Patch Name: PHCO_18901

Patch Description: s700_800 11.00 extendfs_hfs fix for large file systems

Creation Date: 99/06/18

Post Date:  99/06/25

Hardware Platforms - OS Releases:
	s700: 11.00
	s800: 11.00

Products: N/A

Filesets:
	LVM.LVM-RUN,fr=B.11.00,fa=HP-UX_B.11.00_32/64,v=HP

Automatic Reboot?: No

Status: General Release

Critical:
	Yes
	PHCO_18901: CORRUPTION

Category Tags:
	defect_repair general_release critical corruption

Path Name: /hp-ux_patches/s700_800/11.X/PHCO_18901

Symptoms:
	PHCO_18901:
	When using extendfs_hfs to enlarge a file system with
	a fragment size that is not 1K bytes, the directory
	of the mount point becomes corrupted. This causes the
	error message ". not found" to be issued when an
	attempt is made to mount the file system.

Defect Description:
	PHCO_18901:
	When the 'cylinder group summary information' needs to
	be re-written (due to an increase in size), the incorrect
	number of fragments required is calculated when the
	fragment size is not 1K bytes.
	This causes the data in the first data block, which
	includes the current directory entry "." in the mount
	directory, to be lost.

	Resolution:
	The correct number of fragments required is calculated,
	regardless of the fragment size.

SR:
	1653271262 5003361394 5003335547

Patch Files:
	
	LVM.LVM-RUN,fr=B.11.00,fa=HP-UX_B.11.00_32/64,v=HP:
	/sbin/fs/hfs/extendfs

what(1) Output:
	
	LVM.LVM-RUN,fr=B.11.00,fa=HP-UX_B.11.00_32/64,v=HP:
	/sbin/fs/hfs/extendfs:
		$ PATCH/11.00:PHCO_18227  Apr 13 1999 10:20:45 $
		$Revision: 80.3.1.1 $
		$Revision: 80.3.1.1 $
		PATCH_11_00: extendfs.o ufs_tables.o hpux_rel.o 99/0
			6/18

cksum(1) Output:
	
	LVM.LVM-RUN,fr=B.11.00,fa=HP-UX_B.11.00_32/64,v=HP:
	1501690289 245760 /sbin/fs/hfs/extendfs

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes: None

Equivalent Patches:
	PHCO_18837:
	s700: 10.20
	s800: 10.20

Patch Package Size: 260 KBytes

Installation Instructions:
	Please review all instructions and the Hewlett-Packard
	SupportLine User Guide or your Hewlett-Packard support terms
	and conditions for precautions, scope of license,
	restrictions, and, limitation of liability and warranties,
	before installing this patch.
	------------------------------------------------------------
	1. Back up your system before installing a patch.

	2. Login as root.

	3. Copy the patch to the /tmp directory.

	4. Move to the /tmp directory and unshar the patch:

		cd /tmp
		sh PHCO_18901

	5. Run swinstall to install the patch:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -s /tmp/PHCO_18901.depot

	By default swinstall will archive the original software in 
	/var/adm/sw/save/PHCO_18901.  If you do not wish to retain a
	copy of the original software, use the patch_save_files option:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -x patch_save_files=false -s /tmp/PHCO_18901.depot

	WARNING: If patch_save_files is false when a patch is installed,
		 the patch cannot be deinstalled.  Please be careful
		 when using this feature.

	For future reference, the contents of the PHCO_18901.text file is 
	available in the product readme:

		swlist -l product -a readme -d @ /tmp/PHCO_18901.depot

	To put this patch on a magnetic tape and install from the
	tape drive, use the command:

		dd if=/tmp/PHCO_18901.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None