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From: Nicolas GIMMILLARO on 10 Dec 2009 12:11
BertieBigBollox(a)gmail.com wrote:
> Also, I recently changed the boot order in the BIOS (to remove CD boot
> as the first choice). Would this affect anything that grub was trying
> to do?

Possible, but not sure

I had the same problem (grub shows menu, sun copyright visible and then
reboot) one time when I changed my scsi controller or when I changed its
position in the PCI slots.

I don't know if you have the same kind of problem with the change of the
boot order ... but if it can help , to fix my problem, I had to do
theses things :


- Boot with failsafe choice in grub

Solaris searchs installed instance on the disk, and asks if it must be
mounted r/w on /a (answer : y)

- Write on a paper the path (/dev/dsk/cXtYdZsN) of the root slice
mounted on /a (the path is shown in the previous question about mounting
the instance in /a)

- Find its "hardware" path ( /pci@0,0/pci-ide(a)1f,1/ide@0/....) with a
"ls -al" in /dev/dsk (and not in /a/dev/dsk)

- Look in /a/etc/vfstab to see if /usr is on another slice, and mount it
in /a/usr if needed

- Run a chrooted shell in /a ( chroot /a /bin/ksh --login )

In the chrooted shell, run :

devfsadm -C

and then

devfsadm

- Check in bootenv.rc (must be in /platform/i86pc/boot or something like
that) that bootpath matches the "hardware" path of the /a mounted slice,
and fix it if needed

- Exit the chrooted shell

- Reboot with /a mounted (the shutdown process will update the
boot-archive on /a)


Hope it can help ...
Nicolas
From: Ian Collins on 10 Dec 2009 13:39
BertieBigBollox(a)gmail.com wrote:
> Had a working system. Booted up fine but now it goes into grub,
> attempts to boot, displays sun copyright lines and then reboots and
> loops around.
>
> Grub entries are:-
> findroot (rootfs0,0,a)
> kernel /platform/i86pc/multiboot
> module /platform/i86pc/boot-archive
>
> Also, got an entry in grub for failsafe solaris boot and this boots up
> ok:-
> findroot (rootfs0,0,a)
> kernel /boot/multiboot kernel/unix -s
> module /boot/x86.miniroot-safe
>
> Its on a laptop and I've got a feeling the user may have been powering
> off without shutting down properly and that this has corrupt
> something.
>
> Anyway, is there a command to fixboot or something?

Edit the grub entry to enter kmdb on boot. See

http://blogs.sun.com/dmick/entry/diagnosing_kernel_hangs_panics_with

--
Ian Collins
From: cindy on 10 Dec 2009 15:46
On Dec 10, 7:43 am, "BertieBigBol...(a)gmail.com"
<bertiebigbol...(a)gmail.com> wrote:
> Had a working system. Booted up fine but now it goes into grub,
> attempts to boot, displays sun copyright lines and then reboots and
> loops around.
>
> Grub entries are:-
> findroot (rootfs0,0,a)
> kernel /platform/i86pc/multiboot
> module /platform/i86pc/boot-archive
>
> Also, got an entry in grub for failsafe solaris boot and this boots up
> ok:-
> findroot (rootfs0,0,a)
> kernel /boot/multiboot kernel/unix -s
> module /boot/x86.miniroot-safe
>
> Its on a laptop and I've got a feeling the user may have been powering
> off without shutting down properly and that this has corrupt
> something.
>
> Anyway, is there a command to fixboot or something?
>
> Or would I be better off booting from sol10 cd and doing an inplace
> upgrade?

Which Solaris release is this? Sounds to me like your boot archives
need to be updated, depending on the Solaris release. You might
review the bootadm update-archive command, described here:

http://docs.sun.com/app/docs/doc/817-1985/gglaj?a=view

Or, do a google search of bootadm update to see other examples
that might apply to your scenario.

Cindy

Cindy
From: BertieBigBollox on 11 Dec 2009 04:32
On Dec 10, 8:46 pm, cindy <cindy.swearin...(a)sun.com> wrote:
> On Dec 10, 7:43 am, "BertieBigBol...(a)gmail.com"
>
>
>
>
>
> <bertiebigbol...(a)gmail.com> wrote:
> > Had a working system. Booted up fine but now it goes into grub,
> > attempts to boot, displays sun copyright lines and then reboots and
> > loops around.
>
> > Grub entries are:-
> > findroot (rootfs0,0,a)
> > kernel /platform/i86pc/multiboot
> > module /platform/i86pc/boot-archive
>
> > Also, got an entry in grub for failsafe solaris boot and this boots up
> > ok:-
> > findroot (rootfs0,0,a)
> > kernel /boot/multiboot kernel/unix -s
> > module /boot/x86.miniroot-safe
>
> > Its on a laptop and I've got a feeling the user may have been powering
> > off without shutting down properly and that this has corrupt
> > something.
>
> > Anyway, is there a command to fixboot or something?
>
> > Or would I be better off booting from sol10 cd and doing an inplace
> > upgrade?
>
> Which Solaris release is this? Sounds to me like your boot archives
> need to be updated, depending on the Solaris release. You might
> review the bootadm update-archive command, described here:
>
> http://docs.sun.com/app/docs/doc/817-1985/gglaj?a=view
>
> Or, do a google search of bootadm update to see other examples
> that might apply to your scenario.
>
> Cindy
>
> Cindy- Hide quoted text -
>
> - Show quoted text -

Cindy,

Thanks. Already tried that.
From: BertieBigBollox on 11 Dec 2009 04:33
On Dec 10, 4:20 pm, hume.spamfil...(a)bofh.ca wrote:
> In comp.unix.solaris BertieBigBol...(a)gmail.com <bertiebigbol...(a)gmail.com> wrote:
>
> > Also, I recently changed the boot order in the BIOS (to remove CD boot
> > as the first choice). Would this affect anything that grub was trying
>
> That shouldn't matter.
>
> Also, if your failsafe boot option works okay, it shouldn't be necessary to
> boot from DVD/CD.  Just boot from failsafe, and do your checks from
> maintenance mode.
>
> --
> Brandon Hume    - hume -> BOFH.Ca,http://WWW.BOFH.Ca/

fsck reports no problems....
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