Patch Name: PHCO_12065

Patch Description: s700_800 10.01 fsck_hfs(1M) cumulative patch

Creation Date: 97/08/07

Post Date:  97/08/19

Hardware Platforms - OS Releases:
	s700: 10.01
	s800: 10.01

Products: N/A

Filesets:
	OS-Core.UX-CORE

Automatic Reboot?: No

Status: General Superseded

Critical:
	Yes
	PHCO_12065: PANIC
	PHCO_5803: OTHER
		This patch is critical because at boot-up if the
		file system is mounted, when it is NOT clean,
		the fsck procedure in bcheckrc gets a message that
		the file system is dirty, rather than mounted. This
		results execution of fsck on the root file system
		corrupting it.

Path Name: /hp-ux_patches/s700_800/10.X/PHCO_12065

Symptoms:
	PHCO_12065:
	Fsck may corrupt a filesystem containing continuation
	inodes by clearing the wrong continuation inode.  The
	filesystem will be marked clean.  If this inode is a
	continuation inode, and the base inode is accessed once
	the file system is mounted, it can result in a system
	panic.

	PHCO_5803:
	Corrupt and mounted file systems, primarily root, may
	be fsck'ed into corruption, at boot-up.

Defect Description:
	PHCO_12065:
	The problem appears when an inode has been corrupted that
	has a continuation inode.  If the inode's continuation
	inode information is corrupt, it is possible that a random
	inode will be cleared.  This problem can cause system
	inconsistencies, and a subsequent panic.

	The problem is caused by missing braces after an
	if-statement, causing an inode to be cleared even though
	the variable was never set to the correct inode value.

	PHCO_5803:
	The bcheckrc script will invoke "fsck -m" on all file
	systems to determine if the file system requires a "fsck"
	or not. Currently, the if a file system is mounted corrupt,
	using "mount -f", then "fsck -m" will return as "fsck'able"
	rather than "mounted".  This causes a complete fsck to be
	run on the mounted file system.

SR:
	4701344432 4701296129

Patch Files:
	/sbin/fs/hfs/fsck

what(1) Output:
	/sbin/fs/hfs/fsck:
		$Revision: 74.8.1.3 $
		/usr/lib/libc: $Revision: 76.3 $
		PATCH_10_01: fsck.o cache.o  ufs_tables.o  ufs_subr.
			o  hpux_rel.o 97/08/07

cksum(1) Output:
	1527904349 208896 /sbin/fs/hfs/fsck

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes:
	PHCO_5803

Equivalent Patches:
	PHCO_12067:
	s700: 10.20
	s800: 10.20

	PHCO_12066:
	s700: 10.10
	s800: 10.10

	PHCO_12064:
	s800: 9.00 9.04

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_12065

	5a. For a standalone system, run swinstall to install the
	    patch:

		swinstall -x autoreboot=true -x match_target=true \
			-s /tmp/PHCO_12065.depot

	5b. For a homogeneous NFS Diskless cluster run swcluster on the
	    server to install the patch on the server and the clients:

		swcluster -i -b

	    This will invoke swcluster in the interactive mode and
	    force all clients to be shut down.

	    WARNING: All cluster clients must be shut down prior to the
		     patch installation.  Installing the patch while the
		     clients are booted is unsupported and can lead to
		     serious problems.

	    The swcluster command will invoke an swinstall session in which
	    you must specify:

		alternate root path  -  default is /export/shared_root/OS_700
		source depot path    -  /tmp/PHCO_12065.depot

	    To complete the installation, select the patch by choosing
	    "Actions -> Match What Target Has" and then "Actions -> Install"
	    from the Menubar.

	5c. For a heterogeneous NFS Diskless cluster:

		- run swinstall on the server as in step 5a to install
		  the patch on the cluster server.

		- run swcluster on the server as in step 5b to install
		  the patch on the cluster clients.

	By default swinstall will archive the original software in
	/var/adm/sw/patch/PHCO_12065.  If you do not wish to retain a
	copy of the original software, you can create an empty file
	named /var/adm/sw/patch/PATCH_NOSAVE.

	Warning: If this file exists when a patch is installed, the
	         patch cannot be deinstalled.  Please be careful
		 when using this feature.

	It is recommended that you move the PHCO_12065.text file to
	/var/adm/sw/patch for future reference.

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

		dd if=/tmp/PHCO_12065.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None