Split /var/tmp to its own partition

[didib]

Replace current 15GB /var with 5GB /var and 10GB /var/tmp.

Latter needs to be that large for hosted-engine deployment.

Change-Id: I5d7fa308d4f11151d91d1063cc5c97e137b174be
Bug-Url: https://bugzilla.redhat.com/2055829
Signed-off-by: Yedidyah Bar David didi@redhat.com

Fixes issue # (delete if not relevant)

Changes introduced with this PR

Are you the owner of the code you are sending in, or do you have permission of the owner?

[y/n]

[michalskrivanek]

also did #5 so that the result is usable in OST

[michalskrivanek]

so regression-wise it's ok (verified upgrading to new imgbase on older ovirt-node installation)
testing initial deployment with changed layout is hard...let's merge this and see the resulting ovirt-node ISO

[michalskrivanek]

[root@ost-basic-suite-master-host-1 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 728M 0 728M 0% /dev
tmpfs 781M 0 781M 0% /dev/shm
tmpfs 781M 688K 780M 1% /run
tmpfs 781M 0 781M 0% /sys/fs/cgroup
/dev/mapper/onn_ibm--p8--kvm--03--guest--02-ovirt--node--ng--4.5.0--0.20220217.0+1 21G 4.8G 16G 24% /
/dev/vda2 1014M 315M 700M 32% /boot
/dev/mapper/onn_ibm--p8--kvm--03--guest--02-home 1014M 40M 975M 4% /home
/dev/mapper/onn_ibm--p8--kvm--03--guest--02-var 15G 204M 15G 2% /var
/dev/mapper/onn_ibm--p8--kvm--03--guest--02-tmp 1014M 41M 974M 4% /tmp
/dev/mapper/onn_ibm--p8--kvm--03--guest--02-var_log 8.0G 106M 7.9G 2% /var/log
/dev/mapper/onn_ibm--p8--kvm--03--guest--02-var_crash 10G 105M 9.9G 2% /var/crash
/dev/mapper/onn_ibm--p8--kvm--03--guest--02-var_tmp 10G 105M 9.9G 2% /var/tmp
/dev/mapper/onn_ibm--p8--kvm--03--guest--02-var_log_audit 2.0G 47M 2.0G 3% /var/log/audit
tmpfs 157M 0 157M 0% /run/user/0