[gentoo-user] Re: raid1 grub ext4

[James <wireless@tampabay.rr.com>]

Florian Philipp <lists <at> binarywings.net> writes:


> I don't think the missing partition table is your problem.

OK, let's assume you are correct, ignoring .....

> However, you might be onto something with the changed sector offset. But
> I don't know enough of this to help you.

Well if I have to reformat I look everything on the install.
Not ready to start over yet.....
So after a fresh reboot I see:
livecd ~ # cat /proc/mdstat
Personalities : [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] 
md125 : active (auto-read-only) raid1 sdb3[1] sda3[0]
      1948226512 blocks super 1.2 [2/2] [UU]
md126 : active (auto-read-only) raid1 sda2[0] sdb2[1]
      5022708 blocks super 1.2 [2/2] [UU]
md127 : active (auto-read-only) raid1 sda1[0] sdb1[1]
      262132 blocks super 1.2 [2/2] [UU]

If you look at previous posts of mine on the md<part>
names, and focus on the sized, you'll see something
very troubling...

The minimal CD keeps using the md125-127 names but assigns
them to the different partitions:
NOW
/boot is: md127 : active (auto-read-only) raid1 sda1[0] sdb1[1]
      262132 blocks super 1.2 [2/2] [UU]

/     is md125 : active (auto-read-only) raid1 sdb3[1] sda3[0]
      1948226512 blocks super 1.2 [2/2] [UU]

swap  is md126 : active (auto-read-only) raid1 sda2[0] sdb2[1]
      5022708 blocks super 1.2 [2/2] [UU]

Something is morphing the numbers each time I reboot
with minCD....

So no what I put in /etc/fstab, it's going to be wrong.

grub cannot find the partition with the kernel? OR
is this not a problem? 

Plus, since  I'm never able to write the grub stuffage to the
MBR, grub nor the kernel every run.....

after rebooting I tried this step to correct for the metadata
problem you previously posted about:

mdadm --create /dev/md1 --level=1 --raid-devices=2 --metadata=0.90 /dev/sda1
/dev/sdb1
mdadm: super0.90 cannot open /dev/sda1: Device or resource busy
mdadm: /dev/sda1 is not suitable for this array.
mdadm: super0.90 cannot open /dev/sdb1: Device or resource busy
mdadm: /dev/sdb1 is not suitable for this array.

mdadm --create /dev/md127 --level=1 --raid-devices=2 --metadata=0.90 /dev/sda1
/dev/sdb1
mdadm: super0.90 cannot open /dev/sda1: Device or resource busy
mdadm: /dev/sda1 is not suitable for this array.
mdadm: super0.90 cannot open /dev/sdb1: Device or resource busy
mdadm: /dev/sdb1 is not suitable for this array.