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HMC upgrade question
- Thread starter Mag0007
- Start date
It depends. If you're doing a corrective service upgrade (ie V5R1 to V5R2) you can do it via Websm, but will need to reboot via command line.
If you have to use recovery media (ie v4r5 to v5r1) you can't use the hmc because you have to boot from the media.
hope this helps -
If you have to use recovery media (ie v4r5 to v5r1) you can't use the hmc because you have to boot from the media.
hope this helps -
- Thread starter
- #3
Nope, I just did it this past week. You'll need to be at the machine because this requires recovery media (not corrective service), which requires you boot of the dvd. Follow the steps on the website.
Suprisingly, when i called IBM they didn't have the 5.2 recovery media so they shipped me 5.1 recovery media and 5.2 upgrade media. So I had to use recovery media to get from 4.5 to 5.1, then upgrade media to get from 5.1 to 5.2
Suprisingly, when i called IBM they didn't have the 5.2 recovery media so they shipped me 5.1 recovery media and 5.2 upgrade media. So I had to use recovery media to get from 4.5 to 5.1, then upgrade media to get from 5.1 to 5.2
- Thread starter
- #5
hfaix:
Interesting, so I am guessing you had to blow away your 4.5 configuration, and do a fresh install?
Does the HMC have some type of 'cfgmgr' to get the managed system's data, so it will know what systems its hooked up to? What happened to your 4.5 configuration?
TIA
Interesting, so I am guessing you had to blow away your 4.5 configuration, and do a fresh install?
Does the HMC have some type of 'cfgmgr' to get the managed system's data, so it will know what systems its hooked up to? What happened to your 4.5 configuration?
TIA
Before you use the recovery media preform a "Back up Critical Console Data" to DVD. This will save all your partition information, users, passwords, scheduled operations etc.
Near the end of the recovery process you will be prompted to insert your backup or continue.
If you do not have a backup you can recover the state of your managed systems from NVRAM but you will have to re-enter all passwords, recreate users, etc. You may have to physically power down yoru managed systems to have them discovered when they request a DHCP address (or manually enter their IP addresses).
Near the end of the recovery process you will be prompted to insert your backup or continue.
If you do not have a backup you can recover the state of your managed systems from NVRAM but you will have to re-enter all passwords, recreate users, etc. You may have to physically power down yoru managed systems to have them discovered when they request a DHCP address (or manually enter their IP addresses).
A "backup critical console data" does not help you after an update/upgrade, unless you need to step back to the previous version.
What is a BCCD: backup of all modified files since last install. when you need to reinstall an HMC (eg disk crash), as a last step you patch it with a BCCD dvdram to get to an exact copy of your HMC like it was when the BCCD was made. You should make a BCCD periodically or at least whenever a major change occurs.
For an update/upgrade, you also make a BCCD, just in case the update/upgrade fails so you can get to a working versions with all your configuration changes from reinstalling your previous versions with the recovery CDs or DVD. Thus a BCCD is "mated" to its HMC version! So you should mark it that way on the BCCD DVDRAM: HMC name, version, date, annotation...
When you upgrade (e.g. from V4 to V5), the local config changes should be saved to a protected partition on the HMC internal disk, so that the changes can be applied after you load the newer version - this newer version is applied by reinstalling the HMC!) I don't know all the details by heart, but I remember it all being fully documented on the infocenter website.
HTH,
p5wizard
What is a BCCD: backup of all modified files since last install. when you need to reinstall an HMC (eg disk crash), as a last step you patch it with a BCCD dvdram to get to an exact copy of your HMC like it was when the BCCD was made. You should make a BCCD periodically or at least whenever a major change occurs.
For an update/upgrade, you also make a BCCD, just in case the update/upgrade fails so you can get to a working versions with all your configuration changes from reinstalling your previous versions with the recovery CDs or DVD. Thus a BCCD is "mated" to its HMC version! So you should mark it that way on the BCCD DVDRAM: HMC name, version, date, annotation...
When you upgrade (e.g. from V4 to V5), the local config changes should be saved to a protected partition on the HMC internal disk, so that the changes can be applied after you load the newer version - this newer version is applied by reinstalling the HMC!) I don't know all the details by heart, but I remember it all being fully documented on the infocenter website.
HTH,
p5wizard
I didn't have to do anything after the recovery media install. I did back critical console data, but I believe that is only for user account and firewall information.
Make sure you do the "install" not "recovery" when you boot from media.
Everything worked out fine. I believe this is the site I used to go from 4.5 to 5.1, then I did corrective service from 5.1 to 5.2.
Make sure you do the "install" not "recovery" when you boot from media.
Everything worked out fine. I believe this is the site I used to go from 4.5 to 5.1, then I did corrective service from 5.1 to 5.2.
my post was unclear. # my bad, I was trying to "multi-thread"
I did backup critical console data, solely because the instructions said too ( it wasn't needed ). I don't believe this is needed, unless for some reason the upgrade crashes and you want to revert back (using 4.5 recovery media).
If you're uncertain of the ip address of the managed systems you might want to check that out ahead of time, just in case the HMC crashes during upgrade (had this happen going to 4.5 and didn't know the IP addresses...not fun). I did not have to take the managed systems down to find them after a clean install from recovery media, but I had to recreate all my users. Their is search functionality built into the Network stuff on the hmc that can be used (but it takes awhile). Hope this helps.
I did backup critical console data, solely because the instructions said too ( it wasn't needed ). I don't believe this is needed, unless for some reason the upgrade crashes and you want to revert back (using 4.5 recovery media).
If you're uncertain of the ip address of the managed systems you might want to check that out ahead of time, just in case the HMC crashes during upgrade (had this happen going to 4.5 and didn't know the IP addresses...not fun). I did not have to take the managed systems down to find them after a clean install from recovery media, but I had to recreate all my users. Their is search functionality built into the Network stuff on the hmc that can be used (but it takes awhile). Hope this helps.
You should 'save upgrade data' prior to the upgrade, it saves all the user, network, etc. stuff to a hidden partition on the HMC hard drive.
You MUST, can't stress this enough - MUST - do this immediatly prior to the uprade. It sets a flag some where that prompts the HMC to recover this data on the next sucessful boot.
If you do the save and then try to boot the upgrade CD - but ,doh! the CD wasn't in the boot list so the HMC just boots up, the data is restored - no problem, it was just over writing the same info - then you MUST do the save upgrade data again to reset the flag, before you then shut down, go into the bios to set the CD as the first boot device and then boot the CD and do the upgrade.
You MUST, can't stress this enough - MUST - do this immediatly prior to the uprade. It sets a flag some where that prompts the HMC to recover this data on the next sucessful boot.
If you do the save and then try to boot the upgrade CD - but ,doh! the CD wasn't in the boot list so the HMC just boots up, the data is restored - no problem, it was just over writing the same info - then you MUST do the save upgrade data again to reset the flag, before you then shut down, go into the bios to set the CD as the first boot device and then boot the CD and do the upgrade.
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