Martin Minka
2007-Aug-12 11:19 UTC
[CentOS] booting CentOS in rescrue mode from USB (+over network)
Hello, is there a way to boot CentOS 4.5 from USB flash key in rescue mode ? The prefered solution would be to have booting part of CentOS started by SysLinux and download the content of CD1 from a network server (HTTP), like Anaconda is able to use command "method". Best regards, Martin
Johnny Hughes
2007-Aug-14 04:28 UTC
[CentOS] booting CentOS in rescrue mode from USB (+over network)
Martin Minka wrote:> Hello, > is there a way to boot CentOS 4.5 from USB flash key in rescue mode ? > The prefered solution would be to have booting part of CentOS started by > SysLinux and download the content of CD1 from a network server (HTTP), > like Anaconda is able to use command "method".It is possible to do this, but is very shaky because it very much depends on your bios support for booting from a usb key. The better way to do this is to just either setup a PXE boot server with support for this vmlinuz/initrd.img: http://mirror.centos.org/centos/5/os/i386/images/pxeboot/ (you pick your version for "5", and your arch for "i386" ... then download off the mirror servers ... then add a "linux rescue" when booting from that on PXE. ===OR== you can put those vmlinuz/initrd.img files on all your servers (somewhere in /boot) and create a grub entry on all the machines that have the kernel line: kernel /path_to/vmlinuz rescue initrd /path_to/initrd.img You will then need to have a tree to point to via a network install. This method works on all centos servers regardless of whether the USB key can be booted from or not. -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 252 bytes Desc: OpenPGP digital signature URL: <http://lists.centos.org/pipermail/centos/attachments/20070813/1b048ec4/attachment-0001.sig>