Putting aside briefly trying to get grub installed onto an md0 on my sparc,
I tried just getting it on a single device that would then load up the
zfs filesystems. First, getting it running on sdd, is working. At least,
it works until I try to install onto sda, which seems to (often, though maybe
not 100% of the time) mess up the grub on sdd as well. :-/
I have sdd on thie T5120, which has 4 identical disks, and I got grub installed
onto it. /boot is in sdd1, / in sdd2, and others.
Model: SEAGATE ST914603SSUN146G (scsi)
Disk /dev/sdd: 147GB
Sector size (logical/physical): 512B/512B
Partition Table: sun
Disk Flags:
Number Start End Size File system Flags
1 0.00B 312MB 312MB ext2 boot
2 313MB 12.3GB 12.0GB ext4
4 30.1GB 46.5GB 16.5GB linux-swap(v1)
5 46.5GB 147GB 100GB ext4
Then I broke down the md that I'd put across sda1 and sdb1, and just have
those as ext2 filesystems. ZFS on the rest of the disk.
Model: SEAGATE ST914603SSUN146G (scsi)
Disk /dev/sda: 147GB
Sector size (logical/physical): 512B/512B
Partition Table: sun
Disk Flags:
Number Start End Size File system Flags
1 0.00B 502MB 502MB ext2 boot
2 502MB 147GB 146GB zfs
And, the grub/grub.cfg in that /boot looks right when I built it. Booting
off of disk3, sdd, has been working for a while. So, to try sda again, I ran
(while booted up on my installation on sdd):
grub-install --force --skip-fs-probe /dev/sda1
But, unlike the grub on sdd1, it doesn't boot. Trying to load up from
OBP I see:
-----
{0} ok boot disk0
Boot device: /pci@0/pci@0/pci@2/scsi@0/disk@0 File and args:
GRUB Loading kernel....
error: unable to open /pci@0/pci@0/pci@1/pci@0/pci@1/pci@0/usb@0,2/hub@4/device@
4/st.
error: unable to open /pci@0/pci@0/pci@1/pci@0/pci@1/pci@0/usb@0,2/hub@4/device@
4/st.
error: unable to open /pci@0/pci@0/pci@1/pci@0/pci@1/pci@0/usb@0,2/hub@4/device@
4/st.
error: unable to open /pci@0/pci@0/pci@1/pci@0/pci@1/pci@0/usb@0,2/hub@4/device@
4/st.
UNKNOWN DEVICE: ieee1275//pci@0/pci@0/pci@2/scsi@0/disk@3\,0:a
error: unable to open /pci@0/pci@0/pci@1/pci@0/pci@1/pci@0/usb@0,2/hub@4/device@
4/st.
error: unable to open /pci@0/pci@0/pci@1/pci@0/pci@1/pci@0/usb@0,2/hub@4/device@
4/st.
ERROR: /pci@0: Last Trap: Fast Data Access MMU Miss
{0} ok
-----
Now, if I then try to boot disk3 again, which has been working just fine since
the last time I recovered it by reinstalling grub using the rescue CD, I see:
-----
{0} ok boot disk3
Boot device: /pci@0/pci@0/pci@2/scsi@0/disk@3 File and args:
GRUB ERROR: Last Trap: Illegal Instruction
{0} ok
-----
(tried consecutive "boot disk3", with same results each time.)
Rebooting from a rescue cd and executing a shell in sdd2 (with sdd1),
I can run:
root@t5120:/# grub-install --force --skip-fs-probe /dev/sdd1
Installing for sparc64-ieee1275 platform.
grub-install: warning: Discarding improperly nested partition
(hostdisk//dev/sdd,sun1,sun2).
grub-install: warning: Discarding improperly nested partition
(hostdisk//dev/sdd,sun1,sun4).
grub-install: warning: Discarding improperly nested partition
(hostdisk//dev/sdd,sun1,sun5).
grub-install: warning: Attempting to install GRUB to a disk with multiple
partition labels. This is not supported yet..
grub-install: warning: Embedding is not possible. GRUB can only be installed
in this setup by using blocklists. However, blocklists are UNRELIABLE and
their use is discouraged..
Installation finished. No error reported.
root@t5120:/#
..and then reboot, and it will load up fine from sdd/disk3.
Any idea why grub-install onto sda1 isn't working for me? Or more, how an
attempt there could be messing up the grub installation on sdd1?
Appreciate any ideas or pointers. Thanks all.
- Chris
