starting version 221
running hook [udev]
triggering uevents...
[
[
running hook [memdisk]
running hook [archiso]
running hook [archiso_loop_mnt]
running hook [archiso_pxe_common]
running hook [archiso_pxe_nbd]
running hook [archiso_pxe_http]
running hook [archiso_pxe_nfs]
Mounting '/dev/disk/by-label/ARCH_201601' to '/run/archiso/bootmnt'
Waiting 30 seconds for device /dev/disk/by-label/ARCH_201601 ...
ERROR: '/dev/disk/by-label/ARCH_201601' device did not show up after 30 seconds...
Falling back to interactive promt
You can try to fix the problem manually, log out when are finished
sh: can't access tty: job control turned off
[rootfs/]#
发现pxe启动到这里会报错，说没有对应的盘，相信玩过Arch硬盘安装的都知道，到这里需要挂盘到某个目录映射loop设备才能继续，如：
mkdir /arch
mount -t vfat /dev/sda5 /arch
modprob loop
losetup /dev/loop20 /arch/archlinux-2016.01.01-dual.iso
ln -s
/dev/loop20
补充：硬盘安装grub2范例
menuentry "Arch Linux (x86_64)" {
set isofile="/mnt/ISO/archlinux-2016.01.01-dual.iso"
loopback loop (hd0,4)$isofile
linux (loop)/arch/boot/x86_64/vmlinuz archisolabel=ARCH_201601 img_loop=$isofile
initrd (loop)/arch/boot/x86_64/archiso.img
}
但这里的pxe安装，继续找问题，这个问题和官方文档比对后仍然没有等到解决，终于
https://github.com/kyv/archiso
** hooks/archiso_pxe_http
* archiso_http_srv= Set an HTTP URL (must end with /) where ${archisobasedir}
is found with all *.sfs files.
In the IP/domain part if ${pxeserver} is used, use PXE IP.
Default: (unset)
* archiso_http_spc= Set the size of tmpfs where *.sfs files are downloaded.
Default: "75%"
** hooks/archiso_pxe_nfs
* archiso_nfs_srv= Set the NFS-IP:/path of the server
In the IP part if ${pxeserver} is used, PXE IP will be used.
Default: (unset)
* archiso_nfs_opt= Set NFS mount options separated by comma.
Default: (unset, see below)
http://releng.archlinux.org/pxeboot/
试了下官方公网pxe安装环境，用的是ipxe.pxe来启动
可以后到，首先通过本地的ipxe.pxe启动后重定向到了archlinux的官方pxe环境，加载pxelinux.0,arch.cfg
也是加载vmlinuz,archiso.img
出鬼了，我本地pxe也是加载iso里对应的vmlinuz,archiso.img，HTTP,NFS确定可以正常访问，为啥就到不了那一步，于是我开始怀疑，是不是加载的vmlinuz,archiso.img不对，因为像ubuntu,debian这些发行版的pxe引导镜像不能用iso里的，于是就到http://mirrors.163.com/archlinux/iso/2016.01.01/上去比对差异
但并没有差异，163上也是从光盘里提取出来的，但我本地启动就报如下错误
但到这里我可以确定引导文件没问题，唯一有可能出问题的地方就是引导参数，于是比对官方引导选项
下面是我的参数配置，
label arch64_http
menu label Boot Arch Linux (x86_64) (HTTP)
linux /arch/vmlinuz
initrd /arch/intel_ucode.img,/arch/archiso.img
append archisobasedir=arch archiso_http_srv=http://${pxeserver}/ftp/arch/
sysappend 3
或
label arch64_http
menu label Boot Arch Linux (x86_64) (HTTP)
linux /arch/vmlinuz
append archisobasedir=arch archiso_http_srv=http://${pxeserver}/ftp/arch/ initrd=/arch/archiso.img
label arch64_http
menu label Boot Arch Linux (x86_64) (HTTP)
linux /arch/vmlinuz
initrd /arch/intel_ucode.img,/arch/archiso.img
append archisobasedir=arch
ip=dhcp archiso_http_srv=http://${pxeserver}/ftp/arch/
sysappend 3
label arch64_nfs
menu label Boot Arch Linux (x86_64) (NFS)
linux /arch/vmlinuz
initrd /arch/intel_ucode.img,/arch/archiso.img
append archisobasedir=arch ip=dhcp archiso_nfs_srv=${pxeserver}:/var/www/pub/ftp/arch
sysappend 3
label arch64_nbd
menu label Boot Arch Linux (x86_64) (NBD)
linux /arch/vmlinuz
initrd /arch/intel_ucode.img,/arch/archiso.img
append archisobasedir=arch
archisolabel=ARCH_201601
sysappend 3