Well, disabling secure boot won’t break anything, so you can test away with it off. If you want to re-enble it, you have a few hoops to jump through in order to tell secure boot you have a signed linux boot to select from.
There are a lot of HOWTOs on getting secure boot to work with a linux kernel, just not sure if it is worth the trouble. I have a Dell XPS developer edition laptop that can with Ubuntu on it direct fro Dell. It has secure boot disabled right out of the box. > On Feb 19, 2018, at 12:53 PM, J C Nash <profjcn...@gmail.com> wrote: > > Scott pointed out that EFI does not have 4 partition limit. > > So I went ahead and resized. Win10 still worked. > > Then tried Linux Mint install (live USB works fine). Made main and swap > partitions > as sda5 and sda6. But on restart got Secure Boot Violation. > > Tried again, watching progress, and GRUB install crashed. Win10 still > working, but it's disk > management tool does NOT show the sda5 or sda6, and Win10 partition still > original size. > > Also gparted gives libparted warning: The driver descriptor says the block > size is > 2048 bytes, but linux says it is 512 bytes. > > Wondering if I need to turn off secure boot and allow Linux to install 3rd > party drivers, > but I rather would like to avoid that. > > Ideas? > > JN > > On 2018-02-19 11:56 AM, Rick Leir wrote: >> >> Hi John >> You would be doing the change to extended for one of the partitions using >> fdisk or similar? Yes, risky, but the risk is all in your fingers. Can you >> practice on some other surplus PC? >> >> About the backup to removeable disk: I would prefer to use dd for this, just >> because I know it better. >> >> One option which might be less risky: install Ubuntu, and let it do the >> partition changes. It knows how to shrink the windows filesystem and set up >> the partitions. Then install Mint on the Ubuntu partition. Maybe you can go >> directly to Mint. >> >> It has been a while since I have monkeyed with partitions, so I hope I said >> this all correctly. >> Cheers --Rick >> >> On February 19, 2018 10:51:30 AM EST, J C Nash <profjcn...@gmail.com> wrote: >>> Background (skip to QUERY if you wish): >>> >>> While in Florida recently, my wife and I spotted a nice 11.6" Dell >>> Inspiron >>> for $300 US. The design is "old", with 500GB spinning disk, 4 GB Ram, >>> quad >>> core processor that isn't terribly powerful. However, it is a size Mary >>> likes >>> for travel, and enough disk for lots of family photos and videos. (Her >>> previous >>> Asus EEE 1225B was similar, but heavier, and suffered an unfortunate >>> collision >>> with a tile floor that has made it only partly functional.) We've tried >>> Android >>> tablet, but the key layout on Android -- and we've looked around at >>> several -- >>> makes doing email and stuff awkward. And they don't store much. >>> >>> It has Windows 10 and works reasonably well with this. We'd like to >>> keep >>> the Win10 in dual boot. Sometimes useful to test things. >>> >>> For safety, using the Windows 10 recovery disk tool >>> (Control Panel / System & Security > Security & Maintenance > Recovery) >>> created a recovery USB on a 16 GB Lexar flash key. >>> >>> Also downloaded Clonezilla clonezilla-live-20170905-zesty-amd64.iso and >>> used mintstick tool >>> to install on a USB key (only uses about 275 MB). This is in the >>> alternate >>> repository for Clonezilla and allows UEFI booting. The regular "stable" >>> choice did not >>> boot. >>> >>> Made a whole disk image using this and put it on an external USB drive >>> from the Dell. >>> >>> >>> QUERY: >>> >>> The partition structure is as follows: >>> >>> Disk /dev/sda: 465.8 GiB, 500107862016 bytes, 976773168 sectors >>> Units: sectors of 1 * 512 = 512 bytes >>> Sector size (logical/physical): 512 bytes / 4096 bytes >>> I/O size (minimum/optimal): 4096 bytes / 4096 bytes >>> Disklabel type: gpt >>> Disk identifier: 3BBC8E19-46F4-4AB6-B9DA-7B3B4AB0A0DF >>> >>> Device Start End Sectors Size Type >>> /dev/sda1 2048 1026047 1024000 500M EFI System >>> /dev/sda2 1026048 1288191 262144 128M Microsoft reserved >>> /dev/sda3 1288192 975849471 974561280 464.7G Microsoft basic data >>> /dev/sda4 975849472 976771071 921600 450M Windows recovery >>> environment >>> >>> Unless I'm really mis-reading this, I've got 4 primary partitions, so >>> need to >>> convert one to Extended/Logical. Some forum comments say this can be >>> risky. >>> Does anyone have recommendations or experience? >>> >>> - Some net comments suggest using Windows tool to do this. It appears >>> that the >>> MiniTool Partition Wizard (https://www.partitionwizard.com) can do >>> this. >>> >>> - In linux there appears to be fixparts from >>> https://sourceforge.net/projects/gptfdisk/files/gptfdisk/1.0.1/fixparts-binaries/ >>> >>> Other choices? >>> >>> My current plan is >>> >>> - to convert the 465G particion with the free version of Partition >>> Wizard >>> - test Win10 boots >>> - use partimg from liveUSB to image that converted partition >>> - shrink the Win10 partition >>> - test booting again >>> - use partimg again to save (replace previous save) >>> - install Linux (Mint 18.3 Sylvia is what Mary is used to) to the >>> freed-up space. >>> >>> Comments and suggestions welcome. >>> >>> Best, JN >>> _______________________________________________ >>> Linux mailing list >>> Linux@lists.oclug.on.ca >>> http://oclug.on.ca/mailman/listinfo/linux >> > _______________________________________________ > Linux mailing list > Linux@lists.oclug.on.ca > http://oclug.on.ca/mailman/listinfo/linux -- Scott Murphy, CISSP Principal Consultant | Arrow-Eye Consulting Inc. 112 Springcreek Cres. | Kanata | ON | K2M 2K8 | Canada C: 613-769-9363 | GPG: A8DC6128C3A0E110 email: scott.mur...@arrow-eye.com <mailto:scott.mur...@arrow-eye.com> | web: http://www.arrow-eye.com <http://www.arrow-eye.com/> _______________________________________________ Linux mailing list Linux@lists.oclug.on.ca http://oclug.on.ca/mailman/listinfo/linux
