Re: [CentOS] CentOS Live CD for System Rescue - How to get full root access to HD?
On Tue, Nov 11, 2008 at 9:10 AM, Robert <[EMAIL PROTECTED]> wrote: > Lanny Marcus wrote: >> Booting from the CentOS 5.2 Installation DVD (or the first >> Installation CD), one can type "linux rescue" and then "chroot >> /mnt/sysimage" and have full root access to the OS on the HD. For >> future reference, I would like to know what I did wrong, the past >> couple of days, when trying to use the CentOS 5.2 i386 Live CD, for >> rescue. From a terminal, "su -" did not seem to get me root access to >> the hard drive. What command should I have used, with the Live CD? The >> access I had was read only. (As it turns out, I could have fixed the >> problem, without the LiveCD, but I didn't know that, 3 days ago >> :-) ) TIA. Lanny the boot partition, /dev/hda2 was mounted Read-Only (ro). > To work around that little problem, simply: > # mount /dev/hda2 -o rw,remount > which remounts the partition Read-Write so you can work with it instead of > only observe. Thanks! > Now, I believe the Live CD is missing the chroot command. This means you > have to do the "bookkeeping" manually. The grub.conf file (normally at > /boot/grub/grub.conf) will now appear at /mnt/disc/hda2/grub/grub.conf. > Note that there is no "/boot" in that path. Yes. The paths were very different, when running on the Live CD. > And yes, the farther you are from the monitor, the clearer it all becomes. Many years ago, I bought a handheld VHF radio transceiver. In the manual, is said something like, "if you get frustrated, put the radio down and go get a cup of coffee". Distance from the problem frequently helps... I appreciate your input! ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS Live CD for System Rescue - How to get full root access to HD?
Lanny Marcus wrote: Booting from the CentOS 5.2 Installation DVD (or the first Installation CD), one can type "linux rescue" and then "chroot /mnt/sysimage" and have full root access to the OS on the HD. For future reference, I would like to know what I did wrong, the past couple of days, when trying to use the CentOS 5.2 i386 Live CD, for rescue. From a terminal, "su -" did not seem to get me root access to the hard drive. What command should I have used, with the Live CD? The access I had was read only. (As it turns out, I could have fixed the problem, without the LiveCD, but I didn't know that, 3 days ago :-) ) TIA. Lanny Referring to one of your earlier posts, [EMAIL PROTECTED] ~]$ mount /dev/mapper/livecd-rw on / type ext3 (rw,noatime) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) tmpfs on /dev/shm type tmpfs (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) /dev/hdc on /mnt/live type iso9660 (ro) /dev/hda2 on /mnt/disc/hda2 type ext3 (ro) /dev/mapper/VolGroup00-LogVol00 on /mnt/lvm/VolGroup00-LogVol00 type ext3 (ro) sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw) the boot partition, /dev/hda2 was mounted Read-Only (ro). To work around that little problem, simply: # mount /dev/hda2 -o rw,remount which remounts the partition Read-Write so you can work with it instead of only observe. Now, I believe the Live CD is missing the chroot command. This means you have to do the "bookkeeping" manually. The grub.conf file (normally at /boot/grub/grub.conf) will now appear at /mnt/disc/hda2/grub/grub.conf. Note that there is no "/boot" in that path. And yes, the farther you are from the monitor, the clearer it all becomes. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS Live CD for System Rescue - How to get full root access to HD?
Booting from the CentOS 5.2 Installation DVD (or the first Installation CD), one can type "linux rescue" and then "chroot /mnt/sysimage" and have full root access to the OS on the HD. For future reference, I would like to know what I did wrong, the past couple of days, when trying to use the CentOS 5.2 i386 Live CD, for rescue. From a terminal, "su -" did not seem to get me root access to the hard drive. What command should I have used, with the Live CD? The access I had was read only. (As it turns out, I could have fixed the problem, without the LiveCD, but I didn't know that, 3 days ago :-) ) TIA. Lanny ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
