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On Thursday, August 27, 2015 11:06:25 PM Mick wrote: |
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> On Thursday 27 Aug 2015 21:03:19 Fernando Rodriguez wrote: |
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> > On Thursday, August 27, 2015 8:44:07 PM Mick wrote: |
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> > > On Thursday 27 Aug 2015 20:30:17 Grant Edwards wrote: |
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> > > > On 2015-08-27, James <wireless@×××××××××××.com> wrote: |
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> > > > > Grant Edwards <grant.b.edwards <at> gmail.com> writes: |
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> > > > >> For those of us with multiple Linux installations on a disk, that's |
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> > > > >> a pretty big reason to stick with grub-legacy. |
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> > > > > |
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> > > > > So you are saying (trying to read the 'tea leaves' here) that |
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> > > > > grub legacy ( grub-static-0.97-r12) will work well on a 64 bit |
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> > > > > systems, |
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> > > > |
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> > > > I still use it on all my 64-bit machines. |
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> > > > |
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> > > > > (u)efi with say multiple drives (> 2T) and Raid-1 configs like |
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> > > > > btrfs-native or via lvm? |
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> > > > |
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> > > > I haven't started using UEFI boot mode mode yet, so I don't know how |
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> > > > thetwo grub's compare. |
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> > > |
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> > > UEFI do not need GRUB{1,2} or any other boot manager. They can boot any |
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> > > kernel you drop in the EFI boot partition directly, as long as you set |
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it |
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> > > up so. It becomes cumbersome if you are planning to multiboot various |
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> > > kernels |
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> > |
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> > & |
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> > |
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> > > OS frequently. |
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> > |
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> > You do need a manager like efibootmgr unless you have a really good "bios" |
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> > menu where you can manage your entries. Only removable media is |
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> > autodetected on all EFI boxes I've seen. I use GRUB2 because my efi |
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> > firmware (like most) is really buggy. Changing the boot order doesn't work |
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> > at all (neither on the menu nor through efibootmgr), so I have to delete |
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> > and recreate the entries in the right order. What I did is create 2 efi |
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> > entries, one for my main kernel and one for grub2 and I added entries for |
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> > all my secondary kernels and windows on the grub2 menu. |
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> |
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> Interesting ... here I had no such problems on an EUFI Asus MoBo. I have a |
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> number of kernels (up to six last time I looked) and I can change the boot |
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> order with 'efibootmgr -o <numberA>,<numberB>,...,<numberZ>' |
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|
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I didn't mean that all or most have that specific bug. But a lot of them are |
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really buggy. Some have case sensitive FAT drivers, or unusual filename length |
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limits, or will only boot a specific filename like boot.efi. One has come up on |
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this list a couple times with gummyboot that will ignore some entries |
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seemingly at random which I would bet is a firmware bug. |
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|
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efibootmgr -o seems to work for me, running efibootmgr again shows that the |
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order has been updated but it is not persisted and when I reboot the previous |
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default entry still boots. The --bootnext option does work for me when I need |
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to boot a different entry just once. |
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|
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-- |
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Fernando Rodriguez |