GRUB2 -> Buildroot：grub-bios-setup 中的分段错误

Posted 2023-03-16

【中文标题】GRUB2 -> Buildroot：grub-bios-setup 中的分段错误

【英文标题】：GRUB2 -> Buildroot: Segmentation fault in grub-bios-setup

【发布时间】：2018-02-09 02:57:53

【问题描述】：

我正在 Buildroot-2017.05.2 上开发 Ubuntu 17.04（我的配置：is here）并希望用作引导加载程序 GRUB2强>。

我构建了 buildroot 并遵循内置指令：

dd if=/dev/zero of=170831_disk_1.img bs=1M count=300
cfdisk 170831_disk_1.img
     dos -> primary & bootable & 0x83
sudo losetup -f 170831_disk_1.img
sudo partx -a /dev/loop0
sudo mkfs.ext4 -L root /dev/loop0p1
sudo mount /dev/loop0p1 /mnt
sudo tar -C /mnt -xf rootfs.tar
sudo umount /mnt

然后运行（当前目录以防万一：/home/user/buildroot/buildroot-2017.05.02/output/images/170831/）：

sudo ../../host/usr/sbin/grub-bios-setup  -b ../../host/usr/lib/grub/i386-pc/boot.img -c grub.img -d . /dev/loop0

我收到以下错误（详细模式）：

./output/host/usr/sbin/grub-bios-setup: info: cannot open `/boot/grub/device.map': No such file or directory.
./output/host/usr/sbin/grub-bios-setup: info: Looking for /dev/loop0.
./output/host/usr/sbin/grub-bios-setup: info: /dev/loop0 is a parent of /dev/loop0.
./output/host/usr/sbin/grub-bios-setup: info: Looking for /dev/loop0.
./output/host/usr/sbin/grub-bios-setup: info: /dev/loop0 is a parent of /dev/loop0.
./output/host/usr/sbin/grub-bios-setup: info: transformed OS device `/dev/loop0' into GRUB device `hostdisk//dev/loop0'.
./output/host/usr/sbin/grub-bios-setup: info: getting the size of ././output/host/usr/lib/grub/i386-pc/boot.img.
./output/host/usr/sbin/grub-bios-setup: info: reading ././output/host/usr/lib/grub/i386-pc/boot.img.
./output/host/usr/sbin/grub-bios-setup: info: getting the size of ././output/host/usr/lib/grub/i386-pc/boot.img.
./output/host/usr/sbin/grub-bios-setup: info: getting the size of ././output/images/170831/grub.img.
./output/host/usr/sbin/grub-bios-setup: info: reading ././output/images/170831/grub.img.
./output/host/usr/sbin/grub-bios-setup: info: getting the size of ././output/images/170831/grub.img.
./output/host/usr/sbin/grub-bios-setup: info: root is `(null)', dest is `hostdisk//dev/loop0'.
./output/host/usr/sbin/grub-bios-setup: info: Opening dest.
./output/host/usr/sbin/grub-bios-setup: info: the size of hostdisk//dev/loop0 is 512000.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to /dev.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to dri.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to snd.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to by-path.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to vfio.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to hugepages.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to mqueue.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to shm.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to ubuntu-vg.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to disk.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to by-label.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to by-uuid.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to by-partuuid.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to by-path.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to by-id.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to block.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to char.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to pts.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to bsg.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to mapper.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to input.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to by-path.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to by-id.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to bus.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to usb.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to 002.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to 001.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to net.
./output/host/usr/sbin/grub-bios-setup: info: changing current directory to lightnvm.
Segmentation fault (core dumped)

【参考方案1】：

我没有解决这个问题，但我找到了另一个解决方案。如果您需要为 buildroot 安装 grub2，只需使用 genimage 并按照说明进行操作：

partition boot 
    in-partition-table = "no"
    image = "boot.img"
    offset = 0
    size = 512
    
    partition grub 
    in-partition-table = "no"
    image = "grub.img"
    offset = 512
    

此实用程序会将 GRUB2 写入您的存储。只需确保在您已经存在的分区之前有大约 1Mb。

它现在对我有用。

附：在 IRC #buildroot 中，我被建议重新编译所有内容并 寻找错误。一点用都没有。