grub在efi模式限制内存大小为1.6g //grub-core/kern/efi/mm.c#define MAX_HEAP_SIZE (1600 * 0x100000) 但是事实上超过大约500M就out of memory了 内存在grub_efi_mm_init函数初始化 其中filter_memory_map函数会筛选出类型为GRUB_EFI_CONVENTIONAL_MEMORY的内存映射 get_total_pages进行求和,得到可用内存页(可...
Since a memory problem is reported, it would be useful to know how much RAM is in your system and if you have recently changed the BIOS or memory modules in your system I have 32G of ram, no new changes in hardware or bios. It really just happen with the fedora ISOs I have. Also ...
B.Fedora Core 安装Grub,从硬盘iso安装,安装grub也走了不少弯路,其实很简单,只是没有认真看资料这也是redhat公司的,也不错,只是安装好后,不能使用网卡,它能认出3c59X,可就是不能将eth0 map到硬件,找了很久,才在国外一论坛上发出同样的问题,听说是因为acpi的原因,也就是说,2.6的内核都有这样的问题。 C.安...
如下图所示,GRUB 的执行顺序为boot.img --> core.img --> /boot/grub/。 BIOS 引导方式中,MBR 分区表和 GPT 分区表的 GRUB 引导文件所放分区不同: (1) 在 MBR 分区表中,boot.img 和 core.img 都在 MBR 中。MBR 虽然只占用一个扇区(512Byte),但是其所在的磁道是空闲的,不会用于分区,可以放下 co...
+ goto out; + } + grub_dprintf ("secureboot", "SetupMode: %d\n", *setup_mode); if (*secure_boot && !*setup_mode) ret = 1; diff --git a/grub-core/loader/arm64/linux.c b/grub-core/loader/arm64/linux.c index a312c66868..04994d5c67 100644 --- a/grub-core...
You now know the physical and logical structure of a Linux system, what the kernel is, and how to work with processes. This chapter will teach you how the kernel starts— or boots. In other words, you’ll learn how the kernel moves into memory up to the point where the first user pr...
grub>kernel /boot/grub/core.img grub>boot 1. 2. 3. 代码: sudo grub-install /dev/sd? 1. 引用: sudo -i mount 你的根分区 /mnt mount 你的/boot 分区 /mnt/boot #如果有的话 #挂载你其他的分区,如果有的话 # 重建grub到sda的mbr
1.build kernel之时的各个configuration选项。 2.当kernel启动之时,可以参数在kernel被GRUB或LILO等启动程序调用之时传递给kernel。 3.在kernel运行时,修改/proc或/sys目录下的文件。 这里我简单讲的就是第二种方式了,kernel在grub中配置的启动参数。 首先,kernel有哪些参数呢? 在linux的源代码中,有这样的一个文档...
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cat/boot/grub2/grub.cfg|grep menuentry 回显信息类似如下所示,引号中间的内容为内核名称,例如:CentOSLinux(3.10.0-123.9.3.el7.x86_64)7(Core)。执行以下命令,配置从最新内核启动。例如,CentOSLinux(3.10.0-229.14.1.el7.x86_64)7... ECS实例系统启动失败时报“UNEXPECTED INCONSISTENCY;... ...