854 B
854 B
ZeroDownTime Alpine
Disklayout
Inspired by ChromeOS.
| Partition | Label | Size | Comment |
|---|---|---|---|
| 1 | EFI | 128M | EFI Grub, Syslinux for legacy BIOS |
| 2 | RootA | 4GB | Slot A - RootFS incl. kernel and initrd |
| 3 | RootB | 4GB | Slot B - RootFS incl. kernel and initrd |
| 4 | Data | 100% | (LUKS optional) + LVM: /var, ... |
OS upgrades are atomic. If running using Slot A, the upgrade will install the new OS and Kernel into Slot B and switch the default boot order in grub.cfg residing in the EFI partition.
First boot
Instance meta-data on bare-metal is stored next to EFI bootloader in partition one as yaml.
During first boot of Slot A or B, tiny-cloud will use the NoCloud meta-data yaml to bootstrap the instance.