March 01, 2005
從 PCMCIA disk 開機
Niels Elgaard Larsen 做了一個很有趣的嘗試，修改 pcmcia-cs 讓 PCMCIA disk 可用來開機，詳情可參閱 [Booting from PCMCIA disks]。注意 Niels 的作法，很值得參考：
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The pcmcia-cs project has a pcinitrd script that creates an initrd ram disk image for booting with the root file-system on a PCMCIA device. But is it too big for a floppy disk. It is about 2.5 MByte not including the linux kernel.
Instead I modified the cardmgr.c program from the pcmcia-package to remove unnecessary code, mount /proc, mount a tmpfs drive, set up the card in the first PCMCIA-slot, do a pivot_root() to the new root fs. This is the only program on the initrd. There is not shell. The result is an 212KByte initrd leaving space for even a fat 2.6 kernel.
迴響