Re: LZ4 decompression on Boot
There is no "-l" (streaming) switch available on the r122 version of LZ4 I
am running.
I have see the "-l" option mentioned in other (non-Debian) forums however.
Regards,
Andre
En réponse à Vanessa Blöchinger <vanessa.bloechinger@ulukai.org> :
> ------------------ Début du message d'origine --------------------
>
> On 2014-10-29 10:22, Andre Massena wrote:
> > Hello all,
> >
> >
> > having trawled through several search engines and perused
> various Debian
> > lists, I am still in the dark...
> >
> > I am running Debian Jessie (Kernel 3.17.1) on a Thinkpad
> X230. I would like
> > to use LZ4 to compress/decompress the kernel on booting.
> > As per apt-get, the release of liblz4-1 I am running is
> r122-2.
> >
> > I have the following kernel settings -
> >
> > CONFIG_HAVE_KERNEL_LZ4=y
> > CONFIG_KERNEL_LZ4=y
> > CONFIG_KERNEL_LZ4=y
> > CONFIG_ZRAM_LZ4_COMPRESS=y
> > CONFIG_CRYPTO_LZ4=y
> > CONFIG_CRYPTO_LZ4HC=y
> > CONFIG_LZ4_COMPRESS=y
> > CONFIG_LZ4HC_COMPRESS=y
> > CONFIG_LZ4_DECOMPRESS=y
> > CONFIG_DECOMPRESS_LZ4=y
> >
> > in /etc/initramfs-tools/conf.d I have a file called "lz4"
> which contains the
> > line
> > COMPRESS=lz4c.
> > I subsequently run update-initramfs with the appropriate
> switches and reboot.
> >
> >
> > Result is a "initramfs unpacking failed: junk in compiled
> archive" message
> > at boot.
> >
> >
> > Does anyone have an idea what I might have done
> wrong/incorrect or indeed
> > any pointers?
> >
> >
> >
> > Regards,
> >
> >
> >
> > Andre
> >
> Hi Andre,
>
> looks like the kernel is using an older, less standardized
> format for
> its lz4 compression. Use the -l switch on lz4c for linux
> kernel support.
>
> See the lz4 man page and
> https://code.google.com/p/lz4/issues/detail?id=66#c2
>
> Regards
> Vanessa
>
>
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>
> ------------------- Fin du message d'origine ---------------------
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