Difference between revisions of "Upgrading 12SP4 LPAR to 15SP1"
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To upgrade 12SP4 LPAR to 15SP1 use: | To upgrade 12SP4 LPAR to 15SP1 use: | ||
# Before upgrade ensure | # Before upgrade ensure | ||
## There is enough free space in / (At least | ## There is enough free space in / (At least 25GB. 5GB is definitely less and leads to upgrade failure). | ||
## The system is registered with latest registration codes | ## The system is registered with latest registration codes. See SuSEConnect commands at [[Update Suse from SLES 12 SP2 to SLES 15 SP2 with 100MB /boot]] | ||
## Entire LPAR image level backup is taken via [[Backup of LPAR by booting into Suse installer DVD rescue mode]]. '''Expect enough surprises during upgrade.''' | ## Entire LPAR image level backup is taken via [[Backup of LPAR by booting into Suse installer DVD rescue mode]]. '''Expect enough surprises during upgrade.''' | ||
# Connect two virtual optical drivers (one for installer and one for packages). See [[Add Virtual Optical Media to LPAR with desired OS ISO image]] | # Connect two virtual optical drivers (one for installer and one for packages). See [[Add Virtual Optical Media to LPAR with desired OS ISO image]] | ||
| Line 24: | Line 24: | ||
#: We can install required packages later after upgrade | #: We can install required packages later after upgrade | ||
# Wait for upgrade to complete | # Wait for upgrade to complete | ||
=Upgrading x86_64 architecture of SLES= | |||
In case of x86_64 architecture instead of power, we can use the DVD images (700MB / 1.2GB) and update offline. In this case the upgrade paths supported eg 12SP3 to 15SP1 might be different then online upgrade. To enable this we may have to give boot options: | |||
<pre> | |||
Media_upgrade=1 | |||
</pre> | |||
while booting using 15SP1 DVD. | |||
Further, during such upgrade we may get prompted to solve package / extension conflicts. In such case we can choose to ignore ('''Strictly based on your requirement''') some packages such as: | |||
* SLES_BCL | |||
* SLED | |||
* SLE_HPC | |||
* SLE_RT | |||
* Suse-Manager-* | |||
In case of conflict between SLES-15 and SLES_SAP-15 choose: | |||
* Break product SLES-15.1 by ignoring some of its dependencies | |||
Finally in conflict between SLES_SAP-12.3 and SLES-15.1 ideally deinstall SLES_SAP-12.3. | |||
Similarly in case of conflict between SLES_SAP-15 and SLES-15 choose to not install SLES_SAP-15. | |||
=Snapshot issue while upgrading= | |||
It is possible to get error "Filesystem snapshot could not be created" during upgrade. To solve this used: | |||
# Press Ctrl+Atl+F2 shortcut and '''as shown in error message''' run save_y2logs | |||
# SCP logs to a different machine | |||
# In logs open YaST2/y2log to understand the issue. Example logs might be: <source type="bash"> | |||
2023-06-22 03:42:38 <1> SV01(4028) [Ruby] yast2/fs_snapshot.rb:317 Executing: "/usr/lib/snapper/installation-helper --step 5 --root-prefix=/mnt --snapshot-type pre --description before\ update --userdata "important=yes" --cleanup number" | |||
2023-06-22 03:42:38 <3> SV01(4028) [bash] ShellCommand.cc(shellcommand):78 .snapshots must not be world-writable | |||
2023-06-22 03:42:38 <3> SV01(4028) [bash] ShellCommand.cc(shellcommand):78 reading failed | |||
2023-06-22 03:42:38 <3> SV01(4028) [bash] ShellCommand.cc(shellcommand):78 .snapshots must not be world-writable | |||
2023-06-22 03:42:38 <3> SV01(4028) [bash] ShellCommand.cc(shellcommand):78 terminate called after throwing an instance of 'snapper::IOErrorException' | |||
2023-06-22 03:42:38 <3> SV01(4028) [bash] ShellCommand.cc(shellcommand):78 what(): .snapshots must not be world-writable | |||
2023-06-22 03:42:38 <3> SV01(4028) [Ruby] yast2/fs_snapshot.rb:323 Snapshot could not be created: /usr/lib/snapper/installation-helper --step 5 --root-prefix=/mnt --snapshot-type pre --description before\ update --userdata "important=yes" --cleanup number returned: {"exit"=>134, "stderr"=>".snapshots must not be world-writable\nreading failed\n.snapshots must not be world-writable\nterminate called after throwing an instance of 'snapper::IOErrorException'\n what(): .snapshots must not be world-writable\n", "stdout"=>""} | |||
</source> | |||
# Based on this used below in the live OS boot where Suse 15 upgrade was being tried. ( Or we could have done (chmod 750 /.snapshots ) in the older OS being upgraded. In normal boot only path would be /.snapshots instead of /mnt/.snapshots as during OS upgrade) | |||
#:<pre> | |||
#:: chmod 750 /mnt/.snapshots | |||
#:</pre> | |||
#: This solved the snapshot related error. | |||
[[Main Page|Home]] > [[VIOS or AIX]] > [[Upgrading 12SP4 LPAR to 15SP1]] | [[Main Page|Home]] > [[VIOS or AIX]] > [[Upgrading 12SP4 LPAR to 15SP1]] | ||
Latest revision as of 08:10, 26 June 2023
Home > VIOS or AIX > Upgrading 12SP4 LPAR to 15SP1
To upgrade 12SP4 LPAR to 15SP1 use:
- Before upgrade ensure
- There is enough free space in / (At least 25GB. 5GB is definitely less and leads to upgrade failure).
- The system is registered with latest registration codes. See SuSEConnect commands at Update Suse from SLES 12 SP2 to SLES 15 SP2 with 100MB /boot
- Entire LPAR image level backup is taken via Backup of LPAR by booting into Suse installer DVD rescue mode. Expect enough surprises during upgrade.
- Connect two virtual optical drivers (one for installer and one for packages). See Add Virtual Optical Media to LPAR with desired OS ISO image
- Start "Upgrade" option after booting through CD using "System management services". See Activating the LPAR (Starting)
- Press up/down arrow to get grub
- Ideally we should have taken a backup of system (root) partition before upgrade via Backup of LPAR by booting into Suse installer DVD rescue mode
- Leave Language and Keyboard to default values and choose Next
- If there is prompt to enable multipath select 'yes', esp. in case of FC based disks.
- Give network IP etc. either via DHCP or static. We need direct access to Internet for upgrade to work. Choose next
- Select Suse12SP4 partition to upddate and choose Next
- Agree to license and choose next
- On the repository page choose next
- If system is not registered with Suse we need Full installer DVD (not two separate installer / packages).
- Ideally register system and proceed.
- The system should have been registered with active codes. Sometime the activation codes are renewed yearly. In that case we need to login to suse portal and do a fresh activation / registration before upgrade.
- Select the migration target
- Agree to use updated repositories as part of update process
- Do not select any additional products for installation during upgrade.
- We can install required packages later after upgrade
- Wait for upgrade to complete
Upgrading x86_64 architecture of SLES
In case of x86_64 architecture instead of power, we can use the DVD images (700MB / 1.2GB) and update offline. In this case the upgrade paths supported eg 12SP3 to 15SP1 might be different then online upgrade. To enable this we may have to give boot options:
Media_upgrade=1
while booting using 15SP1 DVD.
Further, during such upgrade we may get prompted to solve package / extension conflicts. In such case we can choose to ignore (Strictly based on your requirement) some packages such as:
- SLES_BCL
- SLED
- SLE_HPC
- SLE_RT
- Suse-Manager-*
In case of conflict between SLES-15 and SLES_SAP-15 choose:
- Break product SLES-15.1 by ignoring some of its dependencies
Finally in conflict between SLES_SAP-12.3 and SLES-15.1 ideally deinstall SLES_SAP-12.3.
Similarly in case of conflict between SLES_SAP-15 and SLES-15 choose to not install SLES_SAP-15.
Snapshot issue while upgrading
It is possible to get error "Filesystem snapshot could not be created" during upgrade. To solve this used:
- Press Ctrl+Atl+F2 shortcut and as shown in error message run save_y2logs
- SCP logs to a different machine
- In logs open YaST2/y2log to understand the issue. Example logs might be:
2023-06-22 03:42:38 <1> SV01(4028) [Ruby] yast2/fs_snapshot.rb:317 Executing: "/usr/lib/snapper/installation-helper --step 5 --root-prefix=/mnt --snapshot-type pre --description before\ update --userdata "important=yes" --cleanup number" 2023-06-22 03:42:38 <3> SV01(4028) [bash] ShellCommand.cc(shellcommand):78 .snapshots must not be world-writable 2023-06-22 03:42:38 <3> SV01(4028) [bash] ShellCommand.cc(shellcommand):78 reading failed 2023-06-22 03:42:38 <3> SV01(4028) [bash] ShellCommand.cc(shellcommand):78 .snapshots must not be world-writable 2023-06-22 03:42:38 <3> SV01(4028) [bash] ShellCommand.cc(shellcommand):78 terminate called after throwing an instance of 'snapper::IOErrorException' 2023-06-22 03:42:38 <3> SV01(4028) [bash] ShellCommand.cc(shellcommand):78 what(): .snapshots must not be world-writable 2023-06-22 03:42:38 <3> SV01(4028) [Ruby] yast2/fs_snapshot.rb:323 Snapshot could not be created: /usr/lib/snapper/installation-helper --step 5 --root-prefix=/mnt --snapshot-type pre --description before\ update --userdata "important=yes" --cleanup number returned: {"exit"=>134, "stderr"=>".snapshots must not be world-writable\nreading failed\n.snapshots must not be world-writable\nterminate called after throwing an instance of 'snapper::IOErrorException'\n what(): .snapshots must not be world-writable\n", "stdout"=>""} - Based on this used below in the live OS boot where Suse 15 upgrade was being tried. ( Or we could have done (chmod 750 /.snapshots ) in the older OS being upgraded. In normal boot only path would be /.snapshots instead of /mnt/.snapshots as during OS upgrade)
- chmod 750 /mnt/.snapshots
- This solved the snapshot related error.
