Apologies if this "user" question has been asked before. Tomorrow I will be stopping a couple of dozen kvm virtual machines running various Linux distros and running a forced e2fsck on all of their ext filesystems. The distros are a mix of various flavours of Ubuntu, Debian and Centos, so will include some fs created with older kernels and E2fsprogs. The host is 64-bit Centos 6 running vanilla kernel 3.14.39. I figured I'll build the latest E2fsprogs 1.42.12 for this rather than using the Centos 6 e2fsprogs-1.41.12-21.el6.x86_64. My question is; should it be safe in theory to use the latest E2fsprogs on a mix of ext filesystems in this way? I would have thought so but don't want to rely on any assumptions :-) I'll be setting up device maps on the host server to get to the filesystems on each VMs virtual disk, and doing read only checks. But if anything needs a repair then I could potentially have a fs modified on newer kernel & userspace that then has to boot inside a VM with a distro with much older kernel and userspace such as Centos 5, which is what I'm concerned about. Thanks, Dan -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
