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| But there is also an alternative: | | But there is also an alternative: |
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| == ISO image customizations with an APKOVL ==
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| The "diskless" Alpine ISO images seem to look for an .apkovl volume in system partitions, and offer to save local backups and package cache to mountpoints below /media/. (Besides supporting a boot parameter that points to a web server.)
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| # Boot the diskless system from ISO, and if necessary create and format a partition.
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| # Edit /etc/fstab and mount the writable partition below /media/.
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| # Run alpine-setup and choose to save the state to the mounted partition.
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| # Customize the system.
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| # Generate an APKOVL file with [[Alpine_local_backup|lbu]] by executing <code>lbu commit</code>
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| (If instead you put the APKOVL file on a webserver, you would need to supply a custom url with the <code>APKOVL</code> kernel boot parameter.)
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| Notes:
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| * See [[Alpine_Linux_package_management#Local_Cache]] about managing included packages.
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| * See [[Alpine_local_backup|lbu]] about how to customize it to cover files outside of <code>/etc</code>.
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| * Any packages you add to /etc/apk/world of your lbu will also automatically be installed in the live system.
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| * If you don't have a web server you can run busybox's httpd temporarily - <code>busybox httpd -p 127.0.0.1:80</code>
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| == Booting an ISO image with local customizations == | | == Booting an ISO image with local customizations == |
Revision as of 15:50, 9 May 2020
One way to completely re-build custom images is to use a script like alpine-make-vm-image.
- If you want to make a customized installer, you need to create
.default_boot_services which will cause mkinitfs to create the defaults for the live image.
But there is also an alternative:
Booting an ISO image with local customizations
- From dedicated boot media, obviously.
- (Example included:) Booting and customizing an ISO image with an .apkovl in a Qemu virtual machine.
- Using e.g. Debian's grub-imageboot package and booting .iso files directly, instead of partitions.