08.02.2017 11:29, Laszlo Ersek пишет: > Hi, > > this is a dumb question and it's not appropriate for a development > mailing list, but I couldn't find "grub-user" or "grub-users", so I'll > ask here anyway... >
there is help-g...@gnu.org > My laptop is connected to my workstation via USB-serial (USB for the > laptop, serial for the workstation). Sometimes, by the time the laptop > comes up and starts "screen", for viewing the serial output from the > workstation, the workstation is already displaying the grub menu. > Occasionally in this case, I can't see anything at all, there's no grub > countdown, the cursor up/down keys do nothing (they certainly don't > refresh the screen), but if I blindly press Enter, then the selected > kernel entry is booted okay (and that kernel does produce serial output, > and takes the LUKS password from serial fine as well). > > So, Q1: what could cause the loss of serial output from grub when I > connect to it "too late"? > > Q2: when that happens, can I press something like C-r to force a full > serial / screen refresh? > There are no hot keys for "refresh everything". May be adding it would be not so bad idea. > I know that USB-serial adaptors are generally wacky, but this is a > Prolific PL2303 adaptor which is (to my knowlede) usually considered > reliable. Plus, my laptop has no physical RS/232 port (shame on you, all > laptop vendors of today!), so this is the best I can do. > > Thanks, > Laszlo > > _______________________________________________ > Grub-devel mailing list > Grub-devel@gnu.org > https://lists.gnu.org/mailman/listinfo/grub-devel > _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
