On Tuesday 30 May 2017 02:06:38 Erik Christiansen wrote: > On 29.05.17 16:58, Gene Heskett wrote: > > Now, a fat32 file system (/boot) has no concept of making a file > > immutable that I know of, so how can I protect the kernel.img and > > kernel7.img's from being replaced by non-realtime crap from raspian? > > If you don't format fat32 for any reason other than giving the media > away, then there is no fat problem. Even if /boot is on the SD card, > that's not a great reason to use a crippled file format in a *nix > environment. For USB sticks & SD cards, I'm using: > > Plug it in, and wait for automounting to complete, then: > # mount # To see what /dev/s??? it is. > # umount # So we can format it. > # mkfs.ext3 /dev/s??? > > If there's a better treatment for fat32, then I haven't yet heard of > it, except perhaps for going to ext4. (Haven't tried that yet.) > > ... > > > Now, following along in man apt_preferences, I've written a pin file > > and placed it in /etc/apt/preferences.d as "kernel.list" that reads > > like this: > > > > Package: linux-kernel > > Pin: version 4.4.9-rt17-v7+ > > Pin-Priority: 1001 > > > > Package: linux-headers > > Pin: version 4.4.9-rt17-v7+ > > Pin-Priority: 1001 > > > > Maybe dpkg will obey? Apt and apt-get should. > > Now that's hopefully a gremlin-proof fence. (But watch out for > Murphy's pigs.) ;-) As apt-get is quite convenient for > installs/updates, it's probably worth cultivating the habit of using > that. > > ... > > > It would be nice if all these detours didn't get in the way. :) > > Yebbut, now you're a pinning guru. (I've just taken a quick look at > "man apt_preferences", and it suggests that /etc/apt/preferences is > 'where you could specify "pinning"'. It seems to use the same syntax > as you have, though. If I can avoid having to discover what e.g. > "kernel.list" filename to use, then the apparently simpler single file > approach suits me, lower on that learning curve) > > Erik
Well, apt just told me I named the file wrong. For a change its not a .list, its either no extension or .pref. No complaints after I mv'd it to "kernel.pref" That little tidbit of info is in the man page, but about 2 paragraphs up from the examples. I had to actually read the thing, horrors. Its one of those man pages that almost fits the TL;DR category. One other tidbit is that they are read alphabetically, and last one governs. So I'm wondering if I should mv the file to zzzzz.prefs. ;-) My bigger problem is that I may now be a pinning guru, but by this time next week, I may have forgotten it. Short term memory is getting worse all the time. I can recall something from the 1940's easier than what if anything, I had for breakfast this morning. Upsetting to put it in mixed company language... Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ 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
