> -----Original Messages----- > From: "Steven Tardy" <sjt5atra at gmail.com> > Sent Time: 2018-02-26 10:48:48 (Monday) > To: "CentOS mailing list" <centos at centos.org> > Cc: > Subject: Re: [CentOS] How to update modules in iniramfs fastly > > On Sun, Feb 25, 2018 at 8:29 PM wuzhouhui <wuzhouhui14 at mails.ucas.ac.cn> > wrote: > > > I know dracut can update modules in initramfs, but I think it is too > > slow. So I'm wondering what is the fastest way to update modules in > > initramfs of CentOS 7? > > > `dracut` calls `mkinitrd` which rebuilds the initrd file. . . you could do > it manually but that is prone to errors ( > https://access.redhat.com/solutions/24029). This solution does not work in CentOS 7, because initramfs in CentOS 7 is not a gzipped cpio: [root at bogon a]# file /boot/initramfs-3.10.0-693.el7.x86_64.img /boot/initramfs-3.10.0-693.el7.x86_64.img: ASCII cpio archive (SVR4 with no CRC) If I use zcat /boot/initrd-2.6.18-164.6.1.el5.img | cpio -idmv to uncompress initramfs, it will report errors: [root at bogon a]# zcat /boot/initramfs-3.10.0-693.el7.x86_64.img | cpio -idmv gzip: /boot/initramfs-3.10.0-693.el7.x86_64.img: not in gzip format cpio: premature end of archive > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos