Sharp SL-5500 File Manager Guide Bedienungsanleitung PDF herunterladen (Seite 24)

CHAPTER 5. DIFF. IMG. FOR DIFF. PURP. 5.1. FORMATS

Extension Description

.tar.gz, .tar.bz2, .cpio.gz Archived root ﬁlesystem (rootfs), suitable

for installing to a secondary storage by

simply unpacking (the secondary storage

must be already formatted appropriately,

usually with ext2 ﬁlesystem)

.ext2, .ext2.bz2, .img,img.bz2 Integral ﬁlesystem image, which can be

copied (e.g. using dd)

to a secondary storage partition directly.

.jffs2 Flash image, which can be ﬂashed

to internal ﬂash ROM of the speciﬁc device

.summary.jffs2 Same as .jffs2, but with extended “summary”

information allowing to mount ﬂash ﬁlesystem quicker.

(Suggested if space allows.)

.exe Executables for WinCE devices.

Bigger ﬁles are LiveRam Disks,

Smaller ﬁles are bootmanagers (see Chapter 3, p. 8)

zImage Standalone kernel image for ad-hoc boot-loaders

Table 5.2: Different formats of images for

Angstr

om, for different purposes.

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Sharp SL-5500 File Manager Guide Bedienungsanleitung Seite 24