Installation guide

OSFBINCOM410 and no other subsets are needed. OSFBINCOM410 is the

Kernel Header and Common Files (Kernel Build Environment) subset.

Use the btcreate utility to create a standalone bootable tape. To extract

and restore ﬁle systems from tape at the single-user level, you use the

btextract utility.

For more information, see btcreate

(8) and btextract(8).

G.6.8.1 ULTRIX Migration Issues

Bootable tape capabilities do not exist on ULTRIX operating systems: there

are no ULTRIX migration issues.

G.6.9 Partition Overlap Checks Added to Disk Utilities

Partition overlap checks have been enhanced or added to the following

commands:

newfs ufs_fsck mount

The checks ensure that partitions will not be overwritten if they are

marked in use in the fstype ﬁeld on the disk label. The overlap checks

also ensure that no overlapping partition is marked in use.

If a partition or an overlapping partition has an in-use fstype ﬁeld in the

disk label, the following commands inquire interactively if a partition can

be overwritten or not:

newfs mkfdmn addvol

swapon voldisk voldisksetup

See the reference pages for more information.

Partition overlap checks have been generalized by creating two library

functions: check_usage and set_usage. Two new fstype values have

been added: FS_RAW and FS_DB. For example, you can use the library

function set_usage with database applications to set the fstype ﬁeld of a

disk partition that is in use by the database. Similarly, you can use

check_usage to determine the usage of a disk partition or any overlapping

partition.

G.6.9.1 ULTRIX Migration Issues

There are no ULTRIX migration issues.

G–8 Migration from ULTRIX Version 4.5 to DIGITAL UNIX Version 4.0B