It's possible to mount cdrom in rescue mode ?
because with centos 4.4 in linux rescue mode, the device "cdrom" doesn't exist
-- Denis MACHARD dmachard@fr.netcentrex.net denis.machard@enst-bretagne.fr
Denis Machard spake the following on 1/8/2007 6:31 AM:
It's possible to mount cdrom in rescue mode ?
because with centos 4.4 in linux rescue mode, the device "cdrom" doesn't exist
But does it's actual device exist? IE.. /dev/hdc for an IDE cdrom on the secondary master. There actually is no cdrom device. Your installer just makes a symlink to the proper device file.
On Mon, Jan 08, 2007 at 08:06:50AM -0800, Scott Silva enlightened us:
Denis Machard spake the following on 1/8/2007 6:31 AM:
It's possible to mount cdrom in rescue mode ?
because with centos 4.4 in linux rescue mode, the device "cdrom" doesn't exist
But does it's actual device exist? IE.. /dev/hdc for an IDE cdrom on the secondary master. There actually is no cdrom device. Your installer just makes a symlink to the proper device file.
It may very well be called cdrecorder and not cdrom.
Matt
With command system dmesg , the device is hdc for cdrom
But in /dev/, hdc doesn't exist too
-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Matt Hyclak Sent: lundi 8 janvier 2007 17:11 To: centos@centos.org Subject: Re: [CentOS] Re: Rescue mode
On Mon, Jan 08, 2007 at 08:06:50AM -0800, Scott Silva enlightened us:
Denis Machard spake the following on 1/8/2007 6:31 AM:
It's possible to mount cdrom in rescue mode ?
because with centos 4.4 in linux rescue mode, the device "cdrom" doesn't exist
But does it's actual device exist? IE.. /dev/hdc for an IDE cdrom on the secondary master. There actually is no cdrom device. Your installer just makes a symlink to the proper device file.
It may very well be called cdrecorder and not cdrom.
Matt
-- Matt Hyclak Department of Mathematics Department of Social Work Ohio University (740) 593-1263 _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Denis Machard spake the following on 1/8/2007 8:29 AM:
With command system dmesg , the device is hdc for cdrom
But in /dev/, hdc doesn't exist too
I have never tried to reuse the cdrom in rescue mode. It might be locked, and would explain why the nodes don't get created.I will play with it in vmware. Which rescue Cd are you using? 3, 4, or the live CD.
I'm using the version 4.4 of CentOS Cd with the mode "linux rescue"
-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Scott Silva Sent: lundi 8 janvier 2007 17:42 To: centos@centos.org Subject: [CentOS] Re: Rescue mode
Denis Machard spake the following on 1/8/2007 8:29 AM:
With command system dmesg , the device is hdc for cdrom
But in /dev/, hdc doesn't exist too
I have never tried to reuse the cdrom in rescue mode. It might be locked, and would explain why the nodes don't get created.I will play with it in vmware. Which rescue Cd are you using? 3, 4, or the live CD.
Denis Machard spake the following on 1/8/2007 8:57 AM:
I'm using the version 4.4 of CentOS Cd with the mode "linux rescue"
-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Scott Silva Sent: lundi 8 janvier 2007 17:42 To: centos@centos.org Subject: [CentOS] Re: Rescue mode
Denis Machard spake the following on 1/8/2007 8:29 AM:
With command system dmesg , the device is hdc for cdrom
But in /dev/, hdc doesn't exist too
I have never tried to reuse the cdrom in rescue mode. It might be locked, and would explain why the nodes don't get created.I will play with it in vmware. Which rescue Cd are you using? 3, 4, or the live CD.
I just tried this, and for some reason, there are scsi devices present, but not IDE devices. If you need them, you would need to chroot to your underlying system to use them from there. The only reason I could see to need to mount a cdrom would be to access an rpm or two. You would need your system mounted under /mnt/sysimage anyway. If your system isn't intact enough to do this, then you would need to salvage as much data as possible before attempting to fix it, and that can be done over the network, or with the "live cd".
Thank. Indeed, I would like to mount the cdrom device to access an rpm. For specifical needs, I try to add the support of perl and sshd on rescue mode.
-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Scott Silva Sent: lundi 8 janvier 2007 21:43 To: centos@centos.org Subject: [CentOS] Re: Rescue mode
Denis Machard spake the following on 1/8/2007 8:57 AM:
I'm using the version 4.4 of CentOS Cd with the mode "linux rescue"
-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Scott Silva Sent: lundi 8 janvier 2007 17:42 To: centos@centos.org Subject: [CentOS] Re: Rescue mode
Denis Machard spake the following on 1/8/2007 8:29 AM:
With command system dmesg , the device is hdc for cdrom
But in /dev/, hdc doesn't exist too
I have never tried to reuse the cdrom in rescue mode. It might be locked, and would explain why the nodes don't get created.I will play with it in vmware. Which rescue Cd are you using? 3, 4, or the live CD.
I just tried this, and for some reason, there are scsi devices present, but not IDE devices. If you need them, you would need to chroot to your underlying system to use them from there. The only reason I could see to need to mount a cdrom would be to access an rpm or two. You would need your system mounted under /mnt/sysimage anyway. If your system isn't intact enough to do this, then you would need to salvage as much data as possible before attempting to fix it, and that can be done over the network, or with the "live cd".
-
Denis Machard -
Matt Hyclak -
Robert Spangler -
Scott Silva