startup fails

[hy_4]

When the machine boots,an error occurs:boot dka0.0.0.2001.0 - flag A failed to open dka0.
What is the reason?Thank you.

[Evert Jan van Ramselaar]

This means it tries to boot from device dka0, but it is not able to access it.

EJ

[hy_4]

Then how can I start up my machine?

[Michael Schulte zur Sur]

Hi,

boot with cdrom, try to mount filesets. If also unsuccessful, replace disk and restore from backup.

greetings,

Michael

[Sid Shorter_2]

Are you sure this is your boot device? Sometimes the default boot device config gets lost. Is the system mirrored? Does the system show an amber light on the disk drive?

[Ross Minkov]

just do "sho dev" on the >>> prompt and try to boot to each disk device you see there.