[opensuse] simple warning: installing 13.2 on usb media
Hello, Just a word to warn you, installing openSUSE on a flash device plugged on an UEFI computer may be risky. I did many test today, most giving unusable result, and finally making the computer unbootable (secure boot problem) with windows. not a big deal for me, this computer is mostly devoted to such tests. No data is lost, only the boot option and I'm still on the windows repair system (I hate it!!). I couldn't make yast repair the boot (yet) and prefere to fix windows first to prevent it from redestroying my linux :-) hint: It do not seems possible to direct grub-uefi to install itself on the flash device without touching the computer main install, and grub2 boot is ignored by a secureboot computer :-( jdd -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Le 20/11/2014 18:31, jdd a écrit :
I did many test today, most giving unusable result, and finally making the computer unbootable (secure boot problem) with windows.
finally, reinstalling openSUSE 13.2 allowed windows to boot again :-) jdd -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On Thu, 20 Nov 2014 18:31:20 +0100
jdd
Just a word to warn you, installing openSUSE on a flash device plugged on an UEFI computer may be risky.
http://nwrickert2.wordpress.com/2013/12/08/installing-on-an-external-drive-u... -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Le 21/11/2014 14:20, Neil Rickert a écrit :
On Thu, 20 Nov 2014 18:31:20 +0100 jdd
wrote: Just a word to warn you, installing openSUSE on a flash device plugged on an UEFI computer may be risky.
http://nwrickert2.wordpress.com/2013/12/08/installing-on-an-external-drive-u...
well... it's most exactly what I did, at the notable exception of the last part (manual fix). I have tryed this several times, with mixed results, and anyway, I also wants an "hybrid" (aka mbr/efi) system boot. My net test will be through susestudio. to be noted: I used as target a 32Gb fast sd card, very good to receive HD video (so pretty fast). I noticed a very important slowdown after some install time, so the install last at least one hour (default kde). in the last test the nvram entry opensuse secureboot was lacking and the windows one didn't work so well (got to repair, and this is always extremely long and most of the time unusefull). As my hard disk 13.2 install was recent and empty, I simply reinstalled it from scratch and all was working (including windows, quite suprisingly). but I already noticed that efi bioses differ very much from a computer to an other. jdd -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On Fri, 21 Nov 2014 15:05:59 +0100
jdd
I have tryed this several times, with mixed results, and anyway, I also wants an "hybrid" (aka mbr/efi) system boot. My net test will be through susestudio.
I created a hybrid by just switching to "grub2" (installed in MBR). And "grub2-efi" and the booting setup for EFI remained in place. However, I did that with 12.3. It got harder with 13.1 and later. If you setup for secure-boot, then grub.cfg is going to use: linuxefi kernel-file initrdefi initrd-file and that won't work with MBR booting. So you either need two versions of "grub.cfg" (I called one of them "grub.altcfg") or you need to give up on secure-boot. It's easy enough to change the "grub.cfg" in the EFI partition to load "grub.altcfg". And it is easy to come up with a "sed" script to generate the "grub.altcfg" from "grub.cfg". But you need to remember to run that after a grub configuration update.
but I already noticed that efi bioses differ very much from a computer to an other.
This is true. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
Le 21/11/2014 20:13, Neil Rickert a écrit :
I created a hybrid by just switching to "grub2" (installed in MBR). And "grub2-efi" and the booting setup for EFI remained in place.
However, I did that with 12.3. It got harder with 13.1 and later.
but it works with the kde live cd (64 bits)! I will try to expand from that and report if success :-) jdd -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
participants (2)
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jdd
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Neil Rickert