get file via tftp and write to filesystem, get length of tftp transfer
Hello, is it possible to download a file via network (tftp) and write it to a filesystem as ext4? This looks like a combination of tftpboot and ext4write but how to get sizebytes? I don't find how to get the length information from tftpboot into a variable - it seems to me only displayed on screen. Did I miss something? Thanks for you patience. Elmar
On Tue, Nov 30, 2021 at 07:51:28AM +0100, Elmar Psilog wrote:
Hello, is it possible to download a file via network (tftp) and write it to a filesystem as ext4? This looks like a combination of tftpboot and ext4write but how to get sizebytes? I don't find how to get the length information from tftpboot into a variable - it seems to me only displayed on screen. Did I miss something?
The filesize environment variable is almost always set when we "read" something from a source, including tftp.
On Tue, Nov 30, 2021 at 07:51:28AM +0100, Elmar Psilog wrote:
Hello, is it possible to download a file via network (tftp) and write it to a filesystem as ext4? This looks like a combination of tftpboot and ext4write but how to get sizebytes? I don't find how to get the length information from tftpboot into a variable - it seems to me only displayed on screen. Did I miss something?
The filesize environment variable is almost always set when we "read" something from a source, including tftp.
Thanks Tom! How could I miss that?
Writing ext4 only works if it was formatted with -O ^metadata_csum.
Best regards, Elmar
On Wed, Dec 01, 2021 at 02:58:05PM +0100, Elmar Psilog wrote:
On Tue, Nov 30, 2021 at 07:51:28AM +0100, Elmar Psilog wrote:
Hello, is it possible to download a file via network (tftp) and write it to a filesystem as ext4? This looks like a combination of tftpboot and ext4write but how to get sizebytes? I don't find how to get the length information from tftpboot into a variable - it seems to me only displayed on screen. Did I miss something?
The filesize environment variable is almost always set when we "read" something from a source, including tftp.
Thanks Tom! How could I miss that?
Writing ext4 only works if it was formatted with -O ^metadata_csum.
Yes, there's https://patchwork.ozlabs.org/project/uboot/patch/20210212165747.207979-1-meg... but someone needs to pick it up and re-spin it.
participants (2)
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Elmar Psilog -
Tom Rini