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解决 file /isolinux/vmlinuz0 not found
用centos7打了一个livecd，详细过程就不说了，在mbr机器上安装没有问题，但在efi设备上安装时会报告：file /isolinux/vmlinuz0 not found
进grub2命令行调试：
>ls
后只能找到 efi 目录，找不到cdrom下的其他目录。
这种情况应该是root目录设置有问题，解压开cdrom中的efiboot.img,看 grub.cfg
对比centos的efiboot.img中的grub.cfg
- set default="0"
- function load_video {
- insmod efi_gop
- insmod efi_uga
- insmod video_bochs
- insmod video_cirrus
- insmod all_video
- }
- load_video
- set gfxpayload=keep
- insmod gzio
- insmod part_gpt
- insmod ext2
- set timeout=30
- menuentry 'Install or Upgrade MCOS-cServer-host-x86-4.4.0-201608150617' --class fedora --class gnu-linux --class gnu --class os {
- linuxefi /isolinux/vmlinuz0 crashkernel=256M root=live:CDLABEL=massclouds-node-iso rootfstype=auto ro liveimg rootflags=ro elevator=deadline install rhgb rd_NO_MULTIPATH rd.luks=0 rd.md=0 rd.dm=0 kvm-intel.nested=1
- initrdefi /isolinux/initrd0.img
- }
- menuentry 'Install or Upgrade with serial console MCOS-cServer-host-x86-4.4.0-201608150617' --class fedora --class gnu-linux --class gnu --class os {
- linuxefi /isolinux/vmlinuz0 crashkernel=256M root=live:CDLABEL=massclouds-node-iso rootfstype=auto ro liveimg rootflags=ro elevator=deadline install rhgb rd_NO_MULTIPATH rd.luks=0 rd.md=0 rd.dm=0 console=ttyS0,115200n8 kvm-intel.nested=1
- initrdefi /isolinux/initrd0.img
- }
- menuentry 'Reinstall MCOS-cServer-host-x86-4.4.0-201608150617' --class fedora --class gnu-linux --class gnu --class os {
- linuxefi /isolinux/vmlinuz0 crashkernel=256M root=live:CDLABEL=massclouds-node-iso rootfstype=auto ro liveimg rootflags=ro elevator=deadline install rhgb rd_NO_MULTIPATH rd.luks=0 rd.md=0 rd.dm=0 reinstall kvm-intel.nested=1
- initrdefi /isolinux/initrd0.img
- }
- menuentry 'Reinstall with serial console MCOS-cServer-host-x86-4.4.0-201608150617' --class fedora --class gnu-linux --class gnu --class os {
- linuxefi /isolinux/vmlinuz0 crashkernel=256M root=live:CDLABEL=massclouds-node-iso rootfstype=auto ro liveimg rootflags=ro elevator=deadline install rhgb rd_NO_MULTIPATH rd.luks=0 rd.md=0 rd.dm=0 reinstall console=ttyS0,115200n8 kvm-intel.nested=1
- initrdefi /isolinux/initrd0.img
- }
- menuentry 'Uninstall' --class fedora --class gnu-linux --class gnu --class os {
- linuxefi /isolinux/vmlinuz0 crashkernel=256M root=live:CDLABEL=massclouds-node-iso rootfstype=auto ro liveimg rootflags=ro elevator=deadline install rhgb rd_NO_MULTIPATH rd.luks=0 rd.md=0 rd.dm=0 uninstall kvm-intel.nested=1
- initrdefi /isolinux/initrd0.img
- }
缺少了一行：
- set default="1"
- function load_video {
- insmod efi_gop
- insmod efi_uga
- insmod video_bochs
- insmod video_cirrus
- insmod all_video
- }
- load_video
- set gfxpayload=keep
- insmod gzio
- insmod part_gpt
- insmod ext2
- set timeout=60
- ### END /etc/grub.d/00_header ###
- search --no-floppy --set=root -l 'CentOS 7 x86_64'
- ### BEGIN /etc/grub.d/10_linux ###
- menuentry 'Install CentOS Linux 7' --class fedora --class gnu-linux --class gnu --class os {
- linuxefi /images/pxeboot/vmlinuz inst.stage2=hd:LABEL=CentOS\x207\x20x86_64 quiet
- initrdefi /images/pxeboot/initrd.img
- }
- menuentry 'Test this media & install CentOS Linux 7' --class fedora --class gnu-linux --class gnu --class os {
- linuxefi /images/pxeboot/vmlinuz inst.stage2=hd:LABEL=CentOS\x207\x20x86_64 rd.live.check quiet
- initrdefi /images/pxeboot/initrd.img
- }
- submenu 'Troubleshooting -->' {
- menuentry 'Install CentOS Linux 7 in basic graphics mode' --class fedora --class gnu-linux --class gnu --class os {
- linuxefi /images/pxeboot/vmlinuz inst.stage2=hd:LABEL=CentOS\x207\x20x86_64 xdriver=vesa nomodeset quiet
- initrdefi /images/pxeboot/initrd.img
- }
- menuentry 'Rescue a CentOS Linux system' --class fedora --class gnu-linux --class gnu --class os {
- linuxefi /images/pxeboot/vmlinuz inst.stage2=hd:LABEL=CentOS\x207\x20x86_64 rescue quiet
- initrdefi /images/pxeboot/initrd.img
- }
- }
search--no-floppy--set=root-l'massclouds-node-iso'
将这一行添加到livecd中efiboot.img中的grub.cfg中打包测试。