How to reset root password of old Unix System V Post: 302263286

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Special Forums Cybersecurity How to reset root password of old Unix System V Post 302263286 by 82026 on Monday 1st of December 2008 08:13:45 AM

12-01-2008

Registered User

yes it appeared to be more complicated. The HDD is scsi.
I found Adaptec scsi adapter, connected my traget HDD and booted another machine with puppy linux CD. The HDD was found at boot and there what I could see with dmesg :

# dmesg
scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 7.0
<Adaptec 2940 SCSI adapter>
aic7870: Single Channel A, SCSI Id=7, 16/253 SCBs
scsi 0:0:0:0: Direct-Access MAXTOR LXT-340S 6.73 PQ: 0 ANSI: 1 CCS
target0:0:0: Beginning Domain Validation
target0:0:0: Ending Domain Validation
SCSI device sda: 665154 512-byte hdwr sectors (341 MB)
sda: Write Protect is off
sda: Mode Sense: 57 00 00 08
SCSI device sda: write cache: disabled, read cache: enabled, doesn't support DPO or FUA
SCSI device sda: 665154 512-byte hdwr sectors (341 MB)
sda: Write Protect is off
sda: Mode Sense: 57 00 00 08
SCSI device sda: write cache: disabled, read cache: enabled, doesn't support DPO or FUA
sda: unknown partition table
sd 0:0:0:0: Attached scsi disk sda

The disk was not listed on desktop for ones available to mount. I guess prelast message "sda: unknown partition table" was the reason. This was on my new linux box.

On the native machine during boot message pops up:

UHC UNIX System V Rel. 4.0 Version 3.6

then many messages about loaded modules

The uname -a returns:
fib1 4.0 3.6 i386 386/AT (fib1 - is user )

/etc/copyright - does not exist

With this original box flopies are formated at 1.44M and also I managed to make tar backups of some data. But my puppy linux could not mount them either.

Any ideas how to move on?

82026

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LEARN ABOUT DEBIAN

pvck

PVCK(8) 						      System Manager's Manual							   PVCK(8)

NAME

       pvck - check physical volume metadata

SYNOPSIS

       pvck [-d|--debug] [-h|--help] [-v|--verbose] [--labelsector] PhysicalVolume [PhysicalVolume...]

DESCRIPTION

       pvck checks physical volume LVM metadata for consistency.

OPTIONS

       See lvm for common options.

       --labelsector sector
	      By  default, 4 sectors of PhysicalVolume are scanned for an LVM label, starting at sector 0.  This parameter allows you to specify a
	      different starting sector for the scan and is useful for recovery situations.  For example, suppose the partition table is corrupted
	      or  lost	on  /dev/sda, but you suspect there was an LVM partition at approximately 100 MB.  This area of the disk may be scanned by
	      using the --labelsector parameter with a value of 204800 (100 * 1024 * 1024 / 512 = 204800):

	      pvck --labelsector 204800 /dev/sda

	      Note that a script can be used with --labelsector to automate the process of finding LVM labels.

SEE ALSO

       lvm(8), pvcreate(8), pvscan(8) vgck(8)

Sistina Software UK					 LVM TOOLS 2.02.95(2) (2012-03-06)						   PVCK(8)