Arch Linux

JimmyZ

Member

Registered: 2026-04-04

Posts: 8

mkinitcpio-archiso/hooks/archiso_pxe_http wastes RAM

https://gitlab.archlinux.org/archlinux/ … =heads#L10

there's a hard coded copytoram = "y" which causes the squashfs image being copied from /run/archiso/httpspace/ to /run/archiso/copytoram/, doubles RAM usage.

BTW there's a comment above saying "... make sure addresses are flushed and interface is set down", I'd assume something better than copying stuff in RAM shouldn't be too hard?

JimmyZ

Member

Registered: 2026-04-04

Posts: 8

Re: mkinitcpio-archiso/hooks/archiso_pxe_http wastes RAM

Oh, you can simply delete the one in /run/archiso/httpspace/ after booting it up, saves some 900MB of RAM.

-thc

Member

Registered: 2017-03-15

Posts: 1,116

Re: mkinitcpio-archiso/hooks/archiso_pxe_http wastes RAM

That sounds like you boot Arch via IPXE and want to use it as a productive platform?
For me it's only an emergency system in case something in my machine or the Arch installation goes wrong.

JimmyZ

Member

Registered: 2026-04-04

Posts: 8

Re: mkinitcpio-archiso/hooks/archiso_pxe_http wastes RAM

Thanks for the reply, but no I'm not, and that's irrelevant from the bug, albeit not a serious one.

Last edited by JimmyZ (2026-04-06 04:14:21)

seth

Member

From: Don't DM me only for attention

Registered: 2012-09-03

Posts: 74,273

Re: mkinitcpio-archiso/hooks/archiso_pxe_http wastes RAM

Introduced with https://gitlab.archlinux.org/archlinux/ … 5f8a4ca59d
=> https://gitlab.archlinux.org/archlinux/ … work_items
Discussing that here won't change anything about the situation, also there was probably some reason that deemed this a necessity/desirable.

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