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303975 |
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11-Aug-2016 |
gjb |
Copy stable/11@r303970 to releng/11.0 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, and rename it to RC1.
Update __FreeBSD_version.
Use the quarterly branch for the default FreeBSD.conf pkg(8) repo and the dvd1.iso packages population.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation |
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302408 |
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08-Jul-2016 |
gjb |
Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle. Prune svn:mergeinfo from the new branch, as nothing has been merged here.
Additional commits post-branch will follow.
Approved by: re (implicit) Sponsored by: The FreeBSD Foundation
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289031 |
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08-Oct-2015 |
cperciva |
Change gptldr from relocating 0xfff1 bytes of boot2 to relocating 0x20000 bytes of boot2. Since we're in 16-bit mode, we can't copy all 128kB at once; instead we loop four times and copy 32 kB each time.
This change was made necessary by an upcoming increase in the size of the boot2 binary; should it increase further, the COPY_BLKS value can be adjusted without anyone needing to remember 8086 assembly language again.
Requested by: allanjude Tested by: allanjude MFC after: 1 week
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173957 |
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26-Nov-2007 |
jhb |
Add a note to indicate that these files do borrow in part from mbr.s and boot1.S
Requested by: rnordier
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172940 |
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24-Oct-2007 |
jhb |
First cut at support for booting a GPT labeled disk via the BIOS bootstrap on i386 and amd64 machines. The overall process is that /boot/pmbr lives in the PMBR (similar to /boot/mbr for MBR disks) and is responsible for locating and loading /boot/gptboot. /boot/gptboot is similar to /boot/boot except that it groks GPT rather than MBR + bsdlabel. Unlike /boot/boot, /boot/gptboot lives in its own dedicated GPT partition with a new "FreeBSD boot" type. This partition does not have a fixed size in that /boot/pmbr will load the entire partition into the lower 640k. However, it is limited in that it can only be 545k. That's still a lot better than the current 7.5k limit for boot2 on MBR. gptboot mostly acts just like boot2 in that it reads /boot.config and loads up /boot/loader. Some more details: - Include uuid_equal() and uuid_is_nil() in libstand. - Add a new 'boot' command to gpt(8) which makes a GPT disk bootable using /boot/pmbr and /boot/gptboot. Note that the disk must have some free space for the boot partition. - This required exposing the backend of the 'add' function as a gpt_add_part() function to the rest of gpt(8). 'boot' uses this to create a boot partition if needed. - Don't cripple cgbase() in the UFS boot code for /boot/gptboot so that it can handle a filesystem > 1.5 TB. - /boot/gptboot has a simple loader (gptldr) that doesn't do any I/O unlike boot1 since /boot/pmbr loads all of gptboot up front. The C portion of gptboot (gptboot.c) has been repocopied from boot2.c. The primary changes are to parse the GPT to find a root filesystem and to use 64-bit disk addresses. Currently gptboot assumes that the first UFS partition on the disk is the / filesystem, but this algorithm will likely be improved in the future. - Teach the biosdisk driver in /boot/loader to understand GPT tables. GPT partitions are identified as 'disk0pX:' (e.g. disk0p2:) which is similar to the /dev names the kernel uses (e.g. /dev/ad0p2). - Add a new "freebsd-boot" alias to g_part() for the new boot UUID.
MFC after: 1 month Discussed with: marcel (some things might still change, but am committing what I have so far)
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