Ah! Might change and probably will. Murphy and all his cousins are alive and well. Thanks for the comment.
However, I update very sparsely....still running on a 1200 Duron and 2.5? Clearly time to upgrade. ;-) My goal is to consistently make chips. Dave On 01/05/2017 05:15 PM, Kurt Jacobson wrote: > I found out the hard way that it is not a good idea to select the kernel > numerically (e.g. GRUB_DEFAULT="2>3") since if another kernel is added (by > an update?) the order might change. > > I now use the string method as below exclusively and have not had any > surprises since. > GRUB_DEFAULT="Previous Linux versions>Ubuntu, with Linux 3.4-9-rtai-686-pae" > > Kurt > > On Thu, Jan 5, 2017 at 3:32 PM, dave <dengv...@charter.net> wrote: > >> With some help from Kent this turns out to be not too onerous. >> >> Boot your system and on the boot menu note which kernel you want ( by >> number ) starting with 0. >> Ditto if you are in the alternate menu. >> >> #modify /etc/default/grub >> >> $cd /etc/default >> sudo vim grub >> change GRUB_DEFAULT=0 to GRUB_DEFAULT="n" or if in alternate menu >> to GRUB_DEFAULT="2>n" >> save and exit vim >> >> # or in main menu just GRUB_DEFAULT="count-1" >> # in alternate menu = "line number of alternate menu in main >> menu>count-1 in menu" >> >> #update grub.cfg >> sudo update-grub >> >> #reboot >> sudo shutdown -r now >> >> # or you can select the kernel like this by string. >> #GRUB_DEFAULT="n>Ubuntu, with Linux 3.4-9-rtai-686-pae" >> #where n is the entry you want (count -1). >> >> #For the original menu I think you can omit the n> and go with it. >> #remember anytime you change /etc/default/grub you need to update grub. >> Don't ask me >> #how I know. >> >> Now it is up to someone good with good documentation skills to make >> certain this is understandable and get it into the docs. >> >> HTH >> >> >> >> >> On 01/03/2017 04:43 PM, Sebastian Kuzminsky wrote: >>> On 01/03/2017 04:47 PM, dave wrote: >>>> Re: >>>> http://linuxcnc.org/docs/html/getting-started/getting- >> linuxcnc.html#_installing_on_ubuntu_precise >>>> The instructions for the install are nicely done. I tried it both by >>>> typing individual lines and by enclosing the block of instructions in >> {}. >>>> Seemed to work either way but no joy on uname -r | uname -a. >>>> >>>> Apparently grub does not get updated by the install and therefore one >>>> boots into the ...generic. >>>> I've pretty well worked my way thru grub but need to weed the list to a >>>> generic, generic(recovery) and >>>> rtai. Rtai comes up on a secondary list and I need to change that. >>>> >>>> Not complaining just a heads up. Nice to have it all laid out. >>> If you figure out a clear way to describe the changes needed to the GRUB >>> config, an update to the docs would be much appreciated! >>> >>> >> >> ------------------------------------------------------------ >> ------------------ >> Check out the vibrant tech community on one of the world's most >> engaging tech sites, SlashDot.org! http://sdm.link/slashdot >> _______________________________________________ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users >> > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, SlashDot.org! http://sdm.link/slashdot > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
