On 12/28/2015 08:16 PM, Mandar Joshi wrote: >> Actually they have shipped F23 and are gearing up for F24... >> > Oh. Well, if you could post the output of the changeuuid.py script, So here is my first attempt: # ./changeuuid.py pretend /dev/sdb /mnt [INFO ] ['/dev/sdb1', '/dev/sdb2', '/dev/sdb3'] [INFO ] /dev/sdb1 ext3 fa926fa0-ddcb-47ea-9731-ea5c92d9f959 7ecd1452-4878-445f-a3f7-78aace20b338 [INFO ] /dev/sdb2 swap 6d5e843e-7dd8-4d70-a08e-4ee9d26828d7 6798ee01-c4a9-4a21-8862-19c67485e74c [INFO ] /dev/sdb3 ext4 770af0f9-c7d9-4ae9-b024-1ba3c78d7550 0ed99662-da6a-4da3-b88f-8e1f78330cbc [INFO ] Unmounting all partitions on /dev/sdb umount: /dev/sdb1: not mounted umount: /dev/sdb2: not mounted umount: /dev/sdb3: not mounted [INFO ] Unmounting /dev/sdb1 /mnt [INFO ] Mounting /dev/sdb3 /mnt [INFO ] Processing File: /mnt/etc/fstab **** Old /etc/fstab **** #Generated by RootFS Build Factory UUID=fa926fa0-ddcb-47ea-9731-ea5c92d9f959 /boot ext3 noatime 0 0 UUID=6d5e843e-7dd8-4d70-a08e-4ee9d26828d7 swap swap noatime 0 0 UUID=770af0f9-c7d9-4ae9-b024-1ba3c78d7550 / ext4 noatime 0 0 **** New /etc/fstab **** #Generated by RootFS Build Factory UUID=7ecd1452-4878-445f-a3f7-78aace20b338 /boot ext3 noatime 0 0 UUID=6798ee01-c4a9-4a21-8862-19c67485e74c swap swap noatime 0 0 UUID=0ed99662-da6a-4da3-b88f-8e1f78330cbc / ext4 noatime 0 0 [INFO ] Mounting /dev/sdb1 /mnt [INFO ] Processing File: /mnt/extlinux/extlinux.conf **** Old /extlinux/extlinux.conf **** #Created by RootFS Build Factory ui menu.c32 menu autoboot centos menu title centos Options #menu hidden timeout 60 totaltimeout 600 label centos kernel /vmlinuz-4.2.3-200.el7.armv7hl append enforcing=0 root=UUID=770af0f9-c7d9-4ae9-b024-1ba3c78d7550 fdtdir /dtb-4.2.3-200.el7.armv7hl initrd /initramfs-4.2.3-200.el7.armv7hl.img **** New /extlinux/extlinux.conf **** #Created by RootFS Build Factory ui menu.c32 menu autoboot centos menu title centos Options #menu hidden timeout 60 totaltimeout 600 label centos kernel /vmlinuz-4.2.3-200.el7.armv7hl append enforcing=0 root=UUID=0ed99662-da6a-4da3-b88f-8e1f78330cbc fdtdir /dtb-4.2.3-200.el7.armv7hl initrd /initramfs-4.2.3-200.el7.armv7hl.img [INFO ] Unmounting /dev/sdb1 /mnt [INFO ] Unmounting /dev/sdb3 /mnt [INFO ] Changing UUID/LABEL for /dev/sdb1 [INFO ] Old:fa926fa0-ddcb-47ea-9731-ea5c92d9f959 New:7ecd1452-4878-445f-a3f7-78aace20b338 [INFO ] Changing UUID/LABEL for /dev/sdb2 [INFO ] Old:6d5e843e-7dd8-4d70-a08e-4ee9d26828d7 New:6798ee01-c4a9-4a21-8862-19c67485e74c [INFO ] Changing UUID/LABEL for /dev/sdb3 [INFO ] Old:770af0f9-c7d9-4ae9-b024-1ba3c78d7550 New:0ed99662-da6a-4da3-b88f-8e1f78330cbc ==================== # ./changeuuid.py change /dev/sdb /mnt [INFO ] ['/dev/sdb1', '/dev/sdb2', '/dev/sdb3'] [INFO ] /dev/sdb1 ext3 fa926fa0-ddcb-47ea-9731-ea5c92d9f959 efdc3d68-a75f-428b-947c-27e2644b8e55 [INFO ] /dev/sdb2 swap 6d5e843e-7dd8-4d70-a08e-4ee9d26828d7 1a5516ef-ee4e-4826-96d2-ea8536f83143 [INFO ] /dev/sdb3 ext4 770af0f9-c7d9-4ae9-b024-1ba3c78d7550 4931f2d3-3d01-4482-9134-735a930c27e3 [INFO ] Unmounting all partitions on /dev/sdb umount: /dev/sdb1: not mounted umount: /dev/sdb2: not mounted umount: /dev/sdb3: not mounted [INFO ] Unmounting /dev/sdb1 /mnt [INFO ] Mounting /dev/sdb3 /mnt [INFO ] Processing File: /mnt/etc/fstab **** Old /etc/fstab **** #Generated by RootFS Build Factory UUID=fa926fa0-ddcb-47ea-9731-ea5c92d9f959 /boot ext3 noatime 0 0 UUID=6d5e843e-7dd8-4d70-a08e-4ee9d26828d7 swap swap noatime 0 0 UUID=770af0f9-c7d9-4ae9-b024-1ba3c78d7550 / ext4 noatime 0 0 **** New /etc/fstab **** #Generated by RootFS Build Factory UUID=efdc3d68-a75f-428b-947c-27e2644b8e55 /boot ext3 noatime 0 0 UUID=1a5516ef-ee4e-4826-96d2-ea8536f83143 swap swap noatime 0 0 UUID=4931f2d3-3d01-4482-9134-735a930c27e3 / ext4 noatime 0 0 [INFO ] Writing /mnt/etc/fstab [INFO ] Unmounting /mnt [INFO ] Mounting /dev/sdb1 /mnt [INFO ] Processing File: /mnt/extlinux/extlinux.conf **** Old /extlinux/extlinux.conf **** #Created by RootFS Build Factory ui menu.c32 menu autoboot centos menu title centos Options #menu hidden timeout 60 totaltimeout 600 label centos kernel /vmlinuz-4.2.3-200.el7.armv7hl append enforcing=0 root=UUID=770af0f9-c7d9-4ae9-b024-1ba3c78d7550 fdtdir /dtb-4.2.3-200.el7.armv7hl initrd /initramfs-4.2.3-200.el7.armv7hl.img **** New /extlinux/extlinux.conf **** #Created by RootFS Build Factory ui menu.c32 menu autoboot centos menu title centos Options #menu hidden timeout 60 totaltimeout 600 label centos kernel /vmlinuz-4.2.3-200.el7.armv7hl append enforcing=0 root=UUID=4931f2d3-3d01-4482-9134-735a930c27e3 fdtdir /dtb-4.2.3-200.el7.armv7hl initrd /initramfs-4.2.3-200.el7.armv7hl.img [INFO ] Writing /mnt/extlinux/extlinux.conf [INFO ] Unmounting /mnt [INFO ] Unmounting /dev/sdb1 /mnt [INFO ] Unmounting /dev/sdb3 /mnt [INFO ] Changing UUID/LABEL for /dev/sdb1 [INFO ] Old:fa926fa0-ddcb-47ea-9731-ea5c92d9f959 New:efdc3d68-a75f-428b-947c-27e2644b8e55 tune2fs 1.42.12 (29-Aug-2014) [INFO ] Changing UUID/LABEL for /dev/sdb2 [INFO ] Old:6d5e843e-7dd8-4d70-a08e-4ee9d26828d7 New:1a5516ef-ee4e-4826-96d2-ea8536f83143 mkswap: /dev/sdb2: warning: wiping old swap signature. Setting up swapspace version 1, size = 512 MiB (536866816 bytes) no label, UUID=1a5516ef-ee4e-4826-96d2-ea8536f83143 [INFO ] Changing UUID/LABEL for /dev/sdb3 [INFO ] Old:770af0f9-c7d9-4ae9-b024-1ba3c78d7550 New:4931f2d3-3d01-4482-9134-735a930c27e3 tune2fs 1.42.12 (29-Aug-2014) ========= I now will unmount this and do it again.