Booting Back Into CentOS-6

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I’m currently running CentOS-7, but I’d like to re-boot into CentOS-6.5
which I have on another partition. Although this OS is in the grub list when I boot, if I try to run it I get a segfault. I guess this is something to do with the change from grub to grub2?

In any case, I’m wondering if there is any simple way of booting into both CentOS-6 and CentOS-7?

2 thoughts on - Booting Back Into CentOS-6

  • This, IMHO, is one of the more annoying bugs with the newer GRUB (which i assume is the bootloader you are using). Specifically the newer grub can’t, won’t boot from a drive other than the one grub is on. suggest you revert to grub 0.97 or, if any boot loader is or can be put on the drive with the 6.5 distro you can make that drive the boot drive in the bios, which is how i do it. i.e. i just put grub on any drive i might want to boot from and install etc. with the drive i want to be able to boot to set as the boot drive in the bios. of course, depending on how you are mounting drives this may break links etc. since the bios will have different names for the drives due to the different order of the boot media list in the bios. hope that helps, it is highly annoying.

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  • Am 29.05.2015 um 03:23 schrieb Timothy Murphy :

    “Where” did this segfault happend?

    Did it (C6) run before C7 on the same machine?
    How is your root fs mounted (c6:/etc/fstab)?

    normally this is not a problem …