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--- devdoc:devdoc_create_image [2010/08/23 13:27]
droemel
+++ devdoc:devdoc_create_image [2022/05/21 10:53] (current)
mkeuter
@@ Line 1: / Line 1: @@
-====== Create an image ======
+====== Create a Flash Image ======
-Use ''dmesg'' to figure out the size of the CF when you insert it into your build system.
+After running ''./scripts/build'', do:
-You'll need the size of the CF in megabytes.  A 4GB CF isn't 4096MB long, due to overhead from housekeeping, emulation, and geometry.  So you'll need the exact number (or round down if you're not sure).
+  ./scripts/astlinux-makeimage -z 256 256 0
-After running ''toolchain/build'', do:
+This creates an astlinux-xxx.img.gz file with a single FAT16 partition of 256MB.
-  ./makerunnix.sh -A -z 3998 192 1856
+Burn this image to a CF or USB flash drive:
-in this case, 3998 is what my 4GB card has in usable space in MB.  192MB is the size of my VFAT partition.
+  zcat astlinux-xxx.img.gz | dd of=/dev/sdc bs=64k
-Images are slightly less than 60MB, so 192 is enough room for 3 images.
+(if ''/dev/sdc'' is where my system detects the CF... Be very careful to get ''of='' correct...)
-MB is the size of ASTURW partition, which includes (for me) log files, voice mail, etc.  In this case, I'm using roughly half the card and leaving the rest unused.
-The -A argument tells it to partition, format, and label the ASTURW filesystem.  I'll still need to run genunion once I've booted up this image.
-The -z argument means to compress the image (since the ASTURW partition will be large but empty) to save space on my hard drive (since at any given time, I might have a dozen images).
-When this completes, I can do:
-  zcat astlinux-trunk-4337.img.gz | dd of=/dev/sdc bs=64k
-(if ''/dev/sdc'' is where my system detects the CF... again, use the info from ''dmesg'' to figure out where this is. Be very careful... we're not hunting wabbits.)
 If you hadn't used the -z flag, then it would just be:
-  dd if=astlinux-trunk-4337.img of=/dev/sdc bs=64k
+  dd if=astlinux-xxx.img of=/dev/sdc bs=64k
 to burn this image onto a CF.
@@ Line 36: / Line 24: @@
   sync
-and then to verify the image, do:
+At this point, you may remove your CF and install it into your target system, power up... boot,\\ and follow **[[userdoc:new-install|New Installation]]** to complete the process.
-  sudo fdisk -l -u /dev/sdc
+\\
-to confirm it was written correctly.
-At this point, you may remove your CF and install it into your target system, power up... boot, and run "genunion" to complete the process.
-\\
 \\
-//This article is written by Philip.//
+!!Note:!! The above ''./scripts/astlinux-makeimage'' part does NOT work in a virtual machine, which runs as an LXC container (e.g. in Proxmox). You'll need a "real" VM (with full Hardware-Virtualization) for this to work.