OpenWRT x86 Style Disks and Booting: Difference between revisions

Line 4:

===For Cloning a Drive===

Copy the "MBR Gap" (GRUB Stage 1.5, containing the CORE.IMG file): <code>dd if=/dev/sdX of=/dev/sdY bs=512 ~~skip=1~~ count=511</code>

Copy the MBR and "MBR Gap" (GRUB Stage 1, GRUB Stage 1.5 (containing the CORE.IMG file)): <code>dd if=/dev/sdX of=/dev/sdY bs=512 count=511</code>

Copy the MBR (GRUB Stage 1 and Partition Table): <code>dd if=/dev/sdX of=/dev/sdY bs=512 count=1</code>

* Breaking it down into two steps, see below (but watch out, because for some reason DD doesn't seem to do something right regardless of the order the below are done);

* Copy the "MBR Gap" (GRUB Stage 1.5, containing the CORE.IMG file): <code>dd if=/dev/sdX of=/dev/sdY bs=512 skip=1 count=511</code>

* Copy the MBR (GRUB Stage 1 and Partition Table): <code>dd if=/dev/sdX of=/dev/sdY bs=512 count=1</code>

Copy the First Partition (/boot Directory): <code>dd if=/dev/sdX1 of=/dev/sdY1 bs=128M conv=noerror progress=status</code>

Line 29:

Line 31:

*If conv=sync is used an out of space error will occur.

=== To Convert a SquashFS version of OpenWRT to an EXT4 version of OpenWRT ===

===To Convert a SquashFS version of OpenWRT to an EXT4 version of OpenWRT===

* Copy the MBR, "MBR Gap", and First Partition ( /boot Directory ) per the "Cloning a Drive" Section

*Copy the MBR, "MBR Gap", and First Partition ( /boot Directory ) per the "Cloning a Drive" Section

* Edit the /boot/grub/grub.cfg file, changing portion of the ''menuentry'', from <code>rootfstype=squashfs</code> to <code>rootfstype=ext4</code>

*Edit the /boot/grub/grub.cfg file, changing portion of the ''menuentry'', from <code>rootfstype=squashfs</code> to <code>rootfstype=ext4</code>

* Format the Second Partition: <code>mkfs.ext4 -L WhatEverName -v /dev/sda2 (-L = Label (can be named ROOT for clarity), -v = Verbose)</code>

*Format the Second Partition: <code>mkfs.ext4 -L WhatEverName -v /dev/sda2 (-L = Label (can be named ROOT for clarity), -v = Verbose)</code>

* Resize the Second Partition (if cloned from a "Virgin OpenWRT" install) to a larger size using GParted or CFDISK (16 GB is more than enough)

*Resize the Second Partition (if cloned from a "Virgin OpenWRT" install) to a larger size using GParted or CFDISK (16 GB is more than enough)

*

Tips;

* Use GParted to Locate Mount Points and to resize Partitions (if using a Live Rocky Linux, CentOS, etc. USB Based , the mount points en

*Use GParted to Locate Mount Points and to resize Partitions (if using a Live Rocky Linux, CentOS, etc. USB Based , the mount points for Rocky Linux, etc, end up in /run/media/root/WhatEverMountPoint by default.

@@ Line 4: / Line 4: @@
 ===For Cloning a Drive===
-Copy the "MBR Gap" (GRUB Stage 1.5, containing the CORE.IMG file): <code>dd if=/dev/sdX of=/dev/sdY bs=512 skip=1 count=511</code>
+Copy the MBR and "MBR Gap" (GRUB Stage 1, GRUB Stage 1.5 (containing the CORE.IMG file)): <code>dd if=/dev/sdX of=/dev/sdY bs=512 count=511</code>
-Copy the MBR (GRUB Stage 1 and Partition Table): <code>dd if=/dev/sdX of=/dev/sdY bs=512 count=1</code>
+* Breaking it down into two steps, see below (but watch out, because for some reason DD doesn't seem to do something right regardless of the order the below are done);
+* Copy the "MBR Gap" (GRUB Stage 1.5, containing the CORE.IMG file): <code>dd if=/dev/sdX of=/dev/sdY bs=512 skip=1 count=511</code>
+* Copy the MBR (GRUB Stage 1 and Partition Table): <code>dd if=/dev/sdX of=/dev/sdY bs=512 count=1</code>
 Copy the First Partition (/boot Directory): <code>dd if=/dev/sdX1 of=/dev/sdY1 bs=128M  conv=noerror progress=status</code>
@@ Line 29: / Line 31: @@
 *If conv=sync is used an out of space error will occur.
-=== To Convert a SquashFS version of OpenWRT to an EXT4 version of OpenWRT ===
+===To Convert a SquashFS version of OpenWRT to an EXT4 version of OpenWRT===
-* Copy the MBR, "MBR Gap", and First Partition ( /boot Directory ) per the "Cloning a Drive" Section
+*Copy the MBR, "MBR Gap", and First Partition ( /boot Directory ) per the "Cloning a Drive" Section
-* Edit the /boot/grub/grub.cfg file, changing portion of the ''menuentry'', from <code>rootfstype=squashfs</code> to <code>rootfstype=ext4</code>
+*Edit the /boot/grub/grub.cfg file, changing portion of the ''menuentry'', from <code>rootfstype=squashfs</code> to <code>rootfstype=ext4</code>
-* Format the Second Partition: <code>mkfs.ext4 -L WhatEverName -v /dev/sda2 (-L = Label (can be named ROOT for clarity), -v = Verbose)</code>
+*Format the Second Partition: <code>mkfs.ext4 -L WhatEverName -v /dev/sda2 (-L = Label (can be named ROOT for clarity), -v = Verbose)</code>
-* Resize the Second Partition (if cloned from a "Virgin OpenWRT" install) to a larger size using GParted or CFDISK (16 GB is more than enough)
+*Resize the Second Partition (if cloned from a "Virgin OpenWRT" install) to a larger size using GParted or CFDISK (16 GB is more than enough)
+*
 Tips;
-* Use GParted to Locate Mount Points and to resize Partitions (if using a Live Rocky Linux, CentOS, etc. USB Based , the mount points en
+*Use GParted to Locate Mount Points and to resize Partitions (if using a Live Rocky Linux, CentOS, etc. USB Based , the mount points for Rocky Linux, etc, end up in /run/media/root/WhatEverMountPoint by default.