Bug#525243: Xen Dom0, DomU, multipath and LDAP upgrade hints.
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Package: upgrade-reports
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On a set of IBM Blade HS21 running on the top of a SAN IBM DS-4700, with
some Debian Xen Dom0 and DomU, I had the following issues :
On Debian Etch->Lenny Dom0
* I had to reinstall xen-tools. It was already installed but it seems
that upgrade remove the package.
* Install manually linux images and linux modules. It seems those
packages were not upgraded (linux-image-2.6-xen-686
linux-image-2.6.26-1-xen-686 linux-modules-2.6-xen-686
linux-modules-2.6.26-1-xen-686)
On Debian Etch->Lenny DomU
* Add extra = ‘console=hvc0 xencons=tty‘ in each domU configuration[1]
* Install linux-modules-xen-686 on each DomU
* Install udev, which is not installed by xen-create-image. This
wasn't a problem under Etch, but with Lenny you'll get "Troubleshooting
PTY allocation request failed on channel 0" when accessing via SSH[2]
On Debian Etch->Lenny with multipath
* /sbin/scsi_id has moved to /lib/udev/scsi_id, this can break
multipath, just change the configuration (before reboot).
* mpath_prio_tpc has been renamed to mpath_prio_rdac, again
configuration need to be changed (before reboot).
* udev rules have been changed, so before your path was XXXXXpY, now
it's XXXXX-partY, so change all your path in /etc/fstab and
/boot/grub/menu.lst.
* scsi_id options have changed. Change -s /block/%n to
- --device=/dev/%n, so change configuration.
-> Don't forget to rebuilt initrd when those changes are done.
On Debian Etch->Lenny, drivers
* For network card Broadcom Corporation NetXtreme II BCM5708S Gigabit
Ethernet (rev 12) install firmware-bnx2 from non-free (not needed with
Etch).
About OpenLDAP and the bug 504728, affecting the use of cn=config, I
think this should be stated in the release notes. The use of cn=config
is recommended by OpenLDAP documentation. People that upgrade to Lenny
with this bug will :
- Rebuild openldap
- Revert configuration from cn=config to ".conf" files.
As the bug doesn't show up before any configuration changes are made,
your OpenLDAP server seems to have been well upgraded, but when it shows
up you're in a hurry to fix it.
This are the glitches I had when upgrading my servers, it's listed on my
wiki[3], but I might be useful for others.
Thank for your great work,
Etienne.
[1]http://www.ducea.com/2009/03/18/lenny-domu-xencons/
[2]http://www.xen-support.com/?p=16
[3]http://www.tchetch.net/wiki/debian/maintenance/upgrade_to_lenny
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