Re: How do I change disk ?

[Pierre Couderc <pierre@couderc.eu>]

Sorry to insist... but even for  btrfs RAID1 disks of différent size ?

OK, I shall try but I am surprised it is so simple... ;)


On 1/11/22 20:01, Hans wrote:
> Am Dienstag, 11. Januar 2022, 17:22:08 CET schrieb Pierre Couderc:
> Yes, should be so by default.
>
> Good luck!
>
> Hans
> > Thank you. I am surprised;  update-grub is enough to install grub
> > correctly on all drives...??
> >
> > On 1/11/22 11:24, Hans wrote:
> > > Am Dienstag, 11. Januar 2022, 04:38:36 CET schrieb Pierre Couderc:
> > >
> > > My way:
> > >
> > >
> > > - Boot with a live cd with clonezilla on it (i.e. clonezilla live)
> > >
> > >
> > > - clone the complete harddrive to the new one. Pay attentention, that
> > > the new one must be equal or bigger than the source.
> > >
> > >
> > > - Use another live cd with gparted on it and move or resize the
> > > partitions.
> > >
> > >
> > >
> > > ------------------------------------------------------------------------
> > >
> > > Second way (more work and more complicated):
> > >
> > >
> > > - Boot with a linux live system (debian live, Knoppix whatever)
> > >
> > >
> > > - mount the old one to a new mountpoint in root, like /disk1
> > >
> > >
> > > - partition the new drive to your needs manually
> > >
> > >
> > > - mount the new one to a new mountpoint in root, like /disk2
> > >
> > >
> > > - use rsync for transferring data to the new one
> > >
> > >
> > > - reboot to your old system with the connected new harddrive
> > >
> > >
> > > - install grub on the new harddrive (grub --install /dev/sdb or
> > > update-grub might do it)
> > >
> > >
> > >
> > > ------------------------------------------------------------------------
> > >
> > > Have fun
> > >
> > >
> > >
> > > Best
> > >
> > >
> > > Hans
> > >
> > > > I have a btrfs RAID1 system. I did install it with /dev/sda disk (efs on
> > > >
> > > > sda1, btrfs on sda2). Then, after install,  I added  a sdb disk (vfat on
> > > >
> > > > sdb1, btrfs on sdb2) and I did  btrfs balance.
> > > >
> > > >
> > > >
> > > > As /dev/sda is now old, I want to change it. I know btrfs procedures but
> > > >
> > > > I do not know grub procedures.
> > > >
> > > >
> > > >
> > > > I suppose I should install "some grub thing" on sdb1 and inform the
> > > >
> > > > system to boot on sdb1. How to do that ?
> > > >
> > > >
> > > >
> > > > Is there a good tutorial that I have not found ?
> > > >
> > > >
> > > >
> > > > Is it possible to have a system booting automatically on sdb1 if sda1
> > > >
> > > > fails ?
> > > >
> > > >
> > > >
> > > > In fact I did add later an identical sdc disk...