On 02/27/17 08:42 AM, Alexander Pyhalov wrote:
Hello, guys.
Please take the notice that fixes on illumos loader did reveal
additional issues, resulted in inability to boot after updating
Openindiana Hipster on MBR disk installs.
Just to mention, It is described on Wiki article under:
https://wiki.openindiana.org/oi/MBR+reinstall+after+illumos+loader+update
if there would be any changes in the future.
Just take care to apply it twice, once after update and once again after
reboot, as explained. Cheers.
Who is affected:
Fresh installs with 20161030 OI hipster snapshot usb/ISO using MBR
partition/slice install, using illumos loader
Who is not affected:
Older 20160421 usb/ISO and earlier installs still using GRUB1
Full-disk installs and GPT installs for rpool.
How problem appears:
Problem appears by issuing regular 'pkg update ' procedure, with
affect of having unbootable system after update and restart.
Workaround1 is done right after update, before reboot, so you don't
experience any inability of boot after update, so that nothing happens
if you reinstall loader upon update and BEFORE restart.
Workaround2 is there if you already restarted after update and you
have unbootable system.
Workaround1:
Bootblock update has to be performed twice, after regular pkg update
and before reboot and after reboot again.
-find the name of your new active updated BE:
$ beadm list
--
oi-hipster-87 R / 36.8G static
2017-02-25 19:07
-mount new BE into /mnt dir, so we can install new loader into MBR:
(assume root privileges by su, sudo or pfexec)
$ pfexec bash
# beadm mount oi-hipster-87 /mnt
-Install new illumos loader from new BE into MBR to be able to boot
from HD again:
# bootadm install-bootloader -MfvR /mnt
The bootadm command above will reinstall boot code, using boot
programs from /mnt/boot, using verbose mode, so you can see the MBR
code is also updated.
-unmount new BE from /mnt dir:
# beadm unmount oi-hipster-87
# shutdown -y -g 0 -i 6
After reboot, again re-install boot code as priviledged user: (assume
root privileges by su, sudo or pfexec)
$ pfexec bash
# bootadm install-bootloader -Mfv
Because this bootadm command is run from updated BE and the patched
installboot command is used, MBR is updated to read partition boot
record, and future "pkg update" command does not need any special
workaround.
Workaround2:
If you already experienced inability to boot after update, you need to
boot from live USB/DVD media into your new updated BE and reintall
loader:
-Use bootable USB/ISO disk to boot from media other then HD (by
selecting it to be first bootable media in motherboard settings)
-hit 'ESC' key to get loader "ok" prompt and list Boot
Environments(BE) (rpool is name of boot pool):
ok beadm list zfs:rpool
--
oi-hipster-87 NR / 36.8G static
2017-02-25 19:07
-Activate new BE to boot from (where beadm_name is the new BE created
after update):
ok beadm activate oi-hipster-87 zfs:rpool
-Boot into new BE:
ok boot
After booting into updated BE, you would need to issue this command to
reinstall loader on HD MBR (so that problem is resolved for the next
reboot):
-Install new illumos loader from new BE into MBR to be able to boot
from HD again (as the priviledged user):
$ pfexec bash
# bootadm install-bootloader -Mfv
After that you can safely update and restart.
Thank you for your understanding, since loader is part of the illumos
but still work in progress, and MBR booting problem slipped in
testing, but is now safely overcomed.
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