[CentOS] kickstart installation from usb key

Georghy fusco at wanagain.net
Tue Feb 2 14:43:25 UTC 2010

John Doe a écrit :
> From: Georghy <fusco at wanagain.net>
>> what i have done :
>> creating a fat 32 partition on my USB key (4 GB)
>> tagging it with boot flag
>> copy MBR on the key :
>> dd if=/dev/sdb of=/tmp/mbr_sdb.bin bs=512 count=1
>> Using syslinux :
>> syslinux /dev/sdb1
> Your dd command seems to be reversed...
> You are taking the MBR from the key and putting it into a file...
> Instead of: dd if=/usr/share/syslinux/mbr.bin of=/dev/sdb
> Anyway, from your error message, you seem to start to boot...
> Did you modify your syslinux.cfg to have something like this?
>   append initrd=initrd.img ks=hd:sdb2:/ks/ks.cfg method=hd:sdb2:/where_my_centos_iso_files_are
> Did you copy the CentOS ISO file(s) in /where_my_centos_iso_files_are/?
> JD
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I had to ks.cfg :
ignoredisk --drives=sdb
because we don't want anaconda to write mbr on the key

harddrive --partition=sdb1 --dir=iso
sdb1 as one FAT32 partition so it's sdb1 in the directory iso

bootloader --location=mbr --driveorder=sda,sdb

on syslinux.cfg :

label kickstart
  kernel vmlinuz
  append initrd=initrd.img  ks=hd:sdb1:/ks/ks.cfg method=hd:sdb1:/iso

Georghy FUSCO

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