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Associated Information

- none

Useful Links

NCR Unix is similiar to Solaris

• machinetype - gives type of machine
• /etc/.relid - contains release information
• /var/netls/nodelock - contains licence information

Firmware

To get into the firmware level, interupt autoload message by hitting space, enter SUS

Kernel Gen

• /etc/conf/pack.d - contains drivers
• /etc/conf/cf.d - contains configuration files
• /etc/conf/bin/idbuild - builds kernel then copies it into /stand/unix
• /etc/conf/mdevice - major numbers for devices (minor number points to the actual devices)

/usr/sadm/sysadm/bin/nodes -d /dev/dsk/device gives major and minor numbers (with -m major_number minir_number gives device)

If you add a new device, you will need to add the driver to the kernel and reboot (doesn't auto-detect)

The boot process is as follows:BIOS loads firmware (SUS), SUS loads kernel, kernel mounts root, onve mounted init is started which reads /etc/inittab

Init levels are as follows:

• 0 - power off
• S - admin (only / mounted)
• 1 - single user mode (filesystems mounted)
• 2 - multi user mode
• 3 - X and NFS started

Startup scripts run from /etc/rcX.d

Disk Configuration

• fdisk - partition a disk
• dklayout - boot block, vtoc, etc
• cdvtoc - slice
• mkfs - setting up filesystems
• cpio - backup utility often used

Other Info

• sar - used for performance monitoring
• prtconf memsize - gives memory size
• volmgr - used for disk management
• /etc/dktab - disk info
• sysadm - character based admin tool
• osa - GUI based admin tool with spooler and scheduler