> Am 26.02.2018 um 06:46 schrieb wuzhouhui <wuzhouhui14@xxxxxxxxxxxxxxxx>:
>
>> -----Original Messages-----
>> From: "Steven Tardy" <sjt5atra@xxxxxxxxx>
>> Sent Time: 2018-02-26 10:48:48 (Monday)
>> To: "CentOS mailing list" <centos@xxxxxxxxxx>
>> Cc:
>> Subject: Re: How to update modules in iniramfs fastly
>>
>> On Sun, Feb 25, 2018 at 8:29 PM wuzhouhui <wuzhouhui14@xxxxxxxxxxxxxxxx>
>> 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@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@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
Maybe some ucode archive is in front of the initrd archive.
Did you try to unpack it without uncompressing it? Whats the contents?
--
LF
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