Minimum Boot

[issinoho]

In order to recover from a system with a faulty setup that means that logging in after a normal boot is impossible (e.g. exhausted pagefile), a minimum boot can be executed which will bypass the SYSTARTUP_VMS.COM

From the console, boot to SYSBOOT

On VAX

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>>> b/e0000000 dua0

On Alpha

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>>> boot -flags 0,1 dka0

In SYSBOOT

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SYSBOOT> SET STARTUP_P1 "MIN"
SYSBOOT> CONTINUE

Once logged in, reset to a normal boot sequence

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$ run sys$system:sysboot
SYSBOOT> PARAMETERS USE CURRENT
SYSBOOT> PARAMETERS SET STARTUP_P1 ""
SYSBOOT> PARAMETERS WRITE CURRENT
SYSBOOT> EXIT

And finally reboot

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$ @SYS$SYSTEM:SHUTDOWN