Installation guide

Warning — vdisks, tdisks, and default layout
The default layout uses all devices made available to the installer. This includes any
temporary storage devices such as vdisks or tdisks. If temporary storage devices are used with
the default layout, the system might become inaccessible when these devices are redefined
and the device contents are lost (for example, on logoff and relogon of z/VM guests). Review
the partition layout and if temporary devices are included, go back and choose Create
custom layout to exclude these devices from being used for permanent system data.
Warning
The Up dat e Ag en t downloads updated packages to /var/cache/yum/ by default. If you
partition the system manually, and create a separate /var/ partition, be sure to create the
partition large enough (3.0 GB or more) to download package updates.
Fig u re 17.7. Disk Part it io n in g Set up
If you choose to create a custom layout using Disk Dru id , refer to Section 17.14, “ Partitioning Your
System” .
Red Hat Ent erprise Linux 5 Inst allat ion G uide
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