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On Thursday, August 27, 2015 8:49:13 AM Mike Gilbert wrote: |
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> On Wed, Aug 26, 2015 at 6:27 PM, Michel Catudal <mcatudal@×××××××.net> |
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wrote: |
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> > Le 2015-08-26 13:37, Fernando Rodriguez a écrit : |
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> > |
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> >> This may not be complete and some of these may be possible to some extent |
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> >> with |
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> >> legacy grub: |
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> >> |
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> >> 1. Grub Legacy is 32-bit only, so you need 32-bit libraries or use grub- |
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> >> static. Grub2 is portable, even beyond Intel architectures. |
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> >> 2. Grub2 has been rewritten to be modular. Instead of Grub's stages model |
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> >> it |
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> >> uses a core image and a bunch of modules. |
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> >> 3. EFI support without chainloading or other hacks. |
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> >> 4. Better filesystem support. Including loopback devices. |
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> >> 5. Graphics and theming support. |
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> >> 6. Grub2's config file (the one it tells you not to edit manually) is |
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> >> scriptable |
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> >> using a shell-like script language. |
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> >> 7. Password support for each entry. |
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> >> |
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> >> |
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> > |
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> > I've had serious problems in the past getting to to install on a partition |
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> > and gave up. Is that bug fixed? It insists on installing on the MBR which |
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is |
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> > unacceptable. |
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> > |
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> |
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> It's not a bug, and it won't be "fixed". Installing on a partition is |
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> simply not supported. |
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> |
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I just got it to work with these steps: |
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1. Mount the partition to /mnt/usb |
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2. Run: |
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#grub2-install --directory /usr/lib/grub/i386-pc --boot- |
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directory=/mnt/usb/boot --force /dev/sdb2 |
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Installing for i386-pc platform. |
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grub2-install: warning: File system `ext2' doesn't support embedding. |
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grub2-install: warning: Embedding is not possible. GRUB can only be installed |
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in this setup by using blocklists. However, blocklists are UNRELIABLE and |
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their use is discouraged.. |
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Installation finished. No error reported. |
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3. Set the partition as active with fdisk. |
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And it booted. To verify that it didn't overwrite the mbr I overwrote it with |
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syslinux's mbr as follows: |
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sudo dd conv=notrunc bs=440 count=1 if=/usr/share/syslinux/mbr.bin of=/dev/sdb |
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Still boots! |
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-- |
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Fernando Rodriguez |
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