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Top Forums UNIX for Beginners Questions & Answers BMW GT1 DIS - SCO 5.0 and Oracle 7 Root HDD Clone - IBM T30 Post 303032077 by RudiC on Monday 11th of March 2019 02:32:22 AM
Old 03-11-2019
I don't know the IBM T30 nor the SW system (SCO / Oracle 7) you have in front of you, but any *nix system allows for booting into "single mode" which is a root terminal session. Early in the boot process it offers a menu option, or a key (combination) must be pressed, to get there.
You could try to boot from another medium, "live" CD, or USB stick.
You could perform a "discectomy" (surgically remove) the HD and connect it as a secondary device to another computer, and do the copy there.

Last edited by RudiC; 03-11-2019 at 10:56 AM..
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bootadm(1M)															       bootadm(1M)

NAME
bootadm - manage bootability of GRUB-enabled operating system SYNOPSIS
/sbin/bootadm update-archive [-vn] [-R altroot] /sbin/bootadm list-archive [-vn] [-R altroot] only /sbin/bootadm set-menu [-R altroot] key=value /sbin/bootadm list-menu [-R altroot] The bootadm command manages the boot archive and GRUB (GRand Unified Bootloader) menu. The update-archive option provides a way for user to update the boot archive as a preventative measure or as part of the recovery procedure. The set-menu subcommand allows you to switch the auto-boot timeout and default boot entry in the GRUB menu. The list-menu subcommand displays the location of the GRUB menu and the current GRUB menu entries. While the typical location of the GRUB menu is /boot/grub/menu.lst, depending on the install method used the active GRUB menu might be located somewhere else. Use the list-menu subcommand to locate the active GRUB menu. For example, if a system was installed using Live Upgrade, the GRUB menu might not be located in the current boot environment. See the section for typical output from the list-menu option. Note that a SPARC system does not have the concept of a boot archive. The bootadm command on a SPARC system is intended for managing disk- less clients. SUBCOMMANDS
The bootadm command has the following subcommands: update-archive Updates current boot archive if required. Applies to both SPARC and platforms. list-archive Lists the files and directories to be included in the boot archive. Applies to both SPARC and platforms. set-menu Maintain the GRUB menu. The current GRUB menu is boot/grub/menu.lst, relative to root. Do not depend on this location, because it is subject to change. Applies to platforms only. list-menu Lists the location of the active GRUB menu, as well as the current GRUB menu entries. This includes the autoboot-timeout, the default entry number, and the title of each entry. Applies to platforms only. The bootadm command has the following options: -v In an update-archive operation, stale files are displayed on stderr. -n In an update-archive operation, archive content is checked but not updated. -R altroot Operation is applied to an alternate root path. Note - The root file system of any non-global zones must not be referenced with the -R option. Doing so might damage the global zone's file system, might compromise the security of the global zone, and might damage the non-global zone's file system. See zones(5). key=value Possible values are: default=entrynum The item number (for example, 0, 1, or 2) in the GRUB menu designating the operating system to boot when the timer expires. timeout=seconds The number of seconds before the operating system designated by the default item number is booted. If the value is -1, auto boot is disabled. Example 1: Updating the Current Boot Archive The following command updates the current boot archive: # bootadm update-archive Example 2: Updating the Boot Archive on an Alternate Root The following command updates the boot archive on an alternate root: # bootadm update-archive -R /a Example 3: Listing Installed OS Instances The following command lists the installed operating system instances in a GRUB menu: # bootadm list-menu default=0 timeout=10(0) Solaris10(1) Solaris10 Failsafe(2) Linux Example 4: Switching Default Boot Entry The following command refers to the menu displayed in the previous example. The user selects Linux (item 2). # bootadm set-menu default=2 Example 5: Listing GRUB Menu Entries and Location of GRUB Menu The following command lists the GRUB menu entries and the location of the GRUB menu: # bootadm list-menu The location for the active GRUB menu is: /stubboot/boot/grub/menu.lst default 0 timeout 10 0 Solaris10 1 Solaris10 failsafe 2 Linux Example 6: Displaying Location of GRUB Menu The following command displays the location of the GRUB menu: # bootadm list-menu The location for the active GRUB menu is: /dev/dsk/c0t1d0s0 (not mounted) The filesystem type of the menu device is <ufs> default 2 timeout 10 0 c0t1d0s3 1 c0t1d0s3 failsafe 2 Solaris10 3 Solaris10 failsafe In this example, the active GRUB menu is located on a device which is not mounted. To access the GRUB menu, mount the device and access the GRUB menu at <mountpoint>/boot/grub/menu.lst. The following exit values are returned: 0 The command completed successfully. 1 The command exited due to an error. See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |Interface Stability |Stable | +-----------------------------+-----------------------------+ boot(1M), installgrub(1M), attributes(5) The GRUB home page: http://www.gnu.org/software/grub/ 10 Oct 2005 bootadm(1M)
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