Linux 3.8.0-31-genérico # 46-Ubuntu SMP Ter 10 de setembro 20:03:44 UTC 2013 x86_64 x86_64 x86_64 GNU / Linux
Olá, minhas manpages estão em branco; quando eu digito algo como man ls no meu terminal, ele exibe uma página em branco apenas com o seguinte:
Manual page man(1) line ?/? (END) (press h for help or q to quit)
Eu já tentei desinstalar os pacotes man com o comando dpkg e apt-get, verifique meu caminho e o arquivo de configuração man ... mas obviamente eu estou perdendo alguma coisa; Alguém pode me ajudar a resolver isso? Obrigado.
sudo apt-get --purge remove manpages manpages-dev freebsd-manpages funny-manpages gmt-manpages man2html manpages-posix manpages-posix-dev asr-manpages
sudo apt-get install manpages manpages-dev freebsd-manpages funny-manpages gmt-manpages man2html manpages-posix manpages-posix-dev asr-manpages
qual homem
/usr/bin/man
echo $ PATH
/home/franchin/bin:/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/> usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/usr/bin/man
sudo mandb -c
...
Processing manual pages under /usr/local/share/man...
131 man subdirectories contained newer manual pages.
5731 manual pages were added.
0 stray cats were added.
cat /etc/manpath.config
magic magic.mime mailcap mailcap.order manpath.config
franchin@N53Jq:~$ cat /etc/manpath.config
# manpath.config
#
# This file is used by the man-db package to configure the man and cat paths.
# It is also used to provide a manpath for those without one by examining
# their PATH environment variable. For details see the manpath(5) man page.
#
# Lines beginning with '#' are comments and are ignored. Any combination of
# tabs or spaces may be used as 'whitespace' separators.
#
# There are three mappings allowed in this file:
# --------------------------------------------------------
# MANDATORY_MANPATH manpath_element
# MANPATH_MAP path_element manpath_element
# MANDB_MAP global_manpath [relative_catpath]
#---------------------------------------------------------
# every automatically generated MANPATH includes these fields
#
#MANDATORY_MANPATH /usr/src/pvm3/man
#
MANDATORY_MANPATH /usr/man
MANDATORY_MANPATH /usr/share/man
MANDATORY_MANPATH /usr/local/share/man
#---------------------------------------------------------
# set up PATH to MANPATH mapping
# ie. what man tree holds man pages for what binary directory.
#
# *PATH* -> *MANPATH*
#
MANPATH_MAP /bin /usr/share/man
MANPATH_MAP /usr/bin /usr/share/man
MANPATH_MAP /sbin /usr/share/man
MANPATH_MAP /usr/sbin /usr/share/man
MANPATH_MAP /usr/local/bin /usr/local/man
MANPATH_MAP /usr/local/bin /usr/local/share/man
MANPATH_MAP /usr/local/sbin /usr/local/man
MANPATH_MAP /usr/local/sbin /usr/local/share/man
MANPATH_MAP /usr/X11R6/bin /usr/X11R6/man
MANPATH_MAP /usr/bin/X11 /usr/X11R6/man
MANPATH_MAP /usr/games /usr/share/man
MANPATH_MAP /opt/bin /opt/man
MANPATH_MAP /opt/sbin /opt/man
#---------------------------------------------------------
# For a manpath element to be treated as a system manpath (as most of those
# above should normally be), it must be mentioned below. Each line may have
# an optional extra string indicating the catpath associated with the
# manpath. If no catpath string is used, the catpath will default to the
# given manpath.
#
# You *must* provide all system manpaths, including manpaths for alternate
# operating systems, locale specific manpaths, and combinations of both, if
# they exist, otherwise the permissions of the user running man/mandb will
# be used to manipulate the manual pages. Also, mandb will not initialise
# the database cache for any manpaths not mentioned below unless explicitly
# requested to do so.
#
# In a per-user configuration file, this directive only controls the
# location of catpaths and the creation of database caches; it has no effect
# on privileges.
#
# Any manpaths that are subdirectories of other manpaths must be mentioned
# *before* the containing manpath. E.g. /usr/man/preformat must be listed
# before /usr/man.
#
# *MANPATH* -> *CATPATH*
#
MANDB_MAP /usr/man /var/cache/man/fsstnd
MANDB_MAP /usr/share/man /var/cache/man
MANDB_MAP /usr/local/man /var/cache/man/oldlocal
MANDB_MAP /usr/local/share/man /var/cache/man/local
MANDB_MAP /usr/X11R6/man /var/cache/man/X11R6
MANDB_MAP /opt/man /var/cache/man/opt
#
#---------------------------------------------------------
# Program definitions. These are commented out by default as the value
# of the definition is already the default. To change: uncomment a
# definition and modify it.
#
#DEFINE pager pager -s
#DEFINE cat cat
#DEFINE tr tr '5747' '5770'
#DEFINE grep grep
#DEFINE troff groff -mandoc
#DEFINE nroff nroff -mandoc
#DEFINE eqn eqn
#DEFINE neqn neqn
#DEFINE tbl tbl
#DEFINE col col
#DEFINE vgrind vgrind
#DEFINE refer refer
#DEFINE grap grap
#DEFINE pic pic -S
#
#DEFINE compressor gzip -c7
#---------------------------------------------------------
# Misc definitions: same as program definitions above.
#
#DEFINE whatis_grep_flags -i
#DEFINE apropos_grep_flags -iEw
#DEFINE apropos_regex_grep_flags -iE
#---------------------------------------------------------
# Section names. Manual sections will be searched in the order listed here;
# the default is 1, n, l, 8, 3, 0, 2, 5, 4, 9, 6, 7. Multiple SECTION
# directives may be given for clarity, and will be concatenated together in
# the expected way.
# If a particular extension is not in this list (say, 1mh), it will be
# displayed with the rest of the section it belongs to. The effect of this
# is that you only need to explicitly list extensions if you want to force a
# particular order. Sections with extensions should usually be adjacent to
# their main section (e.g. "1 1mh 8 ...").
#
SECTION 1 n l 8 3 2 3posix 3pm 3perl 5 4 9 6 7
#
#---------------------------------------------------------
# Range of terminal widths permitted when displaying cat pages. If the
# terminal falls outside this range, cat pages will not be created (if
# missing) or displayed.
#
#MINCATWIDTH 80
#MAXCATWIDTH 80
#
# If CATWIDTH is set to a non-zero number, cat pages will always be
# formatted for a terminal of the given width, regardless of the width of
# the terminal actually being used. This should generally be within the
# range set by MINCATWIDTH and MAXCATWIDTH.
#
#CATWIDTH 0
#
#---------------------------------------------------------
# Flags.
# NOCACHE keeps man from creating cat pages.
#NOCACHE
Encontrei informações úteis aqui: link
Este post está falando sobre um problema nroff ... No meu lançamento do Ubuntu eu acho que não é bom eu não estou certo?
Eu sei que posso lidar com o comando info e o --help ... mas seria bom me ajudar a recuperar o homem: /
usando o seguinte cmd resolve meu problema:
apt-get --reinstall install groff groff-base
O problema estava bem relacionado à invocação do groff para exibir as man pages.
A solução foi publicada no launchpad canônico :
Seems that problem in apparmor profile loading on older kernels. I
have the same issue on custom kernel 4.4, but with ubuntu kernel 4.15
everything ok.
Workaround for older kernels:
apt install apparmor-utils
aa-disable /usr/bin/man
Upstream Bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=889617
Funciona também no kernel 4.12!