100 lines
2.1 KiB
Markdown
100 lines
2.1 KiB
Markdown
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# How to make rootfs writable
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1. Open Citadel terminal
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2. Su to root
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$ su
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3. Remount root as read-write
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# mount -o remount,rw /
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# How to change timezone
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1. Make rootfs writable
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2. Run Setting application in Gnome, change timezone in Details -> Date & Time
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# How to change Gnome lock screen passwd
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1. Open Citadel terminal
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2. Generate new password with openssl
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$ openssl passwd
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Password:
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Verifying - Password:
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sGYyWXqDuh64g
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3. Su to root
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$ su
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4. Make rootfs writable
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# mount -o remount,rw /
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5. Copy new password hash into /etc/shadow
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# vim /etc/shadow
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# How to install image update
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1. Open Citadel terminal
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2. Su to root
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3. Determine if current boot is from rootfsA or rootfsB. Make sure you don't overwrite the currently mounted rootfs partition!
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# findmnt /
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TARGET SOURCE FSTYPE OPTIONS
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/ /dev/mapper/citadel-rootfsA ext2 rw,relatime,errors=continue,user_xattr
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4. Locate the rootfs update image you want to install
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# file /storage/user-data/primary-home/citadel-image-intel-corei7-64.ext2
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/storage/user-data/primary-home/citadel-image-intel-corei7-64.ext2: Linux rev 1.0 ext2 filesystem data, UUID=d9dd20e9-9286-4c60-9dc3-37c68e36481c (large files)
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5. Write to the correct partition with dd command.
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# dd if=/storage/user-data/primary-home/citadel-image-intel-corei7-64.ext2 of=/dev/mapper/citadel-rootfsB bs=4M
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255+1 records in
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255+1 records out
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1071823872 bytes (1.1 GB, 1022 MiB) copied, 3.01726 s, 355 MB/s
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6. Sync just to be sure everything is flushed to disk, then reboot into new image.
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# sync
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# reboot
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# How to have hardware graphics acceleration for applications
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1. Open Citadel terminal
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2. Su to root
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3. Make rootfs writable
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# mount -o remount,rw /
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4. Enable /dev/dri/renderD128 bind mount in primary.nspawn file
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# vim /etc/systemd/nspawn/primary.nspawn
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# How to use Qemu?
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1. Open Citadel terminal
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2. Su to root
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3. Make rootfs writable
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# mount -o remount,rw /
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4. Enable /dev/kvm bind mount in primary.nspawn file
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# vim /etc/systemd/nspawn/primary.nspawn
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