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-rw-r--r--os-boot/README.md4
1 files changed, 2 insertions, 2 deletions
diff --git a/os-boot/README.md b/os-boot/README.md
index 72b84af..bcb220b 100644
--- a/os-boot/README.md
+++ b/os-boot/README.md
@@ -81,10 +81,10 @@ tail -f /tmp/console.log
The 64-bit seL4 image runs its test-suite, which can take a very long time in a simulator:
```
-./c_emulator/riscv_sim_RV64 -d -b os-boot/rv64-64mb.dtb -t /tmp/console.log os-boot/sel4-rv64.bbl > /tmp/exec-trace.log 2>&1 &
+./c_emulator/riscv_sim_RV64 -b os-boot/rv64-64mb.dtb -t /tmp/console.log os-boot/sel4-rv64.bbl > >(gzip -c - > /tmp/exec-trace.log.gz) 2>&1
```
The 64-bit FreeBSD image requires hardware PTE update support (`-d`):
```
-./c_emulator/riscv_sim_RV64 -d -b os-boot/rv64-64mb.dtb -t /tmp/console.log os-boot/freebsd-rv64.bbl > /tmp/exec-trace.log 2>&1
+./c_emulator/riscv_sim_RV64 -d -b os-boot/rv64-64mb.dtb -t /tmp/console.log os-boot/freebsd-rv64.bbl > >(gzip -c - > /tmp/exec-trace.log.gz) 2>&1
```