What does errno 57 (EBFONT) in Solaris mean?

EBFONT

Font file format validation

EBFONT is Solaris errno 57 (bad font file fmt). Solaris rejected a font file or console-font format.

Keep the rejected font artifact and the utility or driver that attempted to load it. Compare its header and format with a known working Solaris font of the same type rather than converting text encoding or changing unrelated locale settings.

What to check

• Check the specific console or display utility that loaded the font.
• Confirm that the file format matches the expected legacy font format.
• Do not diagnose it as character-encoding failure; EILSEQ is the byte-sequence error.

References

• Oracle Solaris intro(2): error numbers
• illumos errno.h definitions
• POSIX errno.h