Patch Name: PHCO_18865

Patch Description: s700_800 11.04 (VVOS) fsck_hfs(1M) cumulative patch

Creation Date: 99/08/10

Post Date:  99/09/13

Hardware Platforms - OS Releases:
	s700: 11.04
	s800: 11.04

Products: N/A

Filesets:
	OS-Core.UX-CORE,fr=B.11.04,fa=HP-UX_B.11.04_32/64,v=HP

Automatic Reboot?: No

Status: General Release

Critical: No

Category Tags:
	defect_repair general_release

Path Name: /hp-ux_patches/s700_800/11.X/PHCO_18865

Symptoms:
	PHCO_18865:
	Ported HP-UX patch PHCO_19091 to VVOS

	Based on HP-UX patch PHCO_19091:
	When upgrading from 10.X to 11.00, fsck may fail on
	hfs file systems with the message:
	BAD SUPER BLOCK: TRASHED VALUES IN SUPER BLOCK
	USE -b OPTION TO FSCK TO SPECIFY LOCATION OF AN ALTERNATE
	SUPER-BLOCK TO SUPPLY NEEDED INFORMATION; SEE fsck(1M).

	Based on HP-UX patch PHCO_16703:
	If a file system fragment size is not 1K, and fsck needs
	to correct the block count for a directory inode, fsck
	miscalculates the size field for the directory inode.
	fsck succeeds, however, the kernel will subsequently
	treat it as a corrupted directory.

Defect Description:
	PHCO_18865:
	Ported HP-UX patch PHCO_19091 to VVOS

	Based on HP-UX patch PHCO_19091:
	The value of fs_csp in the superblock structure of
	an hfs file system changed from 10.X to 11.00.  The
	value used to be an array of data, but for 11.00,
	only the first entry in the array is used; the
	remaining entries have been renamed to fs_unused2.
	While 11.00 file systems do not used this field,
	10.X file systems may have left data in this now
	unused field.  fsck_hfs(1M) does not handle this
	properly, and treats this data as if the primary
	superblock of the file system is corrupt, when in
	fact the file system is fine.
	Resolution:
	fsck_hfs(1M) has been updated to properly handle the
	change in the fs_csp structure in the hfs superblock.

	Based on HP-UX patch PHCO_16703:
	When the block count needs to be corrected for a directory
	inode, fsck_hfs miscalculates the size field of the
	directory inode on the file system where the fragment size
	is not 1K bytes. It sets an incorrect large value in the
	size field of the directory inode. The contents of the
	directory file are correct but HP-UX kernel detects that
	the end of the directory entry does not match with the size
	of the directory file and treats this as a corrupted
	directory entry.

SR:
	1653296293 1653277301

Patch Files:
	
	OS-Core.UX-CORE,fr=B.11.04,fa=HP-UX_B.11.04_32/64,v=HP:
	/sbin/fs/hfs/fsck

what(1) Output:
	
	OS-Core.UX-CORE,fr=B.11.04,fa=HP-UX_B.11.04_32/64,v=HP:
	/sbin/fs/hfs/fsck:
		$Revision: Hewlett-Packard ISSL Level vvos_rose42 $ 
			$Header: Hewlett-Packard ISSL Release vvos_r
			ose $ $Date: Tue Aug 10 17:53:52 EDT 1999 $
		$Source: cmd/fsck/fsck.c, hpuxcmdfs, vvos_rose, rose
			0008 $ $Date: 99/08/10 13:43:54 $ $Revision:
			 1.34 PATCH_11.04 (PHCO_18865) $
		$Revision: 82.7.1.4 $
		VVOS_Supported_Version
		$Header: Hewlett-Packard ISSL Release vvos_rose $
		$Revision: Hewlett-Packard ISSL Level rose0001 $
		/usr/src/lib/libc/archive_pa1/libc.a_ID
		$Date: Aug 10 1999 20:21:05 $

cksum(1) Output:
	
	OS-Core.UX-CORE,fr=B.11.04,fa=HP-UX_B.11.04_32/64,v=HP:
	119860217 548864 /sbin/fs/hfs/fsck

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes: None

Equivalent Patches:
	PHCO_19091:
	s700: 11.00
	s800: 11.00

Patch Package Size: 560 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_18865

	5. Run swinstall to install the patch:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -s /tmp/PHCO_18865.depot

	By default swinstall will archive the original software in 
	/var/adm/sw/save/PHCO_18865.  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_18865.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_18865.text file is 
	available in the product readme:

		swlist -l product -a readme -d @ /tmp/PHCO_18865.depot

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

		dd if=/tmp/PHCO_18865.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None