Quote:
Originally Posted by jpollard
The only place that a separate /boot partition is significant is in older systems with BIOS that doesn't recognize large disks.
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There are lots of ways to have a / partition that the first stage of grub can't read (various LVM or RAID configurations, etc.).
Very likely the majority of Centos systems have / partitions that grub can't access and thus they need /boot partitions.
Quote:
Originally Posted by jugurtha
it is productive now.
Is there any impact on performance or any risk.
Is iit a must to rebuild, that will be very hard to do for many reasons (applications deployed)
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Obviously grub can access your / partition. There is no performance nor risk issue there. It is a binary thing: works or doesn't work. Your /boot directory works, so you don't have any reason to "fix" it.
In the early days of Linux (before liveCDs) there was risk to having /boot as a directory in / rather than as a partition. But this is ancient history now.