1.8 KiB
| title | headline | tags |
|---|---|---|
| Rescuing a broken asahi linux workstation | How I used Alpine linux as a rescue system | Linux, Asahi |
On my main machine, I'm currently using Asahi Linux (on a macbook m1). I've recently broken my system, which wasn't able to boot because of a broken /etc/fstab.
On my previous setups, I was able to easily plug an usb key and boot to it to solve my issues, but here I wasn't sure how to deal with it.
After playing a bit (without much luck) with qemu and vagrant, someone pointed me to the right direction: using alpine linux.
Here's what I did to solve my broken install:
First, install this alpine linux on a key.
Download the iso image here, and copy it to a key. I'm not sure why, but dd didn't work for me, and I ended up using another tool to create the usb from the iso.
# When booting, press a key to enter u-boot. Then:
env set boot_efi_bootmgr
run bootcmd_usb0
Which should get you a session. When connected, do the following:
# to find the parition you want to mount, marked EFI something
lsblk -f
mount label="EFI - FEDOR" /mnt
# Install the wifi firmware
cd /lib/firmware
tar xvf /mnt/vendor/firmware.tar
/root/update-vendor-firmware
rm /etc/modprobe.d/blacklist-brcmfmac.conf
modprobe brcmfmac
# Connect to the wifi
/etc/init.d/iwd start
iwctl
In my case, I wanted to mount a btrfs filesystem to fix something inside.
apk add btrfs-progs
echo btrfs >> /etc/modules
modprobe btrfs
mount LABEL="fedora" /opt/fedora
I then could access the filesystem, and made a fix to it.
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