Re: [arch-releng] [PATCH 1/1] mkfs: limit size of ext4 block group descriptor table

On 08/22/2014 06:31 PM, Christian Hesse wrote:

Gerardo Exequiel Pozzi on Fri, 2014/08/22 14:39:

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On 08/22/2014 09:59 AM, Christian Hesse wrote:

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From: Christian Hesse

The ext4 filesystems are create with a fixed size of 32GB. After mkfs the empty filesystem already has a disk usage of about 4.3MB. Limiting the size of ext4 block group descriptor table reduces this to just 312KB. --- archiso/mkarchiso | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/archiso/mkarchiso b/archiso/mkarchiso index 2de026e..8c3bfbf 100755 --- a/archiso/mkarchiso +++ b/archiso/mkarchiso @@ -205,7 +205,7 @@ _mkairootfs () { if [[ ${quiet} == "y" ]]; then _qflag="-q" fi - mkfs.ext4 ${_qflag} -O ^has_journal -E lazy_itable_init=0 -m 0 -F "${work_dir}/airootfs.img" + mkfs.ext4 ${_qflag} -O ^has_journal -E lazy_itable_init=0,resize=33G -m 0 -F "${work_dir}/airootfs.img" tune2fs -c 0 -i 0 "${work_dir}/airootfs.img" &> /dev/null _msg_info "Done!" _mount_airootfs

Nice point. But I guess, should be better to disable it at all using ^resize_inode (304K, haha ;))

Ah, did not know that. Great! ;)

Yup! https://projects.archlinux.org/archiso.git/commit/?id=9f889900654e991ec644d4... Thanks.