Patch Name:  PHCO_5846

Patch Description: s700_800 10.00 fsck_hfs(1M) patch for possible corruption

Creation Date: 95/07/24

Post Date:  95/08/21

Hardware Platforms - OS Releases:
        s700: 10.00
        s800: 10.00

Products: N/A

Filesets:
        OS-Core.UX-CORE

Automatic Reboot?: No

Status: General Release

Critical:
        No (superseded patches were critical)
        PHCO_5746: OTHER
                This patch is critical because at boot-up if the
                root 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_5846

Symptoms:
        PHCO_5846:
        fsck fails at boot-up.

        PHCO_5746:
        corrupt and mounted file systems, primarily root, may
        be fsck'ed into corruption, at boot-up.

        PHCO_5323:
        10.0 fsck issues error messages:
        BAD DIRECT ADDRESS, SHOULD BE ZERO: inode.di_db[2] = 1
        when encounters a 9.04 hard partition.

Defect Description:
        PHCO_5846:
        /sbin/fs/hfs/fsck included in PHCO_5746 was dynamically
        linked.

        PHCO_5746:
        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.

        PHCO_5323:

        The problem occurs if you take a 9_04 disk and mount
        it on a 10.0 system, and then run fsck(HFS) on it.

        To ensure compatibilty of pre-10.0 file systems on 10.0
        release, fsck had to work on DUX-encumbered file
        systems.  fsck was changed to handle this, via this
        patch.

SR:
        4701287318 4701296129

Patch Files:
        /sbin/fs/hfs/fsck

what(1) Output:
        /sbin/fs/hfs/fsck:
                $Revision: 72.34.1.3 $
                /usr/lib/libc: $Revision: 72.775 $
                PATCH_10_0MR: fsck.o cache.o ufs_tables.o ufs_subr.o
                         hpux_rel.o 95/07/24

cksum(1) Output:
        2710058459 192512 /sbin/fs/hfs/fsck

Patch Conflicts: None

Patch Dependencies:  None

Hardware Dependencies:  None

Other Dependencies:  None

Supersedes:
        PHCO_5323 PHCO_5746

Equivalent Patches: None

Patch Package Size:  240 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_5846

        5. Run swinstall to install the patch:

                swinstall -x autoreboot=true -x match_target=true \
                        -s /tmp/PHCO_5846.depot

        By default swinstall will archive the original software in
        /var/adm/sw/patch/PHCO_5846.  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_5846.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:

                swpackage -s /tmp/PHCO_5846.depot -x   \
                        target_type=tape -d /dev/rmt/0m PHCO_5846

Special Installation Instructions:  None