"last" command coredump

[Frank Li]

when I run last command (whether as root or normal user )
it prompts "Coredump"

#last
Memory fault(coredump)

where is the problem ?
(The file /var/adm/wtmp exists )

[Printaporn_1 · Accepted solution]

that may be fall into 2 cases

1. last binary is corrupt , using cksum compare with last in same HP-UX version.

2. wtmp is corrupt

[R Madhavan]

try by clearing the wtmp file.
#mv wtmp wtmp.maybebad
#>wtmp
#last

[federico_3]

to get the same informations read wtmp file like this:

the following will convert it to ASCII file
#/usr/sbin/acct/fwtmp < /var/adm/wtmp > /tmp/file
then you can either edit the file or read it.

Then you can convert it back to binary form:
##/usr/sbin/acct/fwtmp -ic < /tmp/file > /var/adm/wtmp


Bye
federico

[Frank Li]

It seems that the wtmp file is corrupted .

thanks to all.