BOOT filesystem in HPUX 11.x

[A.Vishwanath_2]

Why the BOOT filesyetem (/stand) in HP-UX 11.x HFS only?

[Paula J Frazer-Campbell]

HI

When the server initially boots it does not understand xfs / jfs file systems, so the OS is kept on a HFS system /stand.

HTH

Paula

[A.Vishwanath_2]

can u pls elaborate. What i understand from ur answer is that the driver may not be availbel to understand the xfs/jfs FS that's the reason it is kept in HFS filesystem.

[Sanjay Kumar Suri]

HFS is the HP implementation of UNIX file system and the boot file system only support HFS.

May be future releases may support /stand file system on other types.

sks

[A. Clay Stephenson]

Because the boot firmware only understands hfs filesystem layouts.

[Bill Hassell]

The HFS filesystem is HP's version of the McKusick High Performance Filesystem and as Clay said, the processor ROMs understand how to locate the vmunix file in an HFS filesystem. VxFS is very different and there is not enough room in the ROMs to read both HFS and VxFS. There is no driver in this case because there is no operating system at bootup.