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18.15. 序​​​​​​​列​​​​​​​主​​​​​​​控​​​​​​​台​​​​​​​錯​​​​​​​誤​​​​​​​

無​​​​​​​法​​​​​​​接​​​​​​​收​​​​​​​序​​​​​​​列​​​​​​​主​​​​​​​控​​​​​​​台​​​​​​​的​​​​​​​輸​​​​​​​出​​​​​​​。​​​​​​​欲​​​​​​​修​​​​​​​正​​​​​​​這​​​​​​​個​​​​​​​錯​​​​​​​誤​​​​​​​，您​​​​​​​必​​​​​​​須​​​​​​​編​​​​​​​修​​​​​​​ grub.conf 並​​​​​​​更​​​​​​​改​​​​​​​ com 埠​​​​​​​參​​​​​​​數​​​​​​​： 
serial  --unit=1  --speed=115200

title RHEL5 i386 Xen (2.6.18-1.2910.el5xen)
root (hd0, 8)
kernel /boot/xen.gz-2.6.18-1.2910.el5 com2=115200,8n1
module /boot/vmlinuz-2.6.18-1.2910.el5xen to root=LABEL=RHEL5_i386 console=tty console=ttyS1115200
module /boot/initrd-2.8.6.18-12910.el5xen.img

title RHEL5 i386 xen (2.6.18.-1.2910.el5xen
root (hd0, 8)
kernel /boot/xen.gz-2.6.18-1.2910.el5 com2=115200 console=com2l
module /boot/vmlinuz2.6.18-1.2910.el5xen to root=LABEL=RHEL5_i386 console=xvc xencons=xvc
module /boot/ititrd-2.6.18-1.2910.el5xen.img
這​​​​​​​個​​​​​​​ grub.conf 變​​​​​​​更​​​​​​​應​​​​​​​該​​​​​​​能​​​​​​​讓​​​​​​​序​​​​​​​列​​​​​​​主​​​​​​​控​​​​​​​台​​​​​​​恢​​​​​​​復​​​​​​​正​​​​​​​常​​​​​​​運​​​​​​​作​​​​​​​。​​​​​​​您​​​​​​​應​​​​​​​該​​​​​​​可​​​​​​​以​​​​​​​使​​​​​​​用​​​​​​​任​​​​​​​何​​​​​​​數​​​​​​​字​​​​​​​在​​​​​​​ ttyS 上​​​​​​​，如​​​​​​​ ttyS0。​​​​​​​