Finally I decide to turn on console on all my VMs so that I don’t have to rely on VNC for remote access whenever network is having problem – I’m trying to join corp network now and there are lots of network glitches during last week and I believe there will still be some in the coming week.<\/p>\n
Actually it’s not that complicated, on CentOS (5 or 6) machines, add following line to \/etc\/inittab (do a dmesg | grep tty to make sure it is ttyS0 for you, but I believe they are all the same for kvm based VMs): then in \/boot\/grub\/grub.conf:<\/p>\n Reboot the machine, and attach to to console by “virsh console “, then you will get console for both book progress and normal login.<\/p>\n On Ubuntu 10.04 or 12.04 (these are two versions I’m currently using), create \/etc\/init\/ttyS0.conf: start on stopped rc or RUNLEVEL=[12345] respawn Then edit \/etc\/default\/grub, change or add following lines: then “update-grub” to make it into real \/boot\/grub\/grub.cfg (you can verify those console lines after running the command), then reboot, everything should be there.<\/p>\n","protected":false},"excerpt":{"rendered":" Finally I decide to turn on console on all my VMs so that I don’t have to rely on VNC for remote access whenever network is having problem – I’m trying to join corp network now and there are lots of network glitches during last week and I believe there will still be some in […]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[465,131],"_links":{"self":[{"href":"https:\/\/xiehang.com\/blog\/wp-json\/wp\/v2\/posts\/1609"}],"collection":[{"href":"https:\/\/xiehang.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xiehang.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xiehang.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xiehang.com\/blog\/wp-json\/wp\/v2\/comments?post=1609"}],"version-history":[{"count":2,"href":"https:\/\/xiehang.com\/blog\/wp-json\/wp\/v2\/posts\/1609\/revisions"}],"predecessor-version":[{"id":1641,"href":"https:\/\/xiehang.com\/blog\/wp-json\/wp\/v2\/posts\/1609\/revisions\/1641"}],"wp:attachment":[{"href":"https:\/\/xiehang.com\/blog\/wp-json\/wp\/v2\/media?parent=1609"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xiehang.com\/blog\/wp-json\/wp\/v2\/categories?post=1609"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xiehang.com\/blog\/wp-json\/wp\/v2\/tags?post=1609"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n# for console
\nT0:2345:respawn:\/sbin\/agetty -h -L ttyS0 38400 vt100
\n<\/code><\/p>\n\n
\nsplashimage=(hd0,0)\/grub\/splash.xpm.gz<\/code><\/li>\n
\nserial --unit=0 --speed=38400 --word=8 --parity=no --stop=1
\nterminal --timeout=10 serial console
\n<\/code><\/li>\n
\nconsole=tty0 console=ttyS0,38400n8<\/code><\/li>\n<\/ol>\n
\n# ttyS0 - getty
\n#
\n# This service maintains a getty on ttyS0 from the point the system is
\n# started until it is shut down again.<\/p>\n
\nstop on runlevel [!12345]<\/p>\n
\nexec \/sbin\/getty -L 115200 ttyS0 vt102<\/code><\/p>\n
\nGRUB_CMDLINE_LINUX=\"console=tty0 console=ttyS0,115200n8\"
\nGRUB_TERMINAL=serial
\nGRUB_SERIAL_COMMAND=\"serial --speed=115200 --unit=0 --word=8 --parity=no --stop=1\"
\n<\/code><\/p>\n