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file /boot/initrd-2.6.18-194.8.1.el5.img
#/boot/initrd-2.6.18-194.8.1.el5.img: gzip compressed data, from Unix, last modified: Tue Jul 13 18:30:50 2010, max compression
Rename it to end in .gz and uncompress:
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gzip -d initrd-2.6.18-194.8.1.el5.img.gz
file initrd-2.6.18-194.8.1.el5.img
#initrd-2.6.18-194.8.1.el5.img: ASCII cpio archive (SVR4 with no CRC)
Let's open the compress cpio file:
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mkdir initrd_uncompressed
cd initrd_uncompressed
cpio -dumi < ../initrd-2.6.18-194.8.1.el5.img
To pack modified content back into initrd image do the following:
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find . |cpio -H newc -ov |gzip -c - > ../initrd-2.6.18-194.8.1.el5.img
http://sourceforge.net/apps/mediawiki/x ... ing_initrd
