breaks, the disk and bootloader redundancy make it possible to boot the system
even when the one the disk fails.

For the interested, it's like a bit as described in this article:

http://sysadmin.compxtreme.ro/how-to-migrate-a-single-disk-linux-system-to-software-raid1/

In the article reference above, the bootloader is installed on two disks as
follows:
grub2-mkconfig
grub-install /dev/sda
grub-install /dev/sdb

In YaST2/bootloader there is a disk section, but it does not seem to cover the
use case described above.
https://doc.opensuse.org/documentation/leap/reference/html/book.opensuse.reference/cha.grub2.html#sec.grub2.yast2.config.order

I think that it is an important use case for SLE as well (redundancy)...

Would it be possible to add such a functionality (e.g.) to YaST2/bootloader:
Install bootloader at:
[x] sda
[x] sdb
[x] when there are more disks

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