fix(205-builder): limit boot generations to 10 to prevent /boot filling up - #48
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fix(205-builder): limit boot generations to 10 to prevent /boot filling up#48phonkd wants to merge 1 commit into
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…ng up A monitoring alert (DiskWillFillIn24h) reported that /boot on 205-builder will fill within 24 hours. NixOS keeps one kernel+initrd per generation in /boot; with no configurationLimit set, the small vfat partition accumulates unlimited generations. Set boot.loader.grub.configurationLimit = 10 so only the 10 most recent generations are kept in /boot.
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What
A monitoring alert (DiskWillFillIn24h) reported that /boot on 205-builder will fill within 24 hours based on the last 6h of growth.
Root cause
NixOS keeps one kernel+initrd in /boot per generation, and with no
configurationLimitset, /boot (a small vfat partition) accumulates unlimited generations.Fix
Set
boot.loader.grub.configurationLimit = 10so only the 10 most recent generations are kept in /boot. Older kernels are cleaned up automatically during nixos-rebuild.Verification
nixos-rebuild bootshould succeed andls /bootshow at most 10 kernels